[MARMAM] New ESR paper: Entanglement risk to western gray whales from commercial fisheries in the Russian Far East

BERZINA-RODRIGO Anete Anete.BERZINA at iucn.org
Mon Oct 15 14:42:05 PDT 2018


Dear colleagues,

I am pleased to announce the following new Open Access scientific paper:

Lowry LF, Burkanov VN, Altukhov A, Weller DW, Reeves RR (2018) Entanglement risk to western gray whales from commercial fisheries in the Russian Far East. Endang Species Res 37:133-148.

The full text of the paper and a link to the Russian translation (commissioned by IUCN) is available at https://doi.org/10.3354/esr00914

ABSTRACT: Western gray whales Eschrichtius robustus (WGWs) are endangered, and their range overlaps areas where several important commercial fisheries operate in the Russian Far East (RFE). Throughout their range, gray whales commonly become entangled or entrapped in fishing gear. In the western North Pacific, they have been killed in set nets and seen entangled with ropes and float lines. Signs of fishery interactions on 28 of 150 living whales photographed near Sakhalin Island were reported in a published study. We describe characteristics of RFE fisheries that might entangle WGWs, including fishing effort based on daily catch reports from 2010-2014. We make a preliminary qualitative assessment of entanglement risk, taking into account factors including (1) evidence that the gear type has entangled large whales, (2) fishing effort, and (3) geographic and temporal overlap between WGWs and fishing activity. Fishing for salmonids with pelagic gillnets is no longer allowed in the RFE, and as long as the prohibition is being followed such fishing poses no risk to WGWs. In contrast, the coastal salmon set net fishery poses a high entanglement risk off northeastern Sakhalin and Kamchatka where WGWs feed very close to shore, and that situation should be mitigated. Bottom-set gillnet, demersal longline, snurrevad (also called Danish seine), and trap and pot fisheries overlap substantially with WGW distribution, and bycatch in those fisheries should at least be monitored. More rigorous risk assessment would require additional information on WGW distribution and movements.

The associated IUCN news in English and Russian can be found at https://www.iucn.org/wgwap or directly here: https://www.iucn.org/news/business-and-biodiversity/201810/western-gray-whales-great-risk-salmon-nets-iucn-backed-study

Please do share widely within your networks as you see fit.

Kind regards,
Anete


Anete Berzina-Rodrigo
Manager - Western Gray Whale Advisory Panel
Global Marine & Polar Programme &
Global Business & Biodiversity Programme
IUCN (International Union for Conservation of Nature)
28 rue Mauverney, CH-1196 Gland, Switzerland
Tel. +41 22 999 0703; Fax +41 22 999 0002
www.iucn.org<http://www.iucn.org/>
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