Agriculture Fish Farming Tank

Fishery resources are an important resource that can not only meet human dietary needs, but also bring huge economic benefits to people. In the world, the sea areas with abundant fishery resources are generally referred to as fishing grounds. From a global perspective, large fishing grounds are mainly distributed on the offshore continental shelf, which is the area where land extends to the ocean.

These areas are well lit, with rivers on land flowing into the sea, bringing abundant nutrients to the continental shelf waters. Cold and warm currents also converge in the continental shelf area, bringing nutrients from the deep sea to the shallow sea, leading to the proliferation of plankton. For fish, plankton is a great bait that attracts many fish to gather on the continental shelf, forming large fishing grounds. Therefore, the world's large fishing grounds are all extremely rich in planktonic waters.

Sockeye salmon (Oncorhynchus nerka) are also known in the US as red salmon. This lake-rearing species is found south as far as the Klamath River in California in the eastern Pacific and northern Hokkaidō island in Japan in the western Pacific and as far north as Bathurst Inlet in the Canadian Arctic in the east and the Anadyr River in Siberia in the west. Although most adult Pacific salmon feed on small fish, shrimp, and squid, sockeye feed on plankton they filter through gill rakers. Kokanee salmon are the land-locked form of sockeye salmon.

Danube salmon, or huchen (Hucho hucho), are the largest permanent freshwater salmonid species.

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