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Alpine and Apennine barriers determining the differentiation of the rudd (Scardinius erythrophthalmus L.) in the Italian peninsula (2004)

Stefani, F. ; Galli, P. ; Crosa, G. ; [et al.]

Oxford, UK : Munksgaard International Publishers

Ecology of freshwater fish 13 (2004), S. 0

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ISSN: 1600-0633

Source: Blackwell Publishing Journal Backfiles 1879-2005

Topics: Biology , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

Notes: Abstract – A phylogeographic study of rudd Scardinius erythrophthalmus L. (Pisces: cyprinidae) was addressed to determine the differentiation of Italian populations in relation to the presence of mountain barriers, which identify two biogeographic districts (Padano-Venetian, Tuscano-Latium). At this scope, 409 bp long sequences of mtDNa cytochrome b gene were obtained from Italian and central European samples. Italian rudds phylogeny showed low level of divergence which although resulted from the central European haplotypes. The genetic structure of haplotypes in the studied districts revealed a significant recent fragmentation event. The Padano-Venetian populations showed patterns of past range expansion caused by the specie dispersion by river connections occurred during Pleistocene. This pattern provides evidence for (i) the role of Alps as a barrier for rudd dispersion; (ii) a significant genetic structure among the studied districts related to recent isolation events by the Apennine barrier; (iii) the role of Pleistocene sea level variations in determining phylogeography of the Padano-Venetian populations.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1111/j.1600-0633.2004.00060.x

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Distribution of Anisakis simplex in fish caught in the Ligurian Sea (2000)

Manfredi, M. T. ; Crosa, G. ; Galli, P. ; [et al.]

Springer

Parasitology research 86 (2000), S. 551-553

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ISSN: 1432-1955

Source: Springer Online Journal Archives 1860-2000

Topics: Biology , Medicine

Notes: Abstract A total of 822 individuals of 5 fish species were sampled in the western coastal area of the Mediterranean Sea and examined for the presence of Anisakis simplex larvae in the body cavity, muscle, and viscera. A. simplex mean intensity (mI) and prevalence (Pr) values were very high in the common scad (Trachurus trachurus; Pr 80–100%, mI 19.3–36.8) and the blue scad (T. picturatus; Pr 80–100%, mI 18.2–70.7), moderate in the blue whiting (Micromesistius poutassou), and low in the red mullet (Mullus barbatus) and the striped mullet (M. surmuletus). The larval burden was strongly related to host length in the common and blue scad.