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Seal-induced losses and successful mitigation using Acoustic Harassment Devices in Estonian Baltic trap-net fisheries

Vetemaa, Markus and Paadam, Ulvi and Fjälling, Arne and Rohtla, Mehis and Svirgsden, Roland and Taal, Imre and Verliin, Aare and Eschbaum, Redik and Saks, Lauri (2021). Seal-induced losses and successful mitigation using Acoustic Harassment Devices in Estonian Baltic trap-net fisheries. Proceedings of the Estonian Academy of Sciences. 70 , 207-214
[Research article]

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Abstract

During the last decades the number of grey seals Halichoerus grypus has increased more than tenfold in the Baltic Sea. having reached 38 000 in 2019, which has created increasing problems to the coastal fisheries. In the current study, 151 Estonian coastal fishermen were interviewed to sum all direct and indirect monetary losses. The total cost of the damage caused by seals to the Estonian fisheries was around 0.9 million euros in 2009. With the aim of mitigating seal impact, Acoustic Harassment Devices (AHDs, Lofitech) were tested. This study presents quantitative data on seal damage in Estonian trap-net fisheries and analyses the results of the attempts made to mitigate the damage by means of AHDs. It can be concluded that AHDs provided sufficient protection against the seal attacks.

Authors/Creators:Vetemaa, Markus and Paadam, Ulvi and Fjälling, Arne and Rohtla, Mehis and Svirgsden, Roland and Taal, Imre and Verliin, Aare and Eschbaum, Redik and Saks, Lauri
Title:Seal-induced losses and successful mitigation using Acoustic Harassment Devices in Estonian Baltic trap-net fisheries
Series Name/Journal:Proceedings of the Estonian Academy of Sciences
Year of publishing :2021
Volume:70
Page range:207-214
Number of Pages:8
Publisher:ESTONIAN ACAD PUBLISHERS
ISSN:1736-6046
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution-Noncommercial 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Fish and Aquacultural Science
Keywords:Acoustic Harassment Devices, coastal fisheries, trap nets, catch damage, Baltic Sea, grey seal
URN:NBN:urn:nbn:se:slu:epsilon-p-112787
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-112787
Additional ID:
Type of IDID
DOI10.3176/proc.2021.2.09
Web of Science (WoS)000668180800007
ID Code:24861
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Department of Aquatic Resources
Deposited By: SLUpub Connector
Deposited On:14 Jul 2021 13:25
Metadata Last Modified:14 Jul 2021 13:31

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