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Thesis (Master's)

University of Akureyri > Viðskipta- og raunvísindasvið > Meistaraprófsritgerðir >

Please use this identifier to cite or link to this item: http://hdl.handle.net/1946/25478

Title: 
  • An evaluation of the floating cage system for Eastern oyster (Crassostrea virginica) : aquaculture production in the north-central Gulf of Mexico
Degree: 
  • Master's
Abstract: 
  • In recent years, there has been a significant effort to improve production techniques and product quality for the growing demand of premium farm-raised oysters. The increased interest in off-bottom oyster farming along the north-central Gulf of Mexico (GOM) has provided industry leaders with a significant opportunity to target these specialty markets, capturing the strong demand, stable income, and longer growing season of the GOM. With recent advancements of cultured Gulf oysters into the regional and national half-shell oyster market, the need for industry-based research is in high demand. Through a three-factor field analysis, this study investigates optimal production efficiency and quality control methods for off-bottom oyster culture that will allow Gulf oyster farmers to become increasingly competitive in the half-shell market.
    This study investigates methods for improving the productivity and efficiency of the Flippable Floating Cage System (FFCS) in the north-central GOM, by comparing three parameters 1) ploidy (diploid vs. triploid), 2) stocking density (125, 150 &175) and 3) desiccation regime (weekly and biweekly for a 24-hour duration). Over a three-month period (Sept - Nov, 2015) the effects of these factors and their interactions are assessed through the response variables of shell dimensions, shell and tissue weight, shell morphology (cup shape, fan shape, condition index), biofouling accumulation, mud worm Polydora websteri abundance and oyster percent mortality. While all treatments used in this study produced high-quality oysters suitable for the premium half-shell industry, there were a number of overall trends identified amongst the tested factors that can serve as helpful recommendations for GOM farmers using the FFCS.

Description: 
  • Description is in Icelandic Verkefnið er unnið við Háskólasetur Vestfjarða
    Verkefnið er lokað til 1.5.2019.
Accepted: 
  • Jun 28, 2016
URI: 
  • http://hdl.handle.net/1946/25478


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