Seabird Mortality in North Pacific Longline Fisheries. (Marine Matters)

By Gilman, Eric; Freifeld, Holly | Endangered Species Update, March-April 2003 | Go to article overview

Seabird Mortality in North Pacific Longline Fisheries. (Marine Matters)


Gilman, Eric, Freifeld, Holly, Endangered Species Update


Abstract

One of the most globally critical threats to seabirds is mortality in longline fisheries. Available estimates for total albatross mortality in North Pacific pelagic longline fisheries, along with population modeling experiments on the Black-footed Albatross, highlight the concern that mortality in longline fisheries threatens the existence of Black-footed Albatrosses and may pose a significant threat to the other North Pacific albatross species. The potential exists to minimize seabird mortality in longline fisheries to insignificant levels, given the degree of international attention, the existence of legally binding accords, the availability of cost-effective seabird deterrent methods, and the usefulness of economic incentive instruments. To realize this potential, however, will require widespread implementation of relevant multilateral accords and initiatives, provision of strong economic incentives for vessels to voluntarily use effective seabird deterrents, and implementation of effective formal constraints that provide strong economic disincentives for noncompliance with seabird conservation measures. Adoption of an international performance standard for hook sink rate with concomitant standardization of gear line weighting by gear manufacturers is offered as a specific next step to help abate this problem.

Mortalidad de Aves Marinas en las Lineas Extensivas de Pesca en el Pacifico Norte

Una de las mas graves amenazas a nivel global para algunas especies de aves marinas es la mortalidad en lineas extensivas de pesca. Las estimaciones disponibles de la mortalidad total de albatroses en las lineas extensivas de pesca de la zona pelagica del Pacifico Norte, asi como tambien los experimentos sobre modelos poblacionales del albatros de patas negras, enfatizan el temor de que la mortalidad en pesca de linea extensiva amenaza la existencia del albatros de patas negras y pudiera ser una amenaza significativa para otras especies de albatroses del Pacifico Norte. Dado el grado de atencion internacional, la existencia de acuerdos legales restrictivos, la disponibilidad de metodos efectivos de prevencion de captura de aves que ademas reducen costos, y la utilidad de incentivos economicos, existe el potencial para minimizar la mortalidad de aves marinas en pesca de linea extensiva a niveles insignificantes. Sin embargo, para poder lograr este potencial, se requiere una implementacion amplia de acuerdos e iniciativas multilaterales relevantes, la provision de fuertes incentivos economicos a embarcaciones para el uso voluntario de metodos efectivos de prevencion de captura de aves marinas, y la implementacion de restricciones formales efectivas que impongan fuertes sanciones economicas para aquellos que no cumplan con las medidas de proteccion de aves marinas. La adopcion de un estandar internacional de efectividad del grado de hundimiento de anzuelos en combinacion con la estandarizacion del pesaje del equipo de linea hecha por los fabricantes, se ofrece como un siguiente paso especifico para abatir este problema.

Mortalite des Oiseaux Marins dans la Peche Palangriere du Pacifique du Nord

Une des menaces la plus serieuse globalement pour les oiseaux marins est leur mortalite dans la peche palangriere. Les estimations disponibles sur la mortalite totale des albatros dans la peche palangriere du Pacifique du Nord, avec des experiences modelant la population de l'albatros a pieds noirs, accentuent le souci que la mortalite dans la peche palangriere menace l'existence des albatros a pieds noirs et peut constituer une menace importante aux autres especes d'albatros du region. Le potentiel existe pour reduire la mortalite des oiseaux marins dans la peche palangriere a un niveau insignifiant, donne la priorite de la communaute internationale, l'existence des accords obligatoires, la disponibilite des mesures preventives des oiseaux marins efficace et economique, et l'utilite des instruments economiques. …

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Seabird Mortality in North Pacific Longline Fisheries. (Marine Matters)
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