Abnormal Raja clavata (Rajidae) in the Aegean Sea: a Ghost Fishing Effect

The paper reports the capture of an abnormal specimen of Raja clavata Linnaeus, 1758 measuring 400 mm DW andweighing 987 g. This cartilaginous fish was caught from Çandarlı Bay (Izmir) by a commercial trawler. This specimen hasnose and tail deformities due to caught with a piece of trammel net (i.e. ghost fishing effect) and this phenomenon wasdiscussed and commented.

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Ayaz, A., Ünal, V., & Özekinci, U. (2004). An investigation on the determination of amount of lost set nets which cause ghost fishing in Izmir Bay. Ege Journal of Fisheries and Aquatic Sciences, 21, 35-38. [in Turkish].

Ayaz, A., Acarli, D., Altınagaç, U., Ozekinci, U., Kara, A., & Ozen, O. (2006). Ghost fishing by monofilament and multifilament gillnets in Izmir Bay, Turkey. Fisheries Research, 79, 267-271. doi:10.1016/j.fishres.2006.03.029.

Ayaz, A., Ünal, V., Acarlı, D., & Altınağaç, U. (2010). Fishing gear losses in the Gökova Special Environmental Protected Area (SEPA), eastern Mediterranean, Turkey. Journal of Applied Ichthyology, 26, 416-419. doi: 10.1111/j.1439- 0426.2009.01386.x

Demirhan, S.A., Engin, S., Seyhan, K., & Akamca, E. (2005). Some biological aspects of Thornback ray (Raja clavata L., 1758) in the southeastern Black Sea. Turkish Journal of Fisheries and Aquatic Sciences, 5(1), 75-83.

Eronat, E.G.T., & Özaydın, O. (2015). Diet composition of the Thornback Ray, Raja calavata Linnaeus, 1758 (Elasmobranchii: Rajidae) in the Turkish Aegean Sea. Zoology in the Middle East, 61(1), 38-44. doi: 10.1080/09397140.2014.994312.

FAO. (2016). Abandoned, lost or otherwise discarded gillnets and trammel nets: methods to estimate ghost fishing mortality, and the status of regional monitoring and management, by E. Gilman, F. Chopin, P. Suuronen and B. Kuemlangan. FAO Fisheries and Aquaculture Technical Paper No. 600. Rome. Italy.

Gülşahin, A., Filiz, H., & Bilge, G. (2015). Research on ghost fishing caused by small-scale fishing gears in inner part of Gökova Bay (Muğla, Turkey). Proceedings of 11th Panhellenic Symposium on Oceanography and Fisheries (pp. 189-191). Mytilene, Lesvos Island, Greece.

İlkyaz, A.T., Metin, G., Soykan, O., & Kınacıgil, H.T. (2008). Length-weight relationship of 62 fish species from the Central Aegean Sea, Turkey. Journal of Applied Ichthyology, 24, 699-702. doi: 10.1111/j.1439-0426.2008.01167.x

NOAA. (2015). Impact of “ghost fishing” via derelict fishing gear. NOAA Marine Debris Program Report. Silver Spring, MD. pp.1-25.
Turkish Journal of Fisheries and Aquatic Sciences-Cover
  • ISSN: 1303-2712
  • Yayın Aralığı: 12
  • Başlangıç: 2015
  • Yayıncı: Su Ürünleri Merkez Araştırma Enstitüsü - Trabzon
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