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The Effect of the Live Bait Type and Hook Size on the Catch Per Unit Effort and Catch Composition of Seabass, Dicentrarchus labrax (L.,1758) in Longline Fisheries

Year 2021, Volume: 4 Issue: 1, 63 - 70, 12.07.2021
https://doi.org/10.46384/jmsf.947007

Abstract

The main objective of the study, was to determine the effect of the live bait type and hook size on the catch per effort and catch composition of seabass, Dicentrarchus labrax (Linnaeus, 1758) in longline fisheries. Live Mediterranean sand eel, blotched picarel and flathead grey mullet were used as baits together with 3/0, 4/0 and 5/0 J type fishing hooks. This study was carried out between March 2020 and April 2021 in the Çanakkale Strait, Turkey. The main body line thickness was 0.70 mm and snoods having a line thickness of 0.50 mm and length of 2 m were tied at 6 m intervals. The fishing time covered the period from sunset to early hours of the sun rise. In all trials, a total of 263 seabass were caught which consisted 84% of total catch followed by 42 individuals of European conger Conger conger, a non-target species, corresponding to a catch rate of 13.3%. A total of 314 fish were caught by longlines and the catch yields with respect to hook size were 149 fish with 3/0 hook, 91 fish with 4/0 hook and 74 fish with 5/0 hook. The highest and lowest numbers of non-target fish species were caught with hook size 3/0 and 5/0, respectively. Hook sizes smaller than 3/0 should not be used in seabass longline fishing to prevent excessive catch of smaller fish. Blotched picarel, Spicara maena proved to be a superior live bait than flathead grey mullet, Mugil cephalus the Mediterranean sand eel Gymnammodytes cicerelus.

References

  • Akamca, A., (2004). Çapraz ve Düz iğneli Dip Pareketalarında Avlama Etkinliği ve Tür Seçiciliği. Çukurova Üniversitesi, Fen Bilimleri Enstitüsü (Doktora Tezi), Adana.
  • Akyasan, E., Öztekin, A., Altınağaç, U., Ayaz A., (2016). Effects of Different Feather Colours in Chub mackerel (Scomber japonicus Houttuyn, 1782) Handline Used at Gökçeada Region on Fishing Eficiency. Marine Science and Technology Bulletin, 5 (1), 1-5.
  • Ari, B. & Balik, İ. (2021). Investigation of the Effects of Hook Size and Bait Type on the Catch of Whiting, Merlangius merlangus (Linnaeus, 1758) (Gadidae) in Bottom Longline Fisheries of the Black Sea. Aquatic Sciences and Engineering, 36(2), 72-77.
  • Balasubramanian, S., Pappathi, R., & Raj, S. P. (1995). Bioconcentration of zinc, lead and chromiumin serially-connected sewage-fed fish ponds. Bioresource technology, 51(2-3), 193-197.
  • Bjordal, Å. (1981). Engineering and fish reaction aspects of longlining-a review. ICES.
  • Campbell, R. (2014). Aggregate and size-based standardised CPUE indices for longline target species caught within the ETBF. Data management, provision of fishery indicators and implementation of harvest strategies for Australia’s tropical tuna fisheries, 163.
  • Clarke, S. C., Shivji, M. S., & McAllister, M. K. (2001). Identification of Species Composition in the Hong Kong Shark Fin Trade using Genetic Techniques and Trader Records.
  • Dokumacı, S., 1999. Researching catch productivity and catch composition of turbot longline using different type of hooks and baits (in Turkish). Ondokuz Mayıs Üniversitesi, Fen Bilimleri Enstitüsü, Yüksek Lisans Tezi, 62s.
  • Ferno, A., & Olsen, S. (1994). Marine Fish Behavior and Abudance Estimation.
  • Gilman, E., Chaloupka, M., Peschon, J., & Ellgen, S. (2016). Risk factors for seabird bycatch in a pelagic longline tuna fishery. PloS one, 11(5), e0155477.
  • Gökçe, M.A., Akamca,E., Özak,A.A., 2001. Anaç Olarak Kullanılacak Sparidae Familyasına Ait Bazı Türlerin Pareketa İle Avlanma Olanakları ve Av Sonrası Ölüm Oranı. E.Ü. Su Ürünleri Dergisi, 18(1-2):47-53.
  • Godøy, H., Furevik, D., & Løkkeborg, S. (2003). Reduced bycatch of red king crab (Paralithodes camtschaticus) in the gillnet fishery for cod (Gadus morhua) in northern Norway. Fisheries Research, 62(3), 377-384.
  • Gönener, S., & Samsun, O. (1996). The comparison of catch composition of loglines designed different shapes. Ege Journal of Fisheries and Aquatic Sciences, 13, 131-148.
  • Grant, S., & Berkes, F. (2007). Fisher knowledge as expert system: A case from the longline fishery of Grenada, the Eastern Caribbean. Fisheries Research, 84(2), 162-170.
  • Holt, S. J. (1963). A method for determining gear selectivity and its application. ICNAF Special Publication, 5, 106-115.Hoşsucu, H. 1991. Balıkçılık. Av Araçları ve Avlanma Yöntemleri. E.Ü. Su Ürünleri Y.O. Yayın No:22 253s. İzmir.
  • Mehanna, F.S., Hassanen, D.G., Ahmed, S.M., & Mohamed, A.O. (2021). The effect of hook size on size selectivity in Bardawil lagoon artisanal longline fishery, eastern Mediterranean, Egypt. Egyptian Journal of Aquatic Biology and Fisheries, 25(1), 511-523.
  • Mountain, D. G., & Murawski, S. A. (1992). Variation in the distribution of fish stocks on the northeast continental shelf in relation to their environment, 1980–1989. In ICES Mar. Sci. Symp (Vol. 195, pp. 424-432).
  • Otway, N. M., & Craig, J. R. (1993). Effects of hook size on the catches of undersized snatmer Pagrus auratus. Mar. Ecol. Prog. Ser. Volume, 93, 9-15.
  • Oztekin, A. (2012). Kuzey Ege Denizi’nde kullanılan dip paragat takımlarının av kompozisyonları ve seçiciliğinin belirlenmesi. Unpublished doctoral dissertation, University of Çanakkale Onsekiz Mart, Çanakkale, Turkey. (In Turkish).
  • Oztekin, A, Ozekinci, U, Ayaz, A, Cengiz, O, Altınagac, U. et al. (2014). The mouth opening-length relationship and the selectivity of bottom longline used for greater Forkbeard (Phycis blennoides B. 1768) fishing in Saros Bay (Northern Aegean Sea). Ege Journal Fisheries Aquatic Sciences 31(1): 41–45.
  • Oztekin, A., Ayaz, A., Ozekinci, U. & Kumova, C.A. (2018). Hook selectivity for Bluefish (Pomatomus saltatrix Linneaus, 1766) in Gallipoli Peninsula and Çanakkale Strait (Northern Aegean Sea, Turkey). Journal of Agricultural Sciences 24: 50–59.
  • Özdemir, S., Ayaz, A., Gurbet, R. & Erdem, Y. (2006). Farklı büyüklükte kanca ve farklı tipteki yem ile sabah tanı ve Gündüz zamanlarında kullanılan dip paraketasının av verimi. Anadolu Üniversitesi Bilim ve Teknoloji Dergisi, 7(2), 405-411.
  • Öztekin, A., Özekinci, U., & Ayaz, A. (2020). Determining the hook selectivity of bottom longline used for European hake (Merluccius merluccius, L. 1758) in Saros Bay (northern Aegean Sea, Turkey). Iranian Fisheries Journal, 19(5), 2608-2617.‎
  • Pickett, G. D., & Pawson, M. G. (1994). Sea Bass: Biology (Vol. 12). Springer Science & Business Media. Pope, J.A., Margetts, A.R., Hamley, J.M., Akyüz, E.F., 1975. Manual of Methods for Fish Stock Assessment. Part III. Selectivity of Fishing Gear. FAO Fisheries Technical Paper No. 41, Revision 1, 65 p.
  • Santos, M. N., Monteiro, C. C., & Erzini, K. (1995). Aspects of the biology and gillnet selectivity of the axillary seabream (Pagellus acarne, Risso) and common pandora (Pagellus erythrinus, Linnaeus) from the Algarve (south Portugal). Fisheries Research, 23(3-4), 223-236.
  • Ulaş, A., & Düzbastılar, F. O. (2001). Farklı Paragat Takımlarının Av Verimlerinin Karşılaştırılması. Su Ürünleri Dergisi, 18(1).
  • Wheeler, A., Fraser, T. H., Milne, A., & Stebbing, P. (1975). Fishes of the world; an illustrated dictionary.
  • Yokota, K., Mituhasi, T., Minami, H., & Kiyota, M. (2012). Perspectives on the morphological elements of circle hooks and their performance in pelagic longline fisheries. Bulletin of Marine Science, 88(3), 623-629.

Paragat ile Levrek, Dicentrarchus labrax (L.,1758) Avcılığında Canlı Yem Tipi ve İğne Büyüklüğünün Birim Av Verimi ve Av Kompozisyonu Üzerine Etkisi

Year 2021, Volume: 4 Issue: 1, 63 - 70, 12.07.2021
https://doi.org/10.46384/jmsf.947007

Abstract

Çalışmanın temel amacı, paragat ile levrek (Dicentrarchus labrax, Linnaeus, 1758) avcılığında canlı yem tipi ve iğne büyüklüğünün birim av verimi ve av kompozisyonu üzerine etkisini belirlemektir. 3/0, 4/0 ve 5/0 J tipi olta kancaları ile birlikte canlı Akdeniz kum yılanbalığı, lekeli pikarel ve yassı kefal yem olarak kullanılmıştır. Bu çalışma Mart 2020-Nisan 2021 yılları arasında Çanakkale kıyılarında gerçekleştirilmiştir. Ana beden kalınlığı 0,70 mm olup, köstek kalınlığı 0,50 mm ve uzunluğu 2 m olan köstekler 6 m aralıklarla bağlanmıştır. Paragat takımları, gün batımında kurulmuş ve sabahın ilk saatlerinde toplanmıştır. Tüm denemelerde, hedef tür olan levrek (263 adet) toplam avın %84’ünü oluşturmuş olup, bunu %13,3'lük bir yakalama oranına sahip hedef dışı bir tür olan mığrı Conger conger (42 adet) takip etmiştir. Paragat ile toplamda 314 adet olmak üzere 3/0 iğne ile 149, 4/0 iğne ile 91 ve 5/0 iğne ile 74 adet balık yakalanmıştır. En yüksek ve en düşük hedef dışı balık sayıları sırasıyla 3/0 ve 5/0 iğne ile yakalanmıştır. Paragat ile levrek avcılığında daha küçük balıkların fazla yakalanmasını önlemek için 3/0'dan küçük iğne boyutları kullanılmamalıdır. İzmarit Spicara maena, kefal Mugil cephalus ve Akdeniz kum yılanbalığı Gymnammodytes cicerelus' dan daha üstün bir canlı yem olduğunu kanıtladı.

References

  • Akamca, A., (2004). Çapraz ve Düz iğneli Dip Pareketalarında Avlama Etkinliği ve Tür Seçiciliği. Çukurova Üniversitesi, Fen Bilimleri Enstitüsü (Doktora Tezi), Adana.
  • Akyasan, E., Öztekin, A., Altınağaç, U., Ayaz A., (2016). Effects of Different Feather Colours in Chub mackerel (Scomber japonicus Houttuyn, 1782) Handline Used at Gökçeada Region on Fishing Eficiency. Marine Science and Technology Bulletin, 5 (1), 1-5.
  • Ari, B. & Balik, İ. (2021). Investigation of the Effects of Hook Size and Bait Type on the Catch of Whiting, Merlangius merlangus (Linnaeus, 1758) (Gadidae) in Bottom Longline Fisheries of the Black Sea. Aquatic Sciences and Engineering, 36(2), 72-77.
  • Balasubramanian, S., Pappathi, R., & Raj, S. P. (1995). Bioconcentration of zinc, lead and chromiumin serially-connected sewage-fed fish ponds. Bioresource technology, 51(2-3), 193-197.
  • Bjordal, Å. (1981). Engineering and fish reaction aspects of longlining-a review. ICES.
  • Campbell, R. (2014). Aggregate and size-based standardised CPUE indices for longline target species caught within the ETBF. Data management, provision of fishery indicators and implementation of harvest strategies for Australia’s tropical tuna fisheries, 163.
  • Clarke, S. C., Shivji, M. S., & McAllister, M. K. (2001). Identification of Species Composition in the Hong Kong Shark Fin Trade using Genetic Techniques and Trader Records.
  • Dokumacı, S., 1999. Researching catch productivity and catch composition of turbot longline using different type of hooks and baits (in Turkish). Ondokuz Mayıs Üniversitesi, Fen Bilimleri Enstitüsü, Yüksek Lisans Tezi, 62s.
  • Ferno, A., & Olsen, S. (1994). Marine Fish Behavior and Abudance Estimation.
  • Gilman, E., Chaloupka, M., Peschon, J., & Ellgen, S. (2016). Risk factors for seabird bycatch in a pelagic longline tuna fishery. PloS one, 11(5), e0155477.
  • Gökçe, M.A., Akamca,E., Özak,A.A., 2001. Anaç Olarak Kullanılacak Sparidae Familyasına Ait Bazı Türlerin Pareketa İle Avlanma Olanakları ve Av Sonrası Ölüm Oranı. E.Ü. Su Ürünleri Dergisi, 18(1-2):47-53.
  • Godøy, H., Furevik, D., & Løkkeborg, S. (2003). Reduced bycatch of red king crab (Paralithodes camtschaticus) in the gillnet fishery for cod (Gadus morhua) in northern Norway. Fisheries Research, 62(3), 377-384.
  • Gönener, S., & Samsun, O. (1996). The comparison of catch composition of loglines designed different shapes. Ege Journal of Fisheries and Aquatic Sciences, 13, 131-148.
  • Grant, S., & Berkes, F. (2007). Fisher knowledge as expert system: A case from the longline fishery of Grenada, the Eastern Caribbean. Fisheries Research, 84(2), 162-170.
  • Holt, S. J. (1963). A method for determining gear selectivity and its application. ICNAF Special Publication, 5, 106-115.Hoşsucu, H. 1991. Balıkçılık. Av Araçları ve Avlanma Yöntemleri. E.Ü. Su Ürünleri Y.O. Yayın No:22 253s. İzmir.
  • Mehanna, F.S., Hassanen, D.G., Ahmed, S.M., & Mohamed, A.O. (2021). The effect of hook size on size selectivity in Bardawil lagoon artisanal longline fishery, eastern Mediterranean, Egypt. Egyptian Journal of Aquatic Biology and Fisheries, 25(1), 511-523.
  • Mountain, D. G., & Murawski, S. A. (1992). Variation in the distribution of fish stocks on the northeast continental shelf in relation to their environment, 1980–1989. In ICES Mar. Sci. Symp (Vol. 195, pp. 424-432).
  • Otway, N. M., & Craig, J. R. (1993). Effects of hook size on the catches of undersized snatmer Pagrus auratus. Mar. Ecol. Prog. Ser. Volume, 93, 9-15.
  • Oztekin, A. (2012). Kuzey Ege Denizi’nde kullanılan dip paragat takımlarının av kompozisyonları ve seçiciliğinin belirlenmesi. Unpublished doctoral dissertation, University of Çanakkale Onsekiz Mart, Çanakkale, Turkey. (In Turkish).
  • Oztekin, A, Ozekinci, U, Ayaz, A, Cengiz, O, Altınagac, U. et al. (2014). The mouth opening-length relationship and the selectivity of bottom longline used for greater Forkbeard (Phycis blennoides B. 1768) fishing in Saros Bay (Northern Aegean Sea). Ege Journal Fisheries Aquatic Sciences 31(1): 41–45.
  • Oztekin, A., Ayaz, A., Ozekinci, U. & Kumova, C.A. (2018). Hook selectivity for Bluefish (Pomatomus saltatrix Linneaus, 1766) in Gallipoli Peninsula and Çanakkale Strait (Northern Aegean Sea, Turkey). Journal of Agricultural Sciences 24: 50–59.
  • Özdemir, S., Ayaz, A., Gurbet, R. & Erdem, Y. (2006). Farklı büyüklükte kanca ve farklı tipteki yem ile sabah tanı ve Gündüz zamanlarında kullanılan dip paraketasının av verimi. Anadolu Üniversitesi Bilim ve Teknoloji Dergisi, 7(2), 405-411.
  • Öztekin, A., Özekinci, U., & Ayaz, A. (2020). Determining the hook selectivity of bottom longline used for European hake (Merluccius merluccius, L. 1758) in Saros Bay (northern Aegean Sea, Turkey). Iranian Fisheries Journal, 19(5), 2608-2617.‎
  • Pickett, G. D., & Pawson, M. G. (1994). Sea Bass: Biology (Vol. 12). Springer Science & Business Media. Pope, J.A., Margetts, A.R., Hamley, J.M., Akyüz, E.F., 1975. Manual of Methods for Fish Stock Assessment. Part III. Selectivity of Fishing Gear. FAO Fisheries Technical Paper No. 41, Revision 1, 65 p.
  • Santos, M. N., Monteiro, C. C., & Erzini, K. (1995). Aspects of the biology and gillnet selectivity of the axillary seabream (Pagellus acarne, Risso) and common pandora (Pagellus erythrinus, Linnaeus) from the Algarve (south Portugal). Fisheries Research, 23(3-4), 223-236.
  • Ulaş, A., & Düzbastılar, F. O. (2001). Farklı Paragat Takımlarının Av Verimlerinin Karşılaştırılması. Su Ürünleri Dergisi, 18(1).
  • Wheeler, A., Fraser, T. H., Milne, A., & Stebbing, P. (1975). Fishes of the world; an illustrated dictionary.
  • Yokota, K., Mituhasi, T., Minami, H., & Kiyota, M. (2012). Perspectives on the morphological elements of circle hooks and their performance in pelagic longline fisheries. Bulletin of Marine Science, 88(3), 623-629.
There are 28 citations in total.

Details

Primary Language Turkish
Subjects Fisheries Management
Journal Section Research Articles
Authors

Ömer Serhat Uysal 0000-0003-1612-4596

Alkan Öztekin 0000-0003-3914-9788

Publication Date July 12, 2021
Submission Date June 2, 2021
Published in Issue Year 2021 Volume: 4 Issue: 1

Cite

APA Uysal, Ö. S., & Öztekin, A. (2021). Paragat ile Levrek, Dicentrarchus labrax (L.,1758) Avcılığında Canlı Yem Tipi ve İğne Büyüklüğünün Birim Av Verimi ve Av Kompozisyonu Üzerine Etkisi. Çanakkale Onsekiz Mart University Journal of Marine Sciences and Fisheries, 4(1), 63-70. https://doi.org/10.46384/jmsf.947007