- Title
- Temporal and spatial variability in the abundance, biomass and distribution of Palaemon peringueyi (Decapoda: Crustacea) are influenced by biological but not physico-chemical factors in the permanently open Kariega Estuary, South Africa
- Creator
- Nyalungu, Nonhlanhla P, Hodgson, Alan N, Froneman, P William, Dopolo, M, Masubelele, M
- Date
- 2014
- Type
- text
- Type
- article
- Identifier
- http://hdl.handle.net/10962/68106
- Identifier
- vital:29200
- Identifier
- https://doi.org/10.2989/16085914.2014.960792
- Description
- Publisher version
- Description
- Biological and physico-chemical factors affecting abundance and biomass of shrimp Palaemon peringueyi were investigated in 2010–2011 in the lower, middle and upper reaches of the freshwater-deprived permanently open Kariega Estuary. Shrimp abundance and biomass ranged from 0 to 88 ind. m−2 and 0 to 4.4 g wwt m−2, respectively. Shrimps were most abundant in the lower reach, and highest abundances and biomasses were recorded in the lower reach in June when salinities were low. The shrimps were almost always absent in the upper reach. Juveniles were found mostly in the lower and middle reaches, whereas adults were distributed in all three reaches. Regression analyses showed no statistically significant relationship for either abundance or biomass of the shrimps with temperature, salinity and dissolved oxygen (p > 0.05). The relationship between shrimp abundance and biomass and vegetation cover was positive and statistically significant (R2 = 0.109 and 0.185, respectively; p < 0.05). Vegetation cover plays an important role in determining the presence, distribution and abundance or biomass of P. peringueyi in this estuary.
- Format
- 8 pages, pdf
- Publisher
- Taylor & Francis
- Language
- English
- Relation
- African Journal of Aquatic Science, Nyalungu, N.P., Hodgson, A.N., Froneman, P.W., Dopolo, M. & Masubelele, M. (2014) Temporal and spatial variability in the abundance, biomass and distribution of Palaemon peringueyi (Decapoda: Crustacea) are influenced by biological but not physico-chemical factors in the permanently open Kariega Estuary, South Africa, African Journal of Aquatic Science, 39(4), 435-442, DOI: 10.2989/16085914.2014.960792, African Journal of Aquatic Science volume 39 number 4 435 442 2014 1727-9364
- Rights
- Taylor & Francis
- Rights
- Use of this resource is governed by the terms and conditions of the National Library of South Africa Copyright Act (http://www.nlsa.ac.za/downloads/Copyright Act.pdf)
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Hodgson, Alan N (Prof)
Froneman, Pierre William (Prof)
RU Department of Zoology and Entomology
SDG 14. Life Below Water
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