Title:

Distribution and migration of the Caprivi killifish, Nothobranchius capriviensis Watters, Wildekamp and Shidlovskiy 2015, an assessment of its conservation status, and a note on other killifish in the same area

Publication Year:
2014
Abstract:

Nothobranchius capriviensis occurs in several ephemeral pans in eastern Zambezi Region of Namibia, usually in isolation but rarely in association with other fish species. During flooding episodes, however, N. capriviensis has been recorded at two road culverts at opposite ends of its main distribution range centered on the Salambala Conservancy. On one occasion the flow was inland from the Zambezi-Chobe floodplain during a high Zambezi flood. On the other, the flow was in the opposite direction towards Lake Liambezi as a result of very heavy rainfall draining from the Salambala Conservancy woodlands. On both occasions, other small floodplain fish species were also present. Nothobranchius species are thus shown to have the capacity to migrate to colonise, or re-colonise, pans that are then isolated when floods subside. The recognition of N. capriviensis as a separate species necessitated re-appraisal of its Red List status. Strict interpretation of IUCN Red List categories necessitates placing it under "Near Threatened", but any erosion of Salambala Conservency's protection status would immediately downgrade its status to "Endangered" under Red List Criteria B2ab(iii). Five other killifish in Zambezi Region are illustrated here.

Publication Title:

Journal of the American Killifish Association

Volume:
47
Issue:
4-6
Pages:
134-151
Item Type:
Journal Article
Language:
en

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