. Die kanadische Feld - naturforscher. 1988 Bigg: Status der California Sea Lion 309. Ich 28 "126" Abbildung 2. Geografischen Standorten der wichtigsten haulout und Rafting Sites verwendet von Kalifornischen Seelöwen (•) Vancouver Island, und Websites verwendet nur von Steller Seelöwen (O)., Long Beach Rocks, Regenpfeifer Riffe, Raphael, Escalante, Ferrer Punkt., Barrie Felsen, und O'Leary Felsen (Abbildung 2). Diese Websites sind in der Regel durch 50-250 Steller Seelöwen im Winter besetzt. Kalifornische Seelöwen erschien Aufstellungsorte, die direkt mit der ozeanischen schwillt ausgesetzt sind, zu vermeiden. Großen swells treten nicht aus southe

• Bildanbieter: Book Worm / Alamy Stock Foto
• Bild-ID: RG2MP7
• Dateigröße: 7,2 MB (339,9 KB Komprimierter Download)
• Freigaben (Releases): Model - nein | Eigentum - nein
• Format: 1870 x 1337 px | 31,7 x 22,6 cm | 12,5 x 8,9 inches | 150dpi

Weitere Informationen

Dieses Bild ist ein gemeinfreies Bild. Dies bedeutet, dass entweder das Urheberrecht dafür abgelaufen ist oder der Inhaber des Bildes auf sein Urheberrecht verzichtet hat. Alamy berechnet Ihnen eine Gebühr für den Zugriff auf die hochauflösende Kopie des Bildes.

Dieses Bild kann kleinere Mängel aufweisen, da es sich um ein historisches Bild oder ein Reportagebild handel

. The Canadian field-naturalist. 1988 Bigg: Status of the California Sea Lion 309. I28« 126" Figure 2. Geographical locations of the main haulout and rafting sites used by California Sea Lions (•) Vancouver Island, and sites used only by Steller Sea Lions (O). off Point, Long Beach Rocks, Plover Reefs, Raphael Point, Escalante Point, Ferrer Point., Barrie Rocks, and O'Leary Rocks (Figure 2). These sites are occupied typically by 50-250 Steller Sea Lions in winter. California Sea Lions appeared to avoid sites that are exposed directly to oceanic swells. Large swells do not occur off southeastern Vancouver Island, but do occur off western Vancouver Island where they can be large, particularly in winter. Sites occupied by California Sea Lions off western Vancouver Island tend to be on the leeward side of islands. Individuals are often seen in ravines, and sometimes even at the base of trees and shrubs, where Steller Sea Lions are not typically seen. Protection The species is protected in U.S. waters under the Marine Mammals Protection Act of 1972 and in Canada since 1970 under the Federal Fisheries Act. However, the species may be taken in British Columbia under certain conditions specified by the Regional Director General of the Department of Fisheries and Oceans. No hunting of California Sea Lions has been permitted in Canada since 1970. Population Size and Trends The number of California Sea Lions in British Columbia was very low during the early 1900s, and has increased noticeably only in recent years. Newcombe and Newcombe (1914) and Newcombe et al. (1918) did not observe the species, but did cite accounts of it in Barkley Sound during the late 1800s and early 1900s. So uncertain was the evidence for occurrence that Wailes and New- combe (1929) later stated that no proof existed for the species in British Columbia. However, Guiguet (1953) established proof of early presence with the discovery of a skull collected just north of Barkley Sound in the late 180

Stockbilder mithilfe von Tags suchen

• bookcentury1900
• bookcolle