Scielo RSS <![CDATA[Nauplius]]> http://www.scielo.br/rss.php?pid=0104-649720190001&lang=es vol. 27 num. lang. es <![CDATA[SciELO Logo]]> http://www.scielo.br/img/en/fbpelogp.gif http://www.scielo.br <![CDATA[Population and reproductive biology of two caprellid species (Crustacea: Amphipoda) associated to <em>Sargassum cymosum</em> (Phaeophyta: Fucales) on the southeast coast of Brazil]]> http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-64972019000100200&lng=es&nrm=iso&tlng=es Abstract Caprellid amphipods are common crustaceans at Sargassum beds of southeastern Brazil and constitute an important link between primary producers and marine consumers. The goal of this study is to evaluate population and reproductive biology of two caprellid species: Paracaprella tenuis Mayer, 1903 and Pseudaeginella montoucheti Quitete, 1971. Sargassum cymosum Agardh, 1820 samples were collected monthly between October 2010 and September 2011 in a rock shore in southeastern Brazil. The caprellids were identified, counted, measured and classified as males, immature females, sexually mature females, ovigerous females and juveniles. Eggs were counted and measured. Higher densities of P. tenuis and P. montoucheti were found mainly in winter and lower densities in fall and summer. Density variation is probably related to organic matter supply and substrate availability. Both species showed continuous reproduction with reproductive peaks. Pseudaeginella montoucheti larger egg volume indicates a longer incubation period. The egg volume was directly related to female size. The number of eggs was weakly related to female size, indicating that fecundity may be driven by other factors, such as the physiological conditions. Sex ratio deviated for males suggests a higher longevity of males. The present study highlighted important data of two caprellids species that occur in algal beds of different regions. <![CDATA[<em>Carcinoplax mistio</em>, a new species of goneplacid crab from the Indian Ocean (Decapoda: Brachyura: Goneplacoidea)]]> http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-64972019000100201&lng=es&nrm=iso&tlng=es Abstract Trawls from the Bay of Bengal obtained material of a new species of the goneplacid crab, Carcinoplax mistio, the sixth species of the genus known from India. The new species superficially resembles C. purpurea Rathbun, 1914, and C. sinica Chen, 1984, from the western Pacific. Records of C. sinica from the Persian Gulf are also here referred to the new species. Carcinoplax mistio n. sp. differs from its closest congeners mainly in the form of the carapace, anterolateral armature, proportions of the ambulatory legs and structure of the male pleon. <![CDATA[New records of the shrimp <em>Periclimenes crinoidalis</em> Chace, 1969 (Decapoda: Palaemonidae) and its crinoid host <em>Nemaster grandis</em> A.H. Clark, 1909 (Echinodermata: Crinoidea) in the Caribbean Sea]]> http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-64972019000100202&lng=es&nrm=iso&tlng=es Abstract During exploratory trips conducted between August and December 2016, six shrimps, found in association with the crinoid Nemaster grandis A.H. Clark, 1909, ere collected in Chichiriviche de la Costa, Vargas State (Venezuela). A photographic record of the crinoids and the shrimps was conducted in situ. Shrimps were preserved in ethyl alcohol 90% and carried to the Laboratorio de Carcinología de la Universidad de Oriente, Núcleo Nueva Esparta. Once in the laboratory, the shrimps were taxonomically described and sexed. Shrimps were identified as Periclimenes crinoidalis Chace, 1969, constituting the first record of this species in Venezuelan waters. These findings also expand the known distribution range for the crinoid N. grandis in Venezuela, where the species exhibits two morphotypes, one of them not previously described. Additionally, a table with the species of decapods found associated with echinoderms in Venezuela is provided. <![CDATA[First record of <em>Oithona attenuata</em> Farran, 1913 (Crustacea: Copepoda) from Brazil]]> http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-64972019000100800&lng=es&nrm=iso&tlng=es Abstract Here, we report the first record of the marine copepod Oithona attenuata Farran, 1913, in Brazil, from a costal station near Cabo Frio Island, Arraial do Cabo Municipality, Rio de Janeiro State. Specimens were found during March and May 2011 in zooplankton samples obtained from horizontal hauls using a plankton-net with a 100μm mesh size, and mouth opening of 40 cm diameter. <![CDATA[First record of the genus <em>Anuropodione</em> Bourdon, 1967 (Crustacea: Isopoda: Bopyridae) from the South Atlantic]]> http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-64972019000100801&lng=es&nrm=iso&tlng=es Abstract The family Bopyridae Rafinesque, 1815 is comprised of parasitic isopods with a life cycle involving an intermediate host (copepod) and a definitive host (decapod crustacean). The genus Anuropodione Bourdon, 1967 occurs in all oceans and encompasses five species that are only known as parasites of squat lobsters belonging to the genus Munida Leach, 1820. Despite the broad distribution of the genus, no species has ever been recorded from the South Atlantic. A total of 416 specimens of Munida iris A. Milne-Edwards, 1880 were collected in Potiguar Basin around the isobaths of 400 m, including 24 individuals (5.77%) containing parasites within their branchial chambers. Male parasites showed considerable variability in the number of pleomeres, with many showing four pleomeres, a number previously unknown for males of any species in the genus. These specimens represent the first occurrence of the genus Anuropodione and the species A. carolinensisMarkham, 1974 from the South Atlantic (Brazilian waters). <![CDATA[Erratum: Monitoring mangrove crab Ucides cordatus Linnaeus, 1763 (Crustacea: Ucididae) landing in the Parnaíba River Delta: fishing characteristics, social and economic aspects]]> http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-64972019000101000&lng=es&nrm=iso&tlng=es Abstract The family Bopyridae Rafinesque, 1815 is comprised of parasitic isopods with a life cycle involving an intermediate host (copepod) and a definitive host (decapod crustacean). The genus Anuropodione Bourdon, 1967 occurs in all oceans and encompasses five species that are only known as parasites of squat lobsters belonging to the genus Munida Leach, 1820. Despite the broad distribution of the genus, no species has ever been recorded from the South Atlantic. A total of 416 specimens of Munida iris A. Milne-Edwards, 1880 were collected in Potiguar Basin around the isobaths of 400 m, including 24 individuals (5.77%) containing parasites within their branchial chambers. Male parasites showed considerable variability in the number of pleomeres, with many showing four pleomeres, a number previously unknown for males of any species in the genus. These specimens represent the first occurrence of the genus Anuropodione and the species A. carolinensisMarkham, 1974 from the South Atlantic (Brazilian waters).