Taxonomy, common names and distribution of fish in the eastern arm of the Rift Valley drainage, Kenya.

Okeyo, D.O.

Taxonomy, common names and distribution of fish in the eastern arm of the Rift Valley drainage, Kenya.

This paper attempts to update information on scientific and recommended English common names and the distribution of fish species of Kenya occurring in the Eastern Arm of the Rift Valley drainage system. At least 20 fish families from 35 genera and 66 species occur in the drainage system, with Lake Turkana catchment having the richest species diversity at 50 (76%). Five (8 %) fish species have been introduced into the drainage, mostly for commercial purposes and sports, viz: in Lake Naivasha, largemouth bass, Micropterus salmoides; blue spotted tilapia, Oreochromis leucostictus; Athi River tilapia, Oreochromis spilurus niger; Zillii’s tilapia, Tilapia zillii; and in Lake Nakuru, a species tolerant to high salinities, the Lake Magadi tilapia, Oreochromis alcalicus grahami. These introductions may have caused, e.g., the extinction of the Naivasha lampeye, Aplocheilichthys sp. from Lake Naivasha. Most fishes occurring in the drainage are at times capable of living in both lacustrine as well as riverine conditions, except three (5 %), which tend to be entirely riverine. Two minnows, (i) Loveridge’s barb, Barbus loveridgii occurs in Amala River, an affluent of Lake Baringo; and (ii) Newmayer’s barb, Barbus neumayeri is spread out in several rivers, i.e., Suam in Mount Elgon, Subukia in the Lake Bogoria catchment, Seya in Isiolo district, Sinet near Loitoktok, Waseges in the Lake Bogoria catchment, and Kerio affluent in the Lake Turkana catchment. One cichlid, the Suguta tilapia, Oreochromis niloticus sugutae occurs in Suguta River and its tributaries. The exact distribution in northern Kenya of the Ethiopian barb, Barbus intermedius intermedius is lacking. Notes are included for selected fish species to clarify and to correct erroneous information occurring in the literature.

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Bibliographic Details
Main Author:	Okeyo, D.O.
Format:	Report Section biblioteca
Language:	English
Published:	European Commission 2004
Subjects:	Taxonomy, Geographical distribution, Biodiversity, Check lists, Freshwater fish, Inland fisheries, Lake fisheries, Micropterus salmoides, Oreochromis leucostictus, Oreochromis spilurus,
Online Access:	http://hdl.handle.net/1834/7187
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record_format	koha
spelling	dig-aquadocs-1834-71872021-05-19T06:15:18Z Taxonomy, common names and distribution of fish in the eastern arm of the Rift Valley drainage, Kenya. Status of fish common names in the Rift Valley drainage, Kenya Fish Biodiversity: Local Studies as Basis for Global Inferences, Okeyo, D.O. Taxonomy Geographical distribution Biodiversity Check lists Freshwater fish Inland fisheries Lake fisheries Micropterus salmoides Oreochromis leucostictus Oreochromis spilurus This paper attempts to update information on scientific and recommended English common names and the distribution of fish species of Kenya occurring in the Eastern Arm of the Rift Valley drainage system. At least 20 fish families from 35 genera and 66 species occur in the drainage system, with Lake Turkana catchment having the richest species diversity at 50 (76%). Five (8 %) fish species have been introduced into the drainage, mostly for commercial purposes and sports, viz: in Lake Naivasha, largemouth bass, Micropterus salmoides; blue spotted tilapia, Oreochromis leucostictus; Athi River tilapia, Oreochromis spilurus niger; Zillii’s tilapia, Tilapia zillii; and in Lake Nakuru, a species tolerant to high salinities, the Lake Magadi tilapia, Oreochromis alcalicus grahami. These introductions may have caused, e.g., the extinction of the Naivasha lampeye, Aplocheilichthys sp. from Lake Naivasha. Most fishes occurring in the drainage are at times capable of living in both lacustrine as well as riverine conditions, except three (5 %), which tend to be entirely riverine. Two minnows, (i) Loveridge’s barb, Barbus loveridgii occurs in Amala River, an affluent of Lake Baringo; and (ii) Newmayer’s barb, Barbus neumayeri is spread out in several rivers, i.e., Suam in Mount Elgon, Subukia in the Lake Bogoria catchment, Seya in Isiolo district, Sinet near Loitoktok, Waseges in the Lake Bogoria catchment, and Kerio affluent in the Lake Turkana catchment. One cichlid, the Suguta tilapia, Oreochromis niloticus sugutae occurs in Suguta River and its tributaries. The exact distribution in northern Kenya of the Ethiopian barb, Barbus intermedius intermedius is lacking. Notes are included for selected fish species to clarify and to correct erroneous information occurring in the literature. Published 2015-08-13T21:00:12Z 2015-08-13T21:00:12Z 2004 Report Section Not Known 1025-3971 http://hdl.handle.net/1834/7187 en ACP–EU Fisheries Research Report;14 pp.250-266 Kenya, Rift Valley, Naivasha L. Kenya, Rift Valley, Nakuru L. Kenya, Magadi L. Kenya, Rift Valley, Turkana L. European Commission Brussels, Belgium
institution	UNESCO
collection	DSpace
country	Francia
countrycode	FR
component	Bibliográfico
access	En linea
databasecode	dig-aquadocs
tag	biblioteca
region	Europa del Oeste
libraryname	Repositorio AQUADOCS
language	English
topic	Taxonomy Geographical distribution Biodiversity Check lists Freshwater fish Inland fisheries Lake fisheries Micropterus salmoides Oreochromis leucostictus Oreochromis spilurus Taxonomy Geographical distribution Biodiversity Check lists Freshwater fish Inland fisheries Lake fisheries Micropterus salmoides Oreochromis leucostictus Oreochromis spilurus
spellingShingle	Taxonomy Geographical distribution Biodiversity Check lists Freshwater fish Inland fisheries Lake fisheries Micropterus salmoides Oreochromis leucostictus Oreochromis spilurus Taxonomy Geographical distribution Biodiversity Check lists Freshwater fish Inland fisheries Lake fisheries Micropterus salmoides Oreochromis leucostictus Oreochromis spilurus Okeyo, D.O. Taxonomy, common names and distribution of fish in the eastern arm of the Rift Valley drainage, Kenya.
description	This paper attempts to update information on scientific and recommended English common names and the distribution of fish species of Kenya occurring in the Eastern Arm of the Rift Valley drainage system. At least 20 fish families from 35 genera and 66 species occur in the drainage system, with Lake Turkana catchment having the richest species diversity at 50 (76%). Five (8 %) fish species have been introduced into the drainage, mostly for commercial purposes and sports, viz: in Lake Naivasha, largemouth bass, Micropterus salmoides; blue spotted tilapia, Oreochromis leucostictus; Athi River tilapia, Oreochromis spilurus niger; Zillii’s tilapia, Tilapia zillii; and in Lake Nakuru, a species tolerant to high salinities, the Lake Magadi tilapia, Oreochromis alcalicus grahami. These introductions may have caused, e.g., the extinction of the Naivasha lampeye, Aplocheilichthys sp. from Lake Naivasha. Most fishes occurring in the drainage are at times capable of living in both lacustrine as well as riverine conditions, except three (5 %), which tend to be entirely riverine. Two minnows, (i) Loveridge’s barb, Barbus loveridgii occurs in Amala River, an affluent of Lake Baringo; and (ii) Newmayer’s barb, Barbus neumayeri is spread out in several rivers, i.e., Suam in Mount Elgon, Subukia in the Lake Bogoria catchment, Seya in Isiolo district, Sinet near Loitoktok, Waseges in the Lake Bogoria catchment, and Kerio affluent in the Lake Turkana catchment. One cichlid, the Suguta tilapia, Oreochromis niloticus sugutae occurs in Suguta River and its tributaries. The exact distribution in northern Kenya of the Ethiopian barb, Barbus intermedius intermedius is lacking. Notes are included for selected fish species to clarify and to correct erroneous information occurring in the literature.
format	Report Section
topic_facet	Taxonomy Geographical distribution Biodiversity Check lists Freshwater fish Inland fisheries Lake fisheries Micropterus salmoides Oreochromis leucostictus Oreochromis spilurus
author	Okeyo, D.O.
author_facet	Okeyo, D.O.
author_sort	Okeyo, D.O.
title	Taxonomy, common names and distribution of fish in the eastern arm of the Rift Valley drainage, Kenya.
title_short	Taxonomy, common names and distribution of fish in the eastern arm of the Rift Valley drainage, Kenya.
title_full	Taxonomy, common names and distribution of fish in the eastern arm of the Rift Valley drainage, Kenya.
title_fullStr	Taxonomy, common names and distribution of fish in the eastern arm of the Rift Valley drainage, Kenya.
title_full_unstemmed	Taxonomy, common names and distribution of fish in the eastern arm of the Rift Valley drainage, Kenya.
title_sort	taxonomy, common names and distribution of fish in the eastern arm of the rift valley drainage, kenya.
publisher	European Commission
publishDate	2004
url	http://hdl.handle.net/1834/7187
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Taxonomy, common names and distribution of fish in the eastern arm of the Rift Valley drainage, Kenya.

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