Sentences with phrase «spawning fish»

A new study on the effects of the 1989 Exxon Valdez oil spill in Alaska shows that embryonic salmon and herring exposed to very low levels of crude oil can develop hidden heart defects that compromise their later survival, indicating that the spill may have had much greater impacts on spawning fish than previously recognized.
Guests can see the sharks feeding on plankton and other spawning fish during the full moon of March — June.
At the same time, they may also have other impacts on the food web that have yet to be measured, including possibly competing with typical winter - spawning fishes for food.
The study, «Sex that moves mountains: The influence of spawning fish on river profiles over geologic timescales,» appears in the journal Geomorphology.
Sonoma County Vintner Steve Kistler to Pay More Than $ 500,000 to Settle Creek Pollution Case: A Sonoma County vintner has agreed to pay $ 579,700 to settle water code violations stemming from the release of muddy pond water into a Valley Ford creek that supports spawning fish, state officials announced Thursday...
But good luck trying to spot spawning fish in murky or fast - flowing rivers.
«Warm Northwest waters draw spawning fish north: Sardine, anchovies and hake spawning earlier, longer off Pacific Northwest.»
The findings show that single spawning fish are more successful than first - time repeat spawners their age, pointing to a tradeoff between mortality and reproduction.
Repeat spawning fish, on the other hand, save some of their energy for later.
Lava spawned fish and, ultimately, populated the earth.
The book does for river - spawning fishes what Callum Roberts» great book «The Unnatural History of the Sea» did for marine species.
Back at surface level, the group went to see the 300 - meter fish passage that enables spawning fish to bypass the hydropower plant.
Rising from the depths to feed on spawning fish and juvenile marine fauna, whale sharks are the largest fish in the ocean but pose no risk to humans.
«In terms of impacts to shore - spawning fish, the oil spill likely had a much bigger footprint than anyone realized.»
Armoring stops or dramatically slows erosion, and gradual - sloped, wide, sandy beaches over time give way to pebbly, steeper shorelines that aren't desirable to beach - spawning fishes — or humans.
But these walled structures also shrink beaches, reduce habitat for invertebrates and spawning fish and, indirectly, degrade conditions for iconic species like salmon and orcas.
«This is the first study to examine mate choice among wild - spawning fish of both hatchery and wild origin, and the results suggest that greater diversity of immune genes between wild - born pairs of coho salmon may increase offspring survival,» said Amelia Whitcomb, who did the research as a master's student at OSU and is lead author on the publication.
As the larval stage is the bottleneck to recruitment in commercial mass - spawning fish, ocean acidification must be considered as yet another anthropogenic stressor in future stock analysis of already exploited fish», Frommel sums up.
The whale sharks congregate near Gladden Spit and Silk Cayes Marine Reserve to feed on plankton and other spawning fish.
This, he said, could create new opportunities to reopen rivers for spawning fish and for recreation.
In most cases, decommissioning and removing hydropower dams is good for rivers, reviving natural river flows and restoring upstream access to spawning fish.
Beyond the effect the spill has on spawning fish and on wildlife more broadly, due to the
«In terms of impacts to shore - spawning fish, the oil spill likely had a much bigger footprint than anyone realized.»
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