Effects of the sea lice bath treatment pharmaceuticals hydrogen peroxide, azamethiphos and deltamethrin on egg-carrying shrimp (Pandalus borealis).

Autor: Frantzen M; Akvaplan-niva, Fram Centre, 9296, Tromsø, Norway. Electronic address: mfr@akvaplan.niva.no., Bytingsvik J; Akvaplan-niva, Fram Centre, 9296, Tromsø, Norway. Electronic address: jby@akvaplan.niva.no., Tassara L; Akvaplan-niva, Fram Centre, 9296, Tromsø, Norway. Electronic address: lut@akvaplan.niva.no., Reinardy HC; The Scottish Association for Marine Science, Scottish Marine Institute, Oban, Argyll, PA37 1QA, UK; UNIS, The University Centre in Svalbard, Longyearbyen, 9171, Svalbard, Norway. Electronic address: Helena.Reinardy@sams.ac.uk., Refseth GH; Akvaplan-niva, Fram Centre, 9296, Tromsø, Norway. Electronic address: ghr@akvaplan.niva.no., Watts EJ; Akvaplan-niva, Fram Centre, 9296, Tromsø, Norway. Electronic address: ejw@akvaplan.niva.no., Evenset A; Akvaplan-niva, Fram Centre, 9296, Tromsø, Norway; UiT, The Arctic University of Norway. Faculty of Biosciences, Fisheries and Economics, 037, Tromsø, Norway. Electronic address: aev@akvaplan.niva.no.
Jazyk: angličtina
Zdroj: Marine environmental research [Mar Environ Res] 2020 Jul; Vol. 159, pp. 105007. Date of Electronic Publication: 2020 May 16.
DOI: 10.1016/j.marenvres.2020.105007
Abstrakt: This study investigated effects of sea lice pharmaceuticals on egg-bearing deep-water shrimp (Pandalus borealis). Both mortality and sub-lethal effects (behavior, embryo development, and reproductive output) were studied for each of three pharmaceuticals alone and in different sequential combinations. The most severe effect was observed for deltamethrin where 2 h exposure to 330 times diluted treatment dose (alone and in sequential application with hydrogen peroxide and azamethiphos) induced almost 100% mortality within a few days after exposure. Similar effects were not observed for hydrogen peroxide or azamethiphos. However, sequential treatment of hydrogen peroxide and azamethiphos (2 h exposure to each pharmaceutical; 500 times dilution) resulted in >40% mortality during the first week following treatment. No sub-lethal effects or loss of eggs in female shrimp could be related to exposure to the bath treatments. Future studies should investigate potential sub-lethal effects at exposure concentrations close to the no-effect concentration.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2020 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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