Decline of the Steller sea lion in Alaskan waters : untangling food webs and fishing nets /

For an unknown reason, the Steller sea lion population in Alaska has declined by 80% over the past three decades. In 2001, the National Research Council began a study to assess the many hypotheses proposed to explain the sea lion decline including insufficient food due to fishing or the late 1970s c...

Descripción completa

Detalles Bibliográficos
Clasificación:Libro Electrónico
Autor Corporativo: National Research Council (U.S.). Committee on the Alaska Groundfish Fishery and Steller Sea Lions
Formato: Electrónico eBook
Idioma:Inglés
Publicado: Washington, D.C. : National Academies Press, ©2003.
Temas:
Steller's sea lion > Alaska.
Sea lions > Alaska.
Fisheries > Alaska.
Animal populations.
Food chains (Ecology)
Fishing nets > Environmental aspects > Alaska.
Food Chain
Otarie de Steller > Alaska.
Pêches > Alaska.
Animaux > Populations.
Chaînes alimentaires (Écologie)
Filets de pêche > Aspect de l'environnement > Alaska.
Lions de mer > Alaska.
SCIENCE > Life Sciences > Zoology > Mammals.
NATURE > Animals > Mammals.
Animal populations
Fisheries
Fishing nets > Environmental aspects
Sea lions
Steller's sea lion
Bedrohte Tiere
Netzfischerei
Nahrungskette
Seelöwen
Alaska
Acceso en línea:Texto completo

Internet

Texto completo

Items no disponibles

Detalle de Existencias desde

Ejemplares similares