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Regeneration patterns in Naineris aurantiaca (Muller, 1858) (Annelida, Orbiniidae) Muller, Muller (Muller 1858 Annelida, Annelida (Annelida Orbiniidae 185 18 1
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Alvarez, Ricardo

; Pires, Estela

; Valerio, Giovanna

; Domenico, Maikon Di

Ocean and Coastal Research

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2024, Volumen 72 Supl. 1 elocation e24087

Resumen: En | Texto: En | PDF: En

Abstract Regeneration is a widespread ability in annelids, and each species and developmental stage may presente differences in healing and regeneration processes. Some species can completely regenerate the posterior or anterior region or both. Among the orbiniids, regeneration studies are scarce. In Naineris aurantiaca (Muller, 1858), first species of Naineris described in Brazil, studies about the species’ biology and regeneration capabilities are absent. Aiming to observe the regeneration capabilities of N. aurantiaca and its abnormalities, we sampled the specimens from Lagoa da Sereia Beach, Mel Island, Brazil, among algae tufts and between the mussel’s shells. The experimental design consisted of three different amputations: i) at the end of the thorax—creating treatment AM (anterior and medium) and P (posterior) —; ii) at the chaetiger where branchiae first appear—treatment A (anterior) and MP (medium and posterior) —; iii), and combined—treatment A (anterior), treatment M (medium) and P (posterior). Analysis showed that time (weeks) and treatments (A, AM, M, MP, P) affected survivorship and other features such as length and width. Treatments AM and A had higher mortality rates than P and MP, showing robust anterior regeneration. Treatment M had no survivors. Mean size and width were higher in treatment MP. Remarkable and robust head regeneration and inability to regenerate the gut and the branchial segments suggests that food absorption and gas exchange are key functions in this species. annelids processes both orbiniids scarce Muller, Muller (Muller 1858, 1858 , 1858) Brazil absent N abnormalities Beach Island mussels mussel s shells amputations i thoraxcreating thorax creating medium (posterior — ii appeartreatment appear iii, iii iii) combinedtreatment combined anterior, posterior. . weeks (weeks A, (A survivors 185 18 1

https://doi.org/10.1590/2675-2824072.24024

The high biodiversity of benthic organisms in a coastal ecosystem revealed by an integrative approach
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Amaral, A. Cecília Z.

; Cunha, Beatriz P.

; Checon, Helio H.

; Godoy, Angélica S. de

; Silva, Camila F. da

; Corte, Guilherme N.

; Nogueira, João M. de M.

; Fukuda, Marcelo V.

; Steiner, Tatiana M.

; Kawauchi, Gisele Y.

; Turra, Alexander

; Denadai, Márcia R.

; Ferreira, Luciane

; Mendonça, Joel B. de

; Tavares, Marcos

; Leite, Fosca P. P.

; Costa, Mariana F. B.

; Siqueira, Silvana G. L.

; Vieira, Leandro M.

; Dias, Gustavo M.

; Teixeira, Joyce A.

; Rocha, Rosana M.

; Gusmão, Luciana C.

; Borges, Michela

; Alitto, Renata Machado, Fabrizio M. Passos, Flávio D. Cunha, Carlo M. Simone, Luiz R.L. Araujo, Ana Paula G. Carbayo, Fernando Bahia, Juliana Bulnes, Verónica N. Castello-Branco, Cristiana Hajdu, Eduardo Vilas-Boas, Ana Carolina Garraffoni, André R. S. Schockaert, Ernest Fonseca, Gustavo Domenico, Maikon Di Curini-Galletti, Marco Sørensen, Martin V. Hochberg, Rick Oliveira, Ana Julia F. C. de Zampieri, Bruna Del B. Chinelatto, Roberta M. Migotto, Alvaro E.

Biota Neotropica

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2024, Volumen 24 Nº 2 elocation e20231583

Resumen: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo O aumento da modificação dos habitats e da perda de espécies demanda esforços consistentes para descrever e compreender os padrões de biodiversidade. O programa BIOTA/FAPESP foi criado nesse contexto e é uma iniciativa de sucesso para promover estudos em biodiversidade e conservação no Brasil. O BIOTA/Araçá é um projeto interdisciplinar que promoveu uma avaliação detalhada da biodiversidade da Baía do Araçá, um ecossistema costeiro localizado ao Norte do estado de São Paulo, Sudeste do Brasil. A baía engloba múltiplos habitats, tais como praias, manguezais, costões rochosos, e uma planície de maré, e também fornece importantes serviços ecossistêmicos. Infelizmente, a baía está sujeita à conflitos sócio-ambientais complexos que contrastam demandas econômicas, sociais e ambientais (i.e. a expansão das atividades do porto vizinho vs. a pesca artesanal de pequena escala e a proteção da biodiversidade). O presente estudo apresenta um levantamento das espécies bentônicas que ocorrem nos diferentes habitats da Baía do Araçá, incluindo dados obtidos durante o projeto BIOTA/Araçá e de investigações realizadas anteriormente na área. As espécies bentônicas desempenham um papel importante no ambiente marinho, e estudar a diversidade desses organismos que vivem associados ao fundo é indispensável para compreender o funcionamento do meio ambiente. A macrofauna, meiofauna, e microorganismos associados aos fundos consolidado e inconsolidado foram listados, e informações adicionais foram fornecidas para cada espécie, tais como a distribuição geográfica e nos habitats. O checklist inclui 826 espécies, quase 70% registradas durante o projeto BIOTA/Araçá. Os taxa mais especiosos foram os anelídeos (225 spp.), moluscos (194 spp.), e crustáceos (177 spp.). Entre as espécies bentônicas listadas, sete são endêmicas da Baía do Araçá, 14 são consideradas ameaçadas de extinção, e sete são exploradas economicamente. A baía é a localidade tipo de vários taxa, e 11 novas espécies bentônicas foram descritas com base em espécimes amostrados durante o projeto. Este projeto mostra a importância da Baía do Araçá como um ambiente de riqueza biológica única e demonstra a necessidade de esforços para a sua conservação considerando as atuais ameaças. BIOTAFAPESP BIOTA FAPESP Brasil BIOTAAraçá Paulo praias manguezais rochosos maré ecossistêmicos Infelizmente sócioambientais sócio econômicas i.e. ie i (i.e vs . biodiversidade) área marinho macrofauna meiofauna listados espécie 82 70 225 (22 spp., spp spp. , spp.) 194 (19 177 (17 spp.. listadas 1 extinção economicamente ameaças i.e 8 7 22 (2 19 (1 17 2 (

Abstract Increasing habitat modification and species loss demand consistent efforts to describe and understand biodiversity patterns. The BIOTA/FAPESP Program was created in this context and it has been a successful initiative to promote studies on biodiversity and conservation in Brazil. The BIOTA/Araçá is an interdisciplinary project that provided a detailed evaluation of the biodiversity of Araçá Bay, a coastal seascape located on the North coast of the state of São Paulo, Southeast Brazil. The bay encompasses multiple habitats, such as beaches, mangroves, rocky shores, and a tidal flat, and provides important ecosystem services. Unfortunately, the bay is the subject of complex social-environmental conflicts that oppose economic, social, and environmental demands (i.e., the expansion of neighboring harbor activities vs. small-scale artisanal fisheries and protection of biodiversity). The present study presents a survey of the benthic species occurring in the different habitats of Araçá Bay, including data obtained during the BIOTA/Araçá project and previous assessments of the area. The benthic species play an important role in marine environments and studying the diversity of these organisms that live associated with the bottom is indispensable for comprehending the environment’s functioning. The macrofauna, meiofauna, and microorganisms associated with soft and hard bottom were listed, and additional information, such as the habitat and geographical distribution, were provided for each species. The checklist includes 826 species, almost 70% recorded during the BIOTA/Araçá project. The most speciose taxa were the annelids (225 spp.), mollusks (194 spp.), and crustaceans (177 spp.). Seven benthic species are endemic to Araçá Bay, 14 are considered threatened, and seven are economically exploited. Furthermore, the bay is the type locality of many taxa, and 11 new benthic species were described based on specimens sampled during the project. This project shows the importance of Araçá Bay as a unique biologically rich environment and highlights the need for conservation efforts in light of the current threats. patterns BIOTAFAPESP BIOTA FAPESP Brazil BIOTAAraçá Paulo beaches mangroves shores flat services Unfortunately socialenvironmental social economic i.e., ie i e (i.e. vs smallscale small scale biodiversity. . biodiversity) area s functioning macrofauna meiofauna listed information distribution 82 70 225 (22 spp., spp spp. , spp.) 194 (19 177 (17 spp.. 1 threatened exploited Furthermore threats i.e. (i.e 8 7 22 (2 19 (1 17 i.e 2 (

https://doi.org/10.1590/1676-0611-bn-2023-1583

A new species of Herpyllobius Steenstrup and Lütken, 1861 (Copepoda: Cyclopoida) parasitic on Lamispina horsti (Haswell, 1892) (Annelida, Flabelligeridae) from Western Australia Lütken 186 Copepoda (Copepoda Cyclopoida Haswell, Haswell (Haswell 1892 Annelida, Annelida (Annelida Flabelligeridae 18 189 1
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Suárez-Morales, Eduardo

; Salazar-Vallejo, Sergio I.

Nauplius

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2024, Volumen 32 elocation e20240517

Resumen: En | Texto: En | PDF: En

Abstract Herpyllobiid copepods are highly transformed mesoparasites that infect marine benthic polychaete annelids. The genus Herpyllobius Steenstrup and Lütken, 1861, the most diverse in the family, was known to infect exclusively polychaetes of the family Polynoidae, but it was recently reported also on another family. Species of Herpyllobius have been reported mainly from cold latitudes including Arctic and Antarctic areas, except for two subtropical species. During the taxonomic examination of flabelligerid polychaetes collected from a Western Australian coral reef system, a mesoparasitic copepod was found infecting a specimen of Lamispina horsti (Haswell, 1892). The copepod represents an undescribed species of Herpyllobius. The new species, Herpyllobius paulayi n. sp. belongs to a group of congeneric species (Group III) lacking intergenital processes or sclerotized dots. It diverges from the other species in this group by its possession of a unique combination of characters: 1) a globose ectosoma with pilose surface; 2) elongate, thick cylindrical egg sacs with +10 egg rows; 3) endosoma discoid, short, with two lateral, asymmetrical flattened processes and a medial lobe; 4) it attaches to the host prostomium; and 5) it infects a non-polynoid subtropical polychaete species. annelids Lütken 1861 Polynoidae areas system Haswell, Haswell (Haswell 1892. 1892 . 1892) n sp Group III dots characters 1 surface 2 elongate 10 +1 rows 3 discoid short lateral lobe 4 prostomium 5 nonpolynoid non polynoid 186 189 + 18

https://doi.org/10.1590/2358-2936e20240517

An overview of the occurrences of Exogone (Annelida, Syllidae) in Brazil, with the description of a new species Annelida, Annelida (Annelida Syllidae Brazil
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Fukuda, Marcelo V.

; Ribeiro, William M. G.

; Rossi, Raphaela H. C.

; Nogueira, João M. M.

Ocean and Coastal Research

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2024, Volumen 72 Supl. 1 elocation e24046

Resumen: En | Texto: En | PDF: En

Abstract Syllidae is one of the largest families of polychaete annelids, with more than 1,100 described species, comprehending relatively small-bodied, errant animals. Among these, specimens of Exogone can be relatively common in certain areas and substrates, figuring as an important component of the fauna in many locations. In Brazil, 13 species of this genus have been reported, but in some cases with records difficult to confirm/reject. Herein we present an overview of the known diversity of the genus for the country, with additional four new occurrences for the Brazilian coast that were previously only registered in the 'grey literature', and an identification key to the species currently identified along the Brazilian coast; also, we bring the description of Exogone paulolanai sp. nov., raising to 18 the number of Exogone species for the country. annelids 1100 1 100 1,10 smallbodied, smallbodied small bodied, bodied small-bodied animals these substrates locations Brazil reported confirmreject confirm reject confirm/reject country grey literature, literature , literature' also sp nov nov. 110 10 1,1 11 1,

https://doi.org/10.1590/2675-2824072.23161

Lumbrineris lanai n. sp., a new species of polychaete (Annelida: Eunicida: Lumbrineridae) from the Robinson Crusoe Island, Juan Fernandez Archipelago, off the coast of Chile n sp sp. Annelida (Annelida Eunicida Lumbrineridae Island Archipelago
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Díaz-Díaz, Oscar

; Rozbaczylo, Nicolás

; Gárate, Paulina

Ocean and Coastal Research

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2024, Volumen 72 Supl. 1 elocation e24080

Resumen: En | Texto: En | PDF: En

Abstract We describe a new species of the genus Lumbrineris de Blainville, 1828 with material collected in nine diferente locations around the Robinson Crusoe Island, Juan Fernández Archipelago (Lat. 33º 36’ and 33º 46’ S and Long. 80º 47’ and 78º 47’ W) from sandy bottoms, between 4–10 m depth. One hundred seventy-nine specimens were examined. The new species is characterized because M2 have three big teeth and a small distal bump; M3 and M4 are unidentate; composite multidentate hooded hooks reach up to chaetiger 23, with blades of varying lengths, and yellow aciculae. We consider Lumbrineris lanai n. sp. as the only valid species of Lumbrineridae recorded so far in Robinson Crusoe Island. This work contributes to the knowledge of the Chilean insular polychaete fauna and the Lumbrineridae family worldwide. Blainville 182 Island Lat. Lat (Lat º 36 46 Long 47 W bottoms 410 4 10 4–1 depth seventynine seventy examined M bump unidentate 23 lengths aciculae n sp worldwide 18 3 41 1 4– 2

https://doi.org/10.1590/2675-2824072.23172

Assessing the occurrence of alien species on Brazilian freshwater ecosystems: insights from a comprehensive survey ecosystems
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Latini, Anderson Oliveira

; Resende, Daniela Chaves

; Silva, Daniel Paiva

; Lima-Junior, Dilermando Pereira

Acta Limnologica Brasiliensia

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2024, Volumen 36 elocation e19

Resumen: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo: Objetivo Inventariar os danos causados aos ambientes naturais ou à biodiversidade nativa por por espécies exóticas é desafiador. Nós testamos se o número de detecções de espécies exóticas é afetado pelo número total de espécies exóticas ou pela riqueza de exóticas invasoras, com o intuito de predizer que grupos de espécies são mais prováveis futuros invasores. Métodos Nós apresentamos informações obtidas de um senso nacional conduzido sobre organismos exóticos anelídeos, anfíbios, cnidários, crustáceos, macrófitas aquáticas, microrganismos, moluscos, nematelmintos, peixes, platelmintos e répteis para todas as bacias hidrográficas do país. Utilizamos o número de detecções como variável dependente da riqueza de espécies exóticas, por grupo taxonômico e da riqueza de espécies exóticas invasoras. Resultados Nós obtivemos 1.896 detecções de diferentes 183 espécies aquáticas. Peixes e moluscos foram os invasores comuns já que suas detecções são mais frequentes do que o esperado ao acaso, considerando todas as espécies ocorrendo nos ecossistemas de água doce do país. Nós também encontramos relações positivas e robustas entre as detecções por grupo taxonômico e a riqueza em espécies por grupo. Conclusões Os resultados ilustram como o ambiente de água doce brasileiro é frágil a invasões biológicas e destacam a necessidade de ações efetivas direcionadas à questão. A incerteza científica a respeito do status de espécies exóticas e seu podencial invasor é grande, o que leva à necessidade de precaução a respeito destas espécies. Apesar do cenário atual, novas políticas abrem opotunidades para que parques aquáticos com organismos exóticos se dispersem mais no Brasil o que deve aumentar ainda mais a pressão sobre ecossistemas naturais e espécies nativas, reforçando a necessidade já manifestada pela comunidade científica, de maior atenção ao tema. Resumo desafiador invasoras anelídeos anfíbios cnidários crustáceos aquáticas microrganismos nematelmintos peixes país 1896 1 896 1.89 18 acaso questão grande atual nativas tema 189 89 1.8 8 1.

Abstract: Aim Assessing the damage caused to natural environments and native biodiversity by alien species is challenging. We tested whether the number of detections of alien species is affected by total alien or total invader alien species richness, considering the importance of predicting which species are more probable future invaders. Methods We summarized a research information survey conducted on alien amphibians, annelids, aquatic macrophytes, cnidarians, crustaceans, fish, microorganisms, mollusks, nemathelminths, platyhelminths, and reptiles, and for Brazilian watersheds. We used linear regressions between detections and total alien species richness and between detections and invader species richness. Results We obtained 1,896 alien detections of 183 aquatic species in Brazil. Fish and mollusk species were the commonest invaders due to their detections being more frequent than expected by chance, considering all the alien species occurring in Brazilian freshwater ecosystems. We also found positive and robust linear relationships between alien species detections and alien species richness. Conclusions Our results illustrate how Brazilian freshwater systems are fragile to alien invasions and highlight the need for effective action to address this question. Scientific uncertainty in Brazil regarding the status of some alien species and their potential harm is high, highlighting the need for a cautionary overview of invaders. Despite this scenario, new policies create opportunities for aquatic parks with exotic organisms to spread further in Brazil, which, in actual Brazilian conditions, is likely to increase the pressure on natural ecosystems and native species. This reinforces the already expressed need by the scientific community for greater attention to the issue. Abstract challenging amphibians annelids macrophytes cnidarians crustaceans fish microorganisms mollusks nemathelminths platyhelminths reptiles watersheds 1896 1 896 1,89 18 chance question high scenario conditions issue 189 89 1,8 8 1,

https://doi.org/10.1590/s2179-975x6423

Ecological review of the Syllidae (Annelida) associated with sponges (Porifera), including the description of a new species from northeastern Brazil Annelida (Annelida Porifera, Porifera , (Porifera) (Porifera
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Lira, Anny Laura de Oliveira

; Craveiro, Nykon

; Paresque, Karla

; Fukuda, Marcelo Veronesi

; Rosa Filho, José Souto

Ocean and Coastal Research

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2024, Volumen 72 Supl. 1 elocation e24039

Resumen: En | Texto: En | PDF: En

ABSTRACT This study reviews the data published on the ecology of polychaete annelids of the family Syllidae associated with sponges (Porifera) and provides additional empirical data from samples collected at Paiva Beach (northeastern Brazil). This literature review collected data from the Web of Science and Scopus databases, together with additional sources of information, to provide the best possible overview of the available data on the ecological relationships between these organisms. This review identified a total of 76 papers reporting on 68 associations between syllids and sponges, which involved 61 syllid species inhabiting 57 different sponge taxa. Although few studies have provided detailed data on the auto-ecology of the syllids associated with sponges, some information is available on their reproductive patterns, feeding habits, and role in the association. In this study, seven syllid genera were recorded inhabiting sponges of the genus Cinachyrella (Porifera: Tetillidae) at Paiva Beach in Pernambuco, northeastern Brazil, where a predominance of syllids of the genus Branchiosyllis was recorded. The syllids were found either on the outer surface of the sponges or in their inner channels, and most specimens were females, some of which presented stolons, indicating that they were using the sponges as a reproductive substrate. A new species of the genus Branchiosyllis is described based on our collected data. Branchiosyllis lanai sp. nov. can be identified by its relatively enlarged anterior region, cirriphore with a collar, and branchiae varying between domed and multilobed. The new species is compared with its morphologically most similar congeners. A synoptic table of the morphological variation found among the individuals of the type series is also provided, as well as an updated key to the identification of the Branchiosyllis species found on the Brazilian coast. Porifera (Porifera Brazil. Brazil . Brazil) databases organisms 7 6 5 taxa autoecology auto patterns habits association Tetillidae Pernambuco channels females stolons substrate sp nov region collar multilobed congeners coast

https://doi.org/10.1590/2675-2824072.23117

Macrofauna from the sandy shore of the Johnny Cay Regional Natural Park, San Andrés and Providencia, biosphere reserve, Colombian Caribbean region Park Providencia reserve
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Gaurisas, Daniela Y.

; Barrios-Vásquez, Eliana

; Arteaga-Flórez, Catalina

; Mutis-Martinezguerra, Maria A.

; Martínez-Campos, Bibian

Ocean and Coastal Research

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2024, Volumen 72 Supl. 1 elocation e24045

Resumen: En | Texto: En | PDF: En

Abstract Despite their great importance, the sandy shores have not received the attention deserved. In Colombia they have been approached mainly from physical and geological standpoints, with few studies on the associated biodiversity, as is the case of the Johnny Cay Regional Natural Park in the Colombian Caribbean Region. To have a future frame of reference to evaluate and monitor the environmental impact on the sandy coast of Johnny Cay, the macrofaunal community of this ecosystem was characterized. Two stations were established, where three sediment samples were taken per beach zone (infralittoral, mesolittoral, and supralittoral), using a 16 cm diameter core, for a total of nine samples per station. The samples were sieved through a 500 µm mesh and processed in a laboratory. The macrofaunal community of Johnny Cay was represented by 1628 organisms, belonging to 20 families of the phyla Annelida, Nematoda, Mollusca, and Arthropoda (subphylum Crustacea). Annelids were the dominant group, representing 98% of total abundance, with two new family reports (Naididae and Enchytraeidae) for the Colombian Caribbean sandy beaches. The station EST_549 presented 67% of the macrofauna; this station is characterized by its hydro-dynamism, with a change of material due to the division in the opposite direction of the waves. Substrate samples were also taken in each beach zone for sedimentological analysis of grain size, carbonate content, organic matter content, and mineralogy; these variables were correlated with the community structure, obtaining a better correlation between the medium and coarse sands, and the width of the beach zone with the biological component. This work presents the baseline for the macrofaunal community of Johnny Cay sandy shore and sets the initial steps for its preservation and conservation. importance deserved standpoints biodiversity Region established infralittoral, infralittoral (infralittoral mesolittoral supralittoral, supralittoral , supralittoral) 1 core 50 laboratory 162 organisms 2 Annelida Nematoda Mollusca subphylum Crustacea. Crustacea . Crustacea) group 98 abundance Naididae Enchytraeidae beaches EST549 EST 549 EST_54 67 macrofauna hydrodynamism, hydrodynamism hydro dynamism, dynamism hydro-dynamism waves size content mineralogy structure sands component conservation 5 9 EST54 54 EST_5 6 EST5 EST_

https://doi.org/10.1590/2675-2824072.23142

An annotated checklist of Hesionidae Grube, 1850 (Annelida: Errantia) from Brazil with a key to the genera Grube 185 Annelida (Annelida Errantia 18 1
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Marques, Victor Hugo

; Freitas, Roberta

; Ruta, Christine

Ocean and Coastal Research

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2024, Volumen 72 Supl. 1 elocation e24071

Resumen: En | Texto: En | PDF: En

Abstract We present the first checklist of the Hesionidae family species along the Brazilian coast. The family includes approximately 196 nominal species belonging to 33 genera recorded worldwide. This taxonomic list includes synonymized taxa based on systematic revisions, type locality, Brazilian records, and GenBank accession number. We identified 17 species belonging to eight genera as valid occurrences. Hesionids are found along the entirety of the Brazilian coastline, except in the northern region of the country, in which their absence is likely attributed to limited studies in the area. coast 19 3 worldwide revisions locality records number 1 occurrences coastline country area

https://doi.org/10.1590/2675-2824072.23138

10.

Recovery of dried samples from the Helminthological Collection of the Oswaldo Cruz Institute (CHIOC)/Fiocruz through specimen rehydration technique CHIOC/Fiocruz CHIOCFiocruz CHIOC /Fiocruz Fiocruz
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Mainenti, Adriana

; Lopes, Daniela de Almeida Cruz, Alessandra Gomes da Souza, Paulo Victor Ramos de Fonseca, Michelle Cristie Gonçalves da Fernandez, Mônica Ammon Gomes, Delir Corrêa Knoff, Marcelo

Revista Brasileira de Parasitologia Veterinária

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2023, Volumen 32 Nº 2 elocation e000123

Resumen: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo A Coleção Helmintológica do Instituto Oswaldo Cruz é a maior da América Latina e está entre as maiores coleções de referência mundial, com cerca de 40.000 lotes e, aproximadamente, um milhão de espécimes. Seu acervo reúne helmintos parasitos de animais vertebrados e invertebrados da fauna brasileira e de outros países. Seus exemplares são holótipos, parátipos e espécimes representativos de parasitos, pertencentes aos filos Platyhelminthes, Acanthocephala, Nematoda e, ainda alguns espécimes não-helmintos, pertencentes aos filos Annelida e Arthropoda. Parte das amostras preservadas como material líquido foram encontradas dessecadas. Esta condição torna as amostras inviáveis para análise morfológica para propósitos taxonômicos. Portanto, o objetivo deste trabalho foi testar técnicas usadas na reidratação do tegumento dos espécimes que se encontram dessecados e apresentar seus protocolos. Foram analisados 528 lotes, cujos espécimes encontravam-se sem conservantes ou já dessecados: 96 trematodeos digenéticos, 45 cestoides, 22 acantocéfalos, 357 nematoides, quatro hirudíneos e quatro crustáceos pentastomídeos. A técnica de reidratação dos espécimes, utilizando-se apenas água destilada, mostrou-se eficiente na recuperação da maleabilidade tegumentar de todas as amostras trabalhadas no presente estudo. mundial 40000 40 000 40.00 aproximadamente países holótipos Platyhelminthes Acanthocephala nãohelmintos, nãohelmintos não helmintos, não-helmintos Arthropoda dessecadas taxonômicos Portanto protocolos 52 encontravamse encontravam 9 digenéticos 4 cestoides 2 acantocéfalos 35 nematoides pentastomídeos utilizandose utilizando destilada mostrouse mostrou estudo 4000 00 40.0 5 3 400 0 40.

Abstract The Helminthological Collection of the Oswaldo Cruz Institute is the biggest in Latin America and it is among the largest collections at worldwide reference level, with around 40,000 sets of specimens and approximately one million individual specimens. It contains helminths parasites of vertebrate and invertebrate animals that form part of the fauna of Brazil and other countries. The samples comprise holotypes, paratypes and representative specimens of Platyhelminthes, Acanthocephala, Nematoda and other non-helminth phyla, such as Annelida and Arthropoda. Some of the samples preserved in liquid media were found to have dried out. This made it impossible to analyze these samples morphologically for taxonomic purposes. The aim of this study was to test techniques used for rehydration of the tegument of specimens that had been found to have dried out and present protocols for such techniques. A total of 528 specimens that either no longer were immersed in preservatives or had already dried out were analyzed: 96 digenetic trematodes, 45 cestodes, 22 acanthocephalans, 357 nematodes, four hirudineans and four pentastomid crustaceans. The technique of rehydration using only distilled water on the specimens proved to be efficient for recovering tegument malleability, for all samples analyzed in this present study. level 40000 40 000 40,00 countries holotypes Platyhelminthes Acanthocephala nonhelminth non helminth phyla Arthropoda purposes 52 9 trematodes 4 cestodes 2 acanthocephalans 35 nematodes crustaceans malleability 4000 00 40,0 5 3 400 0 40,

https://doi.org/10.1590/s1984-29612023021

11.

New records of annelids from banco de las Ánimas, Colombian Caribbean
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Coneo-Gómez, Shanly

; Sierra-Escrigas, Silvia

; Dueñas-Ramírez, Pedro R.

; García-Urueña, Rocío

Boletín de Investigaciones Marinas y Costeras - INVEMAR

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Jun 2022, Volumen 51 Nº 1 Paginas 9 - 36

Resumen: Es En | Texto: Es En | PDF: Es | PDF: En

RESUMEN El banco de las Ánimas es un ambiente submarino poco estudiado que posee una fauna arrecifal característica y una gran cantidad de especies crípticas desconocidas. Los anélidos son uno de los grupos de invertebrados más comunes en las formaciones coralinas del Caribe colombiano, estos organismos son muy abundantes y variables en sus formas corporales (parapodia, setas y estructuras branquiales), lo cual implica una gran radiación evolutiva. Con el fin de conocer la diversidad de anélidos del ecosistema arrecifal en el banco de las Ánimas se ubicaron cuatro estructuras artificiales (conocidas como estructuras autónomas de monitoreo arrecifal) utilizadas como colectores de fauna a 14 m de profundidad en el sector de Montículo. Se presenta el primer registro para el Caribe colombiano de 23 especies de anélidos de las familias Amphinomidae, Eunicidae, Lumbrineridae, Polynoidae, Sabellidae, Serpulidae, Sigalionidae, Syllidae y Terebellidae. Se resalta la contribución al conocimiento de la fauna de anélidos arrecifales de una zona poco conocida del Caribe colombiano.

ABSTRACT The banco de las Ánimas is a poor studied underwater environment with a characteristic reef fauna and an unknown large number of cryptic species. Annelids are one of the most common invertebrate groups in the coral formations of the Colombian Caribbean; these organisms are very abundant and variable in their body shapes (parapodia, setae, and gill structures), which imply a great evolutionary radiation. In order to know the diversity of annelids in the reef ecosystem in the Banco de las Ánimas, four artificial structures (known as autonomous reef monitoring structures) used as fauna collectors were located at a depth of 14 m in the Montículo sector. The first records for the Colombian Caribbean of 23 species of annelids of the families Amphinomidae, Eunicidae, Polynoidae, Lumbrineridae, Sabellidae, Serpulidae, Sigalionidae, Syllidae, and Terebellidae. The contribution to the knowledge of the fauna of reef annelids of a little poor known area of the Colombian Caribbean is highlighted.

https://doi.org/10.25268/bimc.invemar.2022.51.1.1083

12.

Influence of environmental factors on the bathymetric distribution of the flecked box crab Hepatus pudibundus (Herbst, 1785) (Crustacea: Aethroidea) in the Southeastern Brazilian coast
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Bernardes, Veronica Pereira Mantelatto, Fernando Luis Silva, Thiago Elias da Sousa, Aline Nonato de Bernardo, Camila Hipólito Fransozo, Adilson

Biota Neotropica

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2019, Volumen 19 Nº 1 elocation e20180549

Resumen: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo: Este estudo avaliou as relações dos fatores ambientais e a distribuição espaço-temporal de H. pudibundus, com a hipótese de ocupação diferencial em uma região do litoral sudeste do Brasil. As amostragens ocorreram mensalmente no período de janeiro a dezembro de 2000, ao longo de nove transectos de 2 a 40 m de profundidade, na região de Ubatuba, litoral norte de São Paulo. Foram coletados 1808 indivíduos de H. pudibundus. A maior abundância foi registrada no inverno nos transectos 10 a 25 m de profundidade. A abundância foi positivamente correlacionada com o teor de matéria orgânica e a textura do sedimento (valores de phi). Durante o outono e inverno com a retração da ACAS ocorre o revolvimento do sedimento e a supensão da macrofauna detritívora e filtradora, aumentando a disponibilidade de alimento. Locais caracterizados por sedimentos mais finos oferecem maior disponibilidade de alimentos, além de facilitar o comportamento de H. pudibundus se enterrar. Devido ao comportamento predatório oportunista, esta espécie se alimenta de uma grande variedade de organismos, incluindo moluscos, anelídeos e foraminíferos, que são as presas mais abundantes nas áreas estudadas, principalmente em locais com grãos menores.

Abstract: This study evaluated the relationships between environmental factors and the spatio-temporal distribution of H. pudibundus, with the hypothesis of differential occupation in coastal areas of southeastern Brazil. The samplings took place monthly in January-December 2000 period, along nine transects from 2 to 40 m of depth, in Ubatuba region, northern coast of São Paulo. We collected 1808 individuals of H. pudibundus. The highest abundance was recorded in winter in the transects 10-25 m deep. Abundance was positively correlated with organic matter content and texture sediment (phi values). With the retreat of the South Atlantic Central Water (SACW) in autumn and winter, the sediment swirls, suspending the detritivore and filter-feeding macrofauna, increasing the food availability. Sites characterized by finer sediment offer higher food availability, besides facilitating H. pudibundus burying behavior. Due to its opportunistic predatory behavior, this species feeds on a variety of organisms, including mollusks, annelids and foraminifera, which are preys more abundant in the studied area and in sediments of finer grain size.

https://doi.org/10.1590/1676-0611-bn-2018-0549 821 descargas

13.

Lista faunística comentada de gusanos poliquetos en la bahía de La Paz, Baja California Sur, México (Annelida: Polychaeta) y nuevos registros
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Tovar-Hernández, María Ana Salazar-Silva, Patricia León-González, Jesús Ángel de

Revista mexicana de biodiversidad

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2019, Volumen 90 elocation e902764

Resumen: Es En | Texto: Es En | PDF: Es | PDF: En

Resumen La bahía de La Paz (golfo de California) es un sitio prioritario para su conservación, por lo que contar con una obra que documente la biodiversidad que alberga es una necesidad apremiante. El propósito de este trabajo es proporcionar un inventario actualizado de anélidos poliquetos de la bahía de La Paz, validado taxonómica y geográficamente. Se realizó una búsqueda y recopilación de literatura existente hasta el 2019 y se incluyen nuevos registros. En esta bahía se han registrado 287 especies, 156 géneros y 37 familias. Acrocirrus incisa Kudenov, 1975, Parasabella pallida Moore, 1923, Pseudopotamilla socialisHartman, 1944 y Serpula sp., son nuevos registros. Las familias Sabellidae (25 spp.), Syllidae (23 spp.), Serpulidae (22 spp.), Nereididae (22 spp.), Polynoidae (18 spp.), Capitellidae (17 spp.) y Eunicidae (16 spp.) cuentan con el mayor número de especies, que constituyen 49.8% de los registros. Veinte especies de poliquetos fueron descritos para la bahía de La Paz como localidad tipo; pero solo 17 son válidos. En la dicha bahía, 5 especies de poliquetos son exóticos: Branchiomma bairdi (McIntosh, 1885), Ficopomatus miamiensis (Treadwell, 1934), Hydroides diramphus (Mörch, 1863), H. elegans (Haswell, 1883) e H. sanctaecrucis Krøyer en Mörch, 1863.

Abstract La Paz Bay (Gulf of California) is a priority site for their conservation. Having a contribution that documents its biodiversity is an imperative necessity. The purpose of this contribution is to provide an update inventory of polychaete annelids to La Paz Bay, taxonomically and geographically validated. A search and compilation of literature existing until 2019 about polychaete records was conducted and new records are included. In La Paz Bay, 37 families, 156 genera and 287 species have been recorded. Acrocirrus incisa Kudenov, 1975, Parasabella pallida Moore, 1923, Pseudopotamilla socialisHartman, 1944, and Serpula sp., are new records. Sabellidae (25 spp.), Syllidae (23 spp.), Serpulidae (22 spp.), Nereididae (22 spp.), Polynoidae (18 spp.), Capitellidae (17 spp.) and Eunicidae (16 spp.) have the highest number of species recorded in La Paz Bay, which together constitutes 49.8% of the total records. Twenty species of polychaete were described originally in La Paz Bay as type locality; however, only 17 of these are currently valid. Five species of introduced worms in La Paz Bay have been recorded: Branchiomma bairdi (McIntosh, 1885), Ficopomatus miamiensis (Treadwell, 1934), Hydroides diramphus (Mörch, 1863), H. elegans (Haswell, 1883) and H. sanctaecrucis Krøyer in Mörch, 1863.

https://doi.org/10.22201/ib.20078706e.2019.90.2764

14.

Paleosols and related soil-biota of the early Miocene Santa Cruz Formation (Austral-Magallanes Basin, Argentina): a multidisciplinary approach to reconstructing ancient terrestrial landscapes
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Raigemborn, M. Sol Krapovickas, Verónica Zucol, Alejandro F Zapata, Luciano Beilinson, Elisa Toledo, Nestor Perry, Jonathan Lizzoli, Sabrina Martegani, Lucía Tineo, David E Passeggi, Esteban

Latin American journal of sedimentology and basin analysis

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Dic 2018, Volumen 25 Nº 2 Paginas 117 - 148

Resumen: En | Texto: En | PDF: En

The middle and upper parts of the lower Miocene Santa Cruz Formation (~17-15.9 Ma) in the southeastern Austral-Magallanes Basin (southern Patagonia, Argentina) crop out as a fluvial succession that in parts is pedogenically modified. The study of the paleosols of this unit combined with the study of ichnofossils, microremains, and fossil vertebrates present in these allows us to reconstruct past environmental, ecological, and climatic conditions, as well as paleolandscape evolution of the Santa Cruz Formation during ~1 my. These reconstructions demonstrate three different stages during which very weak to moderate pedogenesis took place. The first one (middle part of the unit) is an epiclastic distal floodplain bearing Calcisols or paleo-calcic Inceptisols, which record a relatively dense vegetation integrating trees, shrubs, palms, and short grasses. Soil fauna is scarce and it is in association with a vertebrate fauna typical of coastal "Santacrucian assemblages". The second landscape stage (the bottom of the lowermost upper part of the unit) is composed of epiclastic distal floodplain areas and minor pyroclastic proximal floodplain settings that contain mainly Vertisols. Vertisols record an ecosystem dominated by grasses and palms adapted to variable conditions in hydric availability (C4 plants) and by solitary bee larvae, and adult and nymph soil beetles. Finally, up-section, the third stage attests to the existence of an epiclastic and pyroclastic distal and proximal floodplain over which Protosols developed. Past ecosystems supported grass vegetation (C3 plants), oligochaete annelids and a moderately diverse insect soil fauna (interpreted by their trace fossils) composed of solitary bee larvae, soil beetles and their pupae, cicada nymphs, and myriapods. This combined abiotic (paleosols) and biotic (ichnofossils, microremains, and vertebrates) study indicates that several factors controlled the landscape evolution during the early Miocene of southeastern Patagonia. Highly aggrading fluvial conditions, variations in the position in the floodplain and in sedimentation/pedogenesis ratio, the input of pyroclastic materials, the length of landscape stability, changing hydrologic conditions, and fluctuations of wetter and drier phases in a context of relatively warm and humid climate, seem to be the main factors controlling the landscape.

15.

STRUCTURE OF A POLYCHAETE COMMUNITY IN A MANGROVE IN THE NORTHERN COAST OF BRAZIL
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TAVARES CUTRIM, Allana Stéphanie SANTOS SOUSA, Lorena Karine PASSOS RIBEIRO, Rannyele DE OLIVEIRA, Verônica Maria SILVA DE ALMEIDA, Zafira da

Acta Biológica Colombiana

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Dic 2018, Volumen 23 Nº 3 Paginas 286 - 294

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RESUMEN Los poliquetos desempeñan un importante papel en la estructura y funcionamiento de las comunidades bentónicas de manglares; sin embargo, el conocimiento sobre estos organismos permanece escaso en la costa amazónica de Maranhão, Brasil. Este estudio analizó los aspectos ecológicos de la comunidad de poliquetos del manglar Quebra Pote, Estado de Maranhão. Se realizaron cuatro recolectas durante el período de secas y lluvias, entre noviembre 2013 y julio 2014, se delimitó un transecto de 100 metros de longitud, perpendicular a la línea de agua, con tres zonas distantes entre sí de 50 m. Se cuantificaron 521 individuos distribuidos en diez familias y 15 especies; Nephtys simoni, Notomastus sp. y Paraonis sp., correspondieron al 58,92 % del total muestreado. Los poliquetos detritívoros móviles fueron dominantes y abundantes. El manglar Quebra Pote presentó elevados valores de diversidad y equidad. En la distribución espacial, se observó que varias especies estuvieron presentes en todas las zonas del manglar, por ejemplo Capitella sp., Heteromastus sp., N. simoni, Notomastus sp., Paradoneis sp., Paraonis sp., Scoloplos texana, Sigambra grubei y Syllis gracilis magellanica. La diversidad y abundancia de poliquetos fueron mayores en el mediolitoral inferior (Zona 1), con predominio de Avicennia schaueriana. A lo largo de las zonas se observó que la abundancia de poliquetos decrece del mediolitoral inferior hacia al mediolitoral superior, probablemente como consecuencia del desagüe doméstico, que suplantó el efecto de la vegetación.

ABSTRACT Polychaetes play an important role in the structure and functioning of benthic communities in mangroves; however, knowledge about these organisms in the Maranhão Amazon coast is scarcity. This study analyzed the ecological aspects of polychaete community in the Quebra Pote mangrove in Maranhão State. Four sampling campaigns were carried out during both rainy and dry periods between November 2013 and July 2014, using 100 meters long transects set perpendicular to the waterline at three zones 50 m between them. A total of 521 organisms were identified belonging to ten families and 15 species; Nephtys simoni, Notomastus sp., and Paraonis sp. represented 58.92 % of all samples. Mobile deposit-feeders polychaetes were dominant and abundant. The Quebra Pote mangrove showed high values of diversity and evenness. The spatial distribution indicated that several species such as Capitella sp., Heteromastus sp., N. simoni, Notomastus sp., Paradoneis sp., Paraonis sp., Scoloplos texana, Sigambra grubei, and Syllis gracilis magellanica were present in all mangrove zones. The diversity and abundance of polychaetes were greater in lower mesolittoral (Zone 1), with a dominance of Avicennia schaueriana. The abundance of polychaetes decreased along transects from the lower mesolittoral to upper mesolittoral areas, suggesting that the presence of domestic sewage effects supersedes the vegetation effect.

https://doi.org/10.15446/abc.v23n3.67245

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