Physiological responses of pirarucu (Arapaima gigas) to acute handling stress
نویسندگان
چکیده
منابع مشابه
Bulked segregant analysis of the pirarucu (Arapaima gigas) genome for identification of sex-specific molecular markers.
Arapaima gigas (Osteoglossidae) is one of the largest fish species in the Amazon Basin, attaining lengths of over 2.5 m and weights of over 100 kg. Its flesh is prized, and it has great potential for production in aquaculture systems. However, live pirarucu cannot be reliably sexed visually, even after sexual development, since this species does not have clear external sexual dimorphism. Simple...
متن کاملSeasonality Influence on Biochemical and Hematological Indicators of Stress and Growth of Pirarucu (Arapaima gigas), an Amazonian Air-Breathing Fish
Environmental factors such as seasonal cycles are the main chronic stress cause in fish increasing incidence of disease and mortality and affecting productive performance. Arapaima gigas (pirarucu) is an Amazonian air-breathing and largest freshwater fish with scales in the world. The captivity development of pirarucu is expanding since it can fatten up over 1 kg per month reaching 10 kg body m...
متن کاملThe complete mitochondrial genome of the pirarucu (Arapaima gigas, Arapaimidae, Osteoglossiformes)
We sequenced the complete mitochondrial genome of the pirarucu, Arapaima gigas, the largest fish of the Amazon basin, and economically one of the most important species of the region. The total length of the Arapaima gigas mitochondrial genome is 16,433 bp. The mitochondrial genome contains 13 protein-coding genes, two rRNA genes and 22 tRNA genes. Twelve of the thirteen protein-coding genes ar...
متن کاملTissue alterations in the pirarucu, Arapaima gigas, infected by Goezia spinulosa (Nematoda).
Five specimens of Arapaima gigas caught in the Araguaia River (State of Mato Grosso, Brazil) were investigated for helminths in 2004. Numerous adult specimens of the rhapidascarid nematode Goezia spinulosa were found in stomach ulcers in all the specimens of A. gigas and were surrounded by thickening of the mucosa. The gastric glands of all the fish were necrotic and there was a severe and diff...
متن کاملMorphology and expression of genes related to skeletal muscle growth in juveniles of pirarucu (Arapaima gigas, Arapaimatidae, Teleostei)
Skeletal muscle growth in the pirarucu (Arapaima gigas) is highly interesting to fish farmers because it provides information about how the mechanism in muscle mass increase, characteristic of the species, is regulated. Pirarucu has specific muscle growth that highlights the species’s significance and commercial value. Current research evaluates the morphology and the growth-related gene expres...
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ژورنال
عنوان ژورنال: Acta Amazonica
سال: 2007
ISSN: 0044-5967
DOI: 10.1590/s0044-59672007000400019