Brachyuran soft-bottom assemblage from marine shallow waters in the southeastern Brazilian littoral

Bertini, Giovana; Fransozo, Adílson; Negreiros-Fransozo, Maria Lúcia

doi:10.1007/s12526-010-0049-9

Cited by 35 publications

(42 citation statements)

References 31 publications

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“…The crab richness recorded for this region is the highest reported for this kind of habitat on the Brazilian coast, and comprises almost 20% of the total of species recorded from the entire Argentinean Biogeographical Province (see Boschi 2000a). Some studies have demonstrated the significant diversity of brachyuran crabs associated with unconsolidated bottoms on the southeastern Brazilian coast Braga et al 2005;Bertini et al 2010). Despite these available data, the ecology of brachyuran crabs of this region remains little explored, reinforcing the urgency of increasing the research effort to monitor this fauna on the Brazilian coast.…”

Section: Mithrax Tortugae Rathbun 1920mentioning

confidence: 99%

Checklist of the brachyuran crabs (Crustacea: Decapoda) in the rocky subtidal of Vitória Archipelago, southeast coast of Brazil

Alves¹,

Barros-Alves²,

Cobo³

et al. 2012

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Biodiversity can be useful as an ecosystem indicator for conservation and monitoring, through continuous assessment of its main properties including stability, primary productivity, exploitation tolerance and even global environmental changes. The main purpose of this study was to provide a checklist of the crabs associated with subtidal rocky bottoms at the Vitoria Archipelago, southeastern Brazilian coast. Monthly collections were carried out from February 2004 through January 2006 on three islands at the Vitória Archipelago (23°44’S-45°01’W). The crabs were hand-caught by SCUBA divers during the daytime, in rock subtidal. A total of 3084 individuals were caught, belonging to 42 species, 28 genera, and 12 families, highlighting Mithraculus forceps (1528) and Stenorhynchus seticornis (407) representing more than 60% of the sample. On the other hand, Dromia erythropus, Moreiradromia antilensis, Ebalia stimpsoni, Garthiope spinipes and Tumidotheres maculatus had only one individual sampled.

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Section: Mithrax Tortugae Rathbun 1920mentioning

confidence: 99%

Checklist of the brachyuran crabs (Crustacea: Decapoda) in the rocky subtidal of Vitória Archipelago, southeast coast of Brazil

Alves¹,

Barros-Alves²,

Cobo³

et al. 2012

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“…On the northern coast of São Paulo, this group is very abundant and presents one of the highest values in species richness, when compared to other brachyurans (Braga et al, 2005;Bertini et al, 2010a). Furthermore, many species of portunoids have a strong fishing potential and high commercial value, constituting an important food resource in most coastal cities.…”

Section: Introductionmentioning

confidence: 99%

“…Due to SACW influence and other peculiarities of the southeastern Brazilian coast, this locality has been the target of many community studies involving species richness, abundance and diversity of decapod crustaceans, in order to better understand the dynamics of the region's biodiversity (Fransozo et al, 2012;Bertini et al, 2010a;De Léo and Pires-Vanin, 2006;Alves et al, 2013;Furlan et al, 2013;Andrade et al, 2015a). Despite the large number of studies involving the decapod crustacean community on the north coast of São Paulo, studies at more specific ecological levels, such as populations, are necessary to understand the interactions that determine the biotic dynamics in these environments (Mantelatto et al, 1995;Braga et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Population structure of the swimming crab Achelous spinicarpus (Crustacea, Portunoidea) in São Paulo northern coast, Brazil

Silva

Taddei

Bertini

et al. 2017

Neotropical Biology and Conservation

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The swimming crab Achelous spinicarpus is commonly captured as a "by catch" of the shrimp fishery. This study evaluated some aspects of the population structure of A. spinicarpus, such as sex-ratio and size classes' frequency distribution. A shrimp trawler equipped with double-rig nets was used to capture the swimming crabs at Ubatuba and Caraguatatuba areas, northern coast of São Paulo state, Brazil. A total of 1,057 individuals were collected in Ubatuba, including 598 males (525 juveniles and 73 adults) and 459 females (379 juveniles and 80 adults, including 15 ovigerous crabs). In Caraguatatuba 5,112 individuals were collected, of which 3,138 males (2,638 juveniles and 500 adults) and 1,974 females (1,746 juveniles and 228 adults, including 29 ovigerous crabs). The sex-ratio favors the number of males in both regions, probably because females have the habit of occupying deeper regions. The size classes' frequency distribution shows polymodality for both sexes, except for males in Ubatuba. This is the result of some age groups among the juveniles, which migrate to shallower areas, being affected by the fishing activity. Adults have the habit of staying in deeper areas characterized by colder waters.Keywords: Brachyura, sex-ratio, Decapoda, bycatch, size distribution. ResumoO siri candeia, Achelous spinicarpus, é comumente capturado como "by catch" da pesca camaroeira. Este estudo avaliou alguns aspectos de sua estrutura populacional, como razão sexual e distribuição de frequência em classes de tamanho. Para coletar os siris, foi utilizado um barco de pesca camaroeiro equipado com redes "double rig" nas áreas de Ubatuba e Caraguatatuba, litoral norte do estado de São Paulo, Brasil. Um total de 1.057 indivíduos foi coletado em Ubatuba, incluindo 598 machos (525 juvenis e 73 adultos) e 459 fêmeas (379 juvenis e 80 adultas, incluindo 15 ovígeras). Em Caraguatatuba, 5.112 indivíduos foram coletados, dos quais 3.138 machos (2.638 juvenis e 500 adultos) e 1.974 fêmeas (1.746 juvenis e 228 adultas, incluindo 29 ovígeras). A razão sexual favoreceu o número de machos em ambas as áreas, provavelmente devido ao hábito de as fêmeas ocuparem regiões mais profundas. A distribuição de frequência em classes de tamanho apresentou polimodalidade para ambos os sexos, exceto para machos em Ubatuba. Isso é resultado de alguns grupos etários entre os juvenis, os quais migram para áreas mais rasas, sendo afetados pela atividade pesqueira. Os adultos permanecem em áreas mais profundas, caracterizadas por águas frias. Population structure of the swimming crab Achelous spinicarpus (Crustacea, Portunoidea) in São Paulo northern coast, Brazil Palavras

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“…Along the southeastern coast of Brazil, it is the most abundant crab species and plays an important ecological role in the fauna of marine unconsolidated substrates. Hepatus pudibundus is not commercially marketed, but dominates the crustacean bycatch in Ubatuba (Bertini et al 2010a). It is subject to the same impacts that affect commercially important crustaceans harvested by the non-selective trawl fishery.…”

Section: Introductionmentioning

confidence: 99%

“…Important components of reproductive biology, the beginning, duration and end of the breeding cycle and its seasonality are often analyzed (e.g., Haefner 1978;Choy 1988;Yau 1992;Costa & Fransozo 2004;Castilho et al 2008a, b;Bertini et al 2010a).…”

Section: Introductionmentioning

confidence: 99%

Reproductive biology of Hepatus pudibundus (Crustacea: Brachyura), the most abundant crab on the southeastern Brazilian coast

et al. 2013

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This study analyzed the size at sexual maturity and reproductive period of populations of Hepatus pudibundus in three bays on the northern coast of São Paulo, Brazil. Crabs were collected monthly and the bottom-water temperature was measured at each collection point. The animals were sexed, measured for carapace width (CW), and their gonadal stages were determined. A total of 8,674 specimens were collected (2,435 males and 6,239 females). Adult males showed the highest mean CW; the size at maturity for both sexes was 32.5 mm CW. Reproduction was continuous and peaked in spring and summer, because of the greater availability of plankton food for the larvae. This pattern is typical in tropical and subtropical regions, unlike the seasonal reproduction found in temperate regions. Reproductive activity of females was not significantly correlated with bottom-water temperatures. Immatures and individuals in all stages of gonadal development were found throughout the sampling period and at all depths, probably because the species completes its entire reproductive cycle in that area.

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Brachyuran soft-bottom assemblage from marine shallow waters in the southeastern Brazilian littoral

Cited by 35 publications

References 31 publications

Checklist of the brachyuran crabs (Crustacea: Decapoda) in the rocky subtidal of Vitória Archipelago, southeast coast of Brazil

Checklist of the brachyuran crabs (Crustacea: Decapoda) in the rocky subtidal of Vitória Archipelago, southeast coast of Brazil

Population structure of the swimming crab Achelous spinicarpus (Crustacea, Portunoidea) in São Paulo northern coast, Brazil

Reproductive biology of Hepatus pudibundus (Crustacea: Brachyura), the most abundant crab on the southeastern Brazilian coast

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