PREY SELECTION AND DIET COMPOSITION OF LARVAL PIKE, ESOX LUCIUS L., 1758, IN LAKE ISASZEG, HUNGARY
[ N/A ]
Tarih
2017
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Parlar Scientific Publications (P S P)
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this study, Northern Pike larvae's digestive tract contents were examined inhabiting in Isaszeg reservoir lake, Hungary. In totally 19 thousand varieties of nutrients were found out, 12 of them derived from zooplankton and 7 of them from phytoplankton. Northern Pike larvae's constitutive nutriment sources were zoological originated. Geometric Importance Index (GII) were highest for Bosmina sp. with 1097.49 in this specie's larval nutrition. This was followed by Chydorus sp. (503.836) and Thermocyclops sp. (493.299) respectively. Pike starts to exogenous feeding at 12 mm length. In contrast to GII, Selectivity index (SI) were revealed that Thermocyclops sp. were preferred by pike larvae as the main food organism.
Açıklama
Anahtar Kelimeler
Larval Pike, Esox lucius, Diet Composition, Geometric Index of Importance (GII) Selectivity Index (SI)
Kaynak
Fresenius Environmental Bulletin
WoS Q Değeri
Q4
Scopus Q Değeri
Cilt
26
Sayı
7
