REZA ABBASPOUR NADERI
Department of Capture Fisheries, Iranian Fisheries Research Organization, Tehran, Iran

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Bycatch composition of cutlassfish trawlers during fishing season in Bushehr and Hormozgan, Persian Gulf, Iran AHMAD FOULADI SABET; SEYED YOUSEF PAIGHAMBARI; MOJTABA POULADI; HADI RAEISI; REZA ABBASPOUR NADERI
Biodiversitas Journal of Biological Diversity Vol. 19 No. 6 (2018)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d190635

Abstract

Fouladi Sabet A, Paighambari SY, Pouladi M, Raeisi H, Abbaspour Naderi R. 2018. Bycatch composition of cutlassfish trawlers during fishing season in Bushehr and Hormozgan, Persian Gulf, Iran. Biodiversitas 19: 2275-2282. This investigation was conducted to determine the bycatch composition of cutlassfish (Trichiurus lepturus) trawlers in Bushehr and Hormozgan waters during fishing season 2013. Data collection was carried out in the summer for Bushehr and in the autumn for Hormozgan province for one month. All trawler vessels were equipped with a 36 m head rope and 75 mm stretched mesh size in the codend and 90 to 200 mm stretched mesh size in the panel. 47 species included 35 species of teleosts, 9 species of elasmobranches and 3 species of invertebrates were identified in Bushehr. Also, 48 species included 38 species of teleosts, 7 species of elasmobranches and 3 species of invertebrates were identified in Hormozgan. The weight and numerical averages of bycatch species were 25.41 (kg h-1) and 205.9 (n h-1) in Bushehr, and 92.58 (kg h-1) and 440.4 (n h-1) in Hormozagan. I. megaloptera, S. tumbil, N. japonicus, D. acuta, C. sexfasciatus, L. equulus in Bushehr and P. sextarius, I. megalopteran, M. cinereus, P. macrophthalmus, N. japonicus and S. tumbil in Hormozgan had highest catch weight. Based on the weight and number, PCA and nMDS methods were indicative of two different assemblages in hunting places. Furthermore, ANOSIM similarity analysis confirmed the results of PCA and nMDS and showed a significant difference in the catch composition of two fishing zones.
Relative condition factor, length-weight relationship, and growth of three-spotted flounder, Pseudorhombus triocellatus from Parangipettai Coast, India PALANIVEL BHARADHIRAJAN; GOPALAN MAHADEVAN; PERUMAL MURUGESAN; SAMANTHAM MURUGAN; MOJTABA POULADI; REZA ABBASPOUR NADERI
Biodiversitas Journal of Biological Diversity Vol. 20 No. 2 (2019)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d200210

Abstract

Bharadhirajan P, Mahadevan G, Murugesan P, Murugan S, Pouladi M, Abbaspour Naderi R. 2019. Relative condition factor, length-weight relationship, and growth of three-spotted flounder, Pseudorhombus triocellatus (Bloch & Schneider, 1801) from Parangipettai Coast, India. Biodiversitas 20: 373-379. The three-spotted flounder, Pseudorhombus triocellatus is usually caught as trawl by-catch from Parangipettai coastal waters but regrettably, limited information on its age structure and growth is available. Hence, the present study aims to understand some basic parameters of its biology and growth. A total of 759 specimens (360 males and 399 females) ranging from 4 cm to 13 cm in total length (TL) and 5.26-35.41 g in weight were collected from the trawl catches of Parangipettai and Mudasalodai landing center during January–December 2015. The estimated growth coefficient (b) value for males (2.797) was greater than 3 and for females (3.023) was less than 3. The relative condition factor (Kn) values of females were higher than males except during February, June, and September. The values of asymptotic length (L?) obtained in this study using various methods didn’t vary significantly (P>0.05). The most appropriate values of asymptotic length (L?) for males were 137.11 mm and for females were 141.75 mm. The most appropriate values of growth rate (K) for males were 0.397 yr-1 and for females were 0.410 yr-1. The estimated length at age 0 (t0) for males and females were 0.197 mm and 0.292 mm, respectively. The longevity (tmax) of males and females P. triocellatus were 2.04 years and 2.24 years, respectively. The result of this study provides basic information for future studies.