The population biology of the exploited crab<i>Ucides cordatus</i>(Linnaeus, 1763) in a southeastern Atlantic Coast mangrove area, Brazil

Costa, Tarso; Pitombo, Fábio Bettini; Soares-Gomes, Abı́lio

doi:10.1080/07924259.2014.917126

Cited by 13 publications

(2 citation statements)

References 23 publications

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“…El crecimiento individual de Ucides occidentalis es noasintótico, indeterminado, con una curva en forma sigmoidea vertical invertida, con diferencias significativas entre sexos, siendo las hembras las que alcanzan primero el punto de inflexión (Zambrano 2017a, Zambrano et al 2017. Varios trabajos se ha asumido que el crecimiento individual de U. occidentalis y U. cordatus es asintótico y utilizan el modelo de Von Bertalanffy (1938) para representar y comparar entre congéneres asumiendo que, los preceptos del modelo representan las características biológicas de las especies (Cedeño 2014a, Chalén 2004, Costa et al 2014, Diele 2000, Diele & Koch 2010, Pinheiro et al 2005, Poma & Bocanegra 1997, Rivera 2013).…”

Section: Crecimiento Individual De Ucides Occidentalis En El Golfo Deunclassified

Notas sobre taxonomía, biología y pesquería de Ucides occidentalis (Brachyura: Ocypodidae) con énfasis en el Golfo de Guayaquil, Ecuador

Zambrano

Meiners

2018

Rev peru biol

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La información científica sobre Ucides occidentalis es escasa y parte de estos estudios no han logrado una difusión adecuada, lo cual restringe la disponibilidad de conocimiento sobre esta especie comercial. En este trabajo se revisan diversos estudios sobre U. occidentalis y se presenta información obtenida de observaciones directas realizadas entre 2011-2014 en los manglares del Golfo de Guayaquil, Ecuador. Se muestran notas sobre cambios en la taxonomía de U. occidentalis, sus características biológicas, ecológicas y pesqueras. Se discuten características del interés pesquero como la densidad poblacional y períodos de reproducción. Finalmente, se discute el manejo de las pesquerías de U. occidentalis en el Golfo de Guayaquil debido a que, en los últimos años, se ha evidenciado una disminución en los niveles de desembarques y a la vez, un aumento en la talla media comercial; aquello sugiere que se deben considerar ambos factores en la evaluación del stock, para tener una mejor aproximación sobre el estado poblacional del recurso y sus niveles de explotación.

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Section: Crecimiento Individual De Ucides Occidentalis En El Golfo Deunclassified

Notas sobre taxonomía, biología y pesquería de Ucides occidentalis (Brachyura: Ocypodidae) con énfasis en el Golfo de Guayaquil, Ecuador

Zambrano

Meiners

2018

Rev peru biol

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“…U. cordatus feeds mainly on fallen mangrove leaves and has an important role in nutrient cycling (Schories et al 2003;Nordhaus and Wolff 2007). The species is an important bioindicator of metal contamination due to this long (around 17 years) and slow life cycle (sexual maturity at 3 years) and low mobility in adulthood (Pinheiro et al 2012(Pinheiro et al , 2005Costa et al 2014).…”

Section: Introductionmentioning

confidence: 99%

First assessment of trace metal concentration in mangrove crab eggs and other tissues, SE Brazil

Almeida

Kütter

Marques

et al. 2016

Environ Monit Assess

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The mangrove crab Ucides cordatus is widespread in the Brazilian coast, which has an important role in nutrient cycling. This species reproduces in summer and females carry eggs about a month, when they maintain contact with water and sediments. It remains unclear if trace metals can be absorbed or adsorbed by the eggs during development. The present study aims to investigate, for the first time, trace metal concentrations in ovigerous female tissues and eggs of U. cordatus in two areas with different metal pollution levels in the Southeastern Brazil. Samples were collected in two different mangroves, Guanabara Bay (GB) highly polluted environment and Paraíba do Sul River (PSR). In both populations, we observed significant increase of V, Cr, and Mn concentrations along eggs maturation. The higher metals averages were found in PSR population. This trend was reported since the 1990s and lower concentrations in GB marine organisms were attributed to reducing conditions, high organic load, and the presence of sulfide ions. These conditions restrict the bioavailability of metals in the bay, with exception of Mn. No significant differences were observed in gills and muscles. In both populations of the present study, V, Zn, As, and Pb were higher in eggs of initial stage, whereas Mn, Ni, Cu, and Cd were higher in hepatopancreas. Beside this, V, Cr, Mn, As, and Pb showed an increase concerning egg development. Thus, V, As, and Pb in eggs come from two sources previous discussed: females and environment. Zinc came mainly from females due to essential function. Those new information should be considered as one of the mechanisms of trace metal transfer to the trophic chain, between benthonic and pelagic environment.

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Populations and Communities

2021

Tropical Marine Ecology

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The population biology of the exploited crabUcides cordatus(Linnaeus, 1763) in a southeastern Atlantic Coast mangrove area, Brazil

Cited by 13 publications

References 23 publications

Notas sobre taxonomía, biología y pesquería de Ucides occidentalis (Brachyura: Ocypodidae) con énfasis en el Golfo de Guayaquil, Ecuador

Notas sobre taxonomía, biología y pesquería de Ucides occidentalis (Brachyura: Ocypodidae) con énfasis en el Golfo de Guayaquil, Ecuador

First assessment of trace metal concentration in mangrove crab eggs and other tissues, SE Brazil

Populations and Communities

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