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The solunar theory is a hypothesis that fish and other animals move according to the location of the moon in comparison to their bodies. [1] The theory was laid out in 1926 by John Alden Knight, but was said to be used by hunters and fishermen long before the time it was published.
Leuresthes tenuis, the California grunion, is a species of ray-finned fish native to the Pacific coast of North America from Monterey Bay in California to Baja California.This species grows to 19 cm (7 in) in total length and is of minor importance to local fisheries, particularly during grunion runs in which the fish beach themselves to lay their eggs and are easily taken.
Grunion are two fish species of the genus Leuresthes: the California grunion, L. tenuis, and the Gulf grunion, L. sardinas.They are sardine-sized teleost fishes of the New World silverside family Atherinopsidae, found only off the coast of California, USA, and Baja California, Mexico, where the species are found on both the Pacific Ocean and Gulf of California coasts.
The lunar fusilier is targeted by fisheries in all areas in which it occurs. Fishermen use drive-in nets, gillnets, seine nets and fish traps to catch it. The catch is sold as fresh fish. This species is vulnerable to overfishing and has declined in some areas, but in many parts of its range it remains common. [1]
These organisms migrate up into shallower water at dusk to feed on plankton. The layer is deeper when the moon is out, and can become shallower when clouds pass over the moon. [10] Sampling via deep trawling indicates that lanternfish account for as much as 65% of all deep sea fish biomass. [3]
The last time a series of oarfish came ashore in California and other parts of the world was over several months in 2013 and 2014. Misty Paig-Tran, associate professor of biological science at Cal ...
Newly released figures from the California Department of Fish and Wildlife estimate the number of Sacramento River fall-run Chinook salmon in the ocean this year at nearly 166,000 fish — down ...
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