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The lake chub is generally found throughout Canada up to the Arctic Circle. Some scattered populations are also present in the northern United States, more precisely in New England, Michigan, Iowa, Wisconsin, Minnesota, the Dakotas, Montana, Wyoming, Colorado, Washington, Idaho and Utah. The lake chub is also the only minnow known to live in ...
The number of species and definition of species limits in North American ciscoes is a matter of debate. Accordingly, Coregonus artedi may refer either in a narrow sense to one of the several types of cisco found e.g. in the Great Lakes, or in a broad sense to the complex of all ciscoes in continental North American lakes, Coregonus artedi sensu ...
Semotilus atromaculatus, known as the creek chub or the common creek chub, is a small minnow, a freshwater fish found in the eastern US and Canada.Differing in size and color depending on origin of development, the creek chub can usually be defined by a dark brown body with a black lateral line spanning horizontally across the body.
The chub fishery had nothing to do with the various cyprinid fish species known as chubs but was exclusively based on the various species of ciscoes. The fishery continued as cisco stocks fell and non-native species such as sea lamprey, rainbow smelt and alewife spread through the system and increased in abundance. Alewife, in particular, have ...
The deepwater cisco, also known as chubs in fishing terms, was prized for its larger-than-normal size. During this exploitation, the numbers of this species declined dramatically. The last deepwater cisco specimens were recorded in Lake Michigan in 1951 and Lake Huron in 1952. The species was declared extinct shortly after.
On the Atlantic Coast, in Maine, New Hampshire, New Brunswick, and Nova Scotia although it is considered an invasive species in Nova Scotia, the chain pickerel extend as far as 46°N. The fish inhabits fresh and brackish water from the Mississippi Valley. It also is commonly found in Lake Michigan and the lower portion of the Great Lakes. [5]
A major threat to the lake whitefish is an invasive parasite species, the sea lamprey. It is one of a number of species (in addition to the lake trout and lake herring) aggressively attacked by sea lamprey. In Lake Michigan the sea lamprey began to decimate indigenous fish populations in the 1930s and 1940s.
[3] [8] They are an intermediate host for the parasites Bothriocephalus cuspidatus, and Proteocephalus sp. which also are found in the crustaceans they eat and the fish species that prey on them. [8] The deepwater sculpin is an indicator species for the health of the deepwater communities in the lakes where it occurs. [3]