Sentences with phrase «herring populations»

Pacific herring populations have also plunged in Washington to crisis levels and should already be on the list.

The researchers drew from their ancient data - catch concrete evidence that long - ago herring populations were consistently abundant and widespread for thousands of years.

Once so abundance along the eastern seaboard that our rivers once «ran silver» in the spring, alewife herring populations have crashed, largely due to dams that obstruct their -LSB-...]

The herring population crashed four years after the spill in Prince William Sound and pink salmon stocks also declined, but the link to the oil spill has remained controversial.

Before the herring population of the Salish Sea crashed due to human interference, there were around 30 minke whales that foraged all summer in the San Juan Islands.

The research, led by a collaborative team of international scientists, was trying to find out why the herring population had been declining so drastically since the end of the 1950s.

The Pacific - herring population collapsed after the spill, and one pod of killer whales had its population cut by 40 percent.

Not exact matches

Comparing the incidence of abuse among populations is a red - herring.

A drop in the number of river herring is forcing the state to consider new regulations to help the fish population recover in the Hudson River and elsewhere.

«Because the number breeding in urban areas has increased (though still a small percentage of the overall UK population), people do not realise that the herring gull is disappearing from our coasts,» she says.

Despite their aggressive, quarrelsome and omnivorous nature, Europe has seen a significant decline in herring gulls, lesser gulls and great black - backed gulls, the three largest populations.

Populations of pacific herring, a cornerstone of the local fishing industry, collapsed.

When herring stocks in the Norwegian Sea crashed in the 1960s, the puffins had trouble reproducing and the population plummeted by 64 %.

In a study published today in PNAS, scientists in Sweden and Canada, led by Leif Andersson at Uppsala University / SciLifeLab, have studied the genetic basis of reproduction in 25 populations of herring from both sides of the North Atlantic.

In a study published today in PNAS, scientists in Sweden and Canada, led by Leif Andersson at Uppsala University / SciLifeLab, have studied the genetic basis of reproduction in 25 populations of herring from both sides of the North -LSB-...]

In recent years the research program has been expanded to include natural populations such as the Darwin's finches, ruff and Atlantic herring because of the exciting opportunities opened up by the development of new sequencing technologies.

32 Northwest mollusks 404 Southeast aquatic, riparian, and wetland species Acuna cactus Amargosa toad American pika (federal) American, Taylor, Yosemite, Gray - headed, White Mountains and Mt. Whitney pika (California) Andrew's dune scarab beetle Ashy storm - petrel Atlantic bluefin tuna Bearded seal Black abalone Blumer's dock Bocaccio (central / southern population) Cactus ferruginous pygmy owl California spotted owl California tiger salamander (federal) California tiger salamander (California) Canelo Hills ladies» tresses Casey's June beetle Cherry Point Pacific herring Chiricahua leopard frog Colorado River cutthroat trout Cook Inlet beluga whale (1999) Cook Inlet beluga whale (2006) Delta smelt Desert nesting bald eagle Dusky tree vole Elkhorn coral Gentry's indigobush Giant palouse earthworm Gila chub Great Basin spring snails Headwater chub Holmgren's milk - vetch Huachuca water umbel Iliamna lake seals Island fox Island marble butterfly Kern brook lamprey Kittlitz's murrelet (Alaska) Kittlitz's murrelet (federal) Klamath River chinook salmon Las Vegas buckwheat Least chub Loggerhead sea turtle (northern and Florida population) Loggerhead sea turtle (northern Pacific population) Loggerhead sea turtle (western North Atlantic population) Longfin smelt Mexican garter snake Mexican spotted owl Mojave finge - toed lizard North American green sturgeon Northern Rockies fisher Northern sea otter Pacific fisher (federal) Pacific fisher (California) Pacific lamprey Pacific Northwest mollusks Pacific walrus Page springsnail Palm Springs pocket mouse Parish's alkali grass Polar bear Puget Sound killer whale Queen Charlotte goshawk Relict leopard frog Ribbon seal Ringed seal River lamprey Rio Grande cutthroat trout Roundtail chub Sacramento Mountains checkerspot butterfy Sand dune lizard Sand Mountain blue butterfly Shivwitz milk - vetch Sierra Nevada mountain yellow - legged frog Sierra Nevada red fox Siskiyou Mountains salamander Sonora tiger salamander Southwestern willow flycatcher Spotted seal Spring pygmy sunfish Staghorn coral Tahoe yellow cress Tricolored blackbird Tucson shovel - nosed snake Virgin river spinedace Western brook lamprey Western burrowing owl (California) Western gull - billed tern Yellow - billed cuckoo Yellow - billed loon Yosemite toad

A rebounding population of humpback whales in the San Juan Islands usually reaches its peak in September as schools of juvenile herring attract them.

Four years after the Exxon Valdez ran aground in Prince William Sound, Alaska, herring stocks collapsed and a marked decline was seen in salmon populations.

The loss of populations of lake trout (Salvelinus namaycush), lake herring (Coregonus artedii), white suckers (Catostomus commersoni), and other fishes in Lumsden Lake was attributed to increasing levels of acidity within the lake.

To sustain the population, state staff have had to capture and transport the herring around the dams to their upstream spawning area.