An in-depth study of the biology, trophic ecology and catchability of the invasive pufferfish Lagocephalus sceleratus from southern Turkey, eastern Mediterranean Sea
The silver-cheeked toadfish (Lagocephalus sceleratus) is an invasive species of highest concern. Its population must be controlled to mitigate its negative impacts on marine ecosystems, fishers, fisheries and human health. This study thoroughly investigates the biology, diet and catchability of the...
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| Format: | Article |
| Language: | English |
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Consejo Superior de Investigaciones Científicas
2023-12-01
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| Series: | Scientia Marina |
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| Online Access: | https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1972 |
| _version_ | 1797383222771843072 |
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| author | Hasan Ersönmez Caner Enver Özyurt Sinan Mavruk Taner Yıldız Aylin Ulman |
| author_facet | Hasan Ersönmez Caner Enver Özyurt Sinan Mavruk Taner Yıldız Aylin Ulman |
| author_sort | Hasan Ersönmez |
| collection | DOAJ |
| description |
The silver-cheeked toadfish (Lagocephalus sceleratus) is an invasive species of highest concern. Its population must be controlled to mitigate its negative impacts on marine ecosystems, fishers, fisheries and human health. This study thoroughly investigates the biology, diet and catchability of the L. sceleratus stock from Finike, Turkey from March 2017 to February 2018 in order to better manage its invasion. A total of 751 specimens were sampled for this study with a M/F ratio of 1.25/1. The species becomes sexually mature at three and a half years of age, and Lm50 was 41.39 cm for males and 42.08 cm for females. Its spawning season in this region was from June to August, peaking in July. Its diet was mostly crustaceans in spring, fish in summer and both fish and crustaceans in winter. This species consumed a large amount of other pufferfish species, resulting in over a quarter of its fish diet. The trophic level of L. sceleratus was 4.41, demonstrating that it is indeed a top predator carnivore in the eastern Mediterranean Sea. Ingested fishing gear parts such as net pieces and hooks were found in about 10% of the fish. A slight modification of longlines using steel branch lines and a swivel hook resulted in double the catch per unit effort than standard longlines, so this technique can be used to target and control more of this invasive species, which is a national priority.
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| first_indexed | 2024-03-08T21:17:47Z |
| format | Article |
| id | doaj.art-cb0a108811ce42b29ec2e811e77d113d |
| institution | Directory Open Access Journal |
| issn | 0214-8358 1886-8134 |
| language | English |
| last_indexed | 2024-03-08T21:17:47Z |
| publishDate | 2023-12-01 |
| publisher | Consejo Superior de Investigaciones Científicas |
| record_format | Article |
| series | Scientia Marina |
| spelling | doaj.art-cb0a108811ce42b29ec2e811e77d113d2023-12-21T14:31:24ZengConsejo Superior de Investigaciones CientíficasScientia Marina0214-83581886-81342023-12-0187410.3989/scimar.05351.075An in-depth study of the biology, trophic ecology and catchability of the invasive pufferfish Lagocephalus sceleratus from southern Turkey, eastern Mediterranean SeaHasan Ersönmez0Caner Enver Özyurt1Sinan Mavruk2Taner Yıldız3Aylin Ulman4Cukurova University, Fisheries FacultyCukurova University, Fisheries FacultyCukurova University, Fisheries FacultyDepartment of Fisheries Technology and Management, Faculty of Aquatic Sciences, Istanbul UniversityMersea Marine Consulting The silver-cheeked toadfish (Lagocephalus sceleratus) is an invasive species of highest concern. Its population must be controlled to mitigate its negative impacts on marine ecosystems, fishers, fisheries and human health. This study thoroughly investigates the biology, diet and catchability of the L. sceleratus stock from Finike, Turkey from March 2017 to February 2018 in order to better manage its invasion. A total of 751 specimens were sampled for this study with a M/F ratio of 1.25/1. The species becomes sexually mature at three and a half years of age, and Lm50 was 41.39 cm for males and 42.08 cm for females. Its spawning season in this region was from June to August, peaking in July. Its diet was mostly crustaceans in spring, fish in summer and both fish and crustaceans in winter. This species consumed a large amount of other pufferfish species, resulting in over a quarter of its fish diet. The trophic level of L. sceleratus was 4.41, demonstrating that it is indeed a top predator carnivore in the eastern Mediterranean Sea. Ingested fishing gear parts such as net pieces and hooks were found in about 10% of the fish. A slight modification of longlines using steel branch lines and a swivel hook resulted in double the catch per unit effort than standard longlines, so this technique can be used to target and control more of this invasive species, which is a national priority. https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1972non-indigenous species (NIS)pufferfishcatch per unit effort (CPUE)ageingstomach content analysistrophic level |
| spellingShingle | Hasan Ersönmez Caner Enver Özyurt Sinan Mavruk Taner Yıldız Aylin Ulman An in-depth study of the biology, trophic ecology and catchability of the invasive pufferfish Lagocephalus sceleratus from southern Turkey, eastern Mediterranean Sea Scientia Marina non-indigenous species (NIS) pufferfish catch per unit effort (CPUE) ageing stomach content analysis trophic level |
| title | An in-depth study of the biology, trophic ecology and catchability of the invasive pufferfish Lagocephalus sceleratus from southern Turkey, eastern Mediterranean Sea |
| title_full | An in-depth study of the biology, trophic ecology and catchability of the invasive pufferfish Lagocephalus sceleratus from southern Turkey, eastern Mediterranean Sea |
| title_fullStr | An in-depth study of the biology, trophic ecology and catchability of the invasive pufferfish Lagocephalus sceleratus from southern Turkey, eastern Mediterranean Sea |
| title_full_unstemmed | An in-depth study of the biology, trophic ecology and catchability of the invasive pufferfish Lagocephalus sceleratus from southern Turkey, eastern Mediterranean Sea |
| title_short | An in-depth study of the biology, trophic ecology and catchability of the invasive pufferfish Lagocephalus sceleratus from southern Turkey, eastern Mediterranean Sea |
| title_sort | in depth study of the biology trophic ecology and catchability of the invasive pufferfish lagocephalus sceleratus from southern turkey eastern mediterranean sea |
| topic | non-indigenous species (NIS) pufferfish catch per unit effort (CPUE) ageing stomach content analysis trophic level |
| url | https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1972 |
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