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Recent records of Schedophilus ovalis (Osteichthyes, Centrolophidae) from Sardinian waters (Central-Western Mediterranean)
No full textThe occurrence of several young and adult specimens of Schedophilus ovalis (Cuvier, 1833), found at different depths along the coasts of Sardinia, was documented. Morphological and meristic characters of some specimens were reported. The recent increase in the presence of this species indicates that it is progressively colonising the Central-western Mediterranean
Considerations on recent findings of Fistularia commersonii Rüppell, 1838 off Sardinian coasts (Central-western Mediterranean)
No full textFifteen specimens of Fistularia commersonii (Syngnathiformes: Fistulariidae) were captured off Sardinian coasts from September 2007 to January 2008. Although reproductive data cannot confirm this species as a resident in these waters, the results presented indicate a sudden and significant diffusion of this Lessepsian migrant also in the western part of the Mediterranean Sea
Fistularia commersonii Rüppell, 1835: a lessepsian host carrier of Indo-Pacific parasites into the Mediterranean Sea
No full textTrophic interactions among three rajids, Raja asterias, Raja brachyura and Raja miraletus
No full textFistularia commersonii Rüppell, 1835: a lessepsian host carries of Indo-Pacific parasites into the Mediterranean Sea
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First evaluation of the relationships between the morphology of coral colonies and currents in Sardinian seas
No full textParasites of the Lessepsian sprinter Fistularia commersonii (Osteichthyes: Fistulariidae): an update after 15 years since its arrival in the Mediterranean Sea
No full textFistularia commersonii is a Lessepsian sprinter recorded for the first time in the eastern Mediterranean Sea (Israel) in 2000. Within a few years, this species reached the central Mediterranean (2004, Sicily) and, subsequently, the western Basin (2007, Iberian Peninsula). Merella et al. (2007) and Pais et al. (2007) described its parasites in the Mediterranean Sea from one fish caught off the Sardinian coast and six from North Africa, finding native generalist species, but also two Indo-Pacific digeneans: Allolepidapedon fistulariae and Neoallepidapedon hawaiiense. From 2007 to 2014, the capture of 24 specimens of F. commersonii in Sardinian waters allowed to add information about its parasites in the Mediterranean, and to evaluate their dynamics throughout the host migration path. Twenty parasite species/taxa were found, adding 13 taxa to the former Mediterranean list. The results confirmed earlier data: A. fistulariae, Nybelinia africana and Phyllobothriidae (Cestoda), Hysterothylacium spp. (Nematoda) and Gnathiidae (Crustacea) were among the most frequent parasites (P>15%); besides, two other taxa showed prevalence higher than 15%: Pseudogrillotia sp. (Cestoda) and Breizacanthus cf. ligur (Acanthocephala). Neoallepidapedon hawaiiense, previously recorded in North Africa, was not found in the present specimens. The results suggest that a non-indigenous species is not always subjected to the release from its natural enemies. Actually, the parasite fauna of F. commersonii increased throughout the host migration path, acquiring new generalist species, but also conserving the natural parasite A. fistulariae, that seemingly has been able to close its life cycle in the Mediterranean Sea
Trophic interactions among Chondrichthyans in the central-western Mediterranean. Biologia marina mediterranea
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