On the marine free-living copepods off Brazil

Björnberg, Tagea K. S.

doi:10.1590/s0373-55241963000100001

Cited by 78 publications

(47 citation statements)

References 18 publications

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“…They are common copepods in the Brazilian coast and have been cited by Björnberg (1963;, Valentin & Monteiro-Ribas (1993), Vega-Pérez & Hernandez (1997, Lopes et al (1999) and Neumann-Leitão et al (1999).…”

Section: Discussionmentioning

confidence: 95%

“…It has been registered in other regions of the continental shelf off Northeast Brazil but not as one of the most abundant species (Neumann-Leitão et al, 1998;. Björnberg (1963;1980) characterized this species as abundant in coastal waters with salinity above 30 psu and in shelf waters of tropical regions. The dominance of P. quasimodo in the Brazilian shelf waters has been cited by Campaner (1985), Araujo et al (1991), Vega-Pérez & Hernandez (1997 and Lopes et al (1999).…”

Section: Discussionmentioning

confidence: 99%

“…aculeatus is an offshore and shelf species (González & Bowman, 1965;Bowman, 1971) and it has been recorded in the Brazilian coastal and shelf waters (Björnberg, 1963). It occurred in the dry and rainy months in all extension of the continental shelf off Sergipe and Alagoas as well.…”

Section: Discussionmentioning

confidence: 99%

“…crassirostris was more abundant on the inshore shelf, confirming its characteristics as an indicator species of coastal waters and reflecting the influence of estuarine outflow on the shelf. In Brazilian waters it was observed only in coastal or mixed coastal and shelf waters (Björnberg, 1963) and belongs to the central complex of species that appear in all estuaries along the East coast of Brazil (Almeida Prado-Por & Lansac-Tôha, 1984).…”

Section: Discussionmentioning

confidence: 99%

“…They are thermophile species, common in temperatures above 25°C (Björnberg, 1963). In the Northeastern Brazilian coast (Lat.…”

Section: Discussionmentioning

confidence: 99%

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Distribution of paracalanidae species (Copepoda, Crustacea) in the continental shelf off Sergipe and Alagoas States, Northeast Brazil

Araujo

2006

Braz. j. oceanogr.

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The spatial and seasonal distribution of the Paracalanidae species were studied in eighteen stations in the continental shelf off Sergipe and Alagoas States, northeast Brazil, in December, 2001 and 2003, and in June, 2002 and 2003. The Paracalanidae family was constituted by coastal and shelf species such as Parvocalanus crassirostris, Paracalanus quasimodo, P. indicus and P. aculeatus and oceanic species, Calocalanus pavo and Acrocalanus longicornis. Density values were higher in stations located at 10 m isobath with respect to those located at 20 and 30 m depths. Paracalanidae abundance presented differences between seasons with values higher in June (2002, 2003) than in December (2001, 2002). All species were more abundant in the rainy season except Parvocalanus crassirostris. Paracalanus quasimodo was the dominant species with average densities of 949, 740 and 41 ind.m-3 in December months and 4231, 2389 and 1185 ind.m-3 in June months, at stations with local depths of 10, 20 and 30 m, respectively. Canonical correspondence analysis showed that salinity and temperature were the environmental variables that presented significant correlation with the distribution of Paracalanidae species, probably because these variables are influenced by the estuarine waters and by the dynamic of oceanic water masses in the continental shelf.
A distribuição espacial e sazonal das espécies de Paracalanidae foram estudadas em dezoito estações na plataforma continental dos Estados de Sergipe e Alagoas, nordeste do Brasil, em dezembro de 2001 e 2003 e junho de 2002 e 2003. A família Paracalanidae esteve constituída por espécies costeiras e de plataforma tais como Parvocalanus crassirostris, Paracalanus quasimodo, P. indicus e P. aculeatus e por espécies oceânicas, Calocalanus pavo e Acrocalanus longicornis. Os valores de densidade total foram mais elevados nas estações localizadas em isóbata de 10 m decrescendo nas estações localizadas em profundidades de 20 e 30 m. A abundância de Paracalanidae apresentou padrão de flutuação sazonal, com valores mais elevados em junho (2002, 2003) do que em dezembro (2001, 2002). Todas as espécies foram mais abundantes no período chuvoso com exceção do Parvocalanus crassirostris. Paracalanus quasimodo foi a espécie dominante, com densidades médias de 949, 740 e 41 ind.m-3, nos meses de dezembro e de 4231, 2389 e 1185 ind.m-3, nos meses de junho, em isóbatas de 10, 20 e 30 m, respectivamente. A análise de correspondência canônica mostrou que a salinidade e a temperatura foram os fatores ambientais que apresentaram relação significativa com a distribuição das espécies de Paracalanidae, provavelmente porque estes fatores foram influenciados pelas águas estuarinas e pela dinâmica das massas de água oceânicas na plataforma continental

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Section: Discussionmentioning

confidence: 95%