Pregled bibliografske jedinice broj: 1231303
Feeding habits of four-spotted megrim, Lepidorhombus boscii (Risso, 1810) from the eastern Adriatic Sea
Feeding habits of four-spotted megrim, Lepidorhombus boscii (Risso, 1810) from the eastern Adriatic Sea // 2nd Southeast European Ichthyological Conference (SEEIC 2022)
Supetar, Hrvatska, 2022. str. 43-43 (poster, međunarodna recenzija, sažetak, znanstveni)
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Naslov
Feeding habits of four-spotted megrim, Lepidorhombus
boscii (Risso, 1810) from the eastern Adriatic Sea
Autori
Ugrin, Nika ; Šantić, Mate ; Krstulović Šifner, Svjetlana
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
ISBN
978-953-7914-10-3
Skup
2nd Southeast European Ichthyological Conference (SEEIC 2022)
Mjesto i datum
Supetar, Hrvatska, 12.10.2022. - 15.10.2022
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
diet analysis, seasonal variation, Lepidorhombus boscii, Adriatic sea.
Sažetak
The feeding habits of the four-spotted megrim, Lepidorhombus boscii from the eastern Adriatic Sea were analysed. Stomach contents of 1070 specimens, 507 females and 455 males from 12.5 to 34.0 cm of total length (Lt), were studied. The samples were collected by the bottom-trawl net from July 2020 to June 2021. Percentage of empty stomachs was 63.27%. The analysis showed that four-spotted megrim is a carnivore. Moreover, it was found that there is no statistically significant difference in the food composition between seasons and sex. Three groups of prey were found in the analysed stomachs: Pisces, Crustacea and Mollusca. According to the number of prey, Crustacea and Mollusca were dominant, while Pisces was the least represented group. The essential foods were Crustacea (IRI = 5338.98 ; MFI = 2336.27 ; Q = 2496.33), Mollusca (IRI = 979.72 ; MFI = 570.36 ; Q = 551.17) and Pisces (IRI = 397.78 ; MFI = 193.21 ; Q = 188.91). Among Crustacea, the most important food were species Parapeneus longirostris (IRI = 1028.66 ; MFI = 491.03 ; Q = 482.71), Goneplax rhomboides (IRI = 530.60 ; MFI = 205.18 ; Q = 204.84) and Anuropodione amphiandra (IRI = 119.752) ; Q = 68.87), and Alloteuthis media (IRI = 333.42 ; MFI = 203.52 ; Q = 198.88) within the group of Mollusca. All other prey species found in stomachs were secondary food. Crustacea was the most important prey group for both sexes in all seasons. Pisces and Mollusca are most important for both sexes in autumn and winter, while in spring and summer they are secondary food.
Izvorni jezik
Engleski
Znanstvena područja
Biologija
POVEZANOST RADA
Ustanove:
Prirodoslovno-matematički fakultet, Split,
Sveučilište u Splitu Sveučilišni odjel za studije mora
