Targeted Fishery for Bogue Boops boops (Linnaeus, 1758) Around Sea-Cage Fish Farms in the Turkish Aegean Sea

Ertosluk, Okan; Akyol, Okan; Ceyhan, Tevfik; Özgül, Aytaç

doi:10.2478/cjf-2024-0019

Abstract

This study investigated artisanal fishing activity near sea cages in Güllük Bay in the southeastern Aegean Sea based on dockside sampling with local fishermen. The daily fishing activity of bogue Boops boops gillnetters was randomly observed in the ports of Göltürkbükü, Gündoğan, Yalıkavak and Torba over two fishing seasons, from November to April 2018 and 2019. A total of 18,163 kg of fish were caught in 147 daily operations. The composition of catches from the bogue gillnet fishery comprised 48 species from 30 families, including both fish and invertebrates. B. boops was the most abundant species with 91.9% of the catch, followed by Diplodus annularis, Scomber colias, Trachurus trachurus, Pagellus acarne and Scomber scombrus. The ratio of total bycatch biomass to commercial target species was 1:0.09. The fork length (FL) and weight of the 536 sampled B. boops ranged between 25.5 ± 0.12 cm and 293.6 ± 3.87 g, respectively. The highest catch per unit effort (CPUE) of B. boops occurred in April and averaged 58.83 ± 11.47 kg/1000 m, likely due to an increased catch during its spawning migration to open sea areas in spring.

References

Akyol, O., Ertosluk, O. (2010): Fishing near sea-cage farms along the coast of the Turkish Aegean Sea. Journal of Applied Ichthyology 26 (1), 11–15.
Search in Google Scholar Back to article
Akyol, O., Kara, A., Sağlam, C. (2014): Maximum size of saddled bream Oblada melanura Linnaeus 1758 (Osteichthyes: Sparidae) in the Southern Aegean Sea. Turkey. Journal of the Black Sea/Mediterranean Environment 20, 270-273.
Search in Google Scholar Back to article
Akyol, O., Özgül, A., Şen, H., Düzbastılar, F.O., Ceyhan, T. (2019): Determining potential conflicts between small-scale fisheries and sea-cage fish farms in the Aegean Sea. Acta Ichthyologica et Piscatoria 49 (4), 365–372.
Search in Google Scholar Back to article
Akyol, O., Özgül, A., Düzbastılar, F.O., Şen, H., Ortiz de Urbina, J.M., Ceyhan, T. (2020): Seasonal variations in wild fish aggregation near sea-cage fish farms in the Turkish Aegean Sea. Aquaculture Reports 18, 100478.
Search in Google Scholar Back to article
Arechavala-Lopez, P., Sanchez-Jerez, P., Bayle-Sempere, J., Fernandez-Jover, D., Martinez-Rubio, L., Lopez-Jimenez, J.A., Martinez-Lopez, F.J. (2011): Direct interaction between wild fish aggregations at fish farms and fisheries activity at fishing grounds: a case study with Boops boops. Aquaculture Research, 42, 996–1010.
Search in Google Scholar Back to article
Arechavala-Lopez, P., Borg, J.A., Segvic-Bubic, T., Tomassetti, P., Özgül, A., Sanchez-Jerez, P. (2015): Aggregations of wild Atlantic Bluefin Tuna (Thunnus thynnus L.) at Mediterranean offshore fish farm 452 sites: environmental and management considerations. Fisheries Research, 164, 178-184.
Search in Google Scholar Back to article
Bacher, K., Gordoa, A. (2016): Does marine fish farming affect local small-scale fishery catches? A case study in the NW Mediterranean Sea. Aquaculture Research, 47 (8), 2444–2454.
Search in Google Scholar Back to article
Bonizzoni, S., Furey, N.B., Pirotta, E., Valavanis, V.D., Würsig, B., Bearzi, G. (2014): Fish farming and its appeal to common bottlenose dolphins: modelling habitat use in a Mediterranean embayment. Aquatic Conservation, 24, 696–711.
Search in Google Scholar Back to article
Ceyhan, T., Ertosluk, O., Akyol, O., Özgül, A. (2018): The maximum size of Bogue, Boops boops (Perciformes: Sparidae) for the Mediterranean. Acta Aquatica Turcica, 14, 399-403.
Search in Google Scholar Back to article
Dempster, T., Sanchez-Jerez, P., Bayle-Sempere, J.T., Gimenez-Casalduero, F., Valle, C. (2002): Attraction of wild fish to sea-cage fish farms in the south-western Mediterranean Sea: spatial and short-term temporal variability. Marine Ecology Progress Series, 242, 237–252.
Search in Google Scholar Back to article
Dempster, T., Taquet, M. (2004): Fish aggregation device (FAD) research: gaps in current knowledge and future directions for ecological studies. Reviews in Fish Biology and Fisheries, 14: 21–42.
Search in Google Scholar Back to article
Dosdat, A. (2001): Environmental impact of aquaculture in the Mediterranean: nutritional and feeding aspects. In Uriarte A and Basurco B (eds.), Environmental Impact Assessment of Mediterranean Aquaculture Farms. Zaragoza: CIHEAM, pp. 23–36 (Cahiers Options Méditerranéennes; n. 55).
Search in Google Scholar Back to article
Fernandez-Jover, D., Sanchez-Jerez, P., Bayle-Sempere, J.T., Valle, C., Dempster, T. (2008): Seasonal patterns and diets of wild fish assemblages associated with Mediterranean coastal fish farms. ICES Journal of Marine Science, 65, 1153–1160.
Search in Google Scholar Back to article
Froese, R., Pauly, D. (2022): FishBase. World Wide Web Electronic Publication. www.fishbase.org version (08/2022). Accessed on 01 December 2022.
Search in Google Scholar Back to article
Golani, D., Öztürk, B., Başusta, N. (2006): Fishes of the eastern Mediterranean. Turkish Marine Research Foundation, Publication no. 24, Istanbul.
Search in Google Scholar Back to article
Izquierdo-Gomez, D., Gonzalez-Silvera, D., Arechavala-Lopez, P., Lopez-Jimenez, J.A., Bayle-Sempere, J.T., Sanchez-Jerez, P. (2015): Exportation of excess feed from Mediterranean fish farms to local fisheries through different targeted fish species. ICES Journal of Marine Science, 72 (3), 930–938.
Search in Google Scholar Back to article
Kara, A., Bayhan, B. (2015): Age and growth of Boops boops (Linnaeus, 1758) in Izmir Bay, Aegean Sea, Turkey. Journal of Applied Ichthyology, 31, 620-626.
Search in Google Scholar Back to article
Machias, A., Karakassis, I., Giannoulaki, M., Papadopoulou, K.N., Smith, C.J., Somarakis, S. (2005): Response of demersal fish communities to the presence of fish farms. Marine Ecology Progress Series, 288, 241–250.
Search in Google Scholar Back to article
Machias, A., Giannoulaki, M., Somarakis, S., Maravelias, C.D., Neofitou, C., Koutsoubas, D., Papadopoulou, K.N., Karakassis, I. (2006): Fish farming effects on local fisheries landings in oligotrophic seas. Aquaculture, 261, 809–816.
Search in Google Scholar Back to article
R Core Team (2020): R: A language and environment for statistical computing. R Foundation for Statistical Computing. https://www.R-project.org/. Accessed date: 26 Oct. 2020.
Search in Google Scholar Back to article
Sanchez-Jerez, P., Bayle-Sempere, J., Fernandez-Jover, D., Valle, C., Dempster, T. (2007): Ecological relationship between wild fish populations and Mediterranean aquaculture in floating fish cages. Impact of mariculture on coastal ecosystems. Lisboa, 21-24 Feb., CIESM Workshop Monographs No. 32, 86 p.
Search in Google Scholar Back to article
Sensurat-Genç, T., Akyol, O., Özgül, A., Özden, U. (2019): Food composition of whiting Merlangius merlangus, captured around the sea-cage fish farms in Ordu, Southeastern Black Sea. Journal of the Marine Biological Association of the U.K., 99, 1651-1659.
Search in Google Scholar Back to article
Wickham, H., Averick, M., Bryan, J., Chang, W., McGowan, L.D., François, R., Grolemund, G., Hayes, A., Henry, L., Hester, J., Kuhn, M., Pedersen, T.L., Miller, E., Bache, S.M., Müller, K., Ooms, J., Robinson, D., Seidel, D.P., Spinu, V., Takahashi, K., Vaughan, D., Wilke, C., Woo, K., Yutani, H. (2019): Welcome to the tidyverse. The Journal of Open Source Software 4(43), 1686.
Search in Google Scholar Back to article
Valle, C., Bayle-Sempere, J.T., Dempster, T., Sanchez-Jerez, P., Gimenez-Casalduero, F. (2007): Temporal variability of wild fish assemblages associated with a sea-cage fish farm in the south-western Mediterranean Sea. Estuarine, Coastal and Shelf Science 72, 299-307.
Search in Google Scholar Back to article

Targeted Fishery for Bogue Boops boops (Linnaeus, 1758) Around Sea-Cage Fish Farms in the Turkish Aegean Sea

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