Effects of fishing techniques on the flesh quality of Rutilus frisii (Nordmann, 1840)

Authors

1 Department of Fisheries, Faculty of natural resource, University of Gonbad Kavous, Gonbad Kavous

2 Department of Fishery, Faculty of Fisheries and Environment, Gorgan University of Agricultural Science and Natural Resources, Gorgan

Abstract

Beach seine and gillnetting are the most common fishing techniques of Kutum sefid (Rutilus frisii) in the southern Caspian Sea. Gillnetting carries offshore, therefore some fish die (net stays in the water for a few days) in the water but using beach seine keeps the fish alive. The situation of fish before death is an important factor affecting the flesh quality of fish. Fishing technique affects the flesh quality due to its impact on making stress on fish. Therefore, fishing techniques that cause lower physiological responses could increase flesh quality. Stress affects pH and rigor mortis and accelerates fish spoilage. Thus, the fishing must be managed to reduce stress before death.

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