Showing 1 - 20 results of 817 for search '"Fish stocks"', query time: 0.21s Refine Results
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    IMPORTANCE OF COMMERCIAL FISH STOCK AND FISHERY MANAGEMENT by G. A. Sudakov

    Published 2014-11-01
    Subjects: “…commercial fish stocks…”
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    Article
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    MAIN CAUSES AND REGULARITIES OF COMMERCIAL FISH STOCK VARIATIONS by G. A. Sudakov

    Published 2014-11-01
    Subjects: “…main causes and regularities of fish stock variability…”
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    Article
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    Nitrogen budget in recirculating aquaponic systems with different fish stocking density by Carmelo Maucieri, Carlo Nicoletto, Giampaolo Zanin, Marco Birolo, Gerolamo Xiccato, Paolo Sambo, Maurizio Borin

    Published 2020-09-01
    “…As in any agroecosystem, also in aquaponics the nitrogen (N) balance represents an important tool to evaluate sustainability, and to identify factors that can improve N use efficiency (NUE) and reduce N losses. In this respect, fish stocking density has been little investigated, hence this research aimed to evaluate the N balance of a low technology aquaponic (AP) system managed at two fish densities in comparison with a hydroponic system (HP). …”
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    Article
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    The impact of marine recreational fishing on key fish stocks in European waters. by Zachary Radford, Kieran Hyder, Lucía Zarauz, Estanis Mugerza, Keno Ferter, Raul Prellezo, Harry Vincent Strehlow, Bryony Townhill, Wolf-Christian Lewin, Marc Simon Weltersbach

    Published 2018-01-01
    “…The present study indicates that removals by MRF can represent a high proportion of the total removals for some European marine fish stocks, so inclusion in stock assessments should be routine. …”
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    Article
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    Spatial and Temporal Variability of Parasite Communities: Implications for Fish Stock Identification by Juan F. Espínola-Novelo, Marcelo E. Oliva

    Published 2021-12-01
    “…The spatial and temporal variability of parasite communities have received little attention when used as biological tags for identifying fish stocks. This study evaluated the potential spatial and temporal variability of the parasite communities affecting three marine fish species collected between 1993 and 2017. …”
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    Article
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    Optimal number ofsites in multi-site fisheries with fish stock dependent migrations by Ali Moussaoui, Pierre Auger, Christophe Lett

    Published 2011-05-01
    “…Under some assumption, we obtain either a stableequilibrium or a stable limit cycle which involves large cyclic variationsof the total fish stock and fishing effort. We show that there exists anoptimal number of fishing zones that maximizes the total catch atequilibrium. …”
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    Article
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    Optimal harvesting of fish stocks under a time-varying discount rate by Duncan, S, Hepburn, C, Papachristodoulou, A

    Published 2011
    “…Optimal control theory has been extensively used to determine the optimal harvesting policy for renewable resources such as fish stocks. In such optimisations, it is common to maximise the discounted utility of harvesting over time, employing a constant time discount rate. …”
    Journal article
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    Optimal harvesting of fish stocks under a time-varying discount rate. by Duncan, S, Hepburn, C, Papachristodoulou, A

    Published 2011
    “…Optimal control theory has been extensively used to determine the optimal harvesting policy for renewable resources such as fish stocks. In such optimisations, it is common to maximise the discounted utility of harvesting over time, employing a constant time discount rate. …”
    Journal article