Temporal changes in environmental characteristics and diversity of net phytoplankton in a freshwater lake 290 table 1. Plankton diversity, physicochemical parameters and. Lsa introduction the phytoplankton refers to microscopic aquatic forms, with little resistance to currents and living in free floating or suspended form in open waters. Recently, similar patterns have been described for some groups of microorganisms, but the largescale biogeographical distribution of freshwater phytoplankton diversity is still largely unknown. Impact of salinity and ph on phytoplankton community in a. Phytoplankton community and their impact on water quality. Pdf tropical freshwater biology, 21 2phytoplankton. This complexity has been expressed in the high diversity of natural phytoplankton assemblages. Algae belonging to cyanophyceae, chlorophyceae and bacillariophyceae were recorded. Npp species recorded from the surface water of lake krishnasayar between january and december 2003 % by number contribution of species to the total number of net phytoplankters recorded across.
In this study we tried to identify and asses the trend of phytoplankton species diversity at. They are affected negatively by the change in salinity. Hollingworth lake is diverse as it had 49 taxa with more diverse population in august. The diversity of each community is composed of taxonomically as well as morphologically different species. Phytoplankton and water samples from nasarawa reservoir nigeria were collected and analysed for ten. Exhaustive list of studies about the relationship between phytoplankton diversity and functioning in freshwater lentic ecosystems around the world. Guide to identification of fresh water microorganisms. Largescale biodiversity patterns in freshwater phytoplankton. During the study period in 30th isea, the lakes were found in frozen condition so the sample could not be collected for benthic diversity assessment from the deep regions of lake. Factors affecting the phytoplankton diversity and richness in a. The dominant species of phytoplankton in each different water quality. With the potential for such high productivity, it is not surprising that phytoplankton are the first link in nearly all marine food chains. Mean seasonal diversity of zooplankton of imo river in etche lga discussionthe typical pattern of seasonality known for many zooplankton species in nigerian freshwater bodies and elsewhere, whereby abundance peaks in the dry season and low densities or total absence.
The book, an introduction to phytoplanktons diversity and ecology is very useful as it covers wide aspects of phytoplankton study including the general idea about cyanobacteria and algal. Mar 10, 2020 background phytoplankton diversity can be difficult to ascertain from morphological analyses, because of the existence of cryptic species and pico and concealed phytoplankton. We examined the species diversity of freshwater phytoplankton sampled from 540 lakes and reservoirs distributed across the continental united states and found strong latitudinal, longitudinal, and altitudinal gradients in phytoplankton biodiversity, demonstrating that microorganisms can show substantial geographic variation in biodiversity. Pdf largescale biodiversity patterns in freshwater. Taxonomic description of phytoplankton diversity 1. Phytoplankton diversity loss along a gradient of future. Water quality and phytoplankton diversity in buyukcekmece watershed, turkey yasemin gulecal, mustafa temel department of freshwater biology, university of istanbul, istanbul, turkey. Sep 18, 2017 globally, freshwater ecosystems are warming at unprecedented rates and northern temperate lakes are simultaneously experiencing increased runoff of humic substances brownification, with little known consequences for future conservation of biodiversity and ecosystem functioning. Plankton diversity and aquatic ecology of a freshwater lake l3 at. Study of phytoplankton diversity and physicochemical. The pigment diversity index and the nature of succession periodicity in freshwater phytoplankton are discussed.
In their study, the transition to brackish water conditions resulted in reduced phytoplankton diversity, especially during the first few days of incubation. Freshwater phytoplankton is the phytoplankton occurring in freshwater ecosystems. Study of physicochemical parameters and phytoplankton. The total number of phytoplankton listed in each of the four stations, varied considerably. The species are listed according to their abundance in the lake as follows. Sep 01, 2012 phytoplankton biomass, abundance, diversity alpha, beta, gamma and diversity metrics as richness species per sample, shannon diversity h. Water column stratification, phytoplankton diversity and. The phytoplankton consisted of 48 taxa belonging to bacillariophyceae 35, dinophyceae 6, chlorophyceae 4, and cyanophyceae 3. Most of the zooplankton are being used to main integral bioindicators of aquatic system.
Apr 01, 2016 to identify the ecological processes represented by the species richness, evenness, and proportional diversity in freshwater phytoplankton, the processes that affected the number of species and the size of species populations, stochastic or deterministic, were identified with a neutral model. Phytoplankton composition and diversity in response to. Phytoplankton biodiversity in the two perennial lakes of. Phytoplankton diversity effect on ecosystem functioning. Cyanobacteria can decrease phytoplankton diversity and phytoplankton diversity has been positively linked. We employed an outdoor mesocosm experiment during spring and summer to investigate the combined effects of.
Phytoplankton community and their impact on water quality bioline. Phytoplankton abundance and species diversity in ranjit sagar. Phytoplankton diversity relates negatively with productivity. Microcystis blooms resulted negative allelopathic effect and affected the diversity of phytoplankton. Feb 01, 2020 plankton diversity was considered an important ecological parameter in freshwater and marine water ecosystems. Without phytoplankton, the diversity and abundance of. Therefore, planktonic biodiversity is affected by the physical environment, water hydrography, and biotic variables sarker et al. Phytoplankton samples were collected using phytoplankton net and preserved in 5% formaldehyde solution on the spot, then brought to the laboratory for further analysis. Rocha and ursula gaedke, comparing seasonal dynamics of functional and taxonomic diversity reveals the driving forces underlying phytoplankton community structure, freshwater biology, 60, 4, 758767, 2014. However, there has been little comparison of metabarcoding and morphological datasets derived from the same samples.
Pdf plankton diversity and aquatic ecology of a freshwater. Find, read and cite all the research you need on researchgate. Pdf phytoplankton diversity and abundance in water bodies as. Despite the extreme diversity of phylogeny, morphology and size, both the marine and the freshwater phytoplankton are characterised by a. Tp, and warm temperatures, can lead to problematic cyanobacteria blooms. Mean seasonal diversity of phytoplankton of imo river in etche lga figure 9. Factors played an important role to regulate the phytoplankton in indian freshwater lakes, focussed on the factors figure 1 and figure 2. Temporal changes in environmental characteristics and.
Reduced phytoplankton and zooplankton diversity associated. Phytoplankton diversity and abundance in water bodies as affected. Global pattern of phytoplankton diversity driven by. Oct 10, 2017 the diversity of phytoplankton communities in natural freshwater and brackish habitats has been shown to increase ecosystem stability and resource use efficiency ptacnik et al. Pdf seasonal dynamics in plankton abundance and diversity. Most studies analyzed sedimentation, environmental quality or forest biodiversity, however there are still less of water organism research and publication. Phytoplankton species composition, distribution, abundance. Environmental effects on phytoplankton diversity will have extensive consequences extending beyond changes in species composition. They differ in size as the environment around them changes. Phytoplankton diversity and its relationships to the physicochemical. Phytoplankton community structure, composition and species diversity in aquatic ecosystem are determined by several physicochemical. Diversity indices, inland water bodies, phytoplankton abundance, species composition. It can be distinguished between limnoplankton lake phytoplankton, heleoplankton phytoplankton in ponds, and potamoplankton river phytoplankton.
In freshwater systems, certain physiochemical conditions, including high tp, low tn. Furthermore, we discuss the role of water body size, productivity of habitats and temperature on phytoplankton species richness, and how. In the present study the phytoplankton diversity and the physicochemical properties of the lake water were studied for monsoon and postmonsoon season. Dinophytes, cyanophytes, baccilariophytes, chlorophytes, cryptophytes, euglenophytes and crysophytes. Globally, freshwater ecosystems are warming at unprecedented rates and northern temperate lakes are simultaneously experiencing increased runoff of humic substances brownification, with little known consequences for future conservation of biodiversity and ecosystem functioning.
Pdf diversity of plankton and macrobenthos of freshwater habitats. Other fresh water plankton animalia, monera, etc name picture characteristic taxonomy bluegreen algae cyanobacteria 1. Species composition, abundance and diversity of phytoplankton are monitored by environmental factors like physicochemical properties of water, meteorological. Dhamra estuarine region with the water physico chemical parameters. Tendencies for numbers of organisms to become equally. Status of plankton diversity and biological productivity of. Phytoplankton as bioindicators of water quality in. Introduction diversity, though variously and precisely defined in several different formulae, is a concept to which it is difficult to give concrete meaning.
Although temperature is considered a key driver of general marine biodiversity, its specific role in phytoplankton diversity has remained unclear. Pdf on jul 31, 2016, n anyinkeng and others published phytoplankton diversity and abundance in water bodies as affected by. We determined monthly phytoplankton species richness by using niche modeling and 540,000 global phytoplankton. Influence of water quality on the biodiversity of phytoplankton in. Indepth sequencing and metabarcoding can reveal microbial diversity, and identify novel diversity. Bowling published freshwater phytoplankton diversity and biology. Distribution of phytoplankton diversity and abundance in. Combining morphological and metabarcoding approaches reveals. In this paper, we summarise some major steps in phytoplankton ecology in the context of mechanisms underlying phytoplankton diversity. Phytoplankton diversity, primary and bacterial production, nutrients and metallic contaminants. The physicochemical parameters such as temperature, ph, dissolved oxygen, chlorinity, salinity, nitrates, nitrites, phosphates, were studied. Diversity of zooplanktons and phytoplankton of freshwater of mun dam of buldhana district m. Plankton taxonomic and size diversity of mediterranean. Diversity of zooplanktons and phytoplankton of freshwater of.
Phytoplankton distribution and productivity in a highly. Algal bloom had been a problem on the hollingworth lake in years past to the locales and the lakes biodiversity. Jul 04, 2020 our understanding on phytoplankton diversity has largely been progressing since the publication of hutchinson on the paradox of the plankton. Euglenoids diversity of phytoplankton was investigated in. This research aims to study the diversity of phytoplankton and water quality based on certain physical and chemical parameters in some fresh water resources of thailand. Phytoplankton functional diversity increases ecosystem. The shannonwiener diversity index calculated for the density of.
Diversity of phytoplankton and water quality in some. Here, we provide a framework for phytoplankton community assembly and an overview of measures on taxonomic and. For instance, earlier studies have shown that phytoplankton diversity is a unimodal function of productivity, both in freshwater lakes dodson et al. Aimed primarily at students of the plankton, it develops many concepts relevant to ecology in the widest sense, and as such will appeal to a wide readership. Introduction primary productivity, chlorophyll a and phytoplankton primary productivity in rivers is mainly done by phytoplankton, phytobenthos and macro algae found along the water column balogun and ajani, 2015. A recent metaanalysis including about 3000 freshwater and brackish phytoplankton samples shows that diversity is the best predictor for the resource use. Deterministic diversity changes in freshwater phytoplankton. Plankton diversity, physicochemical parameters and conservation value of temporary freshwater rock pools alhassan usman gabi1, 2, hazel monica matiasperalta1 1 department of technology and heritage, faculty of science, technology and human development, university tun hussein onn malaysia, 86400 parit raja, batupahat, johor malaysia. To date, observational studies on the relationship between phytoplankton diversity and functioning in freshwater lakes have completely ignored trhals table1, 2451.
The role of marine phytoplankton diversity in oceanic ecosystem functioning and stability remains, however, largely unknown. The present study was focused to evaluate the phytoplankton biodiversity in two freshwater perennial lakes of sulur and ukkadam of coimbatore district, tamil nadu, india. Despite their importance to ocean productivity, global patterns of marine phytoplankton diversity remain poorly characterized. There is thousands of species phytoplankton and many of which remain undescribed. Water quality and phytoplankton diversity in buyukcekmece.
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