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Invasionspotenzial und Biologie von Cyprinus carpio (Karpfen)

Invasionspotenzial und Biologie von Cyprinus carpio (Karpfen)

A. Gopesh / Amitabh Chandra Dwivedi / Ravindra Kumar Pathak

132,48 €
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Editorial:
KS OmniScriptum Publishing
Año de edición:
2026
Materia
Biologia, ciencias de la vida
ISBN:
9786209793264
132,48 €
IVA incluido
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Cyprinus carpio wurde zwischen 1939 und 1957 zu Aquakulturzwecken in Indien eingeführt und trägt mehr als 7,17 % zur gesamten Binnenfischproduktion bei. Im Vergleich zum Ganges trug C. carpio im Yamuna-Fluss am meisten zur Fangmenge bei. Die vorliegende Untersuchung ergab, dass die Wachstumsrate im Yamuna-Fluss höher war als im Ganges-Fluss bei Allahabad. In den ersten beiden Jahren wurden im Yamuna-Fluss Wachstumsraten von 20,69 cm und 8,36 cm und im Ganges-Fluss von 19,03 cm und 7,46 cm verzeichnet. Im Yamuna wurden Fische der Altersgruppe 0+ bis 13+ registriert, während im Ganga Fische der Altersgruppe 0+ bis 11+ gefunden wurden. Fische der Altersgruppe 0+ bis 2+ wurden im Yamuna (50,51 %) im Vergleich zum Ganga (45,52 %) stark befischt. Das Geschlechterverhältnis von C. carpio var. communis entsprach in den Flüssen Ganga und Yamuna nahezu dem erwarteten Geschlechterverhältnis (1:1). Abschließend lässt sich feststellen, dass C. carpio ein starker Eindringling in den Flüssen Ganga und Yamuna in Allahabad, Indien, ist.

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