Density and extractive potential of “uçá”-crab, Ucides cordatus (Linnaeus, 1763), in mangroves of the “Todos os Santos” Bay, Bahia, Brazil

Mota, T.; Pinheiro, Marcelo Antônio Amaro; Evangelista-Barreto, Norma Suely; Rocha, Sérgio Schwarz da

doi:10.1016/j.fishres.2023.106733

Cited by 4 publications

(3 citation statements)

References 36 publications

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“…2b). The two species, U. cordatus and U. occidentalis, are commercially and culturally important and a key part of the diet for coastal communities in the region 32,33 , with densities driven by factors such as tidal influence, mangrove condition and fishing pressure operating at a range of spatial scales 34,35 . By contrast, across the Indo-Pacific, crab density (species Scylla serrata and Neosarmatium africanum) appears to be highly heterogeneous and lower than in the Americas.…”

Section: Regional Patterns Of Mangrove Fish and Invertebrate Densitymentioning

confidence: 99%

“…Among the modelled species, crab abundance is high across the mangrove coasts of the Americas, underpinned by the high-densities of U. cordatus and U. occidentalis. Multiple studies have highlighted the socio-economic importance of crab and bivalve fisheries for local use across Central and South America 35,46,47 . In the western Indian Ocean, total abundance is dominated by two crab species (S. serrata and N. africanum) (56.4%) This includes one crab species, N. africanum, that is restricted to this region and has the highest modelled density of any species in our models.…”

Section: Regional Patterns Of Mangrove Fish and Invertebrate Densitymentioning

confidence: 99%

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The global fish and invertebrate abundance value of mangroves

Ermgassen,

Worthington,

Gair

et al. 2024

Preprint

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Mangroves are a critical coastal habitat that provides a suite of ecosystem services and support livelihoods. We undertake the first global analysis to estimate density and abundance of 37 commercially important fish and invertebrates that are known to extensively use mangroves. Geomorphic mangrove type, sea surface salinity and temperature, and length of mangrove forest edge were important in predicting the density of commercial fish and invertebrates, with deltaic systems supporting the highest densities. The model predicted high densities throughout parts of southeast Asia, the northern coast of South America, the Red Sea, and the Caribbean and Central America. Application of our model onto the global mangrove extent, estimates that mangroves supports the annual abundance of nearly 800 billion young-of-year fish and invertebrates contained in our model. Our results confirm the critical role of mangroves globally in supporting fish and fisheries, and further builds the case for their conservation and restoration.

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Section: Regional Patterns Of Mangrove Fish and Invertebrate Densitymentioning

confidence: 99%

Section: Regional Patterns Of Mangrove Fish and Invertebrate Densitymentioning

confidence: 99%

The global fish and invertebrate abundance value of mangroves

Ermgassen,

Worthington,

Gair

et al. 2024

Preprint

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“…Copper can be found in association with different fractions, depending on geochemical conditions and the factors that control its speciation processes under conditions of higher or lower availability to the biota (Otero et al, 2000a;Chakraborty et al, 2015). Among the shellfish species extracted in the BTS, the crab Ucides cordatus is one of the main crustaceans exploited in this region (Soares et al, 2009;Mota et al, 2023) and one of the most consumed throughout the country (Pinheiro et al, 2016). It is considered a bioindicator of pollution in mangroves, as it bioaccumulates both organic pollutants and trace elements in its tissues (Nudi et al, 2007;Almeida et al, 2014;Silva et al, 2018;Ramos and Leite, 2022).…”

Section: Introductionmentioning

confidence: 99%

Impact of Seasonality on Copper Bioavailaility to Crabs (Ucides cordatus, Linnaeus, 1763) in Mangrove Soils of Todos os Santos Bay (Bahia, North Eastern Brazil)

Ramos,

Nóbrega,

Ferreira

et al. 2023

Span. J. Soil Sci.

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Crab and soil samples were seasonally collected at four mangrove sites (Cacha Prego, CP; Ponta Grossa, PG; Ilha de Maré, IM; and Pitinga, PT) in Todos os Santos Bay, in NE Brazil. Total Cu levels in soils ranged from 2.5 to 89.4 mg kg−1, while in crab organs (muscles, hepatopancreas, and gills), Cu ranged from 20 to 1,320 mg kg−1, with the highest concentrations found in the Ilha de Maré population, where soils showed a clear Cu enrichment. Total Cu content did not explain the abnormally high Cu concentrations observed in crabs from Pitinga, where total content in soil was low. Geochemical partitioning indicated that most of the potentially bioavailable Cu was found in the oxidizable fractions, pyrite and organic matter. Pyrite oxidation during the dry season led to increased Cu bioavailability. This process was of relevance in soils of the Pitinga mangrove, where sulfide oxidation led to soil acidification and to an increase in Cu associated with the most labile fractions.

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Soil Contamination and Biomarkers in Ucides cordatus in Mangroves from Baía de Todos os Santos, Bahia, Brazil

Ramos,

da Rocha,

Winkaler

et al. 2024

Water Air Soil Pollut

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The aim of the present study was to analyze the response to exposure to pollutants (trace elements and organic pollutants) using biomarkers (micronucleated cells and glutathione S-transferase and catalase activity) in uçá crab Ucides cordatus. The study was carried out at four sites: Cacha Prego (CP) and Ponta Grossa (PG), areas with low anthropic activity; and Ilha de Maré (IM) and Pitinga (PT), areas affected by industrial activity. At each site, soil and crab samples were collected to analyze the contents of potentially toxic elements (total concentration and chemical partitioning of trace elements), polycyclic aromatic hydrocarbons (PAHs), and polychlorinated biphenyls (PCBs). Both total concentrations and geochemical fractions of Cu, Zn, and Ni in soils were significantly higher in IM. Likewise, higher reactive Pb contents were observed in mangroves both in IM and in PG. Values above quality limits were observed for organic pollutants (PAHs) in soils from CP and PT, while PCB contents were below the maximum permissible levels. Metals in crabs also showed spatial variations, with higher Cu concentrations in all tissues in IM and PT and higher Ni concentrations in hepatopancreas in PT during the dry season. PAH values in crabs did not show spatial variations; however, crustaceans with contents above maximum limits in their muscle tissue were found in CP. Crabs from the Baia de Todos Santos showed different responses in biomarker expression, with higher enzymatic activity and greater numbers of micronucleated cells in crabs from IM, suggesting oxidative stress and genotoxicity in this mangrove forest.

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Density and extractive potential of “uçá”-crab, Ucides cordatus (Linnaeus, 1763), in mangroves of the “Todos os Santos” Bay, Bahia, Brazil

Cited by 4 publications

References 36 publications

The global fish and invertebrate abundance value of mangroves

The global fish and invertebrate abundance value of mangroves

Impact of Seasonality on Copper Bioavailaility to Crabs (Ucides cordatus, Linnaeus, 1763) in Mangrove Soils of Todos os Santos Bay (Bahia, North Eastern Brazil)

Soil Contamination and Biomarkers in Ucides cordatus in Mangroves from Baía de Todos os Santos, Bahia, Brazil

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