Reproduction study of Rhodeus amarus in Anzali wetland

Document Type : Original Article

Authors

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

2 Inland Waters Aquaculture Research Center Iranian Fisheries Sciences Research Institute. Agricultural Research, Education and Extension Organization, Bandar Anzali

Abstract

The comparative study of a species in different habitats at the population level is of great importance. For this purpose, sampling was carried out monthly from January 2012 to June 2013. A total of 305 samples of Rhodeus amarus were taken from Anzali wetland. In the Anzali wetland population, males were more than females. The specimens were in the Anzali wetland in the longitudinal range of 33.17 to 72.28 mm and the weight range of 0.49 to 6.55 g. Mean absolute fecundity was estimated in Anzali wetland 86.6. Egg diameter in Anzali wetland varied from 0.16 to 2.40 mm. The gonadosomatic index was greater in females than in males.

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