Commercial fishing, for the most part, is carried out by means of trapnets and gillnets set during the open water season. The average-sized whitefish in the commercial catch measure inches in length and weigh 1. The largest individual on record was more than 42 pounds and was harvested from Lake Superior in While not typically noted as a game fish, in recent years the lake whitefish has been the object of an active sport fishery in many parts of its range.
Anglers catch it on a small hook usually baited with a fish egg. Michigan Sea Grant has worked with the commercial whitefish fisheries throughout the Great Lakes to help promote the native species.
Just as it was in the early days, lake whitefish is excellent to eat. Its mildness suits a variety of dishes, while it also adapts to almost any method of cooking. Great Lakes whitefish contains more omega-3 fatty acids than pink and sockeye salmon. However, most of its diet consists of insects, insect larvae, fish larvae, fish eggs, small shrimp, and other invertebrates. They catch most of their prey along the bottom of the lake or pond. Humans rely on this species for both commercial and recreational fishing.
People eat their meat, and also eat their eggs as caviar. While overfishing once plummeted the populations of this fish, it has recovered with the implementation of fishery management.
The IUCN currently has not evaluated this species. No, this whitefish does not make a good pet. It grows quite large to keep in a home aquarium, and honestly does not have any interesting qualities as a pet. Some aquariums house schools of this species. Because they reach respectable sizes, they house the schools in relatively large enclosures with cold water that replicates their natural habitats. Aquariums often keep this fish with other similar species.
You will not receive a reply. Submissions that include telephone numbers, addresses, or emails will be removed. Description Appearance Lake whitefish are olive-green to blue on the back, with silvery sides. They have a small mouth below a rounded snout, and a deeply forked tail. Natural History Habitat Whitefish are mostly found in larger lakes in Alberta, where they prefer deep, cool water.
Lake whitefish is a carnivore meat-eater. Its diet is based on shrimps, clams, snails, small fish and their eggs and insects. Natural enemies of lake whitefish are sea lamprey, trout, salmon, walleye, pike and humans. Lake whitefish swims in large schools. Lake whitefish resides in deep waters during the summer and winter. It migrates toward the shallow waters at the beginning of the spring and fall.
Mating season of lake whitefish takes place from mid October to early December. Spawning takes place during the night.
0コメント