Sentences with phrase «most whale populations»

Not exact matches

«Unlike most terrestrial species, populations of whales within oceans are not isolated by geographic barriers.

Most estimates of historic whale population size have been extrapolated from old whaling figures, but this method is often very inaccurate, argues marine biologist Steve Palumbi of Stanford University's Hopkins Marine Station in California, US.

Using only the DNA from sloughed - off cells floating in the ocean, scientists have been able to determine the population size and genetic properties of one of the world's largest and most mysterious animals: the whale shark.

In one year, a Soviet expedition took 1200 right whales, the most endangered of large whales, from a world population estimated at only 2500 animals.

North Atlantic right whales (Eubalaena glacialis) are among the most endangered of all marine mammals: despite a recent population uptick, only about 450 remain.

Most of the shore's meagre population — the Irish and West Country English and the bushborns of uncertain provenance — were camped on the grey sand, waiting to butcher a whale that had beached itself in the shallows on the feast day of St. Mark.

Most hunted whales are now threatened, with some great whale populations exploited to the brink of extinction.

They state that «the most recent population estimate [from 2007] was approximately 19,000 whales, with a high probability (88 %) that the population is at «optimum sustainable population» size, as defined by the Marine Mammal Protection Act.

It provides breeding and feeding grounds for at least twenty - five endangered or threatened species; thirty - six marine mammal species, including blue, gray, and humpback whales, harbor seals, elephant seals, Pacific white - sided dolphins, and one of the southernmost U.S. populations of threatened Steller sea lions; over a quarter - million breeding seabirds; and one of the most significant white shark populations on the planet.

Compared with other bodies of water its size, the Sea of Cortez supports the largest and most varied population of whales in the world: humpback, Bryde's, minke, orca, and sperm whales also live there.

Blue whales can migrate big distances, but Sri Lanka's population tend to stick around for long periods in Mirissa on the south coast — with most sightings from November to April.

Most populations of the big whales are down.

This means supporting the experimental development of instruments that might be effective in slowing the unsustainable harvest of whale populations, as well as easing the collective suffering of some of the planet's most remarkable beings.

A. Several whale populations are indisputably endangered, including western gray whales (eastern gray whales, which are the population of gray whales found on the Pacific coast of North America, are no longer considered endangered), eastern bowhead whales, North Atlantic and Pacific right whales, blue whales, and most humpback whales.

All other populations of whales, except most minkes, are of disputed status.

With whales, WCS employs a range of techniques, including acoustic monitoring, satellite tracking, and conservation genetics to better understand populations, to define their most biologically important habitats.

«Arctic waters include some of the world's most productive ocean ecosystems, providing sustenance to large populations of whales, seals, and walruses and seabirds.

If we don't recover declining chinook salmon, one of our most iconic whale populations likely won't survive.