Akademik Veri Yönetim Sistemi
Scientia Marina, cilt.87, sa.4, ss.1-13, 2023 (SCI-Expanded)
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