Adult bull Steller sea lion (Eumetopias jubatus), catching salmon at the Solomon Gulch Hatchery, Valdez, Alaska, United States of America, North America

Bangladesh worker feeding fish with cow dung. Fish hatchery employing scientific methods at haluaghat, mymensingh region

Bangladesh man carrying boxed net, fish hatchery employing scientific methods at haluaghat, mymensingh region

Bangladesh fish caught at a fish hatchery employing scientific methods at haluaghat, mymensingh region

Bangladesh mixing fish roe with fish sperm to produce fingerlings, at a fish hatchery in haluaghat, mymensingh region

Bangladesh fish caught at a fish hatchery employing scientific methods at haluaghat, mymensingh region

Bangladesh family buying fish fingedrlings for stocking the pond on the farm, at a hatchery in haluaghat, mymensingh region. They are members of the garo tribal minority. Adding oxygen to the plastic bag of fish so they will survive longer in transit.

Bangladesh fish caught at a fish hatchery employing scientific methods at haluaghat, mymensingh region

Bangladesh farmers carrying fish fingerlings from a nearby hatchery to the ponds on their farm, kumargati village, mymensingh region

Bangladesh fish caught at a fish hatchery employing scientific methods at haluaghat, mymensingh region

Bangladesh family buying fish fingedrlings for stocking the pond on the farm, at a hatchery in haluaghat, mymensingh region. They are members of the garo tribal minority

Bangladesh family buying fish fingedrlings for stocking the pond on the farm, at a hatchery in haluaghat, mymensingh region. They are members of the garo tribal minority

Bangladesh farmers buying fish for breeding, fish hatchery employing scientific methods at haluaghat, mymensingh region

Bangladesh fish caught at a fish hatchery employing scientific methods at haluaghat, mymensingh region

Osprey (Pandion haliaetus) in an artificial nest, Sanibel Island, Florida, USA

Children catch and throw salmon over the access gate at the Salomon Gulch Hatchery near Valdez, Alaska. The gate opens and closes on a schedule to regulate the return of salmon to the hatchery.

Children catch and throw salmon over the access gate at the Salomon Gulch Hatchery near Valdez, Alaska. The gate opens and closes on a schedule to regulate the return of salmon to the hatchery.

Windsurfer throws a shove it at the Spring Creek Fish Hatchery, WA.

Children catch and throw salmon over the access gate at the Salomon Gulch Hatchery near Valdez, Alaska. The gate opens and closes on a schedule to regulate the return of salmon to the hatchery.

Windsurfer airs it out at the Spring Creek Fish Hatchery, WA.

Children catch and throw salmon over the access gate at the Salomon Gulch Hatchery near Valdez, Alaska. The gate opens and closes on a schedule to regulate the return of salmon to the hatchery.

A Sea Lion Swims Into The Fish Weir Area And Grabs A Pink Salmon (Oncorhynchus Gorbuscha), Allison Point, Outside Valdez, Alaska, United States Of America

A King Salmon, also known as Chinook salmon (Oncorhynchus tshawytscha), attempts to jump the falls at the Fish Hatchery pond, South-central Alaska; Anchorage, Alaska, United States of America

Fulton River Sockeye Salmon spawning enhancement facility, the largest of its kind in the world, Babine River, near Granisle, British Columbia

Salmon counting fence at Fulton River Enhancement Facility, the largest sockeye spawning channel in the world, Granisle, British Columbia

Mass of Sockeye salmon, Fulton River Enhancement Facility, Granisle, British Columbia