Trophic relationships between polychaetes and brachyuran crabs on the southeastern Brazilian coast

Petti, Mônica Angélica Varella; Nonato, Edmundo Ferraz; Paiva, Paulo Cesar

doi:10.1590/s1413-77391996000100007

Cited by 20 publications

(17 citation statements)

References 8 publications

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“…It investigates seasonally the species composition, distribution, abundance, biomass, diversity and species richness of macrobenthos, determines the trophic structure of polychaetes and evaluates the changes in the patterns formed in relation to the oceanographic and meteorological characteristics of the area. Also, as the region is subject to a constant anthropic impact this study constitutes a baseline for future monitoring programmes in the area, besides filling up the previously existing gap between our knowledge of the shelf and shelf break areas already studied (Paiva, 1993;Petti et al, 1996;Santos & Pìres-Vanin, 1999;Sumida & Pires, 1997) and the almost unknown near shore.…”

Section: Introductionmentioning

confidence: 98%

Structure and dynamics of the macrobenthic communities of Ubatuba Bay, southeastern Brazilian Coast

Santos

Pires-Vanin

2004

Braz. j. oceanogr.

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Species composition, distribution, density, biomass, diversity and trophic relationships of the macrobenthic communities in Ubatuba Bay, southeastern Brazilian coast, were investigated seasonally from August 1995 to June 1996. Sampling was carried out at 9 stations of between 4 and 13 m depth and taken in duplicate with a 0.1m² van Veen grab. Two hundred and five macrofaunal species were identified, presenting low dominance and frequency. Polychaetes and nematodes dominated, representing 89% of the whole fauna. Spatial variations in the structure of the communities were correlated to sediment type whereas seasonal variations were correlated to the increase in wave size and current disturbance over the substrate during the rainy period. Carnivore and surface deposit-feeder polychaetes were dominant, totalling 81% of the species. Mean grain size, fine sand, very fine sand, silt and clay contents were among the main factors related to the patterns of macrofaunal distribution, density and diversity and to the dominance of trophic groups. Multivariate analysis showed that the area may be divided into two groups of stations each of them characterized, respectively, by the presence of Magelona papillicornis and Mediomastus capensis.
A composição, distribuição, densidade, biomassa, diversidade e relações tróficas das comunidades macrobênticas da Enseada de Ubatuba, costa sudeste brasileira, foram estudadas sazonalmente, de agosto de 1995 a junho de 1996. As amostragens foram realizadas em 9 estações de coleta, situadas entre 4 e 13 m de profundidade, e obtidas em duplicata com pegador de fundo van Veen de 0,1 m² de área amostral. Duzentas e cinco espécies macrobênticas foram obtidas, a maioria apresentando baixa dominância e freqüência. Poliquetas e nemátodes dominaram, representando 89% da fauna total. As variações espaciais na estrutura das comunidades foram correlacionadas ao tipo de sedimento, ao passo que as variações temporais o foram com o aumento da perturbação causada pelas ondas e correntes sobre o substrato durante o período de chuvas. Poliquetas carnívoros e detritívoros foram dominantes, totalizando 81% das espécies. O diâmetro médio das partículas, conteúdo de areia fina, areia muito fina, silte e argila estiveram entre os principais fatores relacionados aos padrões de distribuição da fauna, densidade, diversidade e com a dominância dos grupos tróficos. Análises multivariadas mostraram que a área de estudo pode ser dividida em dois grupos de estações, caracterizados, respectivamente, pela presença de Magelona papillicornis e Mediomastus capensis

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Section: Introductionmentioning

confidence: 98%

Structure and dynamics of the macrobenthic communities of Ubatuba Bay, southeastern Brazilian Coast

Santos

Pires-Vanin

2004

Braz. j. oceanogr.

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“…Considering that the substrate in site 4 is mainly composed of silt and clay, which retain more organic particles, it is clear why the percentage of organic matter content in site was the highest (Castilho et al 2008). The organic matter was not directly related to the abundance of P. punctata and P. mediterranea, but it influences the abundance of Polychaeta which is used as a food resource by both species (Petti et al 1996).…”

Section: Discussionmentioning

confidence: 91%

Spatial and temporal distribution and abundance of two species of Persephona (Decapoda: Brachyura: Leucosiidae) on the southern coast of the state of São Paulo, Brazil

2018

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Spatial and temporal distribution and abundance of two species of Persephona (Decapoda: Brachyura: Leucosiidae) on the southern coast of the state of São Paulo, Brazil. Biota Neotropica. 19(1): e20180534. http://dx.Abstract: Crabs of the genus Persephona are intensely captured in shrimp fisheries as bycatch in the Cananéia region off the coast of the state of São Paulo, Brazil. The analysis of the spatial and temporal distribution of Persephona punctata and Persephona mediterranea could provide information about variation in the abundance of these species, as well as the environmental variables affecting their distribution and the existence of a possible habitat partitioning. Using a shrimp fishery boat equipped with double-rig nets, crabs were monthly captured from July 2012 to June 2014 in seven sites: four in the coastal area adjacent to the Cananéia region and three in the Mar Pequeno estuarine area. The abundances of both species were compared according to spatial (among sites) and temporal (years and seasons) scale distribution. A total of 396 individuals of P. punctata and 64 of P. mediterranea were captured. The abundance of both species was higher in the second sampling year (July 2013-June 2014) and in coastal areas; only one individual of each species was captured in the estuarine area due to the low salinity at this location (approximately 27.7‰). The temperature was the environmental variable that most affected the distribution of both species, which was more abundant in warmer periods. The temporal variation in abundance was modulated by temperature, while salinity modulated the spatial distribution of P. punctata and P. mediterranea. The spatial-temporal distribution of both species differered in Cananéia, pointing to a similar use of the environment's resources. Distribuição espacial e temporal e abundância de duas espécies do gêneroPersephona (Decapoda: Brachyura: Leucosiidae) no litoral sul do estado de São Paulo, Brasil Resumo: Os caranguejos Persephona são intensamente capturados na pesca do camarão como fauna acompanhante, inclusive na região de Cananéia no litoral do estado de São Paulo, no Brasil. A avaliação da distribuição espaço-temporal pode, consequentemente, fornecer informações sobre variações na abundância de Persephona punctata e Persephona mediterranea, bem como as variáveis ambientais que afetam suas distribuições e uma possível partilha de habitat desses congêneres. Com um barco de pesca de camarão equipado com redes de arrasto duplo, os indivíduos foram coletados mensalmente de julho de 2012 a junho de 2014 em sete locais: quatro na área costeira adjacente à região de Cananéia e três na área estuarina Mar Pequeno. A abundância dessas espécies foi comparada de acordo com a distribuição espacial (entre sítios) bem como entre anos e estações. Um total de 396 indivíduos de P. punctata e de 64 de P. mediterranea foram capturados. A abundância de ambas as espécies foi maior no segundo ano de coleta (julho de 2013 a junho de 2014). A abundância de ambas as espécies foi maior na área c...

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“…They present a large variety of strategies and feeding types, occupying different levels of the marine food web (Fauchald and Jumars 1979), a significant contribution to the secondary production of benthic environments, and serve as important food source for many demersal fishes and invertebrates (Amaral et al 1994;Petti et al 1996). Some species of polychaetes can rapidly colonize stressed environments by either natural or anthropogenic factors; their short life cycle, high fertility and reduced body size allow them to occupy new habitats (Ugland et al 2008;Dauvin and Ruellet 2009), constituting important health indicators of marine and estuarine areas.…”

Section: Introductionmentioning

confidence: 99%

Soft-bottom polychaetes from the Brazilian harbors of Mucuripe and Pecém (state of Ceará) and Santos (state of São Paulo)

Buruaem¹,

Petti²,

Abessa³

2015

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Abstract:The analysis of polychaete fauna from 20 softbottom samples collected in different shallow sectors of Mucuripe, Pecém and Santos harbors provided a list of 34 different taxa, totaling 366 individuals. A comparison with recent published data revealed the first occurrence of two polychaete genera and 10 species in Ceará state. Distribution by station, depth and type of sediment was also provided. Despite the considerable knowledge of polychaete fauna from the coast of Brazil especially in the southeastern region, little attention has been given to the harbor areas, which are under influence of anthropogenic impacts. This study represents an important inventory of polychaete fauna found in three harbors from the northeastern (Mucuripe and Pecém, State of Ceará) and southeastern (Santos, state of São Paulo) regions of Brazilian coast.

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Trophic relationships between polychaetes and brachyuran crabs on the southeastern Brazilian coast

Cited by 20 publications

References 8 publications

Structure and dynamics of the macrobenthic communities of Ubatuba Bay, southeastern Brazilian Coast

Structure and dynamics of the macrobenthic communities of Ubatuba Bay, southeastern Brazilian Coast

Spatial and temporal distribution and abundance of two species of Persephona (Decapoda: Brachyura: Leucosiidae) on the southern coast of the state of São Paulo, Brazil

Soft-bottom polychaetes from the Brazilian harbors of Mucuripe and Pecém (state of Ceará) and Santos (state of São Paulo)

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