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Selectivity of some fish species caught as bycatch by bogue gillnets around North Aegean Sea

Yıl 2017, Cilt: 34 Sayı: 1, 103 - 110, 21.02.2017

Gökhan Subakan Alkan Öztekin , İsmail Burak Daban , Adnan Ayaz

https://doi.org/10.12714/egejfas.2017.34.1.14
Cited By: 2

Öz



In this study,
gillnet selectivity of saddled seabream (Oblada melanura), common
two-banded seabream (Diplodus vulgaris), annular seabream (Diplodus
annularis) and Mediterranean horse mackerel (Trachurus
meditterraneus) which were caught by bogue gillnets with 20, 22, 23 and 25
mm mesh size (nominal bar lenght) have been determined. Fishing trials were
carried out in Noth Aegean Sea from March 2008 to February 2010. Selectivity
parameters were estimated using the Select method. Most suitable selectivity
models were calculated as log-normal for saddled seabream (O.
melanura) and annular seabream (D. annularis), bi-modal
for Mediterranean horse mackerel (T. meditterraneus) and
common two-banded seabream (D. vulgaris). Optimum catch
lengths for 20, 22, 23 and 25 mm mesh size were 11.15, 12.27, 12.83 ve 13.94 cm
for annular seabream (D. annularis), 11.26, 12.39, 12.95 and
14.08 cm for common two-banded seabream (D. vulgaris),
15.3, 16.83, 17.59 and 19.12 cm for saddled seabream (O. melanura)
and 26.68, 29.35, 30.68 and 33.35 cm for Mediterranean horse
mackerel (T. mediterraneus), respectively.
These findings may help us to understand that using higher than 23 mm stretched
mesh size with gillnets which have been used for commercial bogue fisheries
around north Aegean Sea is important for sustainability of fisheries.



Anahtar Kelimeler

Gillnet selectivity select method saddled seabream common two-banded seabream annular seabream mediterranean horse mackerel

Kaynakça

  • Ayaz, A., Altınağaç, U., Özekinci, U., Cengiz, Ö. & Öztekin A. (2010). Effects of hanging ratio on gillnet selectivity for annular sea bream (Diplodus annularis) in the northern Aegean Sea, Turkey. Journal of Animal and Veterinary Advances, 9(7):1137-1142.
  • Besiktepe, S., Sur, H.I., Ozsoy, E., Latif, M.A., Oguz, T. & Unluata, U. (1994). The Circulation and hydrography of the Marmara Sea. Prog Oceanog., 34: 285–334.
  • Cetinic, P., Soldo, A., Dulcic, J. & Pallaoro, A. (2002) Specific method of fishing for Sparidae species in the eastern Adriatic. Fisheries Research, 55: 131-139. doi:10.1016/S0165-7836(01)00299-5
  • Cucin D. & Regier, H.A. (1966). Dynamics and Exploitation of Lake Whitefish in Southern Georgian Bay. Journal of the Fisheries Research Board of Canada, 23(2): 221-274. doi:10.1139/f66-020
  • Erzini, K., Gonçalves, J.M.S., Bentes, L., Lino, P. G., Ribeiro, J. and Stergiou, K.I. (2003). Quantifying the roles of competing static gears: comparative selectivity of longlines and monofilament gill nets in a multi-species fishery of the Algarve (southern Portugal). Scientia Marina, 67(3): 341-352. doi:10.3989/scimar.2003.67n3341
  • Fischer, W. & Schneider, M. (1987) Fiches FAO d'identification des especes pour les besoins de la peche Meditterranee et Mer Noire. Vol. II. Zone de peche 37. Revision 1, 1529 p., Rome.
  • Froese, R. & Pauly, D. (2006) Fishbase. World Wide Web Electronic Publication URL: http:// www. fishbase.org.
  • Gonçalves, J.M.S., Bentes, L., Coelho, R., Correia, C., Lino, P.G., Monteiro, C.C., Ribeiro J. & Erzini, K. (2003) Age and growth, maturity, mortality and yield-per-recruit for two banded bream (Diplodus vulgaris Geoffr.) from the south coast of Portugal. Fisheries Research, 62: 349-359. doi: 10.1016/S0165-7836(02)00280-1
  • Kinacigil, H.T. & İlkyaz, A.T. (1997). Ege Denizi Balıkçılığı ve Sorunları. Ege Journal of Fisheries and Aquatic Sciences, 14: (3-4):351-367.
  • Kinacigil, H.T., İlkyaz, A.T., Metin, G., Ulaş, A., Soykan O., Akyol O. & Gurbet R. (2008). First reproductive length, age, and growth parameters of demersal fish stocks from fisheries management perspective in Aegean Sea (in Turkish). TUBITAK-ÇAYDAG Project No: 103Y132, 327.
  • Kolding, J. & Skålevik, Å. (2011) PasGear 2. A database package for experimental or artisanal fishery data. Version 2.5. available at http://www.imr.no/forskning/bistandsarbeid/nansis /pasgear2/en.
  • Kurkilahti, M., Appelberg, M., Hesthagen, T. & Rask, M. (2002). Effect of fish shape on gillnet selectivity: a study with Fulton’s condition factor. Fisheries research, 54:153-170. doi:10.1016/S0165-7836 (00)00301-5
  • Metin, C., Lök, A. & İlkyaz, T.A. (1998) Faklı Göz Genişliğine Sahip Dip Uzatma Ağlarında İsparoz (Diplodus annularis Linn., 1758) ve İzmarit (Spicara flexuosa Rafinesque, 1810) Balıklarının Seçiciliği. Ege Journal of Fisheries and Aquatic Sciences, 15(3-4): 293-303.
  • 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. & Holst, R. (1997) Estimation of gillnet and hook selectivity using log-linear models. Ices Journal of Marine Science, 54: 471-477. doi: 10.1006/jmsc.1996.0196
  • 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. doi: 10.1023/A:1008838220001
  • Santos, M.N., Monteiro, C.C., Erzini, K. & Lasserre, G. (1998) Maturation and gill-net selectivity of two small sea breams (genus Diplodus) from the Algarve coast (south Portugal). Fisheries Research, 36: 185-194. doi: 10.1016/S0165-7836(98)00100-3
  • Stergiou, I., K. & Erzini, K. (2002). Comparative fixed gear studies in the Cyclades (Aegean Sea): size selectivity of small-hook longlines and monofilament gill nets. Fisheries Research, 58: 25–40. doi: 10.1016/S0165-7836(01)00363-0
  • Şahin, C., Kasapoğlu, N., Gözler, M.A., Kalaycı, F., Hacımurtazaoğlu, N. & Mutlu C. (2009). Age, Growth, and Gonadosomatic Index (GSI) of Mediterranean Horse Mackerel (Trachurus mediterraneus Steindachner, 1868) in the Eastern Black Sea. Turk J Zool, 33 (2009) 157-167.
  • Trent L. & Pristas P.J. (1977). Selectivity of Gill Nets on Estuarine and Coastal Fishes from St. Andrew Bay, Florida. Fishery Bulletin, 75(1): 185-198.
  • TÜİK, (2005). Su Ürünleri İstatistikleri, http://www.tuik.gov.tr/PreTablo.do?alt_id=1005 [Erişim Tarihi, 05.10.2016].
  • Whitehead, P.J.P., Bauchot, M., Hureau, J.C., Nielsen, J. & Tortonese, E. (1986) Fishes of the north-eastern Atlantic and the Mediterranean, Volume I, II and III, Vol., UNESCO, Paris.

Kuzey Ege Denizi’nde kupes uzatma ağlarında hedef dışı av olarak yakalanan bazı balık türlerinin seçiciliği

Yıl 2017, Cilt: 34 Sayı: 1, 103 - 110, 21.02.2017

Gökhan Subakan Alkan Öztekin , İsmail Burak Daban , Adnan Ayaz

https://doi.org/10.12714/egejfas.2017.34.1.14
Cited By: 2

Öz



Bu çalışmada 20, 22, 23 ve 25 mm ağ göz genişliğine sahip kupes
uzatma ağlarından yakalanan Melanur (Oblada melanura), Karagöz
(Diplodus vulgaris), Isparoz (Diplodus annularis) ve
Sarıkuyruk İstavrit (Trachurus meditterraneus) türlerinin uzatma
ağı seçiciliği belirlenmiştir. Balikçilik denemeleri Mart 2008 - Şubat 2010
tarihleri arasinda Kuzey Ege Denizi’nde gerçekleştirilmiştir. Seçicilik
parametreleri SELECT metot kullanılarak tahmin edilmiştir. En uygun seçicilik
modelinin melanur (O. melanura) ve ısparoz (D. annularis) için
log-normal, sarıkuyruk istavrit (T. meditterraneus) ve karagöz (D.
vulgaris) için ise bi-modal olduğu belirlenmiştir. 20, 22, 23 ve 25 mm ağ
göz genişliğinde optimum yakalama boyları sırası ile Isparoz (D.
annularis) için 11.15, 12.27, 12.83 ve 13.94 cm, Karagöz (D.
vulgaris) için 11.26, 12.39, 12.95 ve 14.08 cm, Melanur (O.
melanura) için 15.3, 16.83, 17.59 ve 19.12 cm ve sarıkuyruk istavrit (T.
mediterraneus) için 26.68, 29.35, 30.68 ve 33.35 cm olarak tespit
edilmiştir. Bu sonuçlar Kuzey Ege Denizi’nde kupes avcılığında kullanılan
uzatma ağlarında 23 mm ağ gözü genişliğinden daha büyüğünün kullanımının
sürdürülebilir avcılık açısından önemli olduğunu ortaya çıkarmıştır.



Anahtar Kelimeler

Uzatma ağı seçiciliği select metodu melanur karagöz isparoz sarıkuyruk istavrit

Kaynakça

  • Ayaz, A., Altınağaç, U., Özekinci, U., Cengiz, Ö. & Öztekin A. (2010). Effects of hanging ratio on gillnet selectivity for annular sea bream (Diplodus annularis) in the northern Aegean Sea, Turkey. Journal of Animal and Veterinary Advances, 9(7):1137-1142.
  • Besiktepe, S., Sur, H.I., Ozsoy, E., Latif, M.A., Oguz, T. & Unluata, U. (1994). The Circulation and hydrography of the Marmara Sea. Prog Oceanog., 34: 285–334.
  • Cetinic, P., Soldo, A., Dulcic, J. & Pallaoro, A. (2002) Specific method of fishing for Sparidae species in the eastern Adriatic. Fisheries Research, 55: 131-139. doi:10.1016/S0165-7836(01)00299-5
  • Cucin D. & Regier, H.A. (1966). Dynamics and Exploitation of Lake Whitefish in Southern Georgian Bay. Journal of the Fisheries Research Board of Canada, 23(2): 221-274. doi:10.1139/f66-020
  • Erzini, K., Gonçalves, J.M.S., Bentes, L., Lino, P. G., Ribeiro, J. and Stergiou, K.I. (2003). Quantifying the roles of competing static gears: comparative selectivity of longlines and monofilament gill nets in a multi-species fishery of the Algarve (southern Portugal). Scientia Marina, 67(3): 341-352. doi:10.3989/scimar.2003.67n3341
  • Fischer, W. & Schneider, M. (1987) Fiches FAO d'identification des especes pour les besoins de la peche Meditterranee et Mer Noire. Vol. II. Zone de peche 37. Revision 1, 1529 p., Rome.
  • Froese, R. & Pauly, D. (2006) Fishbase. World Wide Web Electronic Publication URL: http:// www. fishbase.org.
  • Gonçalves, J.M.S., Bentes, L., Coelho, R., Correia, C., Lino, P.G., Monteiro, C.C., Ribeiro J. & Erzini, K. (2003) Age and growth, maturity, mortality and yield-per-recruit for two banded bream (Diplodus vulgaris Geoffr.) from the south coast of Portugal. Fisheries Research, 62: 349-359. doi: 10.1016/S0165-7836(02)00280-1
  • Kinacigil, H.T. & İlkyaz, A.T. (1997). Ege Denizi Balıkçılığı ve Sorunları. Ege Journal of Fisheries and Aquatic Sciences, 14: (3-4):351-367.
  • Kinacigil, H.T., İlkyaz, A.T., Metin, G., Ulaş, A., Soykan O., Akyol O. & Gurbet R. (2008). First reproductive length, age, and growth parameters of demersal fish stocks from fisheries management perspective in Aegean Sea (in Turkish). TUBITAK-ÇAYDAG Project No: 103Y132, 327.
  • Kolding, J. & Skålevik, Å. (2011) PasGear 2. A database package for experimental or artisanal fishery data. Version 2.5. available at http://www.imr.no/forskning/bistandsarbeid/nansis /pasgear2/en.
  • Kurkilahti, M., Appelberg, M., Hesthagen, T. & Rask, M. (2002). Effect of fish shape on gillnet selectivity: a study with Fulton’s condition factor. Fisheries research, 54:153-170. doi:10.1016/S0165-7836 (00)00301-5
  • Metin, C., Lök, A. & İlkyaz, T.A. (1998) Faklı Göz Genişliğine Sahip Dip Uzatma Ağlarında İsparoz (Diplodus annularis Linn., 1758) ve İzmarit (Spicara flexuosa Rafinesque, 1810) Balıklarının Seçiciliği. Ege Journal of Fisheries and Aquatic Sciences, 15(3-4): 293-303.
  • 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. & Holst, R. (1997) Estimation of gillnet and hook selectivity using log-linear models. Ices Journal of Marine Science, 54: 471-477. doi: 10.1006/jmsc.1996.0196
  • 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. doi: 10.1023/A:1008838220001
  • Santos, M.N., Monteiro, C.C., Erzini, K. & Lasserre, G. (1998) Maturation and gill-net selectivity of two small sea breams (genus Diplodus) from the Algarve coast (south Portugal). Fisheries Research, 36: 185-194. doi: 10.1016/S0165-7836(98)00100-3
  • Stergiou, I., K. & Erzini, K. (2002). Comparative fixed gear studies in the Cyclades (Aegean Sea): size selectivity of small-hook longlines and monofilament gill nets. Fisheries Research, 58: 25–40. doi: 10.1016/S0165-7836(01)00363-0
  • Şahin, C., Kasapoğlu, N., Gözler, M.A., Kalaycı, F., Hacımurtazaoğlu, N. & Mutlu C. (2009). Age, Growth, and Gonadosomatic Index (GSI) of Mediterranean Horse Mackerel (Trachurus mediterraneus Steindachner, 1868) in the Eastern Black Sea. Turk J Zool, 33 (2009) 157-167.
  • Trent L. & Pristas P.J. (1977). Selectivity of Gill Nets on Estuarine and Coastal Fishes from St. Andrew Bay, Florida. Fishery Bulletin, 75(1): 185-198.
  • TÜİK, (2005). Su Ürünleri İstatistikleri, http://www.tuik.gov.tr/PreTablo.do?alt_id=1005 [Erişim Tarihi, 05.10.2016].
  • Whitehead, P.J.P., Bauchot, M., Hureau, J.C., Nielsen, J. & Tortonese, E. (1986) Fishes of the north-eastern Atlantic and the Mediterranean, Volume I, II and III, Vol., UNESCO, Paris.
Toplam 22 adet kaynakça vardır.

Ayrıntılar

Bölüm Makaleler
Yazarlar

Gökhan Subakan

Alkan Öztekin

İsmail Burak Daban

Adnan Ayaz

Yayımlanma Tarihi 21 Şubat 2017
Gönderilme Tarihi 11 Ekim 2016
Yayımlandığı Sayı Yıl 2017 Cilt: 34 Sayı: 1

Kaynak Göster

APA Subakan, G., Öztekin, A., Daban, İ. B., Ayaz, A. (2017). Selectivity of some fish species caught as bycatch by bogue gillnets around North Aegean Sea. Ege Journal of Fisheries and Aquatic Sciences, 34(1), 103-110. https://doi.org/10.12714/egejfas.2017.34.1.14

Cited By

Age, growth and reproductive biology of the saddled seabream (Oblada melanura) in the North Aegean Sea, Eastern Mediterranean
Oceanological and Hydrobiological Studies
https://doi.org/10.1515/ohs-2020-0002
Sade Uzatma Ağları Avcılığında Bazı Balık Türlerinde Farklı Seçicilik Analiz Yöntemlerinin Seçicilik Parametrelerine Olası Etkileri
Çanakkale Onsekiz Mart University Journal of Marine Sciences and Fisheries
https://doi.org/10.46384/jmsf.1449175