Influence of Environmental Variables on Planktonic and Phytobenthic Communities in Earthen Ponds at Makoba, Zanzibar
A study was conducted between July 2002 and June 2003 to assess the role of salinity, temperature, pH and dissolved oxygen on the abundance of planktonic (phyto- and zooplankton) and phytobenthic (algal mats) communities in shallow (40 cm depth) earthen ponds at Makoba, Zanzibar. Among the zooplankt...
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Western Indian Ocean Journal of Marine Science
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ftjafricanj:oai:ojs.ajol.info:article/28456 2023-05-15T18:49:42+02:00 Influence of Environmental Variables on Planktonic and Phytobenthic Communities in Earthen Ponds at Makoba, Zanzibar M S Kyewalyanga A W Mwandya 2007-10-08 application/pdf http://ajol.info/index.php/wiojms/article/view/28456 en eng Western Indian Ocean Journal of Marine Science http://ajol.info/index.php/wiojms/article/view/28456 Western Indian Ocean Journal of Marine Science; Vol 3, No 2 (2004); 123-134 earthen ponds planktonic organisms algal mats environmental variables Peer-reviewed Article 2007 ftjafricanj 2010-01-05T09:26:41Z A study was conducted between July 2002 and June 2003 to assess the role of salinity, temperature, pH and dissolved oxygen on the abundance of planktonic (phyto- and zooplankton) and phytobenthic (algal mats) communities in shallow (40 cm depth) earthen ponds at Makoba, Zanzibar. Among the zooplankton, rotifer abundance peaked during the rainy period (salinity of 27–42‰) while protozoa and copepods were most abundant during the dry period (max salinity of 70‰). However, no season effects were seen on the phytobenthos. The most abundant genera were Pseudonitzschia sp., Schizothrix sp., Microcoleus sp. and Oscillatoria sp. and in general, algal mats were available throughout the year. Other variables such as temperature, pH and oxygen concentration did not show significant fluctuations over the study period. Keywords: earthen ponds, planktonic organisms, algal mats, environmental variables West Indian Ocean Journal of Marine Science Vol. 3 (2) 2004: pp. 123-134 Article in Journal/Newspaper Copepods Rotifer AJOL - African Journals Online Indian |
institution |
Open Polar |
collection |
AJOL - African Journals Online |
op_collection_id |
ftjafricanj |
language |
English |
topic |
earthen ponds planktonic organisms algal mats environmental variables |
spellingShingle |
earthen ponds planktonic organisms algal mats environmental variables M S Kyewalyanga A W Mwandya Influence of Environmental Variables on Planktonic and Phytobenthic Communities in Earthen Ponds at Makoba, Zanzibar |
topic_facet |
earthen ponds planktonic organisms algal mats environmental variables |
description |
A study was conducted between July 2002 and June 2003 to assess the role of salinity, temperature, pH and dissolved oxygen on the abundance of planktonic (phyto- and zooplankton) and phytobenthic (algal mats) communities in shallow (40 cm depth) earthen ponds at Makoba, Zanzibar. Among the zooplankton, rotifer abundance peaked during the rainy period (salinity of 27–42‰) while protozoa and copepods were most abundant during the dry period (max salinity of 70‰). However, no season effects were seen on the phytobenthos. The most abundant genera were Pseudonitzschia sp., Schizothrix sp., Microcoleus sp. and Oscillatoria sp. and in general, algal mats were available throughout the year. Other variables such as temperature, pH and oxygen concentration did not show significant fluctuations over the study period. Keywords: earthen ponds, planktonic organisms, algal mats, environmental variables West Indian Ocean Journal of Marine Science Vol. 3 (2) 2004: pp. 123-134 |
format |
Article in Journal/Newspaper |
author |
M S Kyewalyanga A W Mwandya |
author_facet |
M S Kyewalyanga A W Mwandya |
author_sort |
M S Kyewalyanga |
title |
Influence of Environmental Variables on Planktonic and Phytobenthic Communities in Earthen Ponds at Makoba, Zanzibar |
title_short |
Influence of Environmental Variables on Planktonic and Phytobenthic Communities in Earthen Ponds at Makoba, Zanzibar |
title_full |
Influence of Environmental Variables on Planktonic and Phytobenthic Communities in Earthen Ponds at Makoba, Zanzibar |
title_fullStr |
Influence of Environmental Variables on Planktonic and Phytobenthic Communities in Earthen Ponds at Makoba, Zanzibar |
title_full_unstemmed |
Influence of Environmental Variables on Planktonic and Phytobenthic Communities in Earthen Ponds at Makoba, Zanzibar |
title_sort |
influence of environmental variables on planktonic and phytobenthic communities in earthen ponds at makoba, zanzibar |
publisher |
Western Indian Ocean Journal of Marine Science |
publishDate |
2007 |
url |
http://ajol.info/index.php/wiojms/article/view/28456 |
geographic |
Indian |
geographic_facet |
Indian |
genre |
Copepods Rotifer |
genre_facet |
Copepods Rotifer |
op_source |
Western Indian Ocean Journal of Marine Science; Vol 3, No 2 (2004); 123-134 |
op_relation |
http://ajol.info/index.php/wiojms/article/view/28456 |
_version_ |
1766243306150297600 |