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Tiger muskellunge
The tiger muskellunge (''Esox masquinongy X Esox lucius'') is a carnivorous fish, and is the usually sterile, hybrid offspring of the true muskellunge (''Esox masquinongy'') and the northern pike (''Esox lucius''). It lives in fresh water and its range extends to Canada, the Northeast, and the Midwest United States. It grows quickly; in one study, tiger muskie grew 1.5 times as fast as muskellunge.〔Brecka BJ, Hooe ML, Wahl DH. Comparison of Growth, Survival, and Body Composition of Muskellunge and Tiger Muskellunge Fed Four Commercial Diets The Progressive Fish Culturist 1995; 57: 37-43〕 Like other hybrid species, tiger muskie are said to have "hybrid vigor," meaning they grow faster and stronger than the parent fish, they are also less susceptible to disease. Trophy specimens weigh about 30 lb. Its main diet is fish and small birds. The tiger muskie and the muskie are called the fish of 10,000 casts due to the challenge involved in catching them.〔Sandell, George. Half a Million Muskie-Catching Fishing Facts. 1994. Published by Echo Printing Co., p. 21 ISBN 0-940107-07-4〕
==Distribution==
The tiger muskie lives in the lakes and quiet rivers in Canada, the Great Lakes, the Upper Mississippi Valley, and the Ohio and St. Lawrence Rivers. It is rarely found far from its natural waters except for stocked fish. Several states, including Minnesota, Michigan, New Hampshire, Washington, Massachusetts, Arkansas, Montana, Idaho, Utah, Colorado, New Mexico, and Wyoming stock tiger muskies. Each tiger muskie tends to inhabit the same areas of its lake from year to year. It tends toward shallower waters (6–9 ft deep) and travels half as much in the summer and fall than it does in the winter to spring, when it prefers deeper waters (15–30 ft deep).〔Tipping JM. Movement of Tiger Muskellunge in Mayfield Reservoir, Washington North American journal of Fisheries Management 2001; 21: 683-687〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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