Records of brachyuran crabs as by-catch from the coastal shrimp fishery in northern Rio de Janeiro State, Brazil

Beneditto, Ana Paula Madeira Di; Souza, Giovana Vignoli Campos De; Tudesco, Caroline Cabral; Klôh, Aline dos Santos

doi:10.1017/s1755267210000679

Cited by 6 publications

(6 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Di Beneditto et al (2010) recorded eight crab species from shrimp fishing in the study area, with C. ornatus being the most representative species, totaling 82% of the bycatch crabs. Locally, the specimens of C. ornatus can be used as bait in Balistidae (triggerfishes) fishing and, despite its low commercial value, around R$ 1.50 per kg (or U$ 0.85), it is not discarded as other bycatch species are.…”

Section: Discussionmentioning

confidence: 99%

“…Graça-Lopes et al 2002, SeverinoRodrigues et al 2002, Branco & Fracasso 2004. In northern Rio de Janeiro State, southeastern Brazil, the species C. ornatus is the commonest bycatch in this fishery (Costa & Di Beneditto 2009, Di Beneditto et al 2010, but data about its population structure are nonexistent to this region. region, and the seasons can be grouped into dry (April-September) and rainy (October-March), which are characterized by lowest and highest values of temperature and rainfall, respectively (Martins et al 1998).…”

Section: Introductionmentioning

confidence: 99%

“…The water temperature in adjacent marine coastal areas is around 22-26 °C throughout the year and the coastal sediment is sandy-muddy, reflecting the river influence (Muehe & Valentini 1998). These characteristics favor the shrimp fishing practice (Fernandes et al 2011) and the occurrence of many species, both estuarine and marine, which include C. ornatus (Di Beneditto & Lima 2003, Di Beneditto et. al.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Population structure of the crab Callinectes ornatus Ordway, 1863 (Brachyura: Portunidae) bycatch in shrimp fishery in northern Rio de Janeiro state, Brazil

2012

Self Cite

View full text Add to dashboard Cite

This study provides the first data on the population structure of swimming crab Callinectes ornatus Ordway, 1863 bycatch from coastal shrimp fishing in northern Rio de Janeiro State, Brazil (21º 30'-21º 50' S and 41º 05'-41º 07' W). Crabs were collected monthly from April 2006 to March 2007. A total of 5,611 specimens were analyzed, of which 3,951 were males and 1,660 ovigerous and non-ovigerous females. The overall sex ratio (2:1) differ significantly from the expected 1:1 proportion, being the mature males significantly predominant as bycatch in this fishery. The specimens' carapace width and weight varied from 27 to 126 mm (mean: 77.3 ± 12.3 mm) and 1.2 to 128.2 g (mean: 31.0 ± 14.4 g) for males, and 30 to 101 mm (mean: 63.4 ± 9.3 mm) and 1.7 to 66.0 g (mean: 16.4 ± 7.4 g) for ovigerous and non-ovigerous females. Seasonal comparisons did not reveal differences between the number of specimens captured in dry and rainy periods considering both sexes and maturity stages. The size at first maturity was 79 mm for males and 65 mm for females, and the carapace width-weight relationship indicated an alometric pattern for both sexes. The bycatch swimming crabs are locally used as bait, but the capture tendency for a specific sex/age-group can affect this population structure over time.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Population structure of the crab Callinectes ornatus Ordway, 1863 (Brachyura: Portunidae) bycatch in shrimp fishery in northern Rio de Janeiro state, Brazil

2012

Self Cite

View full text Add to dashboard Cite

show abstract

“…Shrimps ( Xiphopenaeus kroyeri ) and crabs ( Callinectes sp.) are considered to be as abundant as squids on the northern coast off Rio de Janeiro (Di Beneditto et al ., 2010; Santos & Menegon, 2010; Fernandes et al ., 2014). Thus, the local abundance of prey is high to consumers.…”

Section: Discussionmentioning

confidence: 99%

The trophic ecology of marine catfishes in south-eastern Brazil

et al. 2020

View full text Add to dashboard Cite

The stable isotope ratios of carbon (δ13C) and nitrogen (δ15N) and total mercury concentrations (THg) of the three marine catfish species Aspistor luniscutis, Bagre bagre and Genidens genidens were evaluated to understand their trophic relationship in northern Rio de Janeiro state, south-eastern Brazil. The δ13C was similar among the three marine catfishes, whereas δ15N was similar in A. luniscutis and B. bagre and lower in G. genidens. THg was higher in G. genidens and lower in B. bagre. The greater assimilation of Sciaenidae fishes and squids by A. luniscutis and B. bagre resulted in smaller isotopic niche areas and trophic diversity but higher isotopic niche overlap, trophic redundancy and evenness. For G. genidens, the similar assimilation of all prey items resulted in the broadest isotopic niche among the marine catfishes. The higher mercury content in G. genidens is consistent with an increased important contribution of prey with a higher Hg burden. The bioaccumulation process was indicated by significant correlations of δ15N and THg with total length and total mass. Additionally, a significant correlation between THg and δ15N reflected the biomagnification process through the food web.

show abstract

“…This species is known as the speckled swimming crab and is commercially important in northeastern Brazil, due to its widespread consumption as a food resource (Fransozo et al 1992;Pinheiro et al 1996). Additionally, this species undergoes constant ecological degradation, because it is captured as bycatch fauna in the Brazilian artisanal seabob shrimp fishery (Di Beneditto et al 2010;Grabowski et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Temporal and bathymetric distribution of juveniles and adults of the speckled swimming crab Arenaeus cribrarius from coastal waters of southern Brazil

et al. 2017

View full text Add to dashboard Cite

This study evaluated the temporal and bathymetric distribution of the speckled swimming crab Arenaeus cribrarius from coastal waters of southern Brazil. Monthly samples were taken at five distinct depths throughout one year in the adjacent area from Babitonga Bay, Southern Brazil. Data on environmental conditions (temperature, salinity, granulometry and organic matter) were collected and their association was tested using Multiple Linear Regression and Principal Component Analysis. Juveniles and adults showed different distribution patterns according to depth, with juveniles being more abundant in the shallower areas. The increase in temperature favors the juvenile distribution, while the distribution of adults was related to finer sediments. The pattern of distribution observed for adults might be associated with burrowing habits, or with the search for colder (and consequently deeper) waters, which are richer in nutrients. The high abundance of juveniles in shallower areas might be influenced by the Coastal Water mass that provides higher water temperatures in the summer, and by the Babitonga Bay estuarine complex, which can be an important source of organic matter. We conclude that this region represents a nursery ground for the studied species and is essential to preserve Babitonga Bay in order to maintain A. cribrarius in this region, since this area has suffered from anthropic impacts.

show abstract

Records of brachyuran crabs as by-catch from the coastal shrimp fishery in northern Rio de Janeiro State, Brazil

Cited by 6 publications

References 10 publications

Population structure of the crab Callinectes ornatus Ordway, 1863 (Brachyura: Portunidae) bycatch in shrimp fishery in northern Rio de Janeiro state, Brazil

Population structure of the crab Callinectes ornatus Ordway, 1863 (Brachyura: Portunidae) bycatch in shrimp fishery in northern Rio de Janeiro state, Brazil

The trophic ecology of marine catfishes in south-eastern Brazil

Temporal and bathymetric distribution of juveniles and adults of the speckled swimming crab Arenaeus cribrarius from coastal waters of southern Brazil

Contact Info

Product

Resources

About