2008
DOI: 10.1590/s0073-47212008000300010
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Abstract: ABSTRACT. The goal of this study was to evaluate the effects of seasonal variations on energy metabolism in different tissues of the freshwater crayfish Parastacus brasiliensis (von Martens, 1869). Crayfish were collected monthly from January 2001 to January 2003 in São Francisco de Paula, Rio Grande do Sul, Brazil, in a stream and in a culture tank. Haemolymph samples were collected from each crayfish in the field with a syringe, by puncturing the membrane at the base of the chelipeds. Hepatopancreas, gills, … Show more

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Cited by 17 publications
(10 citation statements)
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References 38 publications
(51 reference statements)
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“…In decapod crustaceans, the maintenance of suitable glucose levels in the hemolymph is essential to support the regular functions of various organs and in responses to environmental stress (Verri et al, 2001;Lorenzon et al, 2005;Dutra et al, 2008). The digestion of glycogenic substrates and absorption of glucose via the hepatopancreas are the main sources of hemolymphatic glucose (Verri et al, 2001;Obi et al, 2011).…”
Section: Introductionmentioning
confidence: 99%
“…In decapod crustaceans, the maintenance of suitable glucose levels in the hemolymph is essential to support the regular functions of various organs and in responses to environmental stress (Verri et al, 2001;Lorenzon et al, 2005;Dutra et al, 2008). The digestion of glycogenic substrates and absorption of glucose via the hepatopancreas are the main sources of hemolymphatic glucose (Verri et al, 2001;Obi et al, 2011).…”
Section: Introductionmentioning
confidence: 99%
“…Subsequently, the levels of glucose, lactate, arginine phosphate, free glucose, glycogen, total protein, total lipids, and cholesterol were measured. The tests were performed by standard spectrophotometric methods as used for other crustaceans in the Laboratório de Fisiologia da Conservação, of the Pontifícia Universidade Católica do Rio Grande do Sul (Oliveira et al, 2003;Oliveira et al, 2007;Silva-Castiglioni et al, 2007;Buckup et al, 2008;Dutra et al, 2008).…”
Section: Methodsmentioning
confidence: 99%
“…Studies about intermediary metabolism were conducted in Brazil only with the crayfishes Parastacus varicosus, Parastacus defossus, and Parastacus brasiliensis by Silva-Castiglioni et al (2007), Buckup et al (2008), and Dutra et al (2008), respectively. These studies showed the importance of carbohydrates, total proteins, and fats in the life cycle of the animals, which were related mainly to the diet or reproductive period of the species, and showed seasonal variations in reserves.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Since the pioneer work of Kucharski and Da Silva ('91), which described the seasonal variation in the energy metabolism of the estuarine crab Neohelice granulata (formerly Chasmagnathus granulata), a number of studies have assessed the seasonal variation in the energy metabolism of crustacean species in Southern Brazil, including two aeglids (Oliveira et al, 2003, three parastacids (Silva-Castiglioni et al, 2007;Buckup et al, 2008;Dutra et al, 2008b), two amphipods (Dutra et al, , 2008a, and the ghost crab, O. quadrata (Vinagre et al, 2007). These studies revealed the existence of wide inter and intraspecific variability, which makes it difficult to determine a standard metabolic profile.…”
mentioning
confidence: 99%