Diet & Eating Habits - All About The Harbor Seal - At

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Harbor Seal Harbor Seal Diet & Eating Habits DAYS HOURS MINUTES SECONDS
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Food Preferences & Resources

  • Adult harbor seals eat squid, crustaceans, molluscs, and a variety of fish; including, rockfish, herring, flounder, salmon, hake, and sand lance.
  • A harbor seal's diet varies seasonally and regionally and often is subject to local prey availability.

Food Intake

Adult harbor seals eat 5-6% of their body weight per day, about 4.5-8.2 kg (10-18 lb.).

Feeding Habits

Harbor seals don't chew their food. They swallow their food whole or tear it into chunks. With their back molars, they crush shells and crustaceans.

Foraging

In dark or low light conditions, a harbor seal uses its sensitive vibrissae to find food.

Water Intake

Harbor seals generally obtain the water they need from their food. If food intake is decreased, the metabolic breakdown of fat produces water. The metabolism of 0.45 kg (1 lb.) of fat produces 0.64 kg (1.4 lb.) of water.

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