Research Article
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Year 2018, Volume: 1 Issue: 2, 49 - 56, 30.05.2018

Abstract

References

  • Anonymous, (1997) In implementation of the law No 7908, date 5.4.1995 “For fishing and aquaculture”, the Minister of Agriculture and food issues these regulations. No 1. Republic of Albania Ministry of Agriculture and Food General Directorate of Fishery, pp 44.
  • Anonymous, (2016) Notification 4/1. The commercial fish catching regulations in 2016-2020 fishing period (in Turkish). Republic of Turkey Ministry of Food, Agriculture and Livestock, General Directorate of Fisheries and Aquaculture, Ankara, pp. 112.
  • Ardizzone, G.D., Cataudella, S., Rossi, R. (1988). Management of coastal lagoon fisheries and aquaculture in Italy. FAO Fisheries Technical Paper No. 293. FAO, Rome, pp. 103.
  • Efanov, S.F., Istomin, I.G., Delmatov, A.A. (1987) Influence of the form of fish body and mesh on selective properties of trawls. ICES C.M. B:13, pp. 22.
  • Froese, R., Pauly, D. (eds.), (2017). FishBase. [Version 02/2017] www.fishbase.org
  • Gökçe, G., Tosunoğlu, Z. (2016) Lagoons along the Mediterranean coast of Turkey and lagoon fisheries (exploitation features), in: Turan, C., Salihoğlu, B., Özgür Özbek, E., Öztürk, B. (Eds.), The Turkish Part of the Mediterranean Sea; Marine Biodiversity, Fisheries, Conservation and Governance. Turkish Marine Research Foundation (TUDAV), Publication No. 43, İstanbul, Turkey, pp. 380-391.
  • Gökçe, G., Tokaç, A., Özbilgin, H., Atar, H.H., Ersoy, G., Dal, A., Saygu, İ., Öter, H.H. (2018) Determination of the openness of barrier trap in lagoon fishery (in Turkish). Republic of Turkey Ministry of Food, Agriculture and Livestock. Final Report of the Research-Innovation Support Program TAGEM/16/AR-GE/20 (unpublished).
  • Herrmann, B., Sistiaga, M., Larsen, R.B., Nielsen, K.N., Grimaldo, E. (2013a) Understanding sorting grid and codend size selectivity of Greenland halibut (Reinhardtius hippoglossoides). Fisheries Research 146: 59-73.
  • Herrmann, B., Sistiaga, M., Larsen, R.B., Nielsen, K.N. (2013b) Size selectivity of redfish (Sebastes spp.) in the Northeast Atlantic using grid-based selection systems for trawls. Aquatic Living Resources 26: 109-120.
  • Kapetsky, J.M. (1984) Coastal lagoon fisheries around the world: some perspectives on fishery yields, and other comparative fishery characteristics, in: Kapetsky, J.M., Lasserre, G. (Eds.), Management of coastal lagoon fisheries. FAO Studies and Reviews No. 61, Rome, Italy, pp 438.
  • Matsushita, Y., Ali, R. (1997) Investigation of trawl landings for the purpose of reducing the capture of non-target species and sizes of fish. Fisheries Research 29: 133-143.
  • Mendes, B., Fonseca, P., Campos, A. (2006) Relationships between opercula girth, maximum girth and total length of fish species caught in gillnet and trammel net selectivity surveys off the Portuguese coast. Journal of Applied Ichthyology 22: 209-213.
  • Moutopoulos, D.K., Dimitriou, N., Nystas, T., Koutsikopoulos, C. (2017) Length-girth relations of fishes from a Mediterranean lagoon system. Acta Ichthyologica et Piscatoria 47: 397-400.
  • Önem, R. (2014) Investigation of the relationships between bar spacing of barrier trap and fish body morphology of some fish species (in Turkish). Master of Science Thesis. Ege University Graduate School of Natural and Applied Sciences, Department of Fishing and Processing Technology, Bornova, İzmir, pp 54.
  • Stergiou, K.I., Erzini, K. (2002) Comparative fixed gear studies in the Cyclades (Aegean Sea): Size selectivity of small-hook longlines and monofilament gillnets. Fisheries Research 58: 25-40.
  • Tokaç, A., Herrmann, B., Gökçe, G., Krag, L.A., Nezhad, D.S., Lök, A., Kaykaç, H., Aydın, C., Ulaş, A. (2016) Understanding the size selectivity of red mullet (Mullus barbatus) in Mediterranean trawl codends: A study based on fish morphology. Fisheries Research 17: 81-93.
  • Tosunoğlu, Z., Doğanyılmaz, Y., Özbilgin, H. (2003a) Body shape and trawl codend selectivity for nine commercial fish species. Journal of the Marine Biological Association of the United Kingdom 83: 1309-1313.
  • Tosunoğlu, Z., Doğanyılmaz, Y., Özbilgin, H. (2003b) Determination of the appropriate hanging ratios to ease the escape of juvenile red mullet (Mullus barbatus L., 1758) and annular sea bream (Diplodus annularis L., 1758) from trawl codend. Turkish Journal of Veterinary and Animal Sciences 27: 1193-1199.
  • Tosunoğlu, Z., Ünal, V., Kaykaç, M.H. (2017a) Aegean Coastal Lagoons (in Turkish). SÜR-KOOP, Central Union of Fishery Cooperative Associations, Publication No. 03, ISBN 978-605-60880-2-5, Ankara, pp. 322.
  • Tosunoğlu, Z., Kaykaç, M.H., Ünal, V. (2017b) Temporal alterations of fishery landings in coastal lagoons along the Aegean coast of Turkey. Turkish Journal of Fisheries and Aquatic Sciences 17: 1441-1448.
  • Zar J.H. (1999) Biostatistical analysis. 4th edition. Prentice- Hall, Upper Saddle River, NJ, USA.

Fish Morphology and Barrier Trap Bar Spacing in Lagoon Fisheries along the Aegean Coast of Turkey

Year 2018, Volume: 1 Issue: 2, 49 - 56, 30.05.2018

Abstract

The most important fishing rule implemented in Turkish
lagoon fishery is distance between the reeds (stick) of the barrier traps
should not be less than 3 cm. Based on this arrangement, usually 3 cm bar
spacing reeds and sometimes 3 cm square mesh wires are used in lagoon barrier
traps. The body shape of fish may be the most important factor necessary to
understand the consequences of changes in barrier trap selectivity. For this
reason, data were collected to determine the relevant dimensions of fish body
in relation to openness of a barrier trap of coastal lagoons along the Aegean
coast of Turkey in 2013. As Minimum Landing Size (MLS) was built on Total
Length (TL) basis, regression analyses were carried out to find out the
relationships between the TL and the other measured dimensions (width and
height) of the fish using least-square regression. Morphometric measurements of
fish species caught in barrier traps show a great variation. While all Common sole
individuals pass from the 3 distance with its width, all Flathead grey mullet
and European sea bass individuals retained behind the sticks of the barrier
trap. All Gilthead sea bream individuals under 25 cm TL pass the distance.
However, many Golden grey mullet and European eel individuals retain at the
barrier traps with theirs width. The implemented 3 cm bar spacing in
Turkish lagoon barrier traps is thought to be suitable only for sea bass with a
1% reduction. However, the bar spacing is not suitable for Sea bream, Common
sole, European eel due to commercial loss and for Flat head grey mullet and
Golden grey mullet capturing small individuals below their MLS. For this
reason, a graded barrier system with different bar spaces or regulation
according to the biology of the fish species and migration seasons can benefit
sustainable lagoon fishery. In this respect, the continuously changing distance
paradox in barrier traps will be overtaken in Turkey.

References

  • Anonymous, (1997) In implementation of the law No 7908, date 5.4.1995 “For fishing and aquaculture”, the Minister of Agriculture and food issues these regulations. No 1. Republic of Albania Ministry of Agriculture and Food General Directorate of Fishery, pp 44.
  • Anonymous, (2016) Notification 4/1. The commercial fish catching regulations in 2016-2020 fishing period (in Turkish). Republic of Turkey Ministry of Food, Agriculture and Livestock, General Directorate of Fisheries and Aquaculture, Ankara, pp. 112.
  • Ardizzone, G.D., Cataudella, S., Rossi, R. (1988). Management of coastal lagoon fisheries and aquaculture in Italy. FAO Fisheries Technical Paper No. 293. FAO, Rome, pp. 103.
  • Efanov, S.F., Istomin, I.G., Delmatov, A.A. (1987) Influence of the form of fish body and mesh on selective properties of trawls. ICES C.M. B:13, pp. 22.
  • Froese, R., Pauly, D. (eds.), (2017). FishBase. [Version 02/2017] www.fishbase.org
  • Gökçe, G., Tosunoğlu, Z. (2016) Lagoons along the Mediterranean coast of Turkey and lagoon fisheries (exploitation features), in: Turan, C., Salihoğlu, B., Özgür Özbek, E., Öztürk, B. (Eds.), The Turkish Part of the Mediterranean Sea; Marine Biodiversity, Fisheries, Conservation and Governance. Turkish Marine Research Foundation (TUDAV), Publication No. 43, İstanbul, Turkey, pp. 380-391.
  • Gökçe, G., Tokaç, A., Özbilgin, H., Atar, H.H., Ersoy, G., Dal, A., Saygu, İ., Öter, H.H. (2018) Determination of the openness of barrier trap in lagoon fishery (in Turkish). Republic of Turkey Ministry of Food, Agriculture and Livestock. Final Report of the Research-Innovation Support Program TAGEM/16/AR-GE/20 (unpublished).
  • Herrmann, B., Sistiaga, M., Larsen, R.B., Nielsen, K.N., Grimaldo, E. (2013a) Understanding sorting grid and codend size selectivity of Greenland halibut (Reinhardtius hippoglossoides). Fisheries Research 146: 59-73.
  • Herrmann, B., Sistiaga, M., Larsen, R.B., Nielsen, K.N. (2013b) Size selectivity of redfish (Sebastes spp.) in the Northeast Atlantic using grid-based selection systems for trawls. Aquatic Living Resources 26: 109-120.
  • Kapetsky, J.M. (1984) Coastal lagoon fisheries around the world: some perspectives on fishery yields, and other comparative fishery characteristics, in: Kapetsky, J.M., Lasserre, G. (Eds.), Management of coastal lagoon fisheries. FAO Studies and Reviews No. 61, Rome, Italy, pp 438.
  • Matsushita, Y., Ali, R. (1997) Investigation of trawl landings for the purpose of reducing the capture of non-target species and sizes of fish. Fisheries Research 29: 133-143.
  • Mendes, B., Fonseca, P., Campos, A. (2006) Relationships between opercula girth, maximum girth and total length of fish species caught in gillnet and trammel net selectivity surveys off the Portuguese coast. Journal of Applied Ichthyology 22: 209-213.
  • Moutopoulos, D.K., Dimitriou, N., Nystas, T., Koutsikopoulos, C. (2017) Length-girth relations of fishes from a Mediterranean lagoon system. Acta Ichthyologica et Piscatoria 47: 397-400.
  • Önem, R. (2014) Investigation of the relationships between bar spacing of barrier trap and fish body morphology of some fish species (in Turkish). Master of Science Thesis. Ege University Graduate School of Natural and Applied Sciences, Department of Fishing and Processing Technology, Bornova, İzmir, pp 54.
  • Stergiou, K.I., Erzini, K. (2002) Comparative fixed gear studies in the Cyclades (Aegean Sea): Size selectivity of small-hook longlines and monofilament gillnets. Fisheries Research 58: 25-40.
  • Tokaç, A., Herrmann, B., Gökçe, G., Krag, L.A., Nezhad, D.S., Lök, A., Kaykaç, H., Aydın, C., Ulaş, A. (2016) Understanding the size selectivity of red mullet (Mullus barbatus) in Mediterranean trawl codends: A study based on fish morphology. Fisheries Research 17: 81-93.
  • Tosunoğlu, Z., Doğanyılmaz, Y., Özbilgin, H. (2003a) Body shape and trawl codend selectivity for nine commercial fish species. Journal of the Marine Biological Association of the United Kingdom 83: 1309-1313.
  • Tosunoğlu, Z., Doğanyılmaz, Y., Özbilgin, H. (2003b) Determination of the appropriate hanging ratios to ease the escape of juvenile red mullet (Mullus barbatus L., 1758) and annular sea bream (Diplodus annularis L., 1758) from trawl codend. Turkish Journal of Veterinary and Animal Sciences 27: 1193-1199.
  • Tosunoğlu, Z., Ünal, V., Kaykaç, M.H. (2017a) Aegean Coastal Lagoons (in Turkish). SÜR-KOOP, Central Union of Fishery Cooperative Associations, Publication No. 03, ISBN 978-605-60880-2-5, Ankara, pp. 322.
  • Tosunoğlu, Z., Kaykaç, M.H., Ünal, V. (2017b) Temporal alterations of fishery landings in coastal lagoons along the Aegean coast of Turkey. Turkish Journal of Fisheries and Aquatic Sciences 17: 1441-1448.
  • Zar J.H. (1999) Biostatistical analysis. 4th edition. Prentice- Hall, Upper Saddle River, NJ, USA.
There are 21 citations in total.

Details

Primary Language English
Subjects Hydrobiology
Journal Section Research Articles
Authors

Zafer Tosunoğlu

Ravda Önem Karakuzu This is me

Gökhan Gökçe 0000-0003-1830-0733

M. Hakan Kaykaç

Publication Date May 30, 2018
Submission Date March 28, 2018
Published in Issue Year 2018 Volume: 1 Issue: 2

Cite

APA Tosunoğlu, Z., Karakuzu, R. Ö., Gökçe, G., Kaykaç, M. H. (2018). Fish Morphology and Barrier Trap Bar Spacing in Lagoon Fisheries along the Aegean Coast of Turkey. Mediterranean Fisheries and Aquaculture Research, 1(2), 49-56. https://doi.org//medfar.v1i37150.410487

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