Dasyatis pastinaca (Linnaeus, 1758)

Ponte, Dário, Barcelos, Luís M. D., Santos, Cristina, Medeiros, João & Barreiros, João P., 2016, Diet of Dasyatis pastinaca and Myliobatis aquila (Myliobatiformes) from the Azores, NE Atlantic, Cybium 40 (3), pp. 209-214 : 211

Dasyatis pastinaca

A total of 23 individuals of D. pastinaca were sampled, with a VI of 56.5% ( Fig. 2 ). Sixty-five prey items, belonging to seven taxa, were found. Indexes were calculated ( Tab. I).

The most common taxa were decapod crustaceans (57.2 %IRI), followed by polychaetes (18.2 %IRI). Teleost fish appear with only 0.5 %IRI. Within the decapod prey group, Pachygrapsus marmoratus (Fabricius, 1787)

accounted for 53% by weight, Scyllaridae for 13% and unidentified species for 34%.

Figures

Figure 2. - Cumulated trophic diversity and number of sampled stomachs from Dasyatis pastinaca from Terceira Island, Azores, NE Atlantic.