Crustacean
Mostrando 1-12 de 132 artigos, teses e dissertações.
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1. Sample Preparation Using TMAH and Nitric Acid for Multielement Determination in Crustacean Samples by MIP OES
This study proposes a simple sample preparation procedure using tetramethylammonium hydroxide (TMAH) and nitric acid (HNO3) to determine Cr, Cu, Fe, K, Mg, Mn, and Zn concentrations in shrimp (Macrobrachium amazonicum) and crab (Ucides cordatus) samples from the Amazon region by microwave-induced plasma optical emission spectrometry (MIP OES). The sample sol
J. Braz. Chem. Soc.. Publicado em: 2021-03
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2. Setogenesis and characterization of the new moult substages in the freshwater shrimp Palaemon argentinus (Nobili, 1901) (Caridea: Palaemonidae)
Abstract The moult cycle of crustaceans is continuous and during different stages of this cycle, physiological, biochemical and morphological changes occur. Therefore, understanding the different stages of the moult cycle in the target species becomes critical for a wide range of biological studies. Here we describe the natural cycle changes in the freshwate
Nauplius. Publicado em: 21/10/2019
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3. Low levels of crustacean parasite infestation in fish species from the Matapi River in the state of Amapá, Brazil
Resumo Este primeiro estudo investigou a fauna parasitária de crustáceos em 66 espécies de peixes da bacia do Rio Matapi, estado do Amapá (Brasil). Os peixes foram coletados bimestralmente no período de março de 2012 a agosto de 2013, nas estações de estiagem e chuvosa. Entre as 66 espécies (correspondendo a 722 espécimes) somente 11 espécies esta
Rev. Bras. Parasitol. Vet.. Publicado em: 06/06/2019
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4. Dolops carvalhoi as a vector of Epistylis sp. between cultivated and wild specimens of Oreochromis niloticus in Brazil
Resumo Epistilíase tem sido caracterizada como uma doença emergente de grande impacto nas pisciculturas, especialmente em sistemas de produção de Oreochromis niloticus. Embora seja importante epidemiologicamente, informações sobre a dispersão desses parasitas e seus vetores mecânicos são escassos. O presente estudo relata a coocorrência de Epistyli
Rev. Bras. Parasitol. Vet.. Publicado em: 30/05/2019
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5. Decapod abundance and species richness in the bycatch of Xiphopenaeus kroyeri (Heller, 1862) fishery, Santa Catarina, southern Brazil
Abstract We aimed to analyze the crustacean bycatch from the Xiphopenaeus kroyeri fishery in the Santa Catarina State and compare the bycatch’s biomass to that of the target species. Shrimp and environmental factors were sampled monthly from July 2010 through June 2011. For each crustacean species, we calculated the number of individuals, the relative abun
Nauplius. Publicado em: 23/05/2019
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6. First record of the genus Anuropodione Bourdon, 1967 (Crustacea: Isopoda: Bopyridae) from the South Atlantic
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, 1
Nauplius. Publicado em: 28/03/2019
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7. Monitoring mangrove crab Ucides cordatus Linnaeus, 1763 (Crustacea: Ucididae) landing in the Parnaíba River Delta: fishing characteristics, social and economic aspects
Abstract The century-old mangrove crab Ucides cordatus Linnaeus, 1763 harvesting is a traditional activity of Northeastern Brazilian coastal communities, who use it as food, source of income and cultural reference. The extractivism and marketing of this crustacean is essential for the socio-economic development of the states of Maranhão, Piauí and Ceará.
Nauplius. Publicado em: 01/11/2018
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8. Ludwig Buckup’s academic life and his contribution to Carcinology
Abstract Ludwig Buckup holds a Bachelor’s degree in Natural History in 1954 from the Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, and a Ph.D. in Zoology from the University of Tübingen, Germany, in 1958. He joined UFRGS as a Professor in 1958, from where he retired in 1990. During this period he was fully devoted to his career of profess
Nauplius. Publicado em: 26/03/2018
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9. Composition and abundance of decapod crustaceans in mixed seagrass meadows in the Paraguaná Peninsula, Venezuela
ABSTRACT Thalassia testudinum and Halodule wrigthii are the dominant seagrasses in the Caribbean, being common across shallow shorelines, either as monospecific or as intermixed meadows. Among the macrofauna associated with these beds, crustaceans are considered essential for the whole ecosystem functioning. However, knowledge about the associated community
Iheringia, Sér. Zool.. Publicado em: 26/03/2018
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10. Production and characterization of a biosurfactant produced by Streptomyces sp. DPUA 1559 isolated from lichens of the Amazon region
Surfactants are amphipathic compounds containing both hydrophilic and hydrophobic groups, capable to lower the surface or interfacial tension. Considering the advantages of the use of biosurfactants produced by microorganisms, the aim of this paper was to develop and characterize a biosurfactant produced by Streptomyces sp. DPUA1559 isolated from lichens of
Braz J Med Biol Res. Publicado em: 11/12/2017
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11. Checklist of fossil decapod crustaceans from tropical America. Part I: Anomura and Brachyura
Abstract Our knowledge of fossil crustaceans from the tropics has increased considerably during recent decades, thanks to novel findings and the re-examination of museum specimens. However, several previous records have been misidentified, numerous museum specimens have never been reported, and many new discoveries are yet to be published. Here, we present a
Nauplius. Publicado em: 19/10/2017
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12. 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