Aras is one of the largest rivers in northwest Iran and Caspian sea basin. Aras dam reservoir with max capacity = 1350 × 106 m3, max area = 153 km2, mean depth = 20 m and height = 36 m was established on this river in 1972. It is one of the most important inland water fish stocks and aquaculture resources in Iran. More than 700 people working on two cooperative fisheries companies in the area. Freshwater crayfish (Astacus leptodactylus) of Aras Dam is of a great interest in Europe as a luxury and delicious food. The purpose of the present study was to distinguish an unusual morphological abnormality in freshwater crayfish forks and its probable causes. The results of this research were obtained during the crayfish study project aiming to assess stock and biological status in Aras Dam Reservoir in 2016. Crayfishes caught with funeral and foldable traps and the biometery and morphological characteristics of specimens were measured in laboratory. This is the first report of the unusual growth of freshwater crayfish (Astacus leptodactylus) fork in Aras Dam. A male crayfish was caught with a total length of 153mm and weighing 154 g had a fork length of 190 mm with 7 left finger straps. The probable cause can be attributed to any small lesions created in the ligaments (wound, amputation), stimulation to growth (reconstruction) of additional ligaments.
| Published in | American Journal of Zoology (Volume 5, Issue 2) |
| DOI | 10.11648/j.ajz.20220502.12 |
| Page(s) | 20-23 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2022. Published by Science Publishing Group |
Astacus leptodactylus, Aras Dam, Unusual Growth
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APA Style
Masoud Seidgar, Saber Shiri, Ali Nekouiefard, Ali Reza Valipour, Feriedun Mohebbi. (2022). The First Report of an Unusual Freshwater Crayfish (Astacus leptodactylus) in Aras Dam of Iran - A Case Study. American Journal of Zoology, 5(2), 20-23. https://doi.org/10.11648/j.ajz.20220502.12
ACS Style
Masoud Seidgar; Saber Shiri; Ali Nekouiefard; Ali Reza Valipour; Feriedun Mohebbi. The First Report of an Unusual Freshwater Crayfish (Astacus leptodactylus) in Aras Dam of Iran - A Case Study. Am. J. Zool. 2022, 5(2), 20-23. doi: 10.11648/j.ajz.20220502.12
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Download@article{10.11648/j.ajz.20220502.12,
author = {Masoud Seidgar and Saber Shiri and Ali Nekouiefard and Ali Reza Valipour and Feriedun Mohebbi},
title = {The First Report of an Unusual Freshwater Crayfish (Astacus leptodactylus) in Aras Dam of Iran - A Case Study},
journal = {American Journal of Zoology},
volume = {5},
number = {2},
pages = {20-23},
doi = {10.11648/j.ajz.20220502.12},
url = {https://doi.org/10.11648/j.ajz.20220502.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajz.20220502.12},
abstract = {Aras is one of the largest rivers in northwest Iran and Caspian sea basin. Aras dam reservoir with max capacity = 1350 × 106 m3, max area = 153 km2, mean depth = 20 m and height = 36 m was established on this river in 1972. It is one of the most important inland water fish stocks and aquaculture resources in Iran. More than 700 people working on two cooperative fisheries companies in the area. Freshwater crayfish (Astacus leptodactylus) of Aras Dam is of a great interest in Europe as a luxury and delicious food. The purpose of the present study was to distinguish an unusual morphological abnormality in freshwater crayfish forks and its probable causes. The results of this research were obtained during the crayfish study project aiming to assess stock and biological status in Aras Dam Reservoir in 2016. Crayfishes caught with funeral and foldable traps and the biometery and morphological characteristics of specimens were measured in laboratory. This is the first report of the unusual growth of freshwater crayfish (Astacus leptodactylus) fork in Aras Dam. A male crayfish was caught with a total length of 153mm and weighing 154 g had a fork length of 190 mm with 7 left finger straps. The probable cause can be attributed to any small lesions created in the ligaments (wound, amputation), stimulation to growth (reconstruction) of additional ligaments.},
year = {2022}
}
TY - JOUR T1 - The First Report of an Unusual Freshwater Crayfish (Astacus leptodactylus) in Aras Dam of Iran - A Case Study AU - Masoud Seidgar AU - Saber Shiri AU - Ali Nekouiefard AU - Ali Reza Valipour AU - Feriedun Mohebbi Y1 - 2022/05/12 PY - 2022 N1 - https://doi.org/10.11648/j.ajz.20220502.12 DO - 10.11648/j.ajz.20220502.12 T2 - American Journal of Zoology JF - American Journal of Zoology JO - American Journal of Zoology SP - 20 EP - 23 PB - Science Publishing Group SN - 2994-7413 UR - https://doi.org/10.11648/j.ajz.20220502.12 AB - Aras is one of the largest rivers in northwest Iran and Caspian sea basin. Aras dam reservoir with max capacity = 1350 × 106 m3, max area = 153 km2, mean depth = 20 m and height = 36 m was established on this river in 1972. It is one of the most important inland water fish stocks and aquaculture resources in Iran. More than 700 people working on two cooperative fisheries companies in the area. Freshwater crayfish (Astacus leptodactylus) of Aras Dam is of a great interest in Europe as a luxury and delicious food. The purpose of the present study was to distinguish an unusual morphological abnormality in freshwater crayfish forks and its probable causes. The results of this research were obtained during the crayfish study project aiming to assess stock and biological status in Aras Dam Reservoir in 2016. Crayfishes caught with funeral and foldable traps and the biometery and morphological characteristics of specimens were measured in laboratory. This is the first report of the unusual growth of freshwater crayfish (Astacus leptodactylus) fork in Aras Dam. A male crayfish was caught with a total length of 153mm and weighing 154 g had a fork length of 190 mm with 7 left finger straps. The probable cause can be attributed to any small lesions created in the ligaments (wound, amputation), stimulation to growth (reconstruction) of additional ligaments. VL - 5 IS - 2 ER -
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