Estimation of gillnets selectivity for greater lizardfish, Saurida tumbil (Bloch, 1795) in coastal waters of the Oman Sea
---
Downloads
The selectivity of greater lizardfish (Saurida tumbil), which is one of the most abundant economic species caught by gillnets in the northeast of the Oman Sea, Iranian waters, was studied. Sampling was conducted from February to March 2021. Four types of gillnets with mesh sizes of 4.8, 6.3, 10.0, and 15.3 cm were used and 857 fish specimens were collected. The catch patterns, including (snagged, gilled, wedged, and entangled) for S. tumbil were observed in gillnets. For 4.8 and 6.3 cm mesh sizes, more than 70% of the catch was mainly obtained by gilled, followed by wedged, and no found of entanglement. For 10.0 and 15.3 cm mesh sizes, the catch of 10.0 mesh size included 16% of fish caught from wedging, though most of the fish was caught by entanglement. In particular, all catches at 15.3 cm were due to entanglement. Estimation of gillnets selectivity for S. tumbil was performed using the SELECT method. The SELECT method was used to fit three various gillnet selectivity models (log-normal, skew-normal, and bi-normal). Gillnets selectivity was best estimated by a bi-modal Selection curve. The mean lengths ±SE were estimated as 31.48±0.71, 40.3±0.97, 40.1±0.75 and 43.9±1.05 cm for 4.8, 6.3, 10.0 and 15.3 cm mesh sizes, respectively. Mean lengths increased with increasing the mesh size. Most of the fish caught in the 4.8 and 6.3 cm mesh sizes were below the first maturity length (Lm50). Considering the relative efficiency set as 0.5, that was L50 (50% retention length), the optimal mesh size was determined to be 10.0 cm. Therefore, to protect S. tumbil stock and the sustainability of the fishing resource, the gillnet mesh size should be at 10.0 cm to manage S. tumbil in this area.
Downloads
Abbaszadeh A., Keyvani Y., Mahbobi Soofiani N., Falahati Marvast A. (2010). Biology of the female Lizardfish, Saurida tumbil reproductive from the Persian Gulf (Bushehr province). Journal of Fisheries, 4(1): 16.
Abaszadeh A., Keivany Y., Mahboobi Soofiyani N., Falahati Marvast A. (2013). Reproductive biology of the greater lizardfish, Saurida tumbil (Bloch, 1795), in Bushehr coastal waters of Iran. Turkish Journal of Zoology, 37: 717-722.
Ago N.D., Binyotubo T.E., Kwen K. (2014). Mesh size selectivity of multifilament gillnet at Fakun village, north of Lake Jebba. Journal of Fisheries and Aquatic Sciences, 9(4): 272-276.
Alves P.M.F., Arfellicaand Tomás A.R. (2009). Caracterização da pesca de emalhe do litoral do Estado de São Paulo, Brasil. Boletim do Institue de Pesca São Paulo, 35(1): 17-27.
Armstrong D.W., Ferro R.S.T., Maclennan D.N., Reeves, S.A. (1990). Gear selectivity and the conservation of fish. Journal of Fish Biology, 37A: 261-262.
Bizzarro J.J., Smith W.D., Marquez-Farias J.F., Tyminski J., Hueter R.E. (2009). Temporal variation in the artisanal elasmobranch fishery of Sonora, Mexico. Fisheries Research, 97: 103-117.
Carol J., Garc?a-Berthou E. (2007). Gillnets selectivity and its relationship with body shape for eight freshwater fish species. Journal of Applied Ichthyology, 23: 654-660.
Chuenpagdee R., Jentoft S. (2018). Transforming the governance of small-scale fisheries. Maritime Studies, 17: 101-115.
Eagderi S., R 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: 1-171.
Fisher W., Bianchi G. (1984). FAO species identification sheets for fishery purposes. Western Indian Ocean (Fishing area 51). Fishery Resources and Environment Division FAO Fisheries Department Rome, Italy. FAO. Vol. IV. pp: 244-258.
Fujimori Y., Tokai T. (2001). Estimation of gillnets selectivity curve by maximum likelihood method. Fisheries Science, 67: 644-654.
Genc Y., Mutlu C., Zengin M., Ayd?n I., Zengin B., Tabak I. (2002). Determination of the Eastern Black Sea fishing power effect on demersal fish stocks. Ministry of Agriculture and Rural Affairs of Turkey. Final Report TAGEM /IY/96/17/03/006. Central Fisheries Research Institute. Trabzon. 122 p.
Grati F., Bolognini L., Domenichetti F., Fabi G., Polidori P., Santelli A., Scarcella G., Spagnolo A. (2015). The effect of monofilament thickness on the catches of gillnets for common sole in the Mediterranean small-scale fishery. Fisheries Research, 164: 170-177.
Goldshmidt O., Galil B., Golani D., Lazar B., Erez J., Baranes A. (1996). Food selection and habitat preferences in deep-sea fishes of the northern Red Sea. In: F. Uiblein, J. Ott, M.Stachowtisch (Eds.). Deep-sea and extreme shallow-water habitat: affinities and adaptations. Biosystematics and Ecology Series, 11: 271-298.
Gray C.A., Johnson D.D., Broadhurst M.K., Young D.J. (2005). Seasonal, spatial, and gear-related influences on relationships between retained and discarded catches in a multi-species gillnet fishery. Fisheries Research, 75: 56-72.
Hamley J.M. (1975). Review of gillnet selectivity. Journal of the Fisheries Research Board of Canada, 32: 1943-1969.
Hosseini S.A., Kaymarm F., Behzady S., Kamaly E., Darvishi M. (2017). Drift Gillnets Selectivity for Indo-Pacific King Mackerel, Scomberomorus guttatus, Using Girth Measurements in the North of Persian Gulf. Turkish Journal of Fisheries and Aquatic Sciences, 17(6): 1145-1156.
Hovgård H. (1996). A two-step approach to estimating selectivity and fishing power of research gillnets used in Greenland waters. Canadian Journal of Fisheries and Aquatic Sciences, 53: 1007-1013.
Iranian Fisheries Statistics Yearbook. (2021). Statistical Yearbook of Iran Fisheries Organization 2015-2020. Publications: Planning and Budget Office. 64 p.
Jaiswar A.K., Chakraborty S.K., Prasad P.R., Palaniswamy R., Bommireddy S. (2003). Population dynamics of lizardfish Saurida tumbil (Teleostomi/Synodontidae) from Mumbai, west coast of India. Indian Journal of marine Sciences, 32: 147-150.
Kalayc? F., Ye?ilçiçek T. (2014). The size selectivity of whiting (Merlangius merlangus euxinus) caught by gillnets in the eastern Black Sea of Turkey. Journal of the Marine Biological Association of the United Kingdom, 94(7): 1539-1544.
Latife A.A., Shenouda T.S. (1973). Studies on Saurida undosquamis (Richardson) from the Gulf of Suez. Monthly peculiarities of gonads. Bulletin of the National Institute of Oceanography and Fisheries, Egypt, 3: 295-335.
Losanes L.P., Matuda K., Machii T., Koike A. (1992). Catching efficiency and selectivity of entangling nets. Fisheries Research, 13: 9-23.
Madsen N., Holst R., Wileman D., Moth-Poulsen T. (1999). Size selectivity of sole gillnets fished in the North Sea. Fisheries Research, 44(1): 59-73.
Millar R.B. (1992). Estimating the size-selectivity of fishing gear by conditioning on the total catch. Journal of The American Statistical Association, 87: 962-968.
Millar R.B., Fryer R.J. (1999). Estimating the size-selection curves of towed gears, traps, nets and hooks. Reviews in Fish Biology and Fisheries, 9: 89-116.
Millar R.B., Holst R. (1997). Estimation of gillnet selectivity using log-linear models. ICES Journal of Marine Science, 54: 471-477.
Millner R.S. (1985). The use of anchored gill and tangle nets in the sea fisheries of England and Wales. Lowestoft: Ministry of Agriculture, Fisheries and Food. Directorate of Fisheries Research, Laboratory Leaflet No. 57.
Pope J.A., Margetts A.R., Hamley J.M., Akjiiz E.F. (1975). Manual of methods for fish stock assessment. Part III. Selectivity of fishing gear. Food and Agriculture Organization of the United Nations. Fisheries Technical Paper 41: Review 1.
Pouladi M., Paighambari S.Y., Millar R.B., Babanezhad M. (2020). Catch composition and biodiversity and determining gillnets selectivity for (Scomberomorus commerson, Lacepède. 1800) in Bushehr County, Persian Gulf, Iran with using the SELECT method. PhD thesis. Gorgan University of Agricultural Sciences and Natural Resource, Gorgan, Iran. 100 p.
Poulsen S., Nielsen J.R., Holst R., Stoehr K.J. (2000). An Atlantic herring (Clupea harengus) size selection model for experimental gillnets used in the Sound (ICES Subdivision 23). Canadian Journal of Fisheries and Aquatic Sciences, 57: 1551-1561.
Russell B.C., Houston W. (1989). Offshore fishes of the Arafura Sea. Beagle, 6: 69-84.
Rahimi Bashar M.R., Alipour V., Hamidi P., Hakimi B. (2012). Biometric Characteristics, Diet and Gonad Index of Lizardfish (Saurida tumbil, Bloch 1795) in North of the Persian Gulf. World Journal of Fish and Marine Sciences, 4(1): 01-06.
Regier H.A., Robson D.S. (1966). Selectivity of gill nets, especially to Lake Whitefish. Journal of the Fisheries Research Board of Canada, 23(3): 423-454.
Reis E.G., Pawson M.G. (1993). Gill net selectivity of bass and white croaker using commercial catch data. NAFO SCR Doc. 93/97. 23 p.
Sadough Niri A., Kamrani E., Khanipour A.A., Madsen N., Sourinejad I. (2020). Determining gillnets selectivity for Longtail tuna (Thunnus tonggol Bleeker, 1851) using artisanal fishery data in the Iranian waters of the Oman Sea. Iranian Journal of Fisheries Sciences, 19(1): 510-517.
Savina E., Herrmann B., Frandsen R.P., Krag L.A. (2021). A new method for estimating length-dependent capture modes in gillnets: a case study in the Danish cod (Gadus morhua) fishery. ICES Journal of Marine Science, 79(2): 373-381.
Sechin Y.T. (1969). A mathematical model for the selectivity curve of a gillnets. Rybnoe Khozyajstvo, 45(9): 56-58.
Shindo S. (1972). Note on the study on the stock of lizard fish, Saurida tumbil in the East China Sea. Proceeding of Interline Power Flow Controller, 13: 298-305.
Soofiani N.M., Keivany Y., Shooshtari A.M. (2006). Contribution to the biology of the Lizardfish,
Saurida tumbil (Teleostei: Aulopiformes), from the Persian Gulf. Zoology in the Middle East, 38(1): 49-56.
Sparre P., Venema S. (1998). Introduction to Tropical Fish Stock Assessment - Part 1: Manual. FAO Fisheries Technical Paper 306/1 Rev. 2: 64 p.
Stevens J.D., Bonfil R., Dulvy N.K., Walker P.A. (2000). The effects of fishing on sharks, rays, and chimaeras (Chondrichthyans), and the implications for marine ecosystems. ICES Journal of Marine Science, 57: 476-494.
Taghavi Motlagh S.A, Seyfabadi J., Vahabnezhad A., Ghodrati Shojaei M., Hakimelahi M. (2010). Some reproduction characteristics and weight-length relationships of the spangled emperor, Lethrinus nebulous (Lethrinidae) of the South Coastal of Iran (Persian Gulf and Oman Sea). Turkish Journal of Fisheries and Aquatic Science, 10: 221-227.
Taghavi Motlagh S.A., Vahabnezhad A., Shabani M.J., Nazari M.A., Hakimelahi M. (2012). Studies on the reproductive biology of the female Saurida tumbil in the Persian Gulf (Bushehr Province, Iran). World Journal of Fish and Marine Sciences, 4(4): 400-406.
Vahab Nezhad A., Taghavi Motlagh S.A., Ghodrati Shojaei M. (2021). Seasonal variations in diet and feeding habits of Saurida tumbil (Bloch, 1795), Netuma thalassina (Rüppell, 1837) and Pomadasys kaakan (Cuvier, 1830) in the northern coasts of the Oman Sea. Iranian Journal of Fisheries Sciences, 20(3): 694-709.
Zeller D., Cashion T., Palomares M., Pauly D. (2018). Global marine fisheries discards: A synthesis of reconstructed data. Fish and Fisheries, 19: 30-39.
Copyright (c) 2023 International Journal of Aquatic Biology
This work is licensed under a Creative Commons Attribution 4.0 International License.
