Fitness of Plankton Species on the Physico-Chemical Conditions of Umalag River, Tablon, Cagayan de Oro City, Philippines: A Species Distribution Modeling Approach

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Research Paper 09/09/2022
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Fitness of Plankton Species on the Physico-Chemical Conditions of Umalag River, Tablon, Cagayan de Oro City, Philippines: A Species Distribution Modeling Approach

RJ Krista Raye Y. Leocadio
Int. J. Biosci.21( 3), 95-106, September 2022.
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Plankton species are found in different environmental conditions due to various requirements for their survival and reproduction.  These species have adapted to the rapid changes in their environment that resulted from natural selection.  Anthropogenic activities have driven and defined the distribution of species and their interaction with the environment. To understand the species diversity and occurrence of planktons in the Umalag River, Tablon, Cagayan de Oro City, a species distribution model (SDM) approach was used to link the ecological and biogeographical relationship between plankton species distributions and the physico-chemical environmental factors.  Five (5) common plankton species were found in the water samples such as Phormidium sp., Merismopedia sp., Lepocinclis sp., Nostoc sp., and Chlorella sp.  These species are common in freshwater bodies as indicators for enriched organic matters caused by industrial, agricultural, and domestic processes.  The planktons have displayed temporal changes in terms of their form, function, and selective advantage due to some traits like short-life histories, rapid changes in composition, response to shifting environmental conditions, and their survival abilities.  Results revealed that the community of plankton species in both disturbed and less disturbed areas are very much similar (SJ=0.625) with no strong correlation between the occurrence of plankton species and the environmental parameters being analyzed. Rivers are well-mixed environments with limiting nutrients that are equally available to the plankton species.  Due to the resistant nature of these plankton species, monitoring and sampling of the freshwater bodies must be done regularly to avoid the occurrence of algal blooms.


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