Entanglements of marine mammals and seabirds in central California and the north-west coast of the United States 2001-2005

Emma Moore, Shannon Lyday, Jan Roletto, Kate Litle, Julia K. Parrish, Hannah Nevins, Jim Harvey, Joe Mortenson, Denise Greig, Melanie Piazza, Alison Hermance, Derek Lee, Dawn Adams, Sarah Allen, Shelagh Kell

Research output: Contribution to journalArticlepeer-review

58 Scopus citations

Abstract

Entanglement records for seabirds and marine mammals were investigated for the period 2001-2005. The entanglement records were extracted from databases maintained by seven organizations operating along the west coast of the United States of America. Their programmes included beach monitoring surveys, rescue and rehabilitation and regional pinniped censuses. Records of 454 entanglements were documented in live animals and in carcasses for 31 bird species and nine marine mammal species. The most frequently entangled species were Common Murres, Western Gulls and California sea lions. The entanglement materials identified were primarily fishing related. Entanglements were recorded every year suggesting that although the incidence level differs annually, entanglement is a persistent problem. It is recommended that each programme records details in standardized categories to determine entanglement material sources. Numbers of entanglements observed during these surveys are likely to be a conservative view of the actual entanglement rate taking place at sea.

Original languageEnglish (US)
Pages (from-to)1045-1051
Number of pages7
JournalMarine pollution bulletin
Volume58
Issue number7
DOIs
StatePublished - Jul 2009

All Science Journal Classification (ASJC) codes

  • Oceanography
  • Aquatic Science
  • Pollution

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