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Humpback whale breach sequence. A breach or a lunge is a leap out of the water, also known as cresting. The distinction between the two is fairly arbitrary: cetacean researcher Hal Whitehead defines a breach as any leap in which at least 40% of the animal's body clears the water, and a lunge as a leap with less than 40% clearance. [2]
Sardine bait balls can be 10–20 metres (33–66 ft) in diameter and extend to a depth of 10 metres (33 ft). The bait balls are short-lived and seldom last longer than 10 minutes. However, bait balls are also conspicuous, and when schooling fish form a bait ball, they can draw the attention of many other predators.
More whales will then blow bubbles while continuing to circle their prey. The size of the net created can range from three to thirty metres (9.8 to 98.4 ft) in diameter. [6] One whale will sound a feeding call, at which point all whales simultaneously swim upwards with mouths open to feed on the trapped fish. [4]
Warming water has brought more bait close to shore and it is the food that whales, dolphins, sea turtles, sharks, tuna and others like to eat. Warming water has brought more bait close to shore ...
Jul. 9—NEWBURYPORT — Residents and tourists alike have caught glimpses of whales feeding on schools of fish off the shores of Plum Island and Salisbury Beach this week. Ashley Stokes, director ...
A Dall's porpoise caught in a fishing net. Generally, cetacean bycatch is increasing. Most of the world's cetacean bycatch occurs in gillnet fisheries. [3] The mean annual bycatch in the U.S. alone from 1990 to 1999 was 6,215 marine mammals, with dolphins and porpoises being the primary cetaceans caught in gillnets. [3]
Right now, the area is a hotspot for feeding birds, whales, and fish. ’Whales, bait, birds, and foamers. Full on Nat Geo.’ said Captain Joe Baxter, referring to the Fingers tuna grounds last week.
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