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Harbour porpoises tend to be solitary foragers, but they do sometimes hunt in packs and herd fish together. [11] Young porpoises need to consume about 7% to 8% of their body weight each day to survive, which is approximately 15 pounds or 7 kilograms of fish. Significant predators of harbour porpoises include white sharks and killer whales (orcas).
Populations of harbor porpoises in the North and Baltic Seas are under increasing pressure from anthropogenic causes such as offshore construction, ship traffic, fishing, and military exercises. [59] Increasing pollution is a serious problem for marine mammals.
The vaquita (/ v ə ˈ k iː t ə / və-KEE-tə; Phocoena sinus) is a species of porpoise endemic to the northern end of the Gulf of California in Baja California, Mexico.Reaching a maximum body length of 150 cm (4.9 ft) (females) or 140 cm (4.6 ft) (males), it is the smallest of all living cetaceans.
Harbor porpoises Take, for instance, the harbor porpoises. Keener said these friendly, blunt-nose, dolphin-like animals had been a permanent fixture in the bay for thousands of years.
The primary diet of transient orcas includes harbor seals, Steller sea lions, harbor porpoises, Dall's porpoises, Pacific white-sided dolphins, and Minke whales. Among these, the harbor seal is the most common prey; one survey estimated that more than half of the diet of transients in the Salish Sea region consists of harbor seals. [16]
The last recorded sighting of a white harbor porpoise was in the U.K. in 2016, the post said. Nearly half of the other 35 reported cases have been in the northeast Atlantic. Social media users ...
Will enter the Upper Harbor and has been seen off Coney Island. This is the fastest swimming whale found in the estuary. Humpback whale (Megaptera novaeangliae) Among whales, one of the most common visitors to the Harbor as of 2018. Records going back over 300 years are very clear that whales were present in the area in historical times and ...
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