Crayfish
Mostrando 1-12 de 92 artigos, teses e dissertações.
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1. Assessment of interspecific interactions between the invasive red-claw crayfish (Cherax quadricarinatus) and the Mozambique tilapia (Oreochromis mossambicus)
Resumo O lagostim australiano, Cherax quadricarinatus, tem sido introduzido para fins de aquicultura em todo o mundo e, consequentemente, colonizado ambientes naturais, onde pode coexistir com a biota local sem causar perdas nos serviços dos ecossistemas ou afetar negativamente as espécies nativas e o meio ambiente local. Esta espécie foi encontrada pela
Braz. J. Biol.. Publicado em: 25/11/2019
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2. Prohibiting pet crayfish does not consistently reduce their availability online
Abstract The pet trade is a significant source of introductions of non-indigenous aquatic species, such as crayfish. To test whether legislation that regulates the ownership of ornamental animals for aquariums had the desired effect of reducing the availability of those pets, classified advertising websites were monitored for sales of crayfish in jurisdictio
Nauplius. Publicado em: 01/11/2018
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3. New endemic species of freshwater crayfish Parastacus Huxley, 1879 (Crustacea: Decapoda: Parastacidae) from the Atlantic forest in southern Brazil
Abstract Two new species of Parastacus Huxley, 1879 are described from the Atlantic Forest in southern Brazil: Parastacus buckupi sp. nov. from a highland stream in the hydrographic basin Maquiné river, Maquiné, state of Rio Grande do Sul; and Parastacus pilicarpus sp. nov. from a first order stream in the hydrographic basin Araranguá River, Morro Grande,
Nauplius. Publicado em: 25/06/2018
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4. Growth of the burrowing crayfish Parastacus nicoleti (Philippi, 1882) (Crustacea, Decapoda, Parastacidae)
ABSTRACT: We examined the individual growth of the burrowing crayfish Parastacus nicoleti (Philippi, 1882) based on a sample of 1,425 specimens. Individuals were collected monthly from November 1981 to December 1982, in the marshy wetlands of the “Pangal” homestead in Reumen, southern Chile. The Cephalothorax Length (CL) and Body Weight (BW) were recorde
Nauplius. Publicado em: 04/06/2018
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5. Interactions of season, sex and size on nutrient composition of freshwater crayfish (Astacus leptodactylus Eschscholtz, 1823) from Lake Eğirdir
Abstract Effects of interaction of season, sex and size on nutrient composition and fatty acid profiles of freshwater crayfish (Astacus leptodactylus) caught from the Eğirdir Lake were investigated on a factorial level. In the factorial analysis; 4 levels of season factors (autumn, winter, spring, summer), 2 levels of sex factor (male, female) and 1 level s
Food Sci. Technol. Publicado em: 19/03/2018
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6. A new species of Parastacus Huxley, 1879 (Crustacea, Decapoda, Parastacidae) from a swamp forest in southern Brazil
Abstract In this contribution we describe a new species of burrowing crayfish of the genus Parastacus Huxley, 1879 from a swamp forest in southern Brazil and determine its conservation status. The distinction of the new species is based on morphology and the mitochondrial DNA marker 16S rRNA. The extinction risk was assessed according to the sub-criterion B1
Nauplius. Publicado em: 27/04/2017
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7. Comparative transcriptome and potential antiviral signaling pathways analysis of the gills in the red swamp crayfish, Procambarus clarkii infected with White Spot Syndrome Virus (WSSV)
Abstract Red swamp crayfish is an important model organism for research of the invertebrate innate immunity mechanism. Its excellent disease resistance against bacteria, fungi, and viruses is well-known. However, the antiviral mechanisms of crayfish remain unclear. In this study, we obtained high-quality sequence reads from normal and white spot syndrome vir
Genet. Mol. Biol.. Publicado em: 20/02/2017
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8. Red swamp crayfish: biology, ecology and invasion - an overview
ABSTRACTAlien species have been transported and traded by humans for many centuries. However, with the era of globalization, biological invasions have reached notable magnitudes. Currently, introduction of alien species is one of the major threats to biodiversity and ecosystem functioning. The North American crayfish Procambarus clarkii is one of the most wi
Nauplius. Publicado em: 2015-06
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9. Effects of both ecdysone and the acclimation to low temperature, on growth and metabolic rate of juvenile freshwater crayfish Cherax quadricarinatus (Decapoda, Parastacidae)
Growth, metabolic rate, and energy reserves of Cherax quadricarinatus (von Martens, 1868) juveniles were evaluated in crayfish acclimated for 16 weeks to either 25ºC (temperature near optimum) or 20ºC (marginal for the species). Additionally, the modulating effect of ecdsyone on acclimation was studied. After 12 weeks of exposure, weight gain of both exper
Iheringia, Sér. Zool.. Publicado em: 2013-06
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10. The burrows of Parastacus defossus (Decapoda: Parastacidae), a fossorial freshwater crayfish from southern Brazil
Parastacus defossus Faxon, 1898 is a fossorial crayfish species, which constructs its burrows in swampy areas in southeast Uruguay and in the state of Rio Grande do Sul, Brazil. The present field study was carried out in Lami, Porto Alegre, Rio Grande do Sul, Brazil, from May 2003 through August 2005. Environmental measurements (temperature, pH, dissolved ox
Zoologia (Curitiba). Publicado em: 2010-06
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11. Morfologia externa de Parastacus brasiliensis (Decapoda, Parastacidae) / External morphology of Parastacus brasiliensis (Decapoda, Parastacidae)
Parastacus brasiliensis (von Martens, 1869) é um lagostim de água doce endêmico da região meridional brasileira, ocorrendo nas bacias que formam o estuário do Guaíba, na depressão central do Estado do Rio Grande do Sul. O objetivo deste estudo é descrever e ilustrar a morfologia externa e a distribuição dos diferentes tipos de setas nos apêndices
Publicado em: 2010
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12. Dinâmica do desenvolvimento das gônadas de Parastacus varicosus (Crustacea, Decapoda, Parastacidae) / Dynamics of gonadal development of Parastacus varicosus (Crustacea, Decapoda, Parastacidae)
O desenvolvimento das gônadas de uma espécie pode ser avaliado pela determinação do índice gonadossomático e hepatossomático. O hepatopâncreas é o maior centro de reservas em decápodos e essas reservas podem ser transferidas para as gônadas durante o seu desenvolvimento. O objetivo desta pesquisa foi avaliar, no lagostim Parastacus varicosus Faxon
Publicado em: 2010