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  • 1
    Publication Date: 2019-05-02
    Description: The squid Loligo opalescens (Cephalopoda, Mollusca) was reared in artificial sea water in a closed system consisting of two 1300-l circular tanks. When the squids reached mantle lengths of 20 to 30 mm, they were transferred to a 10 000-l closed system raceway. From hatching, mantle length increased exponentially at a mean rate of 1.69% per day throughout the experiment. The largest and longest-lived squid attained a maximal size of 77 mm mantle length in 8 months. Only live food organisms, which consisted of copepods, other crustaceans and fishes, were accepted by the squids. Mortality, attributed to starvation and fin damage, was greatest during the first 20 days and again between days 45 and 70.
    Type: Article , PeerReviewed
    Format: text
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  • 2
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    In:  Journal of aquaculture and aquatic sciences , 3 (2). pp. 25-27.
    Publication Date: 2019-05-14
    Description: The calanoid copepod Acartia tonsa was cultured in rectangular tanks filled with 170L of natural sea water. Rice bran added to the culture water provided all the nutrient enrichment necessary to raise A. tonsa throughout its life cycle, thus eliminating the need for separately cultured phytoplankton. Four, month-long preliminary experiments produced maximum densities of copepodid stages including adults that ranged from 170 to 1,520 per L (x=679 per L). The time required to reach maximum density ranged from 6 to 33 days for nauplii and from 12 to 27 days for copepodid stages. The results are preliminary in nature but indicate future potential of this technique as a simple, inexpensive method for the mass culture of copepods.
    Type: Article , PeerReviewed
    Format: text
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