Crabs
Mostrando 1-12 de 186 artigos, teses e dissertações.
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1. First record of the box crab Cryptosoma balguerii (Desbonne in Desbonne and Schramm, 1867) (Brachyura: Calappidae) from São Paulo, Brazil revealed by DNA markers
Abstract The present study provided information extending the known geographical distribution of the calappid crab Cryptosoma balguerii (Desbonne in Desbonne and Schramm, 1867). We provide new data that extends the range of this species in the western Atlantic farther to the south in the Brazilian region, State of São Paulo and check its identification by m
Nauplius. Publicado em: 02/12/2019
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2. Natural diet of Ocypode quadrata (Fabricius, 1787) (Crustacea, Decapoda, Brachyura) from the Northern Coast of São Paulo, Brazil
Abstract Decapod crustaceans have a wide variety of feeding habits, alternating among herbivory, predation, saprophagy, and filtration. The occupation of various trophic positions in the food web is a key feature in the evolution of the group. Thus, we analyzed the natural diet of the crab Ocypode quadrata (Fabricius, 1787), commonly known as the ghost crab
Pap. Avulsos Zool.. Publicado em: 28/11/2019
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3. Use of osmoregulatory ability to predict invasiveness of the Indo-Pacific swimming crab Charybdis hellerii (A. Milne-Edwards, 1867) an invader in Southern Brazil
Abstract The Indo-Pacific swimming crab Charybdis hellerii (A. Milne-Edwards, 1867) is native to the Indo-Pacific Ocean, and occurs as an invasive species along the Eastern American coast, where it was probably introduced in ballast water. The present study evaluated the osmoregulation and salinity tolerance of C. hellerii in Paranaguá Bay, Paraná, Brazil,
Nauplius. Publicado em: 07/11/2019
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4. First confirmed record of the sesarmid crab, Parasesarma bengalense (Davie, 2003) (Decapoda: Brachyura) in Indian waters
ABSTRACT The mangrove crab, Parasesarma bengalense (Davie, 2003), was previously reported in an ecological study from the Coringa Wildlife Sanctuary of Andhra Pradesh on the east coast of India. No specimen, however, is readily available to confirm the identity of P. bengalense from the Coringa Wildlife Sanctuary. The present study confirms the presence of P
Nauplius. Publicado em: 16/09/2019
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5. New records of two species of parasitic isopods (Isopoda: Cymothoida: Bopyridae: Athelginae) associated with hermit crabs from the south Atlantic
Abstract Two species of bopyrid isopods from the subfamily Athelginae are recorded from new localities in northeastern Brazil. Parathelges foliatus Markham, 1972 was recorded for the first time from Brazil, in the state of Ceará, parasitising the hermit crab Clibanarius symmetricus (Randall, 1840). Pseudostegias atlantica Lemos de Castro, 1965 is recorded f
Pap. Avulsos Zool.. Publicado em: 03/09/2019
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6. Sustainable production with obtaining glucosamine from crab exoskeletons
RESUMO: Dois tratamentos químicos, cinco enzimáticos (pectinase, lipase, hemicelulase, hemicelulose-celulase ou lipase-pectinase) e um microbiológico (Bacillus subtilis) foram avaliados para obter o cloridrato de glucosamina (Gluc-HCl) da quitina obtida a partir de exoesqueletos de caranguejo (Callinectes. Bellicosus). Os dois tratamentos químicos foram
Cienc. Rural. Publicado em: 02/09/2019
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7. Grooming behaviors and fouling of the spider crab Libinia dubia (Decapoda: Epialtidae)
Abstract Body fouling has been reduced by grooming behaviors. In decapods, grooming has been focused on gills, sensory structures, and jointed appendages. In this study, grooming behaviors of the spider crab, Libinia dubia H. Milne-Edwards, 1834, were examined; this brachyuran crab decorates and camouflages body regions by attaching materials onto hooked set
Nauplius. Publicado em: 01/08/2019
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8. Malacoplax californiensis (Lockington, 1877) (Crustacea: Decapoda: Brachyura: Panopeidae) in the Gulf of California, Mexico
Abstract A series of specimens of Malacoplax californiensis (Lockington, 1877) is reported from the Gulf of California, significantly increasing the known localities for the otherwise rarely reported species from 3 to 12. Depth range is increased to 110‒114 m on the continental shelf. Environmental conditions associated with the crabs were: 12.4‒27.0°C;
Nauplius. Publicado em: 06/06/2019
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9. New records of two species of freshwater crabs (Decapoda: Gecarcinucidae) from Kerala, India, with notes on their distribution
Abstract Kerala has the highest known diversity of freshwater crabs among the Indian states, and many more species are likely to be added to the state, especially from the Western Ghats. The present specimens from the Western Ghats of Kerala add two more species records to Kerala: Oziotelphusa wagrakarowensis (Rathbun, 1904) and Vanni nilgiriensis (Roux, 193
Nauplius. Publicado em: 23/05/2019
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10. First report of inventory and role of macroinvertebrates and fish in Cautín river (38° S, Araucania region Chile)
Resumo O rio Cautin está localizado na região de Araucania, no Chile (38°S), é caracterizado por alterações através da interferência humana devido à agricultura e as cidades da bacia circundante, a presença de salmonídeos e pelo seu regime misto, originado pela queda de neve verão e chuvas no inverno. O objetivo do presente estudo foi fazer uma r
Braz. J. Biol.. Publicado em: 02/05/2019
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11. Heart rate responses to different temperatures in juvenile Poppiana dentata ( )
Resumo A temperatura é um dos principais fatores que influenciam o funcionamento cardiovascular dos animais ectotérmicos. Sendo assim, este estudo buscou investigar as respostas de frequência cardíaca de uma espécie de caranguejo de água doce, o Poppiana dentata, após exposição a temperaturas diferentes, visto que esta espécie geralmente reside em
Braz. J. Biol.. Publicado em: 18/04/2019
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12. Extension range of four species of freshwater crabs (Decapoda: Trichodactylidae) in the state of Maranhão, Northeastern Brazil
Abstract The present study provides a list of the freshwater crab species of the family Trichodactylidae recorded from the state of Maranhão, northeastern Brazil, along with information about their distribution. Eight streams were sampled with dip nets, sieves, gill nets, and drag nets. Four species were found: Dilocarcinus septemdentatus (Herbst, 1783), Go
Nauplius. Publicado em: 06/12/2018