Swimming stimulates oocyte development in European eel
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Tartalom: http://real.mtak.hu/6146/
Archívum: MTA Könyvtár
Gyűjtemény: Status = Published



Type = Article
Cím:
Swimming stimulates oocyte development in European eel
Létrehozó:
Palstra, A.
Curiel, D.
Fekkes, M.
Székely, Csaba
Kiadó:
Elsevier
Dátum:
2007
Téma:
QE08 Hydrosphere. Hydrology / hidroszféra, hidrológia
QH Natural history / természetrajz
SH Aquaculture. Fisheries. Angling / vizi növény-és állattartás, halászat, sporthorgászat
SV Veterinary science / állatorvostudomány
Tartalmi leírás:
In this study, we subjected eels from Lake Balaton (Hungary) to a swimming period of 1 week and 2 or 6 weeks. Most eels were
silver and were 13–21 years old. Time dependent changes in morphometrical parameters and developmental characteristics of the
oocytes were determined. Already after 1 week of swimming, the gonadal mass increased and oocytes became larger, filled with
large numbers of lipid droplets. After 2 and 6 weeks of swimming we found in addition a significant enlargement of the eyes,
which is a sign of sexual maturation. In contrast to the resting eels, that had oocytes in the primary growth phase (stage 1–2); the
swimming eels had oocytes in stage 3; the cortical alveolus or lipid droplet stage. The results indicate that lipid mobilisation
induced by swimming is a requirement for the natural incorporation of lipid droplets in the oocytes, a crucial step in oocyte
maturation. As the Balaton eels responded stronger to swimming than young farmed eels, it is suggested that older eels are more
sensitive for maturation triggers.
Nyelv:
angol
Típus:
Article
PeerReviewed
info:eu-repo/semantics/article
Formátum:
text
Azonosító:
Palstra, A. and Curiel, D. and Fekkes, M. and Székely, Csaba (2007) Swimming stimulates oocyte development in European eel. AQUACULTURE, 270 (1-4). pp. 321-332. ISSN 0044-8486
Kapcsolat:
doi:10.1016/j.aquaculture.2007.04.015