. Cetaceans of the Channel Islands National Marine Sanctuary. Cetacea; Mammals. The harbor porpoise, PWofMupAofOfna (Linnaeus, 1758) on the other hand, is a shallow water inhabitant usually restricted to waters less than 50 frns and almost always to water less than 100 fins deep. They are a cold temperate/subarctic species whose normal range is well north of Point Conception. They have been only rarely reported from south of the point I strandings in Los Angeles, Santa Barbara and Ventura). No live harbor porpoises have been reported from south of Morro Bay. With such short distances between t
. Cetaceans of the Channel Islands National Marine Sanctuary. Cetacea; Mammals. The harbor porpoise, PWofMupAofOfna (Linnaeus, 1758) on the other hand, is a shallow water inhabitant usually restricted to waters less than 50 frns and almost always to water less than 100 fins deep. They are a cold temperate/subarctic species whose normal range is well north of Point Conception. They have been only rarely reported from south of the point I strandings in Los Angeles, Santa Barbara and Ventura). No live harbor porpoises have been reported from south of Morro Bay. With such short distances between the SCB and the southern portions of the species' range, however, it might be speculated that if the population grows and a period of cooling of the ocean occurs in the SCB then harbor porpoises may venture southward, in a reversal of the trend exhibited recently by bottlenose dolphins which have moved north of Point Conception during periods of warming, .^t present, however, populations of harbor porpoises are depressed. The species is victimized by gill nets set m the coastal waters for a variety of fishes. In 1985, alone, an estimated ^oo harbor porpoises were killed in such fisheries. With this impact the future of an already small population off California is m jeopardy. Figure 4b. A harbor porpoise oft Seaside. California in 1975 (top, and stranded near San Francisco ( bottom j. This species has never been reported ahve m [he SCB but is represented here by at least three strandings. (^Photo bv J. D. Hall, top; and M. Webber, bottom.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Leatherwood, Stephen; Stewart, Brent S; Folkens, Pieter A; Channel Islands National Marine Sanctuary (Calif. ); United States. National Marine Fisheries Service. [Santa Barbara, Calif. ] : National Marine Sanctuary Program
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Keywords: ., bookcentury1900, bookcoll, booksubjectcetacea, booksubjectmammals
