| Texto completo | |
| Autor(es): |
Miranda, Marcel Sabino
;
Castrezana, Luca
;
Machado, Fabrizio Marcondes
;
Moreira, Lucas Buruaem
;
Passos, Flavio Dias
;
Abessa, Denis Moledo de Souza
Número total de Autores: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS; v. 35, n. 7, p. 9-pg., 2025-07-01. |
| Resumo | |
Bivalves are a key group in benthic assemblages. Besides, little is known about this fauna, especially in marine protected areas (MPAs) from neotropical regions, for example, in Brazil. Here, we provide the results of the taxonomic composition and ecology of bivalve assemblages in Xixov & aacute;-Japu & iacute; State Park (XJSP), an MPA from the southeastern Brazilian coast, severely impacted by human activities in its surrounding areas. Sediment sampling was performed at four sites within the MPA boundaries and near two submarine outfalls close to the MPA. The samples were sieved, and the retained organisms were identified to the lowest possible taxonomic level. Community ecology metrics were then applied at each sampling site. A total of 228 whole specimens and two empty shells were collected, representing 20 bivalve species, of which two may represent new species to science or juveniles of previously known species. The most abundant families were Tellinidae (63 specimens) and Mactridae (57 specimens). These two families, together with unidentified species (51 specimens), account for more than 78% of the individuals. No differences were found for most community descriptors; however, multivariate analysis revealed shifts in assemblage composition between the MPA and sites affected by submarine outfalls, with higher overall abundances in the latter. The results of this study are important for the MPA management plan, as they provide an accurate, taxonomically precise inventory that supports conservation efforts. Additionally, a more thorough ecological risk assessment of the contaminated sediments surrounding MPAs is anticipated once non-targeted species are properly inventoried. (AU) | |
| Processo FAPESP: | 22/13237-8 - Revelando padrões no Oceano Atlântico profundo: Os aplacóforos caudofoveados brasileiros (Mollusca) como modelos ecológicos e biogeográficos |
| Beneficiário: | Marcel Sabino Miranda |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 21/08471-9 - Análise global do transcriptoma de organismos bentônicos usados como modelos para caracterização de efeitos tóxicos de sedimentos marinhos contaminados |
| Beneficiário: | Lucas Buruaem Moreira |
| Modalidade de apoio: | Bolsas no Brasil - Programa BIOTA - Jovens Pesquisadores |
| Processo FAPESP: | 23/16683-1 - Distribuição latitudinal de moluscos associados à macroalgas na costa brasileira e do Caribe |
| Beneficiário: | Luca Castrezana |
| Modalidade de apoio: | Bolsas no Brasil - Iniciação Científica |
| Processo FAPESP: | 22/12606-0 - Do frio para o calor: enriquecendo as coleções de moluscos antárticos da UNICAMP |
| Beneficiário: | Flávio Dias Passos |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa BIOTA - Regular |
| Processo FAPESP: | 20/00068-8 - Análise global do transcriptoma de organismos bentônicos usados como modelos para caracterização de efeitos tóxicos de sedimentos marinhos contaminados |
| Beneficiário: | Lucas Buruaem Moreira |
| Modalidade de apoio: | Auxílio à Pesquisa - Programa BIOTA - Jovens Pesquisadores |