length-weight relationships of garra rufa, in the tigris and persian gulf basins of iran

Authors

iraj hashemzadeh department of fisheries and environmental sciences, faculty of natural resources and earth sciences, shahr-e-kord university, shahr-e-kord, iran.

seyedeh narjes tabatabaei fisheries department, natural resources faculty, university of tehran, karaj, iran.

aghil mansouri department of fisheries and environmental sciences, faculty of natural resources and earth sciences, shahr-e-kord university, shahr-e-kord, iran.

asghar abdoli department of biodiversity and ecosystem management, environmental research institute, university of shahid beheshty, tehran, iran.

abstract

garra rufa , a bottom dwelling freshwater fish and native to the middle east, is distributed in the southwestern of iran and the tigris basin. considering the importance of length-weight relationships data of a species in different habitats, the length-weight relationship of g. rufa from 13 rivers in the persian gulf and the tigris basins was explored. the value of exponent b ranged from 2.74 to 3.19 with average of 2.99 in the tigris basin and 2.96 in the persian gulf basin which was in normal range (2.5-3.5). as the length-weight parameters were concluded for each location separately, this information would be useful for further population dynamics researches.

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Journal title:
international journal of aquatic biology

جلد ۳، شماره ۱، صفحات ۲۵-۰

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