Ndaleni, P.M., James, N.C., South, J. orcid.org/0000-0002-6339-4225 et al. (1 more author) (Cover date: 2nd January 2024) Reproductive biologies of Psammogobius knysnaensis and Caffrogobius gilchristi in a warm-temperate South African estuary. African Journal of Aquatic Science. ISSN 1608-5914
Abstract
Reproductive biologies (spawning period, length at maturity and fecundity) of the Knysna sand goby Psammogobius knysnaensis and the Prison goby Caffrogobius gilchristi were investigated between September 2018 and August 2019 in the warm-temperate Sundays Estuary, South Africa. The two species reproduced during the same period (spring and summer) with peak reproduction occurring in January. P. knysnaensis egg production was higher than C. gilchristi and was not affected by fish size. Although C. gilchristi egg production increased with fish size, this was not significant. P. knysnaensis reached LM50 at smaller sizes than C. gilchristi. Reproductive periods were likely coupled with prey availability, as phytoplankton and zooplankton abundances are highest in warm-temperate estuaries during this period. The ability of these gobies to reproduce at small sizes (< 40 mm TL), which is an adaptive trait of many r-selected species, underpins their high abundance in South African estuaries as they are well adapted to stochastic environments.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2024 NISC (Pty) Ltd. This is an author produced version of an article published in African Journal of Aquatic Sciences. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | fecundity; goby; length at maturity; spawning |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Biological Sciences (Leeds) > School of Biology (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 26 Feb 2024 10:45 |
Last Modified: | 28 Mar 2025 11:59 |
Status: | Published online |
Publisher: | Taylor & Francis |
Identification Number: | 10.2989/16085914.2024.2319062 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:209551 |
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Filename: NdaleniAJAS_Feb2024.pdf
