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Population structure and diel vertical migration of the euphausiid larvae in the opet southern Adriatic Sea (July 2003) (CROSBI ID 185042)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Gangai, Barbara ; Lučić, Davor ; Morović, Mira ; Brautović, Igor ; Miloslavić, Marijana Population structure and diel vertical migration of the euphausiid larvae in the opet southern Adriatic Sea (July 2003) // Crustaceana (Leiden), 85 (2012), 6; 659-684. doi: 10.1163/156854012X643942

Podaci o odgovornosti

Gangai, Barbara ; Lučić, Davor ; Morović, Mira ; Brautović, Igor ; Miloslavić, Marijana

engleski

Population structure and diel vertical migration of the euphausiid larvae in the opet southern Adriatic Sea (July 2003)

The composition, bathymetric distribution, and diel vertical migration of larval euphausiids in the oligotrophic southern Adriatic Sea were studied during the summer of 2003. Larvae of 11 species were identified. Of these, Thysanoessa gregaria is reported for the first time from the Adriatic Sea. Information is presented on the distribution and diel migrations of the five dominant species. Nematoscelis megalops furciliae had the widest bathymetric range, extending from surface to the bottom (1200 m) ; larvae of Stylocheiron maximum were found from 100 to 1200 m. Euphausia krohnii (calyptopes and furciliae), Stylocheiron abbreviatum calyptopes, and Stylocheiron longicorne furciliae ranged over 800 m. S. abbreviatum (furciliae) and S. longicorne (calyptopes) had more restricted bathymetric distributions. Different populations were associated with layers characterized by specific light intensities. Three migration patterns were observed: (i) nocturnal ascent to upper layers (E. krohnii, N. megalops, S. abbreviatum) ; (ii) scattered population through the water column (S. maximum) ; (iii) migration to upper layers at midday and night, and descent during the morning and evening (S. longicorne). Different stages of the same species showed different preferences for light intensity.

vertical distribution; weighted mean depth; euphausiid larvae; PAR; Mediterranean Sea

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Podaci o izdanju

85 (6)

2012.

659-684

objavljeno

0011-216X

10.1163/156854012X643942

Povezanost rada

Biologija

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