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The influence of environmental parameters on the growth and meat quality of the Mediterranean mussel Mytilus galloprovincialis (Mollusca: Bivalvia)

Author(s): Ana Gavrilovic | Jurica Jug-Dujakovic | Anika Marinovic Bonacic | Alexis Conides | Kruno Bonacic | Ana Ljubicic | Steven Van Gorder

Journal: Aquaculture, Aquarium, Conservation & Legislation
ISSN 1844-8143

Volume: 4;
Issue: 5;
Start page: 573;
Date: 2011;
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Keywords: mediterranean mussel | condition index | enviromental parameters | meat quality | temperature | salinity

In this study, changes of average monthly values of the condition index of Mediterraneanmussel M. galloprovincialis were investigated at seven different locations in the area of Bay of MaliSton, in the period from November 2008 to December 2009, as well as their relationship with thevariation of monthly values of ecological parameters (salinity, temperature, total, organic and inorganicparticulate matter). Concentrations of organic and inorganic particulate matter had the highestinfluence on the condition index at all locations, what indicates the importance of food availability, butalso its usability that is influenced by the relation between the concentration of organic and inorganicparticulate matter. Mean monthly values of meat indices of mussels at all locations showed statisticallysignificant spatial and temporal variations. This fact indicates that it is necessary to investigatevariations of the meat quality at number different locations within the same geografical area. Thatshould be the way for the selection of the production locations within the larger farming areas, and forthe strategical organization of the production in order to prolong the market supply with the highquality product. A significant statistical difference was recorded by comparison of the mean monthlyvalues of meat indices with the regard to the dept (1 and 4 m) at different locations. The statisticallysignificant differences in the meat quality of the Mediterranean mussel at the same location at differentdepths determined during our research, represent a significant economical problem. Producers willhave harvest size mussels of different market quality at the same location and the same productionunit. This shows that there is a need for applying appropriate equipment and production methods.

Tango Jona
Tangokurs Rapperswil-Jona

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