2 edition of Monitoring of 1990-91 California sea lion predation in the Lake Washington estuary found in the catalog.
Monitoring of 1990-91 California sea lion predation in the Lake Washington estuary
|Series||Report / Fisheries Management Division -- no. 91-19., Report (Washington (State). Fisheries Management Division) -- no. 91-19.|
|Contributions||Washington (State). Fisheries Management Division.|
|The Physical Object|
|Pagination||vii, 63 p. :|
|Number of Pages||63|
Lake Reserv Manage – CrossRef Google Scholar Scholin CA, Gulland F, Doucette GJ et al () Mortality of sea lions along the central California coastlinked to a toxic diatom bloom. Nature –84 PubMed CrossRef Google Scholar For pinnipeds, sea otters (Enhydra lutris), and some coastal cetaceans, the physical alteration of the littoral, including the mere presence of humans and their associated infrastructures, may be a significant detrimental factor. Noise pollution is a particular source of concern because many marine mammals rely on sound emission and detection
Kelp Gull predation was quanti ﬁ ed by monitoring 12 Cape Cormorant subcolonies during four periods of the day: early morning (07 h 00 – 10 h 00), morning (10 h 00 – 13 h 00), afternoon Sea Otters, Shellfish, and Humans: A 10, Year Record from San Miguel Island, California Article (PDF Available) January with Reads How we measure 'reads'
Background Habitat modifications resulting from human transportation and power-generation infrastructure (e.g., roads, dams, bridges) can impede movement and alter natural migration patterns of aquatic animal populations, which may negatively affect survival and population viability. Full or partial barriers are especially problematic for migratory species whose life histories hinge on habitat ?id=/ A paper in the May issue of The Condor [(2)–, ] describes a repeatable and statistically robust approach to monitoring burrow nesting seabirds in the Salish Sea and the California Current that can be applied at single- or multi-island scales. The approach can be applied to both relatively common and important members of the
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Corps biologists began gathering data on sea lion predation at the dam inwhen 6 California sea lions were documented miles upstream from the sea. During the first full season of › Home › Environment.
Of all the pinniped species hunted by killer whales, southern elephant seals (Mirounga leonina), southern sea lions, harbor seals, Steller sea lions, walruses, and California sea lions have been most commonly recorded as prey a year period, approximately 62% of the transient killer whale attacks observed off British Columbia and Washington were on harbor seals (Ford and Of all the pinniped species hunted by killer whales, southern elephant seals (M.
leonina), South American sea lions, harbor seals, northern sea lions, and walruses have been commonly recorded as prey species.A majority of attacks by mammal eating killer whales off British Columbia and Washington are on harbor seals (Ford and Ellis, ).Harbor seals are particularly abundant in this Bigg, M.A.
Sighting and kill data for the Steller sea lion (Eumetopias jubatus) and California sea lion (Zalophus californianus) in British Columbia,with some records from Washington and southeastern Alaska. Canadian Data Report of Fisheries and Aquatic Sciences Bigg, M.A. /management-plans/steller-sea-lion/chapterhtml.
Postrelease monitoring of radioinstrumented sea otters in Prince William Sound. In Sea otter symposium, eds. Bayha and J. Komendy. Proceedings of a symposium to evaluate the response effort on behalf of sea otters after the T/V Exxon Valdez oil spill into Prince William Sound, Anchorage, AK, April A NMFS Working Group (NMFS ) determined that California sea lion and Pacific harbor seal populations in the three west coast states have risen by % annually since the mids.
Their predation on salmonids may now constitute an additional factor on salmonid population declines and can effect recovery of depressed populations in some Web view. These are found in the North Sea (van der Baan ; Hay et al. ; Barz and Hirche ), Eastern Scheldt estuary (Bakker ) and Wadden Sea (van der Veer ; van Walraven et al.
In the saline lake Grevelingen all species except C. Demographics and spatio-temporal signature of the biotoxin domoic acid in California sea lion (Zalophus californianus) stranding records. Marine Mammal Science.
Fishing is the most widespread human exploitative activity in the marine environment. Pauly and Christensen () estimated that over 20% of primary production is required to sustain fisheries in many intensively fished coastal ecosystems ().Previous estimates of the primary production required were much lower and led Vitousek et al.
to conclude that fishing had few fundamental effects on the Additionally, the study will collect sea lion scat (a.k.a. poop) in order to analyze their diet composition. The results of the study will enable managers to better understand the severity of sea lion predation on Nisqually winter steelhead and Nisqually winter chum salmon :// Some reference sites in also had elevated TPAHs in sediments and signatures matching Exxon Valdez oil, but concentrations were significantly lower than at oiled :// Spatial structure of water-quality impacts and foraging opportunities for steelhead in the Russian River estuary: an energetics perspective.
NOAA Tech. Memo. NOAA-TM-NMFS- SWFSC, 38 pp. Cordell J.R., Toft J.D., Munsch S.H., Goff M. Benches, beaches, and bumps: how habitat monitoring and experimental science can inform urban seawall Environmental Assessment on Protecting Winter-Run Steelhead from Predation by California Sea Lions in the Lake Washington Ship Canal, Seattle, Wash.
National Marine Fisheries Service Northwest Regional Office, Seattle, and Washington Department of Fish and Wildlife, :// The Salish Sea: Jewel of the Pacific Northwest brings together more than extraordinary images of the Salish Sea.
But don't call it a coffee table book. Its lush photos are backed by a serious scientific perspective on this complex and fragile :// LGL is one of North America's leading ecological research companies. Founded inwe have built our reputation conducting benchmark environmental studies.
LGL provides biological consulting services for the public and private For example, red tides and hypoxia can cause fish kills.
Similarly, red tides and blooms of other toxic algae can harm marine mammals: sea lion deaths in California and manatee deaths in Florida have been linked to harmful algal blooms (Reguera et al.
; Scholin et al. Figure Positions of whaling ships on days when sperm whales were sighted or caught. Dotted lines represent the m ( ft) and 1, m (3, ft) isobaths, and the lines between Cuba and Florida (top right) and the Mexican Yucatán Peninsula (bottom left) represent the approximate extent of the Gulf of Mexico to the southeast, as considered for marine mammals in this :// Plastic contamination in the natural environmental has attracted much attention from both researchers and the general public.
Organisms can ingest the plastic or become entangled in it; plastic waste is therefore hazardous to the entire ecosystem (Stefatos et al.,Sutherland et al., ).Plastics are synthetic or semi-synthetic organic polymers that are cheap, lightweight, strong The diet of harbor seals (Phoca vitulina richardii) in San Francisco Bay (SFB) in California was examined from July to July via scat :// Ecology (from Greek: οἶκος, "house", or "environment"; -λογία, "study of") is a branch of biology concerning interactions among organisms and their biophysical environment, which includes both biotic and abiotic components.
Topics of interest include the biodiversity, distribution, biomass, and populations of organisms, as well as cooperation and competition within and between ://. A NMFS Working Group (NMFS ) determined that California sea lion and Pacific harbor seal populations in the three west coast states have risen by % annually since the mids.
Their predation on salmonids may now constitute an additional factor on salmonid population declines and can affect recovery of depressed populations in some Web view.Cambridge Core - Mathematical Physics - The Turbulent Ocean - by S.
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