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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Culture Techniques and Evaluation of Snail Consumption by Black Buffalo Ictiobus Niger

Guy, Emmet Liam 04 May 2018 (has links)
Black Buffalo Ictiobus niger are a catostomid species native to the Mississippi River Basin with declining populations. Aquaculture is a common component of recovery plans, however little information is published on catostomid culture methods. This study developed culture techniques for Black Buffalo including tank acclimation, induced spawning, larval rearing, and protein requirements. Fish needed a lengthy acclimation (> 2 months) to reduce signs of stress. After, an induced-spawning protocol was described with gonadotropin-releasing hormone analogue. Swim-up fry did not readily consume zooplankton at first feeding but began selecting for cladocerans one week after stocked in a rearing pond. The juvenile growth study found diets containing 41% crude protein are optimal for growth. Finally, trematodes harm catfish production, and Black Buffalo are a potential control option for catfish producers. However, Black Buffalo did not consume snails, the trematode’s intermediate host, suggesting they would not be an effective trematode control.

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