Comparing the efficiency and potential of ghost fishing in wire and rebar gargoors in the waters of Bushehr province (Persian Gulf)

Document Type : scientific research article

Authors

1 Ph.D. Student of Aquatics Production and Exploitation, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran

2 Corresponding Author, Associate Prof., Dept. of Aquatics Production and Exploitation, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran

3 . Professor, Dept. of Aquatics Production and Exploitation, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.

4 Professor of the Safina Center, USA

5 Iran Fisheries Organization, Tehran, Iran

6 Assistant Prof., Dept. of Fisheries, Faculty of Agriculture and Natural Resources, Gonbad Kavus University, Gonbad Kavus, Iran.

7 Agricultural and Natural Resources Research Center, Bushehr, Iran

Abstract

The process of catching fishing gear that goes out of control is called ghost fishing. Abandoned, lost or discarded fishing gears (ALDFG) can cause adverse economic and environmental effects. Passive fishing gears, such as cages, produce more severe effects after being released into the water. Gargoors are one of the types of cages, which every year a large number of them are left in the sea in the Persian Gulf and the Oman Sea, for various reasons. In recent years, a new generation of gargoors with a rebar body covered with net are used in the waters of Bushehr. In this study, which was conducted from November to July 1400 in the waters of Bushehr, totally, in 310 cruises in 30 coordinates, by 9 vessels, 90 gargoors made of rebar were surveyed. All of them were baited with wolf herring and catfish. 24 species from 12 families were identified. The most observed species was Orange-spotted grouper (Epinephelus coioides). The results showed that all the gargoors made of rebar, if they are not lost, return to the land after the end of fishing. The main reasons for getting lost were theft, trawling, and bottom gillnets, respectively. Also, to confirm the sampling results, 40 questionnaires were distributed among the fishermen. According to the results, rebar gargoors are preferred over wire gargoors in terms of life, strength, economic efficiency and lower amount of ALDFG. It is recommended that researchers combine their knowledge with the experiences of fishermen to design gargoors with fewer disadvantages while maintaining the merits of different gargoor models, especially from the economic and environmental point of view.

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1.Macfadyen, G., Huntington, T., & Cappell, R. (2009). Abandoned, lost or otherwise discarded fishing gear. UNEP Regional Seas Reports and Studies No. 185; FAO Fisheries and Aquaculture Technical Paper, No. 523. Rome. https://www.fao.org/ fileadmin/ user_ upload/newsroom/docs/Ghost_fishing_report.pdf.
2.Smolowitz, R. J. (1978). Trap design and ghost fishing – discussion. Marine Fisheries Review, 40 (5-6), 59-67.
3.Ayaz, A. (2003). Denizde kaybolan av araçlarının yaptığı istenmeyen avcılık üzerine araştırmalar. Ege Üniversitesi Fen Bilimleri Enstitüsü, Doktara tezi, İzmir, 79 s.
4.Ayaz, A., Ünal, V., & Özekinci, U. (2004). İzmir Körfezi’nde hayalet avcılığa neden olan kayıp uzatma ağı miktarının tespitine yönelik bir araştırma. Ege Journal of Fisheries and Aquatic Sciences, 21, 35-38.
5.Ayaz, A., Acarli, D., Altinagac, U., Ozekinci, U., Kara, A., & Ozen, O. (2006a). Ghost fishing by monofilament and multifilament gillnets in Izmir Bay, Turkey. Fisheries Research, 79 (3), 267271.
6.Ayaz, A., Özekinci, U., Altınağac, U., & Özen, Ö. (2006b). Üstten girişli yuvarlak tel sepetlerin hayalet avcılık açısından incelenmesi, Ege Journal of Fisheries and Aquatic Sciences, 23 (1/3), 351-354.
7.Ayaz, A., Ünal, V., Acarli, D., & Altınağaç, U. (2010). Fishing gear losses in the Gökova Special Environmental Protection Area (SEPA), eastern Mediterranean, Turkey. Journal of Applied Ichthyology, 26, 416-419. DOI: 10.1111/j.1439-0426.2009.01386.x.
8.İbin, T., & Ayaz, A. (2021). Determination of Ghost Fishing Starting Time by Four Different Baited Fish Traps in the Çanakkale Strait (North Aegean Sea). COMU J. Mar. Sci. Fish.4 (1), 42-52. DOI: 10.46384/jmsf.929737.
9.Nissa, A., Lekshmi, N. M., Kumar, B. M., Das, S. K., & Goud, A. (2021). Structural and Operational Aspects of Fishing Traps of Meghalaya, North East India. Fishery Technology, 58, 147-154.
10.Dastbaz, M., Paighambari, S. Y., & Gorgin, S. (2017). Effect of bait types and shapes on catch composition and diversity of fish pot in Bandar Lengeh waters (Persian Gulf). JAIR. 5 (3), 71-90 [In Persian]
11.Bullimore, B., Newman, P. B., Kaiser, M. J., Gilbert, S. E., & Lock, K. M. (2001). A study of catches in a fleet of “ghost-fi shing” pots Blaise. Fish. Bull. 99, 247-253.
12.Ebrahimi, M., & Arabidi, M. (2019). Gargoor fishing as a social phenomenon, a complete study on the relationship between indigenous techniques and environment, development and social relations in Genova. Two scientific quarterly journals of Iranian native knowledge, 6th year, number 14, autumn and winter 2019, pp. 189-220.
13.Haghighatjou, N., Gorgin, S., Ghorbani, R., Gilman, E., Naderi, R.A., Raeisi, H., & Farrukhbin, Sh. (2022). Rate and amount of abandoned, lost and discarded gear from the Iranian Persian Gulf Gargoor pot fishery. Marine Policy. 141, 105100. [In Persian]
14.Al-Masroori, H., Al-Oufi, H., McIlwain, J. L., & McLean, E. (2004). Catches of lost fish traps (ghost fishing) from fishing grounds near Muscat, Sultanate of Oman. Fisheries Research, 69 (3): 407-414.
15.Antonelis, K., Huppert, D., Velasques, D., & June, J. (2011). Dungeness crab mortality due to lost traps and a cost-benefit analysis of trap removal in Washington state waters of the Salish Sea. North American Journal of Fisheries Management, 31, 880-893.
16.Breen, P. A. (1985). Ghost fishing by dungeness crab traps: A preliminary report. Canadian Manuscript Reports of Fisheries and Aquatic Sciences, No. 1848, 51-55.
17.Campbell, M. J., & Sumpton, W. D. (2009). Ghost fishing in the pot fishery for blue swimmer crabs Portunus pelagicus in Queensland, Australia. Fisheries Research, 95 (2-3), 246-253. DOI:10.1016/j.fishres.2008.09.026.
18.Tschernij, V., & Larsson, P. O. (2003). Ghost fishing by lost cod gill nets in the Baltic Sea. Fish. Res. 64, 151-162.
19.Matsuoka, T., Nakashima, T., & Nagasawa, N. (2005). A review of ghost fishing: scientific approaches to evaluation and solutions. Fish. Sci. 71, 691-702.
20.Brown, J., & Macfadyen, G. (2007). Ghost fishing in European waters: impacts and management responses. Mar. Policy. 31, 488-504.
21.Suuronen, P., Chopin, F., Glass, C., Løkkeborg, S., Matsushita, Y., Queirolo D., & Rihan D. (2012). Low impact and fuel efficient fishing-looking beyond the horizon. Fish. Res. 119-120, 135-146.
22.Queirolo, D., & Gaete, E. (2014). Experimental study of ghost fishing by gillnets in Laguna Verde Valparaíso, Chile. Lat. Am. J. Aquat. Res.42 (5), 1189-1193.
23.Al‐Baz, A., Bishop, J. M., Al‐Husaini, M., & Chen, W. (2018). Gargoor trap fishery in Kuwait, catch rate and
species composition. J. Appl Ichthyol. 34, 867–877.
24.Scharer, M., Prada, M. C., & Appeldoorn, R. S. (2004). The use of fish traps in Puerto Rico: Current practice, longterm changes, and fishers’ perceptions. 55th Gulf and Caribbean Fisheries Institute.