SCIENCE NEWS: Salmon migrate through Delta despite bridge’s influence; Toxic algal bloom in Monterey; Acidified ocean water along West Coast; Understanding a river’s thermal landscape; and more ….
In science news this week: Chinook salmon and green sturgeon migrate through San Francisco Estuary despite large distortions in the local magnetic field produced by bridges; What caused the most toxic algal bloom ever observed in Monterey Bay?
; Illegal marijuana grow sites: A stain upon public lands; Poor predictions: The 2017 salmon season forecast; Acidified ocean water widespread along North America’s west coast; Taking stock: A Klamath biologist takes a look back; ‘Monster’ Lahontan cutthroat making a comeback; Understanding a river’s thermal landscape may be the key to saving it; and more … Chinook salmon and green sturgeon migrate through San Francisco Estuary despite large distortions in the local magnetic field produced by bridges: “Empirical evidence exists that some marine animals perceive and orient to local distortions in the earth’s main static geomagnetic field.
These included Chinook salmon smolts (Oncorhynchus tshawytscha) that migrate downstream through the San Francisco Estuary to the Pacific Ocean and adult green sturgeon (Acipenser medirostris), which migrate upstream from the ocean through the estuary to their spawning habitat in the upper Sacramento River and return to the ocean after spawning occurs.
… ” Read more from PLOS One here: Chinook salmon and green sturgeon migrate through San Francisco Estuary despite large distortions in the local magnetic field produced by bridges What caused the most toxic algal bloom ever observed in Monterey Bay?
To forecast an index of abundance for Sacramento River Fall-run Chinook (SRFC) salmon, the largest population of salmon in the Central Valley, they use data on the number of fall-run Chinook jacks (two-year old fish) that returned to the river the previous fall.
… ” Read more from Science Daily here: Acidified ocean water widespread along North America’s west coast A spinning fish screen: “FISHBIO has helped install some large fish screens to prevent small fish from getting entrained in water diversions over the years, but sometimes we are reminded that fish screens come in all shapes and sizes.
… ” Read more from Science Daily here: Seacoast roads under new threat from rising sea level Turning the tide on plastic litter: “I can’t remember the last time I walked along the shore and didn’t see plastic debris.
It takes more than 400 years for each piece of plastic to degrade.
… ” Read more from the Cool Green Science blog here: Turning the tide on plastic litter Maven’s XKCD Comic Pick of the Week … Sign up for daily email service and you’ll never miss a post!