Size analysis of inorganic particles in the alimentary tracts of Mediterranean mullet species suitable for aquaculture |
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| Institution: | 1. Florida Fish and Wildlife Conservation Commission, Fish and Wildlife Research Institute, 100 8th Avenue SE, St. Petersburg, FL 33701, USA;2. University of South Florida, College of Marine Science, 140 7th Street S, St. Petersburg, FL 33701, USA;1. Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Via Fossato di Mortara 17, 44121 Ferrara, Italy;2. AZTI-Tecnalia, Marine Research Division, Herrera Kaia, Portualdea s/n, 20110 Pasaia, Spain;3. ARPA FVG, Osservatorio Alto Adriatico, Via La Marmora 13, 34139 Trieste, Italy;4. Department of Biology, University of Pisa, Via Derna 1, 56126 Pisa, Italy;5. CNR-ISMAR, Arsenale di Venezia, Tesa 104, 30122 Venezia, Italy |
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| Abstract: | Size analyses of inorganic particles found in alimentary tracts were made for five species of Mediterranean mullets (Mugil cephalus, Liza ramada, L. aurata, L. saliens and Chelon labrosus) from two locations. M. cephalus, L. aurata and C. labrosus from a Sardinian lagoon (characterized by a substrate of sand/fine sand sediment 500-125 μm) had a preference for fine sands (250-125 μm). M. cephalus and L. aurata from a Policoro fish pond (with a substrate of fine sand/silt-clay sediments (250-<63μm) also selected fine sands, but L. ramada selected exclusively for silt-clays (<63 μm). Correlation coefficients with statistical significance indicated the ability of M. cephalus to exploit a wider range of substrates; L. aurata, L. saliens and C. labrosus were less adaptable, and L. ramada preferred only the silt-clay fraction. |
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