Research Article
BibTex RIS Cite

Assessing the Status and Management of European Eel, Anguilla anguilla (Linnaeus 1758) Fisheries in Türkiye: Trends, Challenges, and Conservation Strategies (2019–2023)

Year 2024, Volume: 6 Issue: 2, 58 - 63
https://doi.org/10.51756/marlife.1540493

Abstract

The European eel, Anguilla anguilla (Linnaeus 1758) is a species of critical ecological importance, facing significant population declines due to anthropogenic pressures such as habitat degradation, migration barriers, pollution, overfishing, and climate change. This study investigates the status of European eel fisheries in Türkiye from 2019 to 2023, focusing on the implications of local management practices and environmental changes on eel populations. Utilizing official catch data from the Turkish Statistical Institute, the study analyses trends across three Eel Management Areas (EMAs) in Türkiye. The results reveal a significant decline in eel catches in EMA-1, suggesting urgent conservation needs, while EMA-2 and EMA-3 exhibit relative stability, potentially reflecting effective local management practices and habitat suitability. The results underscore the necessity for region-specific management strategies that consider ecological, environmental, and socio-economic factors. This research contributes to the development of informed management strategies aimed at ensuring the sustainability of European eel fisheries in Türkiye, aligning with international conservation efforts.

References

  • Bilotta, G., Sibley, P., Hateley, J., & Don, A. (2011). The decline of the European eel Anguilla anguilla: Quantifying and managing escapement to support conservation. Journal of Fish Biology, 78, 23-38. https://doi.org/10.1111/j.1095-8649.2010.02830.x
  • Chen, Q., Li, Q., Lin, Y., Zhang, J., Xia, J., Ni, J., Cooke, S. J., Best, J., He, S., Feng, T., Chen, Y., Tonina, D., Benjankar, R., Birk, S., Fleischmann, A. S., Yan, H., & Tang, L. (2023). River damming impacts on fish habitat and associated conservation measures. Reviews of Geophysics, 61(4), e2023RG000819. https://doi.org/10.1029/2023RG000819
  • Cresci, A. (2020). A comprehensive hypothesis on the migration of European glass eels (Anguilla anguilla). Biological Reviews, 95(5), 1273-1286. https://doi.org/10.1111/brv.12609
  • Dekker, W. (2003). Worldwide decline of eel resources necessitates immediate action: Quebec Declaration of Concern. Fisheries 28 (2003) 12.
  • Dekker, W. (2016). Management of the eel is slipping through our hands! Distribute control and orchestrate national protection. ICES Journal of Marine Science, 73(10), 2442-2452. https://doi.org/10.1093/icesjms/fsw094
  • Denis, J., Lepage, M., Gruselle, M.-C., & Amara, R. (2024). The influence of natural and anthropogenic environmental pressures on European eel abundances in French estuaries. Fishes, 9(2), 44. https://doi.org/10.3390/fishes9020044
  • Drouineau, H., Durif, C., Castonguay, M., Mateo, M., Rochard, E., Verreault, G., Yokouchi, K., & Lambert, P. (2018). Freshwater eels: A symbol of the effects of global change. Fish and Fisheries, 19(5), 903-930. https://doi.org/10.1111/faf.12300
  • Gurkan, S., Taskavak, E., & Taylan, B. (2024). A preliminary study on the morphometric features of the European eel, Anguilla anguilla (Anguillidae) in Gediz Lagoon (Izmir Bay, the Aegean Sea): Special emphasis to sexual dimorphism. Journal of Ichthyology, 64(1), 37-44. https://doi.org/10.1134/s0032945224010120
  • ICES. (2023). European eel (Anguilla anguilla) throughout its natural range. In Report of the ICES Advisory Committee, 2023. ICES Advice 2023, ele.2737.nea, https://doi.org/10.17895/ices.advice.21907860
  • ICES. (2024). European eel (Anguilla anguilla) throughout its natural range. Retrieved on September 16, 2024, from https://ices-library.figshare.com/articles/report/European_eel_i_Anguilla_anguilla_i_throughout_its_natural_range/21907860
  • Órfão, I., Álvarez, S., Ramalhosa, P., González, C., Vieira, C., Almeida, S., Parretti, P., Freitas, R., Radeta, M., Monteiro, R., Rocha, R., Domingos, I., & Canning-Clode, J. (2024). Searching for the critically endangered European eel in oceanic islands: A pioneer study in the freshwater systems of Madeira, Macaronesia. Aquatic Conservation: Marine and Freshwater Ecosystems, 34(2), e4106. https://doi.org/10.1002/aqc.4106
  • Özdilek, S. Y., & Özdilek, H. G. (2020). Assessment of the annual European eel (Anguilla anguilla Linnaeus, 1758) catches in three suggested major monitoring areas to support the development of eel fishery management system in Turkey. Journal of Applied Ichthyology, 36(6), 924-931. https://doi.org/10.1111/jai.14136
  • Pike, C., Crook, V., & Gollock, M. (2020). Anguilla anguilla. The IUCN Red List of Threatened Species 2020: e.T60344A152845178, Retrieved on September 16, 2024, from https://doi.org/10.2305/IUCN.UK.2020-2.RLTS.T60344A152845178.en
  • Podda, C., Palmas, F., Pusceddu, A., & Sabatini, A. (2022). When the eel meets dams: Larger dams’ long-term impacts on Anguilla anguilla (L., 1758). Frontiers in Environmental Science, 10, 876369. https://doi.org/10.3389/fenvs.2022.876369
  • Righton, D., Westerberg, H., Feunteun, E., Økland, F., Gargan, P., Amilhat, E., Metcalfe, J., Lobon-Cervia, J., Sjöberg, N., Simon, J., Acou, A., Vedor, M., Walker, A., Trancart, T., Brämick, U., & Aarestrup, K. (2016). Empirical observations of the spawning migration of European eels: The long and dangerous road to the Sargasso Sea. Science Advances, 2(10), e1501694. https://doi.org/10.1126/sciadv.1501694
  • Kielman-Schmitt, M., Kooijman, E., Vaino, V., Eschbaum, R., Saks, L., Verliin, A., & Vetemaa, M. (2020). Conservation restocking of the imperilled European eel does not necessarily equal conservation. ICES Journal of Marine Science, 78(1), 101-111. https://doi.org/10.1093/icesjms/fsaa196
  • van Ginneken, V., Antonissen, E., Müller, U. K., Booms, R., Eding, E., Verreth, J., & van den Thillart, G. (2005). Eel migration to the Sargasso: Remarkably high swimming efficiency and low energy costs. Journal of Experimental Biology, 208(7), 1329-1335. https://doi.org/10.1242/jeb.01524
  • Violi, L., Falcone, G., De Luca, A., & Chies, L. (2015). Sustainability of European eel population: A statistical survey on production, conservation status and market trends. Calitatea, 16(148), 83-90.
  • Yalcin Ozdilek, S., Gumus, A., & Dekker, W. (2006). Growth of European eel in a Turkish river at the south-eastern limit of its distribution. Electronic Journal of Ichthyology, 2, 55-64.

Assessing the Status and Management of European Eel, Anguilla anguilla (Linnaeus 1758) Fisheries in Türkiye: Trends, Challenges, and Conservation Strategies (2019–2023)

Year 2024, Volume: 6 Issue: 2, 58 - 63
https://doi.org/10.51756/marlife.1540493

Abstract

The European eel, Anguilla anguilla (Linnaeus 1758) is a species of critical ecological importance, facing significant population declines due to anthropogenic pressures such as habitat degradation, migration barriers, pollution, overfishing, and climate change. This study investigates the status of European eel fisheries in Türkiye from 2019 to 2023, focusing on the implications of local management practices and environmental changes on eel populations. Utilizing official catch data from the Turkish Statistical Institute, the study analyses trends across three Eel Management Areas (EMAs) in Türkiye. The results reveal a significant decline in eel catches in EMA-1, suggesting urgent conservation needs, while EMA-2 and EMA-3 exhibit relative stability, potentially reflecting effective local management practices and habitat suitability. The results underscore the necessity for region-specific management strategies that consider ecological, environmental, and socio-economic factors. This research contributes to the development of informed management strategies aimed at ensuring the sustainability of European eel fisheries in Türkiye, aligning with international conservation efforts.

References

  • Bilotta, G., Sibley, P., Hateley, J., & Don, A. (2011). The decline of the European eel Anguilla anguilla: Quantifying and managing escapement to support conservation. Journal of Fish Biology, 78, 23-38. https://doi.org/10.1111/j.1095-8649.2010.02830.x
  • Chen, Q., Li, Q., Lin, Y., Zhang, J., Xia, J., Ni, J., Cooke, S. J., Best, J., He, S., Feng, T., Chen, Y., Tonina, D., Benjankar, R., Birk, S., Fleischmann, A. S., Yan, H., & Tang, L. (2023). River damming impacts on fish habitat and associated conservation measures. Reviews of Geophysics, 61(4), e2023RG000819. https://doi.org/10.1029/2023RG000819
  • Cresci, A. (2020). A comprehensive hypothesis on the migration of European glass eels (Anguilla anguilla). Biological Reviews, 95(5), 1273-1286. https://doi.org/10.1111/brv.12609
  • Dekker, W. (2003). Worldwide decline of eel resources necessitates immediate action: Quebec Declaration of Concern. Fisheries 28 (2003) 12.
  • Dekker, W. (2016). Management of the eel is slipping through our hands! Distribute control and orchestrate national protection. ICES Journal of Marine Science, 73(10), 2442-2452. https://doi.org/10.1093/icesjms/fsw094
  • Denis, J., Lepage, M., Gruselle, M.-C., & Amara, R. (2024). The influence of natural and anthropogenic environmental pressures on European eel abundances in French estuaries. Fishes, 9(2), 44. https://doi.org/10.3390/fishes9020044
  • Drouineau, H., Durif, C., Castonguay, M., Mateo, M., Rochard, E., Verreault, G., Yokouchi, K., & Lambert, P. (2018). Freshwater eels: A symbol of the effects of global change. Fish and Fisheries, 19(5), 903-930. https://doi.org/10.1111/faf.12300
  • Gurkan, S., Taskavak, E., & Taylan, B. (2024). A preliminary study on the morphometric features of the European eel, Anguilla anguilla (Anguillidae) in Gediz Lagoon (Izmir Bay, the Aegean Sea): Special emphasis to sexual dimorphism. Journal of Ichthyology, 64(1), 37-44. https://doi.org/10.1134/s0032945224010120
  • ICES. (2023). European eel (Anguilla anguilla) throughout its natural range. In Report of the ICES Advisory Committee, 2023. ICES Advice 2023, ele.2737.nea, https://doi.org/10.17895/ices.advice.21907860
  • ICES. (2024). European eel (Anguilla anguilla) throughout its natural range. Retrieved on September 16, 2024, from https://ices-library.figshare.com/articles/report/European_eel_i_Anguilla_anguilla_i_throughout_its_natural_range/21907860
  • Órfão, I., Álvarez, S., Ramalhosa, P., González, C., Vieira, C., Almeida, S., Parretti, P., Freitas, R., Radeta, M., Monteiro, R., Rocha, R., Domingos, I., & Canning-Clode, J. (2024). Searching for the critically endangered European eel in oceanic islands: A pioneer study in the freshwater systems of Madeira, Macaronesia. Aquatic Conservation: Marine and Freshwater Ecosystems, 34(2), e4106. https://doi.org/10.1002/aqc.4106
  • Özdilek, S. Y., & Özdilek, H. G. (2020). Assessment of the annual European eel (Anguilla anguilla Linnaeus, 1758) catches in three suggested major monitoring areas to support the development of eel fishery management system in Turkey. Journal of Applied Ichthyology, 36(6), 924-931. https://doi.org/10.1111/jai.14136
  • Pike, C., Crook, V., & Gollock, M. (2020). Anguilla anguilla. The IUCN Red List of Threatened Species 2020: e.T60344A152845178, Retrieved on September 16, 2024, from https://doi.org/10.2305/IUCN.UK.2020-2.RLTS.T60344A152845178.en
  • Podda, C., Palmas, F., Pusceddu, A., & Sabatini, A. (2022). When the eel meets dams: Larger dams’ long-term impacts on Anguilla anguilla (L., 1758). Frontiers in Environmental Science, 10, 876369. https://doi.org/10.3389/fenvs.2022.876369
  • Righton, D., Westerberg, H., Feunteun, E., Økland, F., Gargan, P., Amilhat, E., Metcalfe, J., Lobon-Cervia, J., Sjöberg, N., Simon, J., Acou, A., Vedor, M., Walker, A., Trancart, T., Brämick, U., & Aarestrup, K. (2016). Empirical observations of the spawning migration of European eels: The long and dangerous road to the Sargasso Sea. Science Advances, 2(10), e1501694. https://doi.org/10.1126/sciadv.1501694
  • Kielman-Schmitt, M., Kooijman, E., Vaino, V., Eschbaum, R., Saks, L., Verliin, A., & Vetemaa, M. (2020). Conservation restocking of the imperilled European eel does not necessarily equal conservation. ICES Journal of Marine Science, 78(1), 101-111. https://doi.org/10.1093/icesjms/fsaa196
  • van Ginneken, V., Antonissen, E., Müller, U. K., Booms, R., Eding, E., Verreth, J., & van den Thillart, G. (2005). Eel migration to the Sargasso: Remarkably high swimming efficiency and low energy costs. Journal of Experimental Biology, 208(7), 1329-1335. https://doi.org/10.1242/jeb.01524
  • Violi, L., Falcone, G., De Luca, A., & Chies, L. (2015). Sustainability of European eel population: A statistical survey on production, conservation status and market trends. Calitatea, 16(148), 83-90.
  • Yalcin Ozdilek, S., Gumus, A., & Dekker, W. (2006). Growth of European eel in a Turkish river at the south-eastern limit of its distribution. Electronic Journal of Ichthyology, 2, 55-64.
There are 19 citations in total.

Details

Primary Language English
Subjects Fisheries Management
Journal Section Research Articles
Authors

Aytaç Altın 0000-0002-0327-6665

Hakan Ayyıldız 0000-0002-6442-0421

Early Pub Date December 16, 2024
Publication Date
Submission Date August 29, 2024
Acceptance Date September 24, 2024
Published in Issue Year 2024 Volume: 6 Issue: 2

Cite

APA Altın, A., & Ayyıldız, H. (2024). Assessing the Status and Management of European Eel, Anguilla anguilla (Linnaeus 1758) Fisheries in Türkiye: Trends, Challenges, and Conservation Strategies (2019–2023). Marine and Life Sciences, 6(2), 58-63. https://doi.org/10.51756/marlife.1540493

Flag Counter