An assessment of the reproductive biology of the Marico barb Barbus motebensis from the upper Groot Marico catchment, South Africa

D. Kindler; G. M. Wagenaar; O. L.F. Weyl

doi:10.2989/16085914.2015.1106400

An assessment of the reproductive biology of the Marico barb Barbus motebensis from the upper Groot Marico catchment, South Africa

D. Kindler, G. M. Wagenaar, O. L.F. Weyl

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

Barbus motebensis is endemic to the Groot Marico River catchment in the North West province, South Africa, and is considered of particular conservation importance due to being Red-Listed as Vulnerable. Due to its vulnerable conservation status, the aim of this study was to provide information on its condition factor, breeding season, gonadosomatic index, fecundity range and length at maturity from specimens collected by means of electrofishing and seine-netting between November 2012 and May 2014 from the Draaifonteinspruit and Kaaloog se Loop. Length at maturity was estimated as 37.5 mm TL for males and 44.5 mm TL for females. Microscopic gonad staging and gonadosomatic index demonstrated that B. motebensis has an extended breeding season from spring to summer. Relative (578 eggs g⁻¹) and absolute (3 728 eggs) fecundity were relatively high for small barbs.

Original language	English
Pages (from-to)	425-431
Number of pages	7
Journal	African Journal of Aquatic Science
Volume	40
Issue number	4
DOIs	https://doi.org/10.2989/16085914.2015.1106400
Publication status	Published - 16 Dec 2015
Externally published	Yes

Keywords

condition factor
fecundity
gonadosomatic index
histology
length at maturity
spawning season

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Aquatic Science

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10.2989/16085914.2015.1106400

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title = "An assessment of the reproductive biology of the Marico barb Barbus motebensis from the upper Groot Marico catchment, South Africa",

abstract = "Barbus motebensis is endemic to the Groot Marico River catchment in the North West province, South Africa, and is considered of particular conservation importance due to being Red-Listed as Vulnerable. Due to its vulnerable conservation status, the aim of this study was to provide information on its condition factor, breeding season, gonadosomatic index, fecundity range and length at maturity from specimens collected by means of electrofishing and seine-netting between November 2012 and May 2014 from the Draaifonteinspruit and Kaaloog se Loop. Length at maturity was estimated as 37.5 mm TL for males and 44.5 mm TL for females. Microscopic gonad staging and gonadosomatic index demonstrated that B. motebensis has an extended breeding season from spring to summer. Relative (578 eggs g−1) and absolute (3 728 eggs) fecundity were relatively high for small barbs.",

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AU - Weyl, O. L.F.

PY - 2015/12/16

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N2 - Barbus motebensis is endemic to the Groot Marico River catchment in the North West province, South Africa, and is considered of particular conservation importance due to being Red-Listed as Vulnerable. Due to its vulnerable conservation status, the aim of this study was to provide information on its condition factor, breeding season, gonadosomatic index, fecundity range and length at maturity from specimens collected by means of electrofishing and seine-netting between November 2012 and May 2014 from the Draaifonteinspruit and Kaaloog se Loop. Length at maturity was estimated as 37.5 mm TL for males and 44.5 mm TL for females. Microscopic gonad staging and gonadosomatic index demonstrated that B. motebensis has an extended breeding season from spring to summer. Relative (578 eggs g−1) and absolute (3 728 eggs) fecundity were relatively high for small barbs.

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KW - fecundity

KW - gonadosomatic index

KW - histology

KW - length at maturity

KW - spawning season

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ER -

An assessment of the reproductive biology of the Marico barb Barbus motebensis from the upper Groot Marico catchment, South Africa

Abstract

Keywords

ASJC Scopus subject areas

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