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ผู้เขียน หัวข้อ: Experts evaluate commercial viability of mussel farming in Andalusia  (อ่าน 3532 ครั้ง)
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Mussel Mytilus galloprovincialis farming. (Photo: FAO/ FIS)

Experts evaluate commercial viability of mussel farming in Andalusia

SPAIN
Friday, August 13, 2010, 23:30 (GMT + 9)

A team of researchers in Huelva, have begun a project to assess the commercial viability of hatchery grown mussels (Mytilus galloprovincialis), compared to the naturally caught alternative.
 
Experts from the Centro Agua del Pino del Instituto Andaluz de Investigación y Formación Agraria, Pesquera, Alimentaria y de la Producción Ecológica (Ifapa) have obtained EUR 156,000 from the Ministry for the Economy, Innovation and Science to be able to implement the project in a "Feasible manner to be able to cultivate mussels in Andalusia from seeds produced in hatcheries."
 
"We obtained swimming larvae, which feed microalgae for 20 days in special tanks," said Ines Martinez, the principal investigator of the initiative.
 
"At the moment, we have two 2,000 litre tanks with larvae, four 150 litre tanks and another 2,000 litre tank with four month-old seeds, which are then deposited into containers until they become adults," he adds.
 
In Agua del Pino, there are currently 80,000 mussel seeds, which in late September will be moved to waters in the Straight of Gibraltar to record their progress.
 
"The most important phase of cultivation has already happened," says the researcher.
 
Numerous researchers are currently studying cultivation of mussels in their natural habitat and troughs due to their economic importance.
 
"However, there has been virtually no work done on the cultivation of mussels in temperate latitudes, such as in the Andalusian coast," says Martinez.
 
The water temperature is high in Andalusia, and this promotes faster growth (8 to 9 months) than in other regions such as Galicia (12 to 14 months).
 
But the Andalusian waters also cause the mussles to mate multiple times a year, reducing their weight and commercial quality.
 
"One option to aid this situation is to cultivate triploid specimens," says the expert. "The majority of studies have shown that these seeds grow and, as expected, a lack of reproduction occurs. These two characteristics make their size, during spawning seasons, is larger than their bodies."
 
According to a study on the Andalusian coast, only the coast of Malaga has a density of seed crops appropriate to maintain them without supplies from producers in other parts of Spain.
 
Locally produced mussel cultivation increased from 20 tonnes in 1997, to 768 tonnes in 2007.
 
By Analia Murias
editorial@fis.com
www.fis.com
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