Browsing NINA Brage by Author "Weyl, Olaf Lawrence Friedrich"

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Evidence for overfishing of tigerfish Hydrocynus vittatus (Castelnau 1861) in the Kavango River, Namibia

Jacobs, F.J.; Næsje, Tor; Ulvan, Eva Marita; Hay, C.J.; Khaebeb, F.H.; Weyl, Olaf Lawrence Friedrich (Peer reviewed; Journal article, 2022)

The fishery for the African tigerfish Hydrocynus vittatus in northern Namibia makes a substantial contribution to surrounding food security and stimulates the local economy through subsistence and recreational fishing. ...
First observation of fouling of externally attached radio transmitters in an African river

Jacobs, Francois Jakob; Weyl, Olaf Lawrence Friedrich; Ulvan, Eva Marita; Hay, Clinton; Næsje, Tor (Others, 2020)

Fouling of externally attached tags is an important consideration in long-term tagging studies as it may affect fish behaviour and well-being. Two externally attached radio transmitters on African tigerfish Hydrocynus ...