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Research and development of steelhe...

Chambers, Michael David.

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Research and development of steelhead trout Oncorhynchus mykiss aquaculture in sea cages.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Research and development of steelhead trout Oncorhynchus mykiss aquaculture in sea cages./
作者:	Chambers, Michael David.
面頁冊數:	158 p.
附註:	Source: Dissertation Abstracts International, Volume: 75-06(E), Section: B.
Contained By:	Dissertation Abstracts International75-06B(E).
標題:	Biology, General. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3579692
ISBN:	9781303790102

Research and development of steelhead trout Oncorhynchus mykiss aquaculture in sea cages.
Chambers, Michael David.

Research and development of steelhead trout Oncorhynchus mykiss aquaculture in sea cages. - 158 p.

Source: Dissertation Abstracts International, Volume: 75-06(E), Section: B.

Thesis (Ph.D.)--University of New Hampshire, 2013.

The overall research goal was to develop technological, behavioral and operational information that could enhance marine aquaculture in New England. Our first study field tested a copper alloy cage material (Seawire) to reduce bio-fouling, a major impediment to cage farming. We found that the Seawire significantly reduced bio-fouling. In the second study we investigated a bio-telemetry system (Hydroacoustic Technologies Incorporated) to monitor steelhead trout (Oncorhynchus mykiss) movement inside a net pen as the net was deformed by strong tidal currents (~0.50 m / sec.). Results showed that the net became deformed at currents ≥ 0.2 m / s, and at current speeds of 0.5 m / s, the net lost > 30% of its volume. Trout swimming behavior was influenced by tidal velocity. As velocity increased, trout exhibited rheotaxis, and used less of the cage volume. No significant day/night differences were found in swimming depth or speed. The third study explored the possibility that steelhead trout, a physostomous species, could be held in submerged net pens for prolonged periods of time. Treatments were sampled for growth, SGR, K, survival, skin and nose abrasions, and jumping behavior. Results indicated that trout could be submerged for days to weeks with no negative effects.

ISBN: 9781303790102Subjects--Topical Terms:

1018625
Biology, General.

Research and development of steelhead trout Oncorhynchus mykiss aquaculture in sea cages.
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245 1 0 $a Research and development of steelhead trout Oncorhynchus mykiss aquaculture in sea cages.
300 $a 158 p.
500 $a Source: Dissertation Abstracts International, Volume: 75-06(E), Section: B.
500 $a Adviser: Hunt Howell.
502 $a Thesis (Ph.D.)--University of New Hampshire, 2013.
520 $a The overall research goal was to develop technological, behavioral and operational information that could enhance marine aquaculture in New England. Our first study field tested a copper alloy cage material (Seawire) to reduce bio-fouling, a major impediment to cage farming. We found that the Seawire significantly reduced bio-fouling. In the second study we investigated a bio-telemetry system (Hydroacoustic Technologies Incorporated) to monitor steelhead trout (Oncorhynchus mykiss) movement inside a net pen as the net was deformed by strong tidal currents (~0.50 m / sec.). Results showed that the net became deformed at currents ≥ 0.2 m / s, and at current speeds of 0.5 m / s, the net lost > 30% of its volume. Trout swimming behavior was influenced by tidal velocity. As velocity increased, trout exhibited rheotaxis, and used less of the cage volume. No significant day/night differences were found in swimming depth or speed. The third study explored the possibility that steelhead trout, a physostomous species, could be held in submerged net pens for prolonged periods of time. Treatments were sampled for growth, SGR, K, survival, skin and nose abrasions, and jumping behavior. Results indicated that trout could be submerged for days to weeks with no negative effects.
520 $a Finally, NH commercial fishermen were successfully trained on small-scale, integrated multi-trophic aquaculture (IMTA) of steelhead trout, blue mussels (Mytilus edulis) and sugar kelp (Saccharine latissima ). The IMTA results demonstrated that nutrient extraction by the mussel and kelp exceeded the nutrient input from trout production. A simple economic analysis of small-scale trout aquaculture indicated a profit could be made, which could supplement the income of commercial fishermen. Lastly, market surveys and sales of steelhead trout suggested consumer demand for a locally raised product. Taste, texture, smell, and color all rated excellent in the survey forms.
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650 4 $a Agriculture, Fisheries and Aquaculture. $3 1020913
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