7 research outputs found

    LAONICE BRANCHIATA, A NEW SPECIES OF SPIONIDAE (ANNELIDA; POLYCHAETA) FROM THE SOUTHEASTERN BRAZILIAN COAST

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    Laonice branchiata, a new spionid polychaete, is described based on material collected in shallow waters of estuarine and shelf environments off the States of Paraná, São Paulo and Rio de Janeiro (SE Brazil).(Laonice branchiata, uma nova espécie de Spionidae da costa sudeste brasileira). Laonice branchiata, uma nova espécie de poliqueta da família Spionidae, é descrita a partir de material coletado em ambientes estuarinos e de plataforma ao longo dos estados do Paraná, São Paulo e Rio de Janeiro (costa sudestedo Brasil)

    Restrospectiva do Helicosiphon biscoeensis Gravier, 1907 (Polychaeta: Serpulidae):\ud características morfológicas e ecológicas

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    This note gathers the main information and illustrations published concerning the Antarctic/Subantarctic polychaete Helicosiphon biscoeensis (Spirorbinae). It provides a short historical overview about the knowledge of this species, including information on its morphology and ecology, and contributes new digital images.Esta nota reúne a maior parte das informações e ilustrações publicadas sobre o poliqueta antártico/subantártico Helicosiphon biscoeensis (Spirorbinae), faz uma breve retrospectiva da evolução de seu conhecimento, incluindo considerações sobre sua morfologia e ecologia, e contribui com imagens digitais inéditas.CNPq - 52.0293/2006-1INCT-APACNPq - Process 574018/2008-5FAPERJ - E-26170.023/200

    A contribution to the acquirement of the fish fauna from the northern littoral of State of São Paulo

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    A two-year program of biological sampling was carried out on the area comprised by the islands of Anchieta, Vitória and Couves on the northern coast of São Paulo State, Brazil. Most of the samples were collected by otter-trawl since the demersal fish were the main interest of the study. In spite of the small size of the nets used - only 30 feet on the mouth - the results obtained as to the number and diversity of the fish found in the area seemed to be significant enough to justify the present communication. As many as 97 species of bony and cartilaginous fish were obtained from 28 controlled catches, along the years 1978-1979. The best represented family, as could be expeoted were the Sciaenidae but Rajidae, Bothidae and Cynoglossidae were also abundant. Lophius gastrophysus and Merluccius hubbsii. occurred only in depths above 30 m, in agreement with their known distribution in the far southern coast of Brazil. A systematic list of the species and their common names, when available, is given.Na execução de um programa de levantamento das faunas demersal e epibentônica da plataforma do litoral norte do Estado de São Paulo, foram tomadas, em um período de dois anos, 28 amostras da fauna de fundo, utilizando-se redes tipo ottertrawl abrangendo a área compreendida entre as ilhas Anchieta, Vitória e das Couves. A despeito do pequeno tamanho das redes - 30 pés na tralha de bóia -, os resultados, quanto a número e diversidade dos peixes encontrados na área, pareceram ser muito significativos e justificar a comunicação atual. Um total de 97 espécies de peixes, tanto ósseos quanto cartilaginosos, foi obtido em 28 capturas controladas, durante os anos de 1978 e 1979, A família melhor representada foi, como previsto, a dos Sciaenidae; porém, representantes de Rajidae, Bothidae e Cynoglossidae foram também abundantes. Lophius gastrophysus e Merluccius hubbsii, ocorreram apenas em profundidades acima de 30 m, o que concorda com sua distribuição conhecida na costa do extremo sul do país, Uma lista sistemática das espécies e seus nomes populares, quando disponíveis, é dada.14315

    Integrated quality assessment of sediments from harbour areas in Santos-São Vicente Estuarine System, Southern Brazil

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    Santos-São Vicente Estuarine System is a highly populated coastal zone in Brazil and where it is located the major port of Latin America. Historically, port activities, industrial and domestic effluents discharges have constituted the main sources of contaminants to estuarine system. This study aimed to assess the recent status of sediment quality from 5 zones of Port of Santos by applying a lines-of-evidence approach through integrating results of: (1) acute toxicity of whole sediment and chronic toxicity of liquid phases; (2) grain size, organic matter, organic carbon, nitrogen, phosphorus, trace metals, polycyclic aromatic hydrocarbons, linear alkylbenzenes and butyltins; (3) benthic community descriptors. Results revealed a gradient of increasing contamination for metals and organic compounds, alongside with their geochemical carriers. Sediment liquid phases were more toxic compared to whole sediment. Low number of species and individuals indicated the impoverishment of benthic community. The use of sitespecific sediment quality guidelines was more appropriate to predict sediment toxicity. The integration of results through Sediment Quality Triad approach and principal component analysis allowed observing the effects of natural stressors and dredging on sediment quality and benthic distribution. Even with recent governmental efforts to control, pollution is still relevant in Port of Santos and a threat to local ecosystems
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