Scientific Note New records of the brachyuran crabs Hepatus pudibundus (Aethridae) and Persephona mediterranea (Leucosiidae) in their southernmost Western Atlantic distribution (original) (raw)
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Cahiers de Biologie Marine
We report herein the euryplacid crab Sotoplax robertsi, previously known only from the type locality (Gulf of Mexico, 28º30'N, 84º58'W), off the east coast of Brazil (states of Bahia and Espírito Santo, 13°54'14"S, 39°00'34"W and 20º44'S, 40º25'W, respectively). This is the first record from the South Atlantic Ocean, and considerably extends the known geographical range of this species. We provide information on the morphology of the male, and the first description of the female.
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.
List of marine crabs (Decapoda: Anomura and Brachyura) of shallow littoral of Santiago de Cuba, Cuba
Check List, 2015
Marine crustaceans constitute one of the best studied groups in the Cuban waters. However, the level of systematic knowledge about them differs among the ecoregions of the platform. This paper presents the systematic list of hermit, porcelain and brachyuran crabs of the coast of Santiago de Cuba, on the southeast platform of Cuba. The records of the species have been compiled between 2009 and 2013, in ten locations, which differ in the type of habitats. Additional material was examined in the collection of the Universidad de Oriente Museum Charles Ramsdem. Eighty-one species are represented (seven hermits, eight porcelains and sixty-six true crabs). Data on their local and global distribution, their habitat, and notes on their reproductive period and fishing use are also provided.
List of marine crabs (Decapoda: Anomura and Brachyura) of shallow littoral of Santiago de Cuba, Cuba
Check List, 2015
Marine crustaceans constitute one of the best studied groups in the Cuban waters. However, the level of systematic knowledge about them differs among the ecoregions of the platform. This paper presents the systematic list of hermit, porcelain and brachyuran crabs of the coast of Santiago de Cuba, on the southeast platform of Cuba. The records of the species have been compiled between 2009 and 2013, in ten locations, which differ in the type of habitats. Additional material was examined in the collection of the Universidad de Oriente Museum Charles Ramsdem. Eighty-one species are represented (seven hermits, eight porcelains and sixty-six true crabs). Data on their local and global distribution, their habitat, and notes on their reproductive period and fishing use are also provided.
Marine Biodiversity Records, 2012
A total of 16 species of intertidal brachyuran crabs were recorded from the three major estuaries (Punta Banda, False Bay-San Quintín and Laguna Manuela) of the west coast of the state of Baja California, Mexico. The species belong to 7 families: Cancridae (3), Grapsidae (2), Ocypodidae (2), Panopeidae (3), Pinnotheridae (4), Portunidae (1) and Varunidae (1). New distributional records include an extension of the northern limits of
Diversity of decapod crabs (Crustacea: Brachyura) in two islands of Ubatuba, southeast of Brazil
Biologia, 2020
This is the first comparative study of the alpha and beta diversity of crabs from soft bottom areas nearby two coastal islands (Couves and Mar Virado Islands). Crabs were captured monthly from January 1998 to December 1999. The samplings were carried out with a shrimp fishery boat provided with double-rig nets within a marine protected area in Ubatuba off the north coast of São Paulo. The ecological indexes of diversity (H′), equitability (J′) and β-diversity were used to compare the variation in diversity between islands and years. In total, we captured 2221 brachyurans (570 in Couves and 1651 in Mar Virado), belonging to 42 species, 28 genera, and 13 families. Twenty species occurred in both islands, ten occurred only in Couves, and 12 were exclusive of Mar Virado. The three most abundant species were Callinectes ornatus, Hexapanopeus paulensis, and Hepatus pudibundus. There were statistical differences in equitability (between islands in the year of 1998) and abundance (among seasons in the autumn of 1999) (p < 0.05). Although the two islands are geographically close to each other, they have distinct environmental features. Couves Island, for instance, is more affected by the water masses reaching Ubatuba than Mar Virado Island. These characteristics are probably driving the community composition of these islands.
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.
Distribution and Abundance of Four Brachyuran Crabs on the Northwest Atlantic Shelf
2000
Seasonal distnbutions and relative abundances of the Atlantic rock crab Cancer irroratus, Jonah crab C. borealis, northern lady crab Ovalipes ocella.tus, and coarsehand lady crab O. stephensoni were determined from :fish trawl and clam dredge surveys on the continental shelf from Nova Scotia to Cape Hatteras, North Carolina during 1978-87.