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- W2088966475 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 289:285-306 (2005) - doi:10.3354/meps289285 Marine mammal occurrence and ocean climate off central California, 1986 to 1994 and 1997 to 1999 C. A. Keiper1,*, D. G. Ainley2, S. G. Allen3, J. T. Harvey4 1Oikonos, PO Box 979, Paradise Valley, Bolinas, California 94924, USA2H. T. Harvey & Associates, 3150 Almaden Expressway, Suite 145, San Jose, California 95118, USA 3Point Reyes National Seashore National Park Service, Point Reyes, California 94956, USA 4Moss Landing Marine Laboratories, 8272 Moss Landing Road, Moss Landing, California 95039, USA *Email: carol@oikonos.org ABSTRACT: The California Current System (CCS), a highly variable eastern boundary system, supports a rich marine mammal fauna. Variation in local coastal upwelling, coupled with larger scale processes (El Niño/La Niña) affects the productivity and distribution of marine species at all trophic levels. Herein, we present an analysis of the occurrence patterns of marine mammals in the central CCS and relate these patterns to changing ocean climate and prey availability. Data on marine mammal distributions, ocean conditions, and prey availability were collected in waters overlying the continental shelf and slope from Bodega to Monterey Bays, from 1986 to 1994 and 1997 to 1999. Occurrence patterns were investigated using geographical information system (GIS), percent similarity index (PSI), multiple logistic regression, and principal component analyses. Spatial patterns of the most frequently sighted species (California sea lion Zalophus californianus, northern fur seal Callorhinus ursinus, Pacific white-sided dolphin Lagenorhyncus obliquidens, Dalls porpoise Phocoenoides dalli, harbor porpoise Phocoena phocoena,and humpback whale Megaptera novaeangliae) were related to bathymetry and changing ocean climate, and were likely to have been mediated by changes in prey availability. Temporal changes were related to migration and significant differences in ocean structure resulting from both local and large-scale processes. KEY WORDS: California Current System · Bathymetry · Cetaceans · Coastal upwelling · El Niño · La Niña · Marine mammals · Ocean habitats · Pinnipeds Full text in pdf format PreviousNextExport citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 289. Online publication date: March 30, 2005 Print ISSN: 0171-8630; Online ISSN: 1616-1599 Copyright © 2005 Inter-Research." @default.
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- W2088966475 title "Marine mammal occurrence and ocean climate off central California, 1986 to 1994 and 1997 to 1999" @default.
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