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The timing of haulouts is often dependent on tidal cycles so that seals can haulout during low tide. In the absence of tides, the time of day is the major influence on harbor seal haulout behavior. ... Polar bears are known to be predators of Western Atlantic harbor seals. Pups may also be preyed on by coyotes, foxes,
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marinebio.org/species.asp?id=158
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Harbor seals stick to familiar resting spots, generally rocky areas where land predators can't reach them, near a steady supply of fish to eat. Males fight over mates underwater. Females mate with the strongest males, then bear single pups, which they care for alone. ... Major predators of ...
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www.reference.com/browse/harbor+seal
www.reference.com/browse/harbor+seal
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Predators include killer whales, great white and Greenland sharks and possibly other shark species, Steller sea lions and walrus, gulls and ravens and in southerly locales feral dogs and eagles. There is no information on polar bear, brown bear, and wolf predation on harbor seals, but all are possible predators.
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www.iucnredlist.org/apps/redlist/details/17013
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During the months when herring aggregate to spawn, adult herring and roe become a major component in the diets of local seabird and pinniped populations (Wilson and Womble, ... Herring aggregations that occur within Holding and Spawning Habitat are likely attractive to harbor seals because they are densely distributed (Stick,
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myweb.students.wwu.edu/~thomas20/EGEO_451/Lab9/Austen_T...
myweb.students.wwu.edu/~thomas20/EGEO_451/Lab9/Austen_Thomas_Proposal.html
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Following model parameter optimization, QFASA estimates reflected major diet trends in the feeding study, but were sensitive to the CC and FA subsets used as well as to prey species with similar FA signatures. ... Harbor seals in Hood Canal: predators and prey.
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www.marinemammal.org/steller_sea_lion/harborseal/fastfa...
www.marinemammal.org/steller_sea_lion/harborseal/fastfacts.php
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Illegal killing of Harbor seals also takes place throughout the species' range. The species is preyed upon by Orca (Killer Whales)and sharks. Polar Bears are known to be predators of Western Atlantic Harbor seals.
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www.eaglewingtours.com/016_WhalesandWild/2709_EagleWing...
www.eaglewingtours.com/016_WhalesandWild/2709_EagleWingWhal.html
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General information about harbor seals ... Diurnal cycles, tide state and height, and disturbance levels all appear to play a role in the number of seals present on the haul out. Disturbance caused by human activity can have a major effect on haul out numbers (Pauli and Terhune, 1987 );
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userwww.sfsu.edu/~halmark/educati.htm
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To make the harbor seals less noticeable to predators, their coats sometimes blend in with the rocks or sand they’re lying in. To help them find food easier, they have a keen sense of smell. Without these adaptations, who knows if the Harbor Seal would still exist today.
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www.slashdoc.com/documents/69280
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Summary of Food Habit Studies of Pacific Harbor Seals in Washington, Oregon, and California Since 1970 ... Pacific harbor seals are present in Washington, Oregon, and California year-round; pupping occurs in all three states. Harbor seal populations in the three states have been increasing at a rate ofabout 5-7% annually...
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www.nwfsc.noaa.gov/publications/techmemos/tm28/tm28.htm
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