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The migratory behavior of adult sea ...

University of Minnesota.

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The migratory behavior of adult sea lampreys (Petromyzon marinus) in response to olfactory and temperature cues.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	The migratory behavior of adult sea lampreys (Petromyzon marinus) in response to olfactory and temperature cues./
作者:	Vrieze, Lance Allan.
面頁冊數:	138 p.
附註:	Adviser: Peter W. Sorensen.
Contained By:	Dissertation Abstracts International69-01B.
標題:	Agriculture, Fisheries and Aquaculture. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3295702
ISBN:	9780549405481

The migratory behavior of adult sea lampreys (Petromyzon marinus) in response to olfactory and temperature cues.
Vrieze, Lance Allan.

The migratory behavior of adult sea lampreys (Petromyzon marinus) in response to olfactory and temperature cues. - 138 p.

Adviser: Peter W. Sorensen.

Thesis (Ph.D.)--University of Minnesota, 2008.

Migratory adult sea lampreys (Petromyzon marinus ) utilize river water odor (partially comprised of a larval pheromone) to locate rivers for spawning. Three studies determined how critical this odor is for completing migration, what behaviors lampreys use to locate and track river odor, and how river odor interacts with temperature cues to guide migration. The first study determined the importance of olfaction for migration by releasing lampreys whose nares were occluded (N=1300) or left intact (N=1635) at 5 locations in Lake Huron and 4 locations within rivers. While only 3% of the occluded animals released in Lake Huron were captured in riverine traps, 5 to 20 times more intact animals were captured, indicating olfactory cues are very important to river localization. In contrast, odor appears to play a lesser role within rivers where intact animals released in rivers were captured upstream at a rate 1.7 to 3.6 times greater than occluded animals. A second study examined the behavioral mechanisms lampreys use to locate and track odorous river plumes in lakes. Animals (N=51) implanted with acoustical tags were tracked outside and within the Ocqueoc River plume in Lake Huron. Lampreys were mainly inactive during the day but at night moved continuously and actively (0.8 body lengths/second) with extensive vertical movements. Outside the plume, lamprey tracks were relatively straight with small turning angles, but when within the plume tracks were characterized by large turning angles as lampreys circled near the mouth. This combination of kineses and taxes appears well suited to helping lampreys locate and enter rivers whose plumes were found to vary considerably in horizontal and vertical extent. A third study used a laboratory maze to explore how temperature cues interact with river odor to guide migration. Although wanner temperatures alone were not attractive, they did increase swimming speed. River odor was attractive regardless of temperature and in combination with warmer temperatures caused lampreys to increase upstream movement. In conclusion, lacustrine migration in sea lampreys is an active and dynamic process reliant on olfactory cues found in rivers. The migratory pheromone has considerable potential for sea lamprey control in the Great Lakes.

ISBN: 9780549405481Subjects--Topical Terms:

1020913
Agriculture, Fisheries and Aquaculture.

The migratory behavior of adult sea lampreys (Petromyzon marinus) in response to olfactory and temperature cues.
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