Experimental evidence for the biological species status in Lake Tana's Labeobarbus flock (Cyprinidae)
Abstract Lake Tana (Ethiopia) harbours the only known remaining intact species flock of large (max. 100 cm standard length, SL) cyprinid fishes (15 Labeobarbus spp.). In 'common garden' experiments progeny of the riverine spawning benthivorous L. tsanensis, and of the piscivorous L. trutti...
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Published in | Animal biology (Leiden, Netherlands) Vol. 60; no. 2; pp. 183 - 193 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
The Netherlands
Brill
01.01.2010
BRILL |
Subjects | |
Online Access | Get full text |
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Summary: | Abstract
Lake Tana (Ethiopia) harbours the only known remaining intact species flock of large (max. 100 cm standard length, SL) cyprinid fishes (15 Labeobarbus spp.). In 'common garden' experiments progeny of the riverine spawning benthivorous L. tsanensis, and of the piscivorous L. truttiformis and L. megastoma was raised under similar environmental conditions to test if interspecific morphological differentiation would occur. Interspecific morphological differences and divergence were clearly observed early in ontogeny (≤ 40 mm SL). This study is the first to demonstrate direct proof for the genetic basis of morphological differentiation among these labeobarbs, providing further support that Lake Tana's labeobarb species are true biological species. |
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Bibliography: | href:15707563_060_02_s007_text.pdf istex:78BFB7DC66F1A9A6D1943EDEEE14F3D8C1ECAEA5 ark:/67375/JKT-N2WHGCM8-3 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1570-7555 1570-7563 |
DOI: | 10.1163/157075610X491725 |