Universität zu Köln

Leiss, Laura, Rauhaus, Anna, Rakotoarison, Andolalao, Fusari, Charles, Vences, Miguel and Ziegler, Thomas . Review of threatened Malagasy freshwater fishes in zoos and aquaria: The necessity of an ex situ conservation network-A call for action. Zoo Biol.. HOBOKEN: WILEY. ISSN 1098-2361

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Abstract

Madagascar's biota is characterized by an extraordinary species richness, with a high degree of endemism. The island's freshwater habitats harbor numerous micro-endemic species, restricted to particular regions and thus particularly at risk of extinction, due to deforestation, overfishing, and introduction of exotic species. The present study investigates for which threatened Malagasy freshwater fish species ex situ populations have already been established, as a baseline to prioritize actions to develop an effective ex situ conservation breeding network. Populations in zoos and aquaria were primarily determined using the Zoological Information System. Of 173 fish species recorded from Malagasy freshwater habitats, 123 exclusively inhabit freshwater; 79 of these are endemic to Madagascar, and 50 are classified as threatened. Our survey found 21 Malagasy freshwater fish species kept in zoos worldwide, of which 19 are endemic and threatened (22 if counting species kept by private breeders). Nine of the 19 Malagasy freshwater fish species kept in zoos have successfully reproduced within the 12 months preceding our survey. The ex situ conservation activities for threatened Malagasy freshwater fishes thus have not improved significantly since the strong start in the early 2000s. More than half of the 50 threatened endemic Malagasy freshwater fish species (viz. 31 species) are not kept ex situ, including 11 species ranked as Critically Endangered. Based on these findings we call for a better distribution of offspring among institutions, including private breeders in the framework of citizen conservation initiatives; a closer connection of ichthyological field research in Madagascar with conservation breeding efforts to set up ex situ populations-both in Madagascar and abroad-of species not yet kept in captivity; and the development of effective, integrated in situ and ex situ conservation strategies.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Leiss, Laura UNSPECIFIED UNSPECIFIED UNSPECIFIED Rauhaus, Anna UNSPECIFIED UNSPECIFIED UNSPECIFIED Rakotoarison, Andolalao UNSPECIFIED UNSPECIFIED UNSPECIFIED Fusari, Charles UNSPECIFIED UNSPECIFIED UNSPECIFIED Vences, Miguel UNSPECIFIED UNSPECIFIED UNSPECIFIED Ziegler, Thomas UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-582912
DOI:	10.1002/zoo.21661
Journal or Publication Title:	Zoo Biol.
Publisher:	WILEY
Place of Publication:	HOBOKEN
ISSN:	1098-2361
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language MADAGASCAR; TELEOSTEI; GENUS; ATHERINOMORPHA; BIODIVERSITY; SILURIFORMES; BEDOTIIDAE; PHYLOGENY; REVISION; CATFISH Multiple languages Veterinary Sciences; Zoology Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/58291