Ecologia e contribuição dos anelídeos poliquetos para a biomassa bêntica da zona das marés, no litoral norte do Estado de São Paulo

Amaral, A. Cecília Z.

doi:10.1590/s0373-55241979000100001

Cited by 18 publications

(17 citation statements)

References 6 publications

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“…At Costa Azul Beach, where the animals were more exposed to wave action, crustaceans were the dominant taxa, whereas the polychaete S. squamata dominated at Pontal Beach. Along the Brazilian coast, S. squamata occurs in beaches along São Paulo and Paraná State coasts (Amaral 1979; Amaral et al. 1990; Shimizu 1991, 1995; Omena & Amaral 1997), and it is the most characteristic macrofauna species, both in abundance and frequency (Souza & Gianuca 1995; Borzone et al.…”

Section: Discussionmentioning

confidence: 99%

“…At Costa Azul Beach, where the animals were more exposed to wave action, crustaceans were the dominant taxa, whereas the polychaete S. squamata dominated at (Amaral 1979;Amaral et al 1990;Shimizu 1991Shimizu , 1995Omena & Amaral 1997), and it is the most characteristic macrofauna species, both in abundance and frequency (Souza & Gianuca 1995;Borzone et al 1996). Similarly, Barros et al (2001) found that S. squamata was the most representative species on a dissipative beach of the Paraná State coast, representing 70% of the total macrofauna abundance.…”

Section: Discussionmentioning

confidence: 99%

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Community structure of macrobenthos in two tropical sandy beaches with different morphodynamic features, Rio de Janeiro, Brazil

Fernandes

Soares-Gomes

2006

Marine Ecology

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The macrobenthos of two exposed tropical sandy beaches in Rio de Janeiro (Brazil) were compared in relation to density, species richness, and vertical zonation. Biological and sediment samplings were carried out in the austral winter of 2002 and the austral summer of 2003. The sampling design consisted of 10 transects perpendicular to the water line, evenly divided into strata. A sampling unit was taken in each stratum with a 0.04 m2 quadrat sampler. Beaches were also compared according to physical features, such as slope, wave period, wave height, and grain size. According to Dean's Ω morphodynamic index the Pontal is a dissipative beach while the Costa Azul is a reflective one. The mean grain size ranged from median to coarse sand in Costa Azul, whereas in Pontal it ranged from median to very fine sand. Eleven species were collected in the two beaches. Crustaceans were the dominant in the Costa Azul Beach, while the polychaete Scolelepis squamata dominated the Pontal beach. A negative correlation was found between the density of the macrobenthos and mean grain size, and beach slope. On the other hand, the Dean's parameter correlated positively with faunal density. Based on the results of ANOSIM, in both beaches, two groups of stations were identified, defining an upper and a lower beach zone along the vertical distribution of the macrobenthos.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Community structure of macrobenthos in two tropical sandy beaches with different morphodynamic features, Rio de Janeiro, Brazil

Fernandes

Soares-Gomes

2006

Marine Ecology

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“…These worms can reach high abundance and biomass on sheltered beaches, mangrove £ats and sand £ats, occurring mainly in the upper level of the intertidal region (Lana et al, 1997). The broad distribution of L. acuta and its probable ecological importance in marine food webs have interested many authors (Amaral, 1979;Bemvenuti et al, 1992;Ieno & Bastida, 1998;Ieno et al, 2000). Its population dynamics and secondary production on a tidal £at on the south-east coast of Brazil were also investigated (Omena & Amaral, 2000).…”

Section: Introductionmentioning

confidence: 99%

Morphometric study of the nereidid Laeonereis acuta (Annelida: Polychaeta)

Omena

Amaral

2001

J. Mar. Biol. Ass.

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In order to ¢nd the most suitable parameter for measuring the nereidid Laonereis acuta, correlations between total length or weight and eight morphological measurements: width of prostomium and 2nd, 6th, 13th and 19th setigers, length of the prostomium, length through segment 6th and length through segment 13th, were established. The width measurements showed the highest values of r, and were the most reliable indicators of size. Comparisons between weight and morphological measurements showed a similar pattern as well as negative allometric growth.

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“…Lewis & Stoner (1983) observed that capitelid polychaetes aggregated under Thalassia plants where the concentl-ationof detritus material can be higher. This species is also known to be resistant to pollution but not to wide salinity ranges (Amaral, 1979). Flynn et aI.…”

Section: Discussionmentioning

confidence: 99%

Influence of Spartina alterniflora and tide level on the structure of polychaete associations in an euryhallne salt marsh in cananéia lagoon estuarine region (SE Brazil)

Attolini

Flynn

Tarararn

1997

Rev. Bras. Oceanogr.

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(Caixa. Postal 66149, São Paulo, SP, Brasil) . Abstract: Polychaete species composition, abundance and seasonal variation were analyzed in relation to Spartina alterniflora cover and tide levei at Ponta do Arrozal, Cananéia, during 1989/1990. Two intertidal stations were located on the S. alterniflora OOlt,one ca mean high water of neap tides (MHWN) and the other ca mean high water of spring tides (MHWS). Two other stations were established at corresponding tide levels at an adjacent site devoid of vegetation. A total of 17 species were collected. Each station was sampled twice seasonally with a 20 em of diameter corer. Capitella capitata, Isolda pulchella, Nereis oligohalina and Lumbrineris sp were the most abundant species. Statistically significant differences between the vegetated and bare sites considered were observed for the number of species, density, diversity and evenness, with their values OOinghigher at the vegetated site. Multivariate analysis showed spatial variations of the fauna according to vegetation cover and tide leveI. In relation to vegetation cover, polychaetes assemblages were distinguishable mainly by individual species densities of the more common species, since the most abundant species were present at the vegetated and bare sites. In relation to tide leveI, the faunal densities and number of species at the MHWN station were significantly higher than those at the MHWS station mainIy at the bare site.. Resumo: Analisou-se a composição, abundância e variação sazonal de espécies de poliquetas em relação à cobertura vegetal de Spartina alterniflora e o nível de maré na Ponta do Arrozal, Cananéia, nos anos 1989/1990. Duas estações entremarés foram estaOOlecidasno cinturão de S. alterniflora, uma na linha da média de marés altas de quadratura (LMMQ) e outra, na linha da média de marés altas de sizígia (LMMS). Duas outras estações de coleta foram estaOOlecidasa níveis de maré correspondentes, em um local adjacente desprovido de vegetação. Cada estação foi amostrada duas vezes à cada estação do ano, com auxílio de um corer de 20 em de diâmetro. Foram obtidas 17 espécies, sendo as mais abundantes Capitella capitata, Isolda pulchella, Nereis oligohalina e Lumbrineris sp. Diferenças estatisticamente significativas foram observadas em relação ao número de espécies, densidade, diversidade e equidade, sendo os valores destes índices sempre maiores no local vegetado. A análise multivariada mostrou uma variação espacial da fauna em relação à presença de cobertura vegetal e níveis de maré. Em relação à cobertura vegetal, associações de poliquetas foram distinguíveis principalmente pelas diferentes densidades das espécies mais comuns, já que a maioria destas espécies foram encontradas em ambos os locais. Em relação ao nível de maré, tanto as densidades quanto o número de espécies foram significativamente mais altos no nível LMMQ, principalmente no local desprovido de vegetação.. Descriptors: PIant cover, Tide leveI, Intertidal, Polychaeta associations, Spartina alterniflora marsh, Cananéia, Brazil.

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Ecologia e contribuição dos anelídeos poliquetos para a biomassa bêntica da zona das marés, no litoral norte do Estado de São Paulo

Cited by 18 publications

References 6 publications

Community structure of macrobenthos in two tropical sandy beaches with different morphodynamic features, Rio de Janeiro, Brazil

Community structure of macrobenthos in two tropical sandy beaches with different morphodynamic features, Rio de Janeiro, Brazil

Morphometric study of the nereidid Laeonereis acuta (Annelida: Polychaeta)

Influence of Spartina alterniflora and tide level on the structure of polychaete associations in an euryhallne salt marsh in cananéia lagoon estuarine region (SE Brazil)

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