Comparison of some biological parameters of Leuciscus aspius (Linnaeus, 1758) from south-western part of the Caspian Sea

Document Type : Research Paper

Authors

1 University of Tehran

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

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

Abstract

During 2006-2007 in order to evaluate some biological parameters, including length-weight and length-length relationships, and condition factor of Leuciscus aspius, a total of 96 specimens were captured using seine net from Aras River, Astara, Anzali, Kiashahr coasts of Guilan Province, southern part of the Caspian Sea basin. All fresh samples were transferred to the Lab after anesthesia. In the Lab total, fork and standard lengths and total body weight were measured and recorded. To investigate the length-weight and length-length relationship parameters, 〖W=aTL〗^b and FL=a +bTL and SL=a +bFL were used, respectively. Base on the results, b-value is ranged 2.75 to 3.28 and condition factor 0.85-0.95. Maximus and minimum b parameter in Astara and Kiashahr populations, respectively, also maximum and minimum condition factor were to those to Astara and Anzali populations. Growth pattern was observed positive allometric except Kiashahr population. The regression coefficient values of length-weight and length-length relationships were estimated greather than 0.95.

Keywords

Journal of Fisheries
Volume 73, Issue 1
March 2020
Pages 113-122

Files

Share

How to cite

Statistics