Sentences with phrase «gray whale population»

«The gray whale population has gotten bigger over the last 20 years and the killer whales have gotten better at hunting the gray whale calves,» she said.

When you consider the annual number of deaths for the entire gray whale population, this really isn't an alarming number of deaths.

The gray whale population is now estimated at 21,000, believed to match the pre-whaling census.

NOAA has collected surveys of gray whale population since at least the 1960s.

The current gray whale population numbers 21,000.

The current western gray whale population summers in the Sea of Okhotsk, mainly off Piltun Bay region at the northeastern coast of Sakhalin Island (Russian Federation).

As of 2001, the Californian gray whale population had grown to about 26,000.

Our results agree with previous genetic studies suggesting the historical size of the eastern gray whale population was roughly three to five times its current size.

In contrast, the western gray whale population, which was also decimated by whaling, remains highly depleted today and its continued ability to survive is of concern.

The company's protection of the western gray whale population was recognised in the Environmental Efficiency of Economics category.

One key concern from environmental groups is that the Sakhalin - 2 project will harm the western gray whale population.

By the 1990's, the gray whale population had come back.

It's important to note that the gray whale population along our coast is thriving, and gray whale calves provide vital sustenance for transient killer whales.

The special group makes up 1 percent of the total gray whale population of 20,000.

The nature of the relationship between gray whale populations and climate - sensitive ecosystem features such as sea ice, freshwater input to nearshore benthic ecosystems and benthic species composition is poorly understood [19], [20].

The drama unfolding now along the Monterey coast was unknown to researchers until about 1992, when the once vast gray whale populations began to recover after being driven nearly to extinction by whaling in the 19th and 20th centuries.

A number of scientists have proposed that western and eastern gray whale populations are not isolated and that the gray whales found in Russian waters are a part of an eastern population that is restoring its former range.

Not exact matches

By mid-February to mid-March, the bulk of the population has arrived in the lagoons, filling them with nursing, calving and mating gray whales.

Western gray whales are facing, the large - scale offshore oil and gas development programs near their summer feeding ground, as well as fatal net entrapments off Japan during migration, which pose significant threats to the future survival of the population.

Commercial whaling decimated many whale populations, including the eastern Pacific gray whale, but little is known about how population dynamics or ecology differed prior to these removals.

Genetic comparisons of ENP and WNP gray whales have found significant differences in both nuclear and mitochondrial DNA supporting their management as distinct population stocks.

The IWC Bowhead, Right and Gray Whale subcommittee in 2011 reiterated the conservation risk to western gray whales is large because of the small size of the population and the potential anthropogenic impacts.

Eastern gray whales represent a useful case study for investigating historic population dynamics and in particular the discrepancy between genetic and historical data, because both genetic diversity and historical records have been examined in depth [5], [16], [17].

Because they feed in Arctic and subarctic benthic environments, gray whales are thought to be relatively sensitive to changes in climate, and climatic events such as the Medieval Warm Period (ca. 900 — 1200 AD) or Little Ice Age (ca. 1300 — 1850 AD) could have caused a population decline.

This western North Pacific population of gray whales, estimated to include fewer than 100 individuals, remains highly depleted and its continued survival is questionable.

In this study, we investigate the pre-whaling genetic diversity, population dynamics and feeding ecology of the eastern Pacific gray whale using ancient and modern DNA sequences and stable isotope data.

Further south, in the Gulf of California, WWF supports a research team that is monitoring the population size and health of the gray whales that return each winter.

In January 2011, a gray whale that had been tagged in the western population was tracked as far east as the eastern population range off the coast of British Columbia.

Cascadia Research senior biologist John Calambokidis discussed his work examining the trends of populations of blue, fin, humpback, and gray whales in southern California during the July From Shore to Sea lecture.

There is also a western North Pacific population of gray whales found along the coast of eastern Asia that is totally isolated from the eastern North Pacific population.

A population of about 200 gray whales stay along the eastern Pacific coast from Canada to California throughout the summer, not making the farther trip to Alaskan waters.

As of 2011, the population of western Pacific (seas near Korea, Japan, and Kamchatka) gray whales was an estimated 130.

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.

POPULATION COUNT It is estimated that there are about 15,000 - 22,000 gray whales world - wide.

Once, three major populations of gray (also spelt grey) whale existed: in the western and eastern North Pacific Ocean, and in the North Atlantic.

However, the North Atlantic population of gray whale became extinct sometime in the 17th or 18th Century, for reasons that are not clear.

The drop in population made it no longer profitable to hunt gray whales; they were left alone and their numbers recovered.

The world's population of gray whales returns each winter to Mexico's Baja Peninsula.

The CALIFORNIA GRAY WHALE COALITION has been created to ensure the remaining Gray Whale population is relisted under the US ENDANGERED SPECIESWHALE COALITION has been created to ensure the remaining Gray Whale population is relisted under the US ENDANGERED SPECIESWhale population is relisted under the US ENDANGERED SPECIES ACT.

Nineteenth Century gray whaling: Grounds, catches, and kills, practices and depletion of the whale population.

Gray whales of Baja California Sur, a tourist attraction in expansion Published March 14, 2015 EFE By Ana Lopez Barron After reaching its largest population in almost 20 years, the gray whale has definitely become an important tourist attraction for... Continue reading →

After reaching its largest population in almost 20 years, the gray whale has definitely become an important tourist attraction for the Mexican state of Baja California Sur, a frequent destination for visitors from the United States and Canada.

NEW THREATS TO GRAY WHALES AS TRANSIENTS BECOME» RESIDENTS» Check out this awesome article from Kiro 7 News regarding our Transient Killer Whale population!

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.

Meanwhile, populations of eastern gray whales were also in a tight spot, but conservation efforts have brought them back — today they are believed to have a population of some 18,000.