Length-based fishery status of skipjack tuna, Katsuwonus pelamis (Linnaeus, 1758) (Teleostei: Scombridae: Scombrinae) in the northern waters of the Oman Sea (Iran)

Seyed Ahmadreza HASHEMI, Mastooreh DOUSTDAR, Javad GHASEMZADEH, Azarmah GHOLAMPOUR

Abstract

In the present study, population characteristics of Katsuwonus pelamis were evaluated by sampling fish at five fish landing sites in the northern Oman Sea (Iran) including Beris, Ramin, Pozm, Konarak and Jask from March 2017 to March 2018. The biometric analysis was performed on more than eleven thousand fish. Growth and mortality indices were calculated including infinite length (L∞=88cm), growth coefficient (K=0.3 (yr-1)), growth performance index (Ф=4.19), natural mortality (M= 0.58(yr-1)), fishing mortality (F=0.3 (yr-1)), total mortality (Z=0.88±0.1 (yr-1)) and exploitation coefficient (E = 0.34 (yr-1)) as well as length time at time zero (-0.41). Relative production per recruitment, relative biomass per recruitment and exploitation rate of K. pelamis were Y'/Rp=0.01, B' /Rp=0.4 and U=0.22, respectively. The present study showed that the K. pelamis had desirable stock conditions and fish stocks have not reached 'overfished' status. The Pobj value is 1<Pobj˂2, and Popt and Pmega>0, the fishery show considered medium desirable. According to the terms and situation mentioned conditions assessed, and considering the sustainable fishing requirements, it is possible to increase the catch of this species in the south of the country.

Keywords

Exploitation coefficient, Population characteristics, Length frequency.

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References

Arrizabalaga, H.; Murua, M. & Majkowski, J. 2012. Global status of tuna stocks: Summary sheets. Revista de Investigación Marina (Marine Research Journal) 19(8): 645-676.

Bartulovic, V.; Glamuzina, B.; Conides, A.; Dulcic, J.; Lucic, D.; Njire, J. & Kozul, V. 2004. Age, growth, mortality and sex ratio of sand smelt, Atherinaboyeri, Risso, 1810 (Pisces: Atherinidae) in the estuary of the Mala Neretva River (Middle-Eastern Adriatic, Croatia), Journal of Applied Ichthyology 20(1): 427-430.

Cheung, W.; Pitcher, T. & Pauly, D. 2004. A fuzzy logic expert system to estimate intrinsic extinction vulnerabilities of marine fishes to fishing. Biological Conservation 124: 97-111.

Chur, V.N. & Zharov, V.L. 1983. Determination of age and growth rate of the skipjack Tuna, Katsuwonus pelamis (Scombridae), from the southeastern part of the Gulf of Guinea. Journal of Ichthyology 23(3): 53-67.

Claro, R. & García-Arteaga, J.P. 1994. Crecimiento. Ecología de los Peces Marinos de Cuba. pp: 321-402.

CMFRI, 2012. Annual report 2011-2012. Central Marine Fisheries Research Institute, Cochin. 274 p.

CMFRI, 2016. Annual report 2016-17. Central Marine Fisheries Research Institute, Kochi. 345 p.

Collette, B.B. & Nauen, C.E. 1983. FAO species catalogue. Vol. 2. Scombrids of the World. An annotated and illustrated catalogue of tuna, mackerel’s bonitos and related Species known to date. FAO Fisheries Synopsis 125(2): 137.

Cope, J.M. & Punt, A.E. 2009. Length-based reference points for data-limited situations: applications and restrictions. Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science 1: 169-186.

Eagderi, S.; Fricke, R.; Esmaeili, H.R. & Jalili, P. 2019. Annotated checklist of the Fishes of the Persian Gulf: Diversity and conservation status. Iranian Journal of Ichthyology 6(1): 1-171.

FAO. 2018. The State of World fisheries and Aquaculture 2018-Meeting the Sustainable development goals. Rome. Licenses: CC BY-NC-SA 3.0 IGO. 227 p.

Fricke, R.; Eschmeyer, W.N. & Van der Laan, R. 2021. Eschmeyer's catalog of fishes: Genera, Species, References.http://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatmain.asp (accessed 28 April 2021).

Froese, R. & 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.

Froese, R. & Pauly, D. 2017. FishBase. World Wide Web electronic publication. http://www.fishbase.org (accessed 26 May 2018).

Froese, R. & Pauly, D. 2018. FishBase. World Wide Web electronic publication. http://www.fishbase.org (accessed 26 May 2018).

Gayanilo, F.C.; Pauly, D. & Parre, P. 2003. The FAO-ICLARM Stock ssessment Tool (FiSAT) users guide. Rome. ITALY. 235 p.

Haruna, A.; Mallawa, A.; Musbir, M. & Zainuddin, M. 2018. Population dynamic indicator of the yellowfin tuna Thunnus albacares and its stock condition in the Banda Sea, Indonesia. Aquaculture, Aquarium, Conservation & Legislation 11(4): 1323-1333.

Hashemi, S.A.R.; Alzbeta Stara, A. & Faggio, C. 2019. Biological characteristics, growth parameters and mortality rate of Carassius auratus in the Shadegan Wetland (Iran). International Journal of Environmental Research 13(1): 457-464

Hashemi, S.A.R.; Doustdar, M.; Gholampour, A. & Khanehzaei, M. 2020. Length-based fishery status of yellowfin tuna (Thunnus albacares Bonnaterre, 1788) in the Northern waters of the Oman Sea. Iranian Journal of Fisheries Sciences 19(6): 2790-2803.

IFO. 2019. Iran Fisheries Organization Yearbook of Fisheries Statistics. Bureau of Statistics, IFO, Iran. 25 p.

Kawasaki, T. 1963. The growth of skipjack on the northeastern Sea of Japan. Bull. Tohoku Regional Fisheries Research Laboratory (23): 44-60.

Keymaram, F.; Hosseini, A.; Darwishi, M.P. & Taleb Zadeh, A. 2009. Report on the Study of Population Changes of large pelagic fish (yellowfin tuna, skipjack tuna, longtail tuna, narrow-barred Spanish mackerel, etc.) for optimal harvesting of resources in the Persian Gulf and Oman Sea. Iranian Fisheries Science and Research Institute in collaboration with Chabahar Offshore Fisheries Research Center and Persian Gulf and Oman Sea Ecological Research Institute. 126 p.

King, M.G. 2007. Fisheries Biology Assessment and Management. Blackwell Publishing Ltd. pp: 189-194.

Kumar, R.; Sundaramoorthy, B.; Neethiselvan, N.; Athithan, S.; Kumar, R.; Rahangdale, S. & Sakthive, M. 2019. Length-based population characteristic and fishery of skipjack tuna (Katsuwonus pelamis Linnaeus, 1758) from Tuticorin Waters, Tamil Nadu, India. Indian Journal of Geo Marine Science 48(1): 52-59.

Lalèyè, P.A. 2006. Length-weight and length-length relationships of fish from the Ouémé River in Bénin (West Africa). Journal of Applied Ichthyology 22(1): 502-510.

Mallawa, A.; Amir, F. & Susianti W. 2015. Assessment of Katsuwonus pelamis Conditions in Flores Sea waters, South Sulawesi. Proceedings of the National Symposium on Marine and Fisheries II, pp. 299-307, Hasanuddin University Press. 513 p. (In Indonesian)

Mateus, A. & Estupina, B. 2002. Fish stock assessment of piraputanga Brycon microlepis in the Cuiabá River basin, Pantanal of Mato Grosso, Brazil. Brazilian Journal of Biology 1(1): 165-170.

Mildenberger, T.K.; Taylor, M.H. & Wolff, M. 2017. TropFishR: An R package for fisheries analysis with length-frequency data. Methods in Ecology and Evolution 8(1): 1520-1527.

Pillay, P.P. & Gopakumar, G. 1989. Stock assessment of migratory fish species based on localized data-oceanic Skipjack tuna pole and line fishery at minicoy as a case study. In Venema, S.C. & van Zalinge, N.P. (eds.), Contributions to Tropical fish stock assessment in India. FAO/DANIDA/ICAR National Follow-up Training Course on Fish Stock Assessment, Cochin, India, 2-28 November 1987. pp: 127-142

Pradeep, H.D.; Shrike, S. & Kar, A. 2017. Estimation length-based population parameters of skipjack tuna (Katsuwonus pelamis Linnaeus, 1758) in Andaman Waters (India). Journal of Fisheries 5(2): 477-482.

Sivadas, M.; Said Koya, K.P. & Pillai, N.G.K. 2005. Stock Assessment of Skipjack Tuna, Katsuwonus pelamis from Minicoy, Lakshadweep. Proceedings of the Tuna Meet, pp: 168-180.

Sparre, P. & Venema, S.C. 1998. Introduction to Tropical Fish Stock Assessment. FAO Fisheries technical paper, Roma. 450 p.

Tadjuddah, M.; Anadi, A.; Mustafa, H.; Abdullah, A.; Kamri, S. & Wianti, N.I. 2017. Growth pattern and size structure of skipjack tuna caught in Banda Sea, Indonesia. Aquaculture, Aquarium, Conservation & Legislation 10(2): 227-223.

Tandog-Edralin, D.D.; Cortez-Zaragoza, E.C.; Dalzell, P. & Pauly, D. 1990a. Some aspects of the biology and population dynamics of skipjack (Katsuwonus pelamis) in Philippine waters. Asian Marine Biology 7(1): 15-29.

Tandog-Edralin, D.D.; Cortez-Zaragoza, E.C.; Dalzell, P. & Pauly, D. 1990b. Some sspects of the biology and population dynamics of skipjack (Katsuwonus pelamis) in Philippine waters. Asian Marine Biology 7(2): 15-29.

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