برآورد میزان صید ماهیان زیرسایز LM50در ترالرهای صنعتی صید میگو در صیدگاه‌های استان هرمزگان

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد شیلات، گرایش بوم‌شناسی آبزیان شیلاتی دانشگاه هرمزگان

2 دانشیار گروه شیلات دانشگاه هرمزگان

3 دانشجوی دکتری شیلات گرایش تولید و بهره‌برداری دانشگاه هرمزگان

4 استادیار گروه شیلات دانشگاه هرمزگان

چکیده

چکیدة این مطالعه با هدف برآورد میزان صید ماهیان دارای اندازة غیر استاندارد (طول کمتر از LM50) در تور ترال میگو در صیدگاه‌های استان هرمزگان طی سال 1391 در فصل صید میگو انجام شد. عملیات نمونه‌برداری با کشتی‌های ترال‌کش طبس طی 55 مرتبه توراندازی انجام شد. هشت گونه از گونه‌های باارزش تجاری یا غالب در صید میگو شامل حلوا سفید (Pampus argenteus)، حلوا سیاه (Parastromateus niger)، گربه‌ماهی خاکی (Plicofollis dussumieri)، کریشو (Saurida tumbil)، گوازیم دم‌رشته‌ای (Nemipterus japonicus)، قباد (Scomberomorus guttatus)، زمین‌کن دم‌نواری (Platycephalus indicus) و شوریده (Otolithes ruber) در این مطالعه بررسی شدند. ماهیان دارای اندازة غیر استاندارد (طول کمتر از LM50) که در تور ترال میگو در صیدگاه‌های استان هرمزگان مشاهده شدند به ترتیب فراوانی عبارت بودند از: ماهی قباد (33/94 درصد)، حلوا سفید (19/93 درصد)، شوریده (57/91 درصد)، حلوا سیاه (86/89 درصد)، زمین‌کن (66/66 درصد)، ماهی کریشو (4/60 درصد)، گوازیم (38/35 درصد) و گربه‌ماهی خاکی (42/4 درصد). نتایج این مطالعه بیان‌گر تأثیرات تخریبی شدید تور ترال در گونه‌های مورد مطالعه بود که می‌تواند یکی از دلایل تغییر در ترکیب صید خلیج فارس طی سال‌های اخیر باشد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

The estimation of non-standard size fish (less than LM50) in industrial trawler fishing shrimp in the fishing grounds of Hormozgan Province

نویسندگان [English]

  • Ehsan Farrokhi 1
  • Ehsan Kamrani 2
  • Hadi Raeisi 3
  • Arash Akbarzade 4
1 MS.c. Student of Fisheries Department, Faculty of Agriculture and Natural Resources, University of Hormozgan, Iran
2 Associate Professor, Fisheries Department, Faculty of Agriculture and Natural Resources, University of Hormozgan, Iran
3 Ph.D. Candidate of Fisheries Department, Faculty of Agriculture and Natural Resources, University of Hormozgan, Iran
4 Assistant Professor, Fisheries Department, Faculty of Agriculture and Natural Resources, University of Hormozgan, Iran
چکیده [English]

This study was conducted to estimating the amount of non-standard sizes (with lengths less than LM50) fishes of shrimp trawls in the Hormozgan Province coastal water during shrimp fishing season. Sampling was carried out using the Tabas otriger commercial trawler during 55 hauls. Eight commercially valuable species including Pampus argenteus, Parastromateus niger, Plicofollis dussumieri, Saurida tumbil, Nemipterus japonicus, Scomberomorus guttatus, Platycephus indicus and Otolithes ruberwere were investigated in this study. S. guttatus (94.33%), P. argenteus (93.19%), O. ruber (91.57%), P. niger (89.86%), P. indicus (66.66%), S. tumbil (60.4%), N. japonicas (35.38%) and P. dussumieri (4.42%) had most high non-standard length in catch, respectively. LOPT were calculating for P. dussumieri. The results showed a high pressure on the species of the shrimp trawl that can be the reason of species composition change in the Persian Gulf fisheries.

کلیدواژه‌ها [English]

  • by catch
  • Hormozgan
  • LM50%
  • Shrimp
  • trawl net

مراجع

Abaszadeh, A., Y. Keivany, N. M. Soofiani and A. Falahati Marvast. 2010. Reproductive Biology of Male Saurida tumbil in the Persian Gulf (Bushehr Province). Journal of Fisheries, Iranian Journal of Natural Resources. 64: 293-307. (In Persian).
Al-Ghadban N. and Abdali, F., 1997. Sedimentation Rate and Bioturbation in the Persian Gulf. Environ. Int. 24: 23-31.
Alverson, D.L., Freeber, M.H., Murawski, S.A. and Pope, J.G. 1994. A Global assessment of fisheries by catch and discard. FAO. Fisheries Technical. 291p..
Andrew, N.L., Jones, T., Terry, C. and Pratt, R., 1995. Bycatch of an Australian stow net fishery for school prawns (Metapenaeus macleayi). Fish. Res. 22: 121-136
Carpenter, K.E., Krupp, F., Jones, D.A. and Zajonz, U., 1997. Living marine resources of Kuwait, Eastern Saudi Arabia, Bahrain, Qatar and UAE. FAO Species Identification Field guide for Fishery Purposes, Rome, Italy: FAO Publication, 293 p.
Clucas, I. 1997. A study of the option for utilization of bycatch and discards from marine capture fisheries. FAO fisheries circular.NO. Rome, FAO. 928.
Eayrs, S., N.P. Hai and J. Ley. 2007. Assessment of a juvenile and trash excluder device in a vietnamese shrimp trawl fishery. ICES Journal of marine science, 64:1598-1602.
Eskandari, S, Gh. Amirinia, S., Savari, A., Yavari, V., 1999. Determination of maturation and spawning season Otolithes ruber in coastal water of Khuzestan province. Iranian scientific Fiheries Journal. 8(1): 1-22. (In persian).
Esmaeili, A., 2006. Technical efficiency analysis for the Iranian fishery in the Persian Gulf.  ICES Journal of Marine Science, 63: 1759-1764.
Fishbase.org, 2013.  Available from http://www.fishbase.org. Accessed 10th May 2013.
Froese, R., 2006.  Cube law, condition factor and weight-length relationships: history, meta-analysis and recommendations Journal of Applied Ichthyology,  22: 241-253.
Froese, R. and Binohlan, C. 2000.  Empirical relationships to estimate asymptotic length, length at first maturity and length at maximum yield per recruit in fishes, with a simple method to evaluate length frequency data Journal of Fish Biology, 56: 758-773
Gulland, J.A., 1983. Fish stock assessment a manual of basic methods. FAO/ Wiley series on Food and Agriculture. Vol 1.Wiley-Interscience. Chichester.UK.223 p.
Hall, S.J. and Mainprize, B.M., 2005. Managing by-catch and discards: how muchprogress are we making and how can we do better? Fish Fish. 6: 134–155.
Hosseini, S. Abbas.,  Raeisi, H.,  Paighambari, S. Y., 2012. Temporal and Spatial Variations of Finfish Bycatch of Cutlassfish Trawl in Bushehr and Hormozgan Marine Waters, the Northern Persian Gulf. Journal of the Persian Gulf (Marine Science). 3(9) :1-8
International Union for the Conservation of Nature and Natural Resources (IUCN), 2011. IUCN Red List of Threatened Species. <http://www.iucnredlist.org>. Downloaded on May 4, 2011.
Kelleher, K. 2005. Discards in the world’s marine Fisheries; an update. Food and Agriculture Organization. Fisheries Technical Paper, Pp 470, 131
Khorshidian, K, 1995. Look at the limitation effect trawl on the fisheries in Bushehr Province. Fisheries Research Center of Persian Gulf. Final Report, 12 P. (in Persian).
Mohammadikia, D., 2012. Population dynamic of platycephalus indicus in coastal waters Bandar abbas. Msc thesis. Faculty of scienc. Hormozgan University. Bandar abbas, the iran, 90 P. (in Persian).
Mohammadkhani, H., 1996.Biological investigation of Parastromateus niger coastal waters Sistan and baluchistsn Province- Chabahar. Msc thesis. Islamic Azad University, north Tehran branch. Tehran the iran, 59 P.  (In Persian).
Momeni, M., Safaee, M., Kamrani, E., Kamali, E., Karimi, H., Iran, A., 2004. Reproduction of Pampus argenteus in coastal waters of Hormozgan province.Iranian Fisheries Research Organisation.Final report, 46 P. (in Persian).
Nikpey, M., 1998. Biological study Parastromateus niger and Otolithes ruber in coastal Khuzestan Province. Iranian Fisheries Research Organisation. Final report, 150 P. (in Persian).
Paighambari, S.Y., Taghavi, S.A., Ghadairnejad, S.H., Seyfabadi, J. and Faghihzade, S. 2003. Comparing the effect of several BRD on reducing commercial species fishing smaller than LM50 in shrimp trawls fishery in the Persian Gulf. Iranian Journal of Fisheries Sciences. 12(3): 13-33.
Paighambari, S.Y., and Daliri, M., 2012. The by-catch composition of shrimp trawl fisheries in Bushehr coastal waters, northern Persian Gulf. Journal of the Persian Gulf (Marine Science).3(7): 27-36
Raeisi, H,. 2011. Stock assessment and bycatch determination of trawl fishery in Largehead hairtal ( Trichiurus lepturus) in Bushehr and Hormozgan waters. Msc thesis. Faculty of Fisheries and Environmental Sciences. Gorgan University of Agricultural Sciences and Natural Resources, Gorgan,  the Iran, 109P. (in Persian).
Raeisi, H. S. A. Hosseini., S.Y. Paighambari.,  2012. Species composition of cutlassfish (Trichiurus lepturus L. 1785) trawl bycatch in the fishing grounds of Hormozgan province, Northern Persian Gulf. Journal of Utilization and Cultivation of Aquatics. 1(1): 55-67
Stobutzki, I.C., Miller, M.J., Jones, P. and Salini, J.P. 2001. Bycatch diversity and variation in a tropical Australian penaeid fishery; the implications for monitoring. Fish. Res. 53: 283-301.
Richards, M. 1998. Option for introducing BRDs on to prawn trawler in the Great Barrier Reef marine park. PAGEURL http // www.tesag.JCU,edu.au/sci-mar/BRD.ht.1-16pp.
Tonks, M.L., Griffiths, S.P., Heales, D.S., Brewer, D.T. and Dell, Q., 2008. Species composition and temporal variation of prawn trawl bycatch in the Joseph Bonaparte Gulf, northwestern Australia. Fisheries research. 89: 276-293.
Valinassab, T. GH, Zarshenas. M, fatemi. And M, Otobideh. 2006. By-catch composition of small-scale shrimp trawlers in the Persian Gulf(Hormuzgan Province), Iran. Iranian scientific Fisheries Journal. 15(2): 129-138  (In Persian).
Ward, T.J. and Rainer, S.F., 1988. Decapod Crustaceans of the North West Shelf, a Tropical Continental Shelf of North-western Australia. Australian Journal of Marine and Freshwater Research. 39: 751–765.
 

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