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Some aspects of the life history of Cobitis avicennae(Actinopterygii:Cypriniformes:Cobitidae)from Western Iran

Journal of Coastal Life Medicine 2016年第6期4卷 435-439页

作者： Hadi Jamali Rahman Patimar Vahid Daraei Nafiseh Paricheh Mohammad Farhadi Sareh Nazerian Department of Fisheries Faculty of Natural ResourcesUrmia UniversityUrmia 46414-356Iran Department of Fisheries Gonbad Kavous UniversityGonbad KavousIran Department of Fisheries Persian Gulf UniversityBooshehrIran Department of Fisheries Sari University of Agricultural Sciences and Natural ResourcesSariIran

Objective:To describe the age structure,growth,reproductive characteristics and lengthweight relationship of Cobitis avicennae(***)population inhabiting the gamasiab River,Western ***:*** was collected throughout the spawning season(February to July,2015)in gamasiab River and its age,growth,and reproductive traits were *** length was measured to the nearest 1 mm,and total weight and gonad weight to the nearest 0.001 *** age was determined using *** was determined by examination of the gonad *** number of eggs was estimated by gravimetric *** egg diameter was examined by measuring 30 eggs for each female with an ocular micrometer ***:The maximum age was 3 *** specimens size ranged from 32.63 to 100.00 mm in total length,weighing from 0.22 to 5.17 g in total ***-weight relationship was estimated as W=1E-05TL^(2.85)for females,W=1E-05TL^(2.83)for males and W=7E-06TL^(2.94)for the *** growth model was isometric for males and sexes combined and negatively allometric for *** absolute fecundity ranged between 132 and 900 eggs with a mean of 490.55 ***:The life history traits described for *** from the Western Iran basin indicated a moderate life span,a moderate body weight,a short duration of spawning season,relatively high heterogeneity in egg size and low egg *** life history traits of *** demonstrated obvious differences compared with its closely related species,indicating that latitude and local environment conditions are important selective forces for this species.

关键词： Cobitis avicennae Growth Reproduction gamasiab River

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