1,721,256 research outputs found
Age determination and growth of juveniles of the European hake, Merluccius merluccius (L., 1758), in the northern Tyrrhenian Sea (NW Mediterranean).
No full textThe aim of the present study was to provide an estimation of growth of juvenile European hake, Merluccius merluccius (L., 1758) (OSTEICHTHYES; MERLUCCIIDAE), by means of the analysis of otolith daily increments. Hake specimens were collected during trawl surveys carried out in the northern Tyrrhenian Sea (NW Mediterranean). The sagittae were removed from hakes <= 20cm total length. Left otoliths were ground and polished to obtain thin frontal sections. Otolith microstructure was analysed under a compound green light-polarising microscope. A power Curve with intercept was fitted to the length-age data to describe the growth of M. merluccius. According to the growth curve, a mean length of 18 cm was reached at the end of the first year of life. The validation of the otolith increment periodicity was performed by means of two indirect methods
Le couple Atlantique, ou ces portraits-là, sur fond d'amour et de mer
No full textAnalisi dei ritratti dei personagg
Notes on a large specimen of Thysanoteuthis rhombus Troschel, 1857 (Cephalopoda, Thysanoteuthidae) caught in the northern Tyrrhenian Sea
No full textObservations on the biology of Leptomysis gracilis, G. O. Sars, 1864, from the central Adriatic Sea.
No full textAccrescimento di Trachurus mediterraneus (Steindachner, 1868) nel mar Tirreno Settentrionale.
No full textMolecular identification of nemoatodes of the genus Anisakis from three fish species collected in the northern Tyrrhenian Sea.
No full textMolecular identification of Anisakis spp. from fishes collected in the Tyrrhenian Sea (NW Mediterranean).
No full textPreliminary observations on Anchialina agilis (G.O. Sars, 1877) and Westwoodilla rectirostris (Della Valle, 1893) from the central Adriatic Sea.
No full textMovements of three loggerhead sea turtles in Tuscany waters
No full textThe coastal waters along Tuscany (Central Italy)
are thought to represent a good foraging ground for loggerhead
turtles (Caretta caretta), especially, but not only, during the
juvenile phase. We describe the movements of three juvenile
loggerheads released along the Tuscany coast after having been
accidentally caught by fishermen and rehabilitated by recovery
centres of the region. The turtles were tracked by satellite for
20-125 days, displaying two main movement patterns. Two
turtles remained in neritic coastal waters for the whole duration
of tracking, while the third one moved north soon after
release, reaching the northern Ligurian Sea with an open-sea
route. These findings show that loggerheads can use Tuscany
waters both as a profitable long-term foraging site and as a
transit area during their movements towards other destinations
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