Anomura
Mostrando 13-24 de 97 artigos, teses e dissertações.
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13. Allometry and sexual dimorphism of the Neotropical freshwater anomuran Aegla marginata Bond-Buckup & Buckup, 1994 (Crustacea, Anomura, Aeglidae)
Abstract This study analyzes ontogenetic allometry in Aegla marginata Bond-Buckup & Buckup, 1994, a freshwater crustacean, in order to evaluate the growth pattern and the presence of sexual dimorphism, using a multivariate approach. The specimens were sampled from streams in Intervales State Park, São Paulo State, Brazil. For each specimen, we measured the
Nauplius. Publicado em: 05/06/2017
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14. Diversity and conservation status of Aegla spp. (Anomura, Aeglidae): an update
Abstract The speciose genus Aegla Leach, 1820 is the only valid extant genus of the anomuran family Aeglidae, bearing 83 known species. This diversity may be even greater since there is some evidence for cryptic speciation. The genus is endemic to southern South America, occurring in freshwater habitats. We assessed the conservation status of 82 species of A
Nauplius. Publicado em: 27/04/2017
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15. Predatory behavior of the paguroid Dardanus venosus (H. Milne-Edwards, 1848) (Anomura: Diogenidae) on the snail Aurantilaria aurantiaca (Lamarck, 1816) (Gastropoda: Fasciolariidae)
Abstract Paguroids are usually detritivorous organisms and the occurrence of predation on mollusks is very unusual. This contribution reports the occurrence of a predatory behavior of the paguroid Dardanus venosus (H. Milne Edwards, 1848) on the snail Aurantilaria aurantiaca (Lamarck, 1816). Single specimen of paguroid was found attacking the snail in a sea
Nauplius. Publicado em: 02/03/2017
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16. New primers for amplification of cytochrome c oxidase subunit I barcode region designed for species of Decapoda (Crustacea)
Abstract We designed 14 new primers for amplification of the COI barcode region of decapod crustacean species. We tested, with high level of success, the generation of ~ 640 ± 49 base-pair sequences in selected groups of decapods (hermit crabs, squat lobsters, marine and freshwater crabs and shrimps), encompassing representatives of 27 genera of 15 families
Nauplius. Publicado em: 12/12/2016
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17. First record of Petrolisthes virgatus Paul'son, 1875 (Crustacea, Decapoda, Anomura, Porcellanidae) from the Persian Gulf and Gulf of Oman, Iran
Abstract Recent marine expeditions to the Abu-Musa Island (in the Persian Gulf) and Gulf of Oman yielded a first record of the porcelain crab Petrolisthes virgatus Paul'son, 1875, that had not been recorded from these water bodies. In both localities, specimens have been collected from rock crevices in the rocky-cobble shores of the low intertidal zone. Reco
Nauplius. Publicado em: 08/12/2016
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18. Enosteoides Johnson, 1970 (Crustacea: Decapoda: Anomura: Porcellanidae) from the Central Philippines, with description of a new species of the genus
Abstract Three species of the porcellanid genus Enosteoides Johnson, 1970, including a new species, are reported from the Central Philippines on the basis of material mainly collected by the PANGLAO Marine Biodiversity Project 2004. Enosteoides lobatus Osawa, 2009 and E. palauensis (Nakasone and Miyake, 1968) are new to the Philippine crustacean fauna. Enost
Nauplius. Publicado em: 22/09/2016
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19. Allometric growth, sexual maturity and reproductive cycle of Aegla castro (Decapoda: Anomura: Aeglidae) from Itatinga, state of São Paulo, southeastern Brazil
Abstract Allometric growth of chelae dimensions was analyzed to assess the average size at the onset of morphometric maturity (ASOMM) and sexual dimorphism regarding the pair of chelae in the Aegla castro. Both adult males and females are heterochelous with the most robust chela occurring predominantly on the left side. Both chelae are larger in males than t
Nauplius. Publicado em: 09/09/2016
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20. Hábitat y historia de vida de Pachychelles laevidactylus (Crustacea, Anomura, Porcellanidae) en el intermareal rocoso de Mar del Plata, Argentina
Abstract Habitat structure, relative growth, the heterochely, population structure, morphometric maturity and fecundity of Pachycheles laevidactylus Ortmann, 1892 were analyzed during April, May and June 2005, in natural substrates of Mar del Plata, Argentina (38°02'S, 57°31'W). Algal cover, wave exposure and immersion time varied significantly between str
Iheringia, Sér. Zool.. Publicado em: 05/09/2016
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21. Growth, sexual maturity and sexual dimorphism of Aegla georginae (Decapoda: Anomura: Aeglidae) in a tributary of the Ibicuí River in southern Brazil
ABSTRACT This study aimed to estimate the growth and size at the onset of sexual maturity in a population of Aegla georginae . Specimens were sampled from November 2007 to October 2008 in the Perau Creek (Ibicuí-Mirim sub-basin; Uruguay River basin). All captured specimens were sexed, and their cephalothoracic length (CL), minor and larger propodi length (M
Zoologia (Curitiba). Publicado em: 14/07/2016
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22. Habitat heterogeneity in the assemblages and shell use by the most abundant hermit crabs (Anomura: Diogenidae and Paguridae): does the occupied shell species differ according to gender and species?
Abstract The goal of this study was to identify patterns of shell occupation by different species of hermit crabs from the southern Brazilian coast. In total, 644 individuals were collected, represented by six hermit species. Isocheles sawayai Forest & Saint Laurent, 1968 showed the highest abundance, with 575 individuals, followed by Loxopagurus loxochelis
Nauplius. Publicado em: 31/05/2016
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23. Método de captura e estrutura populacional de Aegla georginae Santos and Jara, 2013 (Decapoda: Anomura: Aeglidae) em um afluente do rio Ibicuí no sul do Brasil
Resumo No presente estudo, nós investigamos aspectos populacionais de Aegla georginae na Bacia do rio Ibicuí e consideramos a implicação de diferentes métodos de captura na análise dos dados de dinâmica populacional. Foram amostrados 1774 indivíduos: 1259 machos (21 e 97 juvenis e 1028 e 113 adultos em armadilhas e rede de mão, respectivamente), e 5
Braz. J. Biol.. Publicado em: 06/05/2016
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24. Ocupação de conchas pelo ermitão Dardanus insignis na costa norte do estado de São Paulo, Brasil
Resumo O padrão de ocupação de conchas pelo ermitão D. insignis (Saussure, 1858) na região subtropical da costa sudeste do Brasil, foi investigada no presente estudo. Foram analisadas a percentual de tipos de conchas que foram ocupados e as relações morfométricas entre os ermitões e conchas ocupadas, a partir de coletas mensais realizadas durante do
Braz. J. Biol.. Publicado em: 27/11/2015