Effects of the sea lice chemotherapeutant, emamectin benzoate, on metabolism and behaviour of the sea-pen Pennatula phosphorea.

Autor: Taormina B; Institute of Marine Research, Nordnesgaten 50, Bergen 5005, Norway. Electronic address: bastien.taormina@hi.no., Escobar-Lux RH; Institute of Marine Research, Austevoll Research Station, Sauganeset 16, Storebø 5392, Norway., Legrand E; Institute of Marine Research, Nordnesgaten 50, Bergen 5005, Norway., Parsons AE; Institute of Marine Research, Nordnesgaten 50, Bergen 5005, Norway., Kutti T; Institute of Marine Research, Nordnesgaten 50, Bergen 5005, Norway., Husa V; Institute of Marine Research, Nordnesgaten 50, Bergen 5005, Norway., Hannisdal R; Institute of Marine Research, Nordnesgaten 50, Bergen 5005, Norway., Samuelsen OB; Institute of Marine Research, Nordnesgaten 50, Bergen 5005, Norway., Agnalt AL; Institute of Marine Research, Nordnesgaten 50, Bergen 5005, Norway.
Jazyk: angličtina
Zdroj: Marine pollution bulletin [Mar Pollut Bull] 2024 Jan; Vol. 198, pp. 115903. Date of Electronic Publication: 2023 Dec 12.
DOI: 10.1016/j.marpolbul.2023.115903
Abstrakt: Chemotherapeutants used to control infestations by sea lice can be released into the marine environment surrounding aquaculture farms. Among these therapeutic agents, emamectin benzoate is extensively utilized even though its impact on non-target taxa has not been thoroughly examined. In this context, we explored the effects of emamectin benzoate on a common Norwegian habitat-forming species: the phosphorescent sea-pen Pennatula phosphorea. Specifically, we examined P. phosphorea metabolic and responses before, during and after exposure to emamectin benzoate. Results indicate that an 8-day emamectin benzoate exposure (0.8 mg/L) did not induce P. phosphorea mortality or significant behavioural or metabolic modifications. However, we highlighted the presence and persistence of emamectin benzoate in exposed P. phosphorea tissue. These results indicate that emamectin benzoate is unlikely to adversely impact P. phosphorea populations in the environment. However, persistence of emamectin benzoate in tissue constitutes a potential for bioaccumulation with repeated treatments and should be examined in further studies.
Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Bastien Taormina reports financial support was provided by Norwegian Ministry of Trade, Industry and Fisheries.
(Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.)
Databáze: MEDLINE
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