caa a22 4500 445296577 CHVBK 20180317142543.0 cr unu---uuuuu 170323e20101201xx s 000 0 eng 10.1134/S0032945210110111 doi (NATIONALLICENCE)springer-10.1134/S0032945210110111 Reproduction characteristics of a stunted population of rudd, Scardinius erythrophthalmus (Linnaeus, 1758) living in the Anzali Lagoon (the southwest Caspian Sea, Iran) [Elektronische Daten] [Rahman Patimar, Esmaeil Nadjafypour, Mehran Yaghouby, Morteza Nadjafy] A total of 486 specimens of Scardinius erythrophthalmus caught in the Anzali lagoon, a large lagoon located in the southwest Caspian Sea (Iran), between March and June 2007 were examined. Age determination showed that the maximum ages observed were 4+ in males and 5+ in females. Isometric growth was identified from length-weight relationship in males, females and pooled data. There was no significant difference from parity in the overall sex ratio of 252 males to 234 females. The fish spawn from mid April to late May, with peak spawning in mid May with the highest average GSI value of 7.12 and 13.52 for males and females respectively. The absolute fecundity ranged between 1482-59620 eggs with the mean of 9287.87 eggs while relative fecundity ranged from 127.8 to 1737.6 eggs/g with the average of 709 eggs/g of body weight. Egg diameter ranged from 0.43 to 1.23 mm with a mean of 0.73 mm. The characteristics of rudd in the stunted population from the Anzali lagoon differ markedly from those of other localities of its range. Pleiades Publishing, Ltd., 2010 growth nationallicence fecundity nationallicence gonadosomatic index nationallicence length-weight relationship nationallicence Patimar Rahman Department of Natural Resources, Gonbad Institutes of Higher Education, Gonbad, Iran aut Nadjafypour Esmaeil Department of Natural Resources, Gonbad Institutes of Higher Education, Gonbad, Iran aut Yaghouby Mehran Department of Natural Resources, Gonbad Institutes of Higher Education, Gonbad, Iran aut Nadjafy Morteza Department of Natural Resources, Gonbad Institutes of Higher Education, Gonbad, Iran aut Journal of Ichthyology SP MAIK Nauka/Interperiodica 50/11(2010-12-01), 1060-1065 0032-9452 50:11<1060 2010 50 11489 https://doi.org/10.1134/S0032945210110111 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0032945210110111 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Patimar Rahman Department of Natural Resources, Gonbad Institutes of Higher Education, Gonbad, Iran aut NATIONALLICENCE 700 1- Nadjafypour Esmaeil Department of Natural Resources, Gonbad Institutes of Higher Education, Gonbad, Iran aut NATIONALLICENCE 700 1- Yaghouby Mehran Department of Natural Resources, Gonbad Institutes of Higher Education, Gonbad, Iran aut NATIONALLICENCE 700 1- Nadjafy Morteza Department of Natural Resources, Gonbad Institutes of Higher Education, Gonbad, Iran aut NATIONALLICENCE 773 0- Journal of Ichthyology SP MAIK Nauka/Interperiodica 50/11(2010-12-01), 1060-1065 0032-9452 50:11<1060 2010 50 11489 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer