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Theodorou J.A.,Technological Educational Institution TEI of Western Greece | James R.,University of Portsmouth | Tzovenis I.,National and Kapodistrian University of Athens | Hellio C.,University of Western Brittany
Journal of Shellfish Research | Year: 2015

The fan mussel Pinna nobilis (Linnaeus, 1758) is an endangered bivalve species and is endemic to the Mediterranean Sea. Juvenile animals have been found growing on mussels Mytilus galloprovincialis (Lamarck, 1819) long line aquaculture bounces and ropes within the Maliakos Gulf (Aegean Sea). Animals were sampled from the harvested mussel lines. The results show twelve juvenile P. nobilis per ton of harvested M. galloprovincialis.

Theodorou J.A.,Technological Educational Institution TEI of Western Greece | Perdikaris C.,Regional Unit of Thesprotia | Filippopoulos N.G.,Institute of Business Administration
Journal of Applied Aquaculture | Year: 2015

Marine aquaculture in Greece is a relatively new industry based on the culture of aquatic species such as the Mediterranean sea bass (Dicentrarchus labrax), gilthead sea bream (Sparus aurata), and Mediterranean mussel (Mytilus galloprovincialis). In the early 1980s, the results of research and development were applied to develop pilot semiacademic commercial farms. Such farms were gradually moved to the industrial scale of today, producing some 80,00–120,000 tons of finfish and up to 25,000–35,000 tons of mussels annually. The problems encountered during the adaptation of innovation to the production and management of this blue revolution is critically discussed from the early developmental phases up to the present. © , Copyright © Taylor & Francis Group, LLC.

Theodorou J.A.,Ghent University | Theodorou J.A.,Technological Educational Institution TEI of Western Greece | Tzovenis I.,National and Kapodistrian University of Athens | Adams C.M.,University of Florida | And 2 more authors.
Journal of Shellfish Research | Year: 2014

Public support of mussel farming in Greece is an important factor because of its financial viability. The profitability of the activity is seriously reduced in small farms (1-3 ha) as a result of their high production costs; however, small farms represent a major part of the industry. Mussel farming is an extensive activity, with space availability regulated by public administrators via licensing of marine cultivation area property rights. The available space, though, is limited and, consequently, impedes any future expansion, restricting the production capacity of small farms. Nevertheless, the cost of new establishments and the modernization of existing ones (suitable boats, grading equipment, and so on) is affordable only by the larger companies. For small farms, it seems harder to recruit the large labor teams needed to work on a seasonal basis because this is the optimum to effect least operational costs, as shown by sensitivity analyses. In conclusion, for financial sustainability this sector needs to be restructured and organized into larger schemes, such as with producer organizations or cooperatives, to achieve economies of scale.

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