Entanglement of Steller sea lions (Eumetopias jubatus) in marine debris: identifying causes and finding solutions.

Abstract:

:Entanglement in marine debris is a contributing factor in Steller sea lion (SSL; Eumetopias jubatus) injury and mortality. We quantified SSL entanglement by debris type, sex and age class, entanglement incidence, and estimated population level effects. Surveys of SSL haul-outs were conducted from 2000-2007 in Southeast Alaska and northern British Columbia. We recorded 386 individuals of all age classes as being either entangled in marine debris or having ingested fishing gear. Packing bands were the most common neck entangling material (54%), followed by rubber bands (30%), net (7%), rope (7%), and monofilament line (2%). Ingested fishing gear included salmon fishery flashers (lures: 80%), longline gear (12%), hook and line (4%), spinners/spoons (2%), and bait hooks (2%). Entanglement incidence was 0.26% (SD=0.0064, n=69 sites). "Lose the Loop!" Simple procedures such as cutting entangling loops of synthetic material and eliminating the use of packing bands can prevent entanglements.

journal_name

Mar Pollut Bull

authors

Raum-Suryan KL,Jemison LA,Pitcher KW

doi

10.1016/j.marpolbul.2009.06.004

subject

Has Abstract

pub_date

2009-10-01 00:00:00

pages

1487-95

issue

10

eissn

0025-326X

issn

1879-3363

pii

S0025-326X(09)00226-4

journal_volume

58

pub_type

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