scholarly journals Water Physicochemistry and Zooplankton Fauna of Aiba Reservoir Headwater Streams, Iwo, Nigeria

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Emmanuel O. Akindele ◽  
Godwin O. Olutona
Keyword(s):  
Habitat Structure ◽  
Suspended Solids ◽  
Hydrological Cycle ◽  
Zooplankton Community ◽  
Total Suspended Solids ◽  
Inland Waters ◽  
Zooplankton Species ◽  
Zooplankton Community Structure ◽  
Correlation And Regression Analysis ◽  
Freshwater System

The physicochemical water condition and zooplankton fauna of the two main inflows of Aiba Reservoir were assessed over an annual hydrological cycle (May 2013–March 2014). The concentrations of total solids (TS) and total suspended solids (TSS) in the two streams were unusually higher in the dry season for typical inland waters of Nigeria and showed a decrease from the upper reaches towards the lower reaches (reservoir’s inlet). Dissolved oxygen, NO3-, and PO43- recorded their highest concentrations at the reservoir’s inlet. A total of 37 species of zooplankton were recorded in the study, comprising 5 species of Protozoa, 14 species of Rotifera, 10 species of Copepoda, 4 species of Ostracoda, and 4 species of Insecta. Aiba stream recorded higher number of zooplankton species and abundance than Onikan stream. While number of zooplankton species and abundance showed an increase from the upper reaches to the lower reaches of both streams, species diversity and equitability generally showed a decrease. Correlation and regression analysis suggests that the concentration of TS and TSS played a major role in determining the zooplankton community structure of the streams. PO43- concentrations as well as the community structures of zooplankton faunas of the two streams were indicative of a polluted freshwater system with unstable habitat structure.

scholarly journals KARAKTERISTIK FISIKA KIMIA PERAIRAN DAN STRUKTUR KOMUNITAS ZOOPLANKTON DI ESTUARI SUNGAI BANYUASIN, SUMATERA SELATAN

2017 ◽  
Vol 3 (3) ◽  
pp. 149 ◽  
Author(s):  
Eko Prianto ◽  
Husnah Husnah ◽  
Solekha Aprianti
Keyword(s):  
Water Quality ◽  
Species Diversity ◽  
Water Samples ◽  
Government Regulation ◽  
Suspended Solids ◽  
Zooplankton Community ◽  
Total Suspended Solids ◽  
Zooplankton Abundance ◽  
Zooplankton Community Structure ◽  
Water Sampler

Penelitian ini bertujuan untuk mengetahui kondisi kualitas perairan pasca pembangunan Pelabuhan Tanjung Api-Api dengan mempelajari karakteristik fisika kimia perairan dan struktur komunitas zooplankton. Penelitian tentang kelimpahan dan keanekaragaman jenis zooplankton dilakukan melalui enam titik stasiun pengamatan di muara Sungai Banyuasin pada bulan April sampai Nopember 2009. Contoh air diambil pada kedalaman 1 m dari permukaan air dengan menggunakan kemmerer water sampler dan contoh zooplankton diambil dengan menggunakan ember 50 L pada permukaan perairan. Selanjutnya contoh air disaring dengan menggunakan planktonnet dengan ukuran 25 μm. Hasil analisis kualitas air diperoleh nilai parameter (suhu, pH, NO2, COD, BOD, dan DO) berada dalam ambang batas yang diperbolehkan sesuai dengan Peraturan Pemerintah No.82 Tahun 2001. Nilai parameter padatan tersuspensi (total suspended solids), total dissolvedsolid, amoniak, nitrat, dan fosfat telah melebihi ambang batas lingkungan perairan yang diperbolehkan. Nilai indeks mutu lingkungan perairan menunjukan dalam kondisi tercemar berat. Kelimpahan zooplankton pada tahun 2009 yaitu 2-19 ind/L lebih rendah dari kelimpahan pada tahun 2004 yaitu 5- 34 ind/L sedangkan keanekaragaman jenis pada tahun 2009 mengalami penurunan jika dibandingkan tahun 2004. The aims of this study were to determine water quality conditions after construction of the port of Tanjung Api-Api by studying the physico chemical characteristics of water and zooplankton community structure. Research on zooplankton abundance and species diversity through the six points of observation stations in the estuary of the river Banyuasin in April until November 2009. Water samples taken at a depth of 1 m from water surface water by using a kemmerer water sampler and zooplankton samples were taken by using a bucket about 50 L in the surface. Further water samples were filtered using a plankton net with a size 25 μm. The results of water quality analize obtained that parameter values (temperature, pH, NO2, COD, BOD, and DO) were still in the threshold limit, in accordance with Government Regulation No.82 2001. Value parameters of total suspended solids, total dissolved solid, ammonia, nitrate, and phosphate has exceeded the permissible limit aquatic environment. Value of water environmental quality index showed in heavily polluted conditions. Zooplankton abundance in was 2-19 ind/L lower than the abundance in 2004 of 5-34 ind/L, while species diversity in the year 2009 decreased compared to 2004.

scholarly journals Chlorophyll-a and total suspended solids retrieval and mapping using Sentinel-2A and machine learning for inland waters

2020 ◽  
Vol 113 ◽  
pp. 106236 ◽  
Author(s):  
Mohammadmehdi Saberioon ◽  
Jakub Brom ◽  
Václav Nedbal ◽  
Pavel Souc̆ek ◽  
Petr Císar̆
Keyword(s):  
Machine Learning ◽  
Chlorophyll A ◽  
Suspended Solids ◽  
Total Suspended Solids ◽  
Inland Waters ◽  
Sentinel 2A

scholarly journals Cyanobacteria bloom: selective filter for zooplankton?

2015 ◽  
Vol 75 (1) ◽  
pp. 165-174 ◽  
Author(s):  
NAST Mello ◽  
PM Maia-Barbosa
Keyword(s):  
Species Composition ◽  
Hydrological Cycle ◽  
Diversity Index ◽  
Zooplankton Community ◽  
Distribution Patterns ◽  
Distinct Species ◽  
Zooplankton Community Structure ◽  
Β Diversity ◽  
Cyanobacteria Blooms ◽  
The Stability

The Ibirité reservoir is an urban and eutrophic environment, with regular occurrences of cyanobacteria blooms. The reservoir is warm monomict and remains stratified most of the year, circulating in the dry season (winter). During the hydrological cycle of October/07 to October/08 there were four scenarios with different environmental conditions, which influenced the structure of the zooplankton community, as confirmed in a previous study. Changes in the zooplankton community structure between the scenarios were studied, aiming at analyzing the stability and persistence of this community. The Spearman’s coefficient of correlation was used to measure the stability; the persistence was evaluated through a cluster analysis and changes in community composition were estimated by the "temporal" β diversity index. Considering the distribution patterns of abundance, the community was stable only in the transition between scenarios 1 and 2 (n = 30, r = 0.71, p = 0.00001), when there were no cyanobacteria blooms. The persistence of zooplankton between the scenarios was low, showing a distinct species composition for each scenario. The highest variations in species composition, observed by the values of temporal β diversity index, were the transitions between scenarios 3-0 (1.45) and 0-1 (1.05), and the lowest variations occurred in the transition between scenarios 1-2 (0.57). The results suggest that the cyanobacteria blooms at Ibirité reservoir are be acting as "selective filters", and are, thus, disturbances with sufficient ability to change the structure of the zooplankton community. Keywords Urban Reservoir, zooplankton, bloom of cyanobacteria, stability, persistence.

Species composition of limnetic zooplankton from the southern coastal areas (Mathbaria and Bakerganj) in Bangladesh

2013 ◽  
Vol 38 (1) ◽  
pp. 111-117
Author(s):  
Pronob K Mozumder ◽  
Samsun Nahar ◽  
M Niamul Naser ◽  
Munirul Alam ◽  
Anwar Huq ◽  
...  
Keyword(s):  
Community Structure ◽  
Species Composition ◽  
Zooplankton Community ◽  
Coastal Areas ◽  
Zooplankton Species ◽  
Zooplankton Community Structure

We studied the coastal zooplankton community structure of six waterbodies of Mathbaria and Bakerganj from January 2008 to June 2009. In total 35 zooplankton species were identified under 26 genera under 20 families under 8 orders from Mathbaria. Among them 6 were protozoans, 24 were rotifers, 3 were copepods, 1 was cladocerans and 1 was ostracods. From Bakergonj a total of 42 zooplankton species were identified under 23 genera under 17 Families under 7 orders. Among them 3 were protozoans, 25 were rotifers, 7 were copepods, 6 were cladocerans and 1 was ostracods. Results showed that abundance of rotifera group from both area was higher in Mathbaria (64.86%) and Bakerganj (60.98%) than other groups while abundance of ostracoda of Bakerganj area was lowest. DOI: http://dx.doi.org/10.3329/jasbs.v38i1.15326 J. Asiat. Soc. Bangladesh, Sci. 38(1): 111-117, June 2012

scholarly journals Zooplankton community structure of the lower Xingu River (PA) related to the hydrological cycle

2015 ◽  
Vol 75 (3 suppl 1) ◽  
pp. 47-54 ◽  
Author(s):  
T. Matsumura-Tundisi ◽  
JG. Tundisi ◽  
F. Souza-Soares ◽  
JEM. Tundisi
Keyword(s):  
Species Richness ◽  
Water Level ◽  
Reproductive Strategies ◽  
Hydrological Cycle ◽  
Zooplankton Community ◽  
Aquatic Biodiversity ◽  
Zooplankton Community Structure ◽  
Fundamental Factor ◽  
Xingu River ◽  
Zooplankton Communities

Abstract The zooplankton community of the lower Xingu River shows strong fluctuations in species richness and number of organisms during periods of water level fluctuation. Pulses of density and species richness are adapted to the pulses in water flows and water level. This is conected with reproductive strategies of some zooplankton groups. The spatial heterogeneity of the lower Xingu River consisting of braided channels, bedrocks, macrophyte stands, is probably a relevant factor for the species richness of the zooplankton communities, and may be a fundamental factor for the overall aquatic biodiversity of the lower Xingu River.

scholarly journals Zooplankton Community Structure in Shallow Saline Steppe Inland Waters

Water ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1164
Author(s):  
Katalin Zsuga ◽  
Zarina Inelova ◽  
Emil Boros
Keyword(s):  
Community Structure ◽  
Large Scale ◽  
Zooplankton Community ◽  
Extreme Environment ◽  
Baseline Survey ◽  
Inland Waters ◽  
High Concentration ◽  
Regional Study ◽  
Zooplankton Community Structure ◽  
Saline Waters

Several shallow saline waters can be found in Central Asia in arid steppe climate, but our knowledge of their zooplankton community has been so far rather limited. The aim of our research was to provide data on the steppe zooplankton community in a large-scale regional study. Therefore, a baseline survey was carried out in 23 shallow inland waters of different salinity in Northern Kazakhstan. We measured the quantity and identified the taxonomic composition of zooplankton in the spring period and examined changes in community structure in correlation with salinity. Lesser salt concentration of the hyposaline–mesosaline waters was indicated by the presence of halophilic rotifer species: Brachionus asplanchnoides, Br. dimidiatus, Br. plicatilis. Mesosaline and hypersaline waters were indicated by the presence of halobiont crustaceans: Moina salina, Arctodiaptomus salinus, Cletocamptus retrogressus. Very high concentration of salt was indicated by presence of Artemia alone which is the only group, that can tolerate and adapt to this extreme environment. In the hypersaline waterbodies at over 79 gL−1 high TDS conditions a very simple tropical structure was found. Artemia playing monopolistic ecological function in the zooplankton community. We identified three characteristic groups of shallow inland saline waters based on their zooplankton composition.

scholarly journals Temporary fragmentation of a marginal lake and its effects on zooplankton community structure and organization

2009 ◽  
Vol 69 (3) ◽  
pp. 819-835 ◽  
Author(s):  
R. Nadai ◽  
R. Henry
Keyword(s):  
Species Richness ◽  
Community Structure ◽  
Zooplankton Community ◽  
Zooplankton Abundance ◽  
Abiotic Factor ◽  
Zooplankton Species ◽  
Drought Period ◽  
Zooplankton Community Structure ◽  
Species Richness And Diversity ◽  
Disturbance Factor

A river lateral lake (Coqueiral Lake marginal to Paranapanema River in its mouth zone into Jurumirim Reservoir, São Paulo, Brazil) presented fragmentation into four small isolated bodies of water during a prolonged drought period, disrupting the link with the river. The aim of this work was to compare the temporal modifications on zooplankton community structure (total abundance, species richness, and diversity) in the four water bodies. Zooplankton samplings and abiotic factor measurements were made in two periods - during isolation phase of the lake in relation to river and after re-establishment of hydrologic connectivity. A concentration effect on zooplankton abundance was recorded with drought progression, but without significant modifications in species richness and diversity. When the river inundation pulse occurred, a reduction in total zooplankton density was observed due to the dilution effect and a significant increase in species richness and diversity was recorded. Lateral water influx from the river to the lacustrine environment acts as a temporary disturbance factor on the zooplankton community structure. Zooplankton species composition presented some modifications between the two periods. Zooplankton organism drift in water from the river to the lake, removal of individuals from the aquatic macrophytes, and eclosion of resting eggs from sediment are probable factors that can increase zooplankton species richness immediately after lateral pulse inundation with water by the river.

INVESTIGATION OF DIFFERENT ENVIRONMENTAL FACTORS ROLE IN THE FORMATION OF ZOOPLANKTON COMMUNITY IN THE ARPA RIVER (ARMENIA) AND ITS MAIN TRIBUTARIES

2016 ◽  
Vol 50 (3 (241)) ◽  
pp. 53-59
Author(s):  
A.H. Hayrapetyan ◽  
S.E. Bolotov ◽  
G.A. Gevorgyan ◽  
B.K. Gabrielyan
Keyword(s):  
Organic Matter ◽  
Environmental Factors ◽  
Suspended Solids ◽  
Zooplankton Community ◽  
Total Suspended Solids ◽  
Species Structure ◽  
Catchment Basin ◽  
River Catchment ◽  
The Status

The role of different environmental factors in the formation of zooplankton community in the river ecosystems of the Arpa River catchment basin was investigated. The results of the study showed that zooplankton diversity in the mentioned ecosystems was significantly affected by the river velocity, which caused not only deterioration but also improvement in the status of zooplankton diversity. It was also revealed that the main environmental factors determining the species structure of zooplankton community in the Arpa, Yeghegis and Darb rivers were oxygen saturation, total phosphorus, total suspended solids and organic matter (of terrigenous origin probably).

scholarly journals Stable isotope compositions of dominant zooplankton species in relation to environmental factors in the Dardanelles

2019 ◽  
Vol 71 (1) ◽  
pp. 177-185 ◽  
Author(s):  
Sinan Uzundumlu ◽  
Yeşim Büyükateş
Keyword(s):  
Suspended Solids ◽  
Total Suspended Solids ◽  
Species Level ◽  
Zooplankton Abundance ◽  
Zooplankton Species ◽  
Total Zooplankton ◽  
Biological Factors ◽  
Filter Feeder ◽  
Coastal System ◽  
Isotopic Analyses

Samples were collected seasonally from three stations in the Dardanelles between April 2016 and October 2017 to determine the effects of biological and physicochemical properties of the coastal system on the isotopic compositions of the most abundant copepod species, Acartia clausi and Calanus helgolandicus, and a cladoceran, Penilia avirostris. Plankton samples were collected horizontally with a 200-?m-mesh plankton net and isotopic analyses were performed by mass spectrometry after identification to species level. Total zooplankton abundance reached its maximum in spring and summer. The ?13C values of copepods showed statistically significant differences both between stations and seasons. As a selective feeder, C. helgolandicus had the highest values in both ?13C and ?15N. Being a filter feeder, P. avirostris distinctly differed from C. helgolandicus and A. clausi. Enrichment was observed in ?15N values of copepods in winter, when the highest values of total suspended solids and chlorophyll-a were determined. The results showed that ?13C values of the copepods were under the influence of environmental and biological factors. Additionally, dietary differences between herbivorous groups and other groups were clearly demonstrated, as well as differences in the diets of filter-feeding and selectively-feeding zooplanktonic species.

Meteorite crater ponds as source of high zooplankton biodiversity

Biologia ◽  
2016 ◽  
Vol 71 (12) ◽  
Author(s):  
Kasper Świdnicki ◽  
Anna Maria Basińska ◽  
Małgorzata Pronin ◽  
Natalia Kuczyńska-Kippen
Keyword(s):  
Catchment Area ◽  
Zooplankton Community ◽  
High Specificity ◽  
Common Species ◽  
Taxonomic Structure ◽  
Zooplankton Species ◽  
Zooplankton Community Structure ◽  
Invertebrate Species ◽  
Meteorite Crater ◽  
High Diversity

AbstractMeteor crater ponds are extremely rare types of water body and consequently their environment, along with inhabiting fauna, are poorly recognised. We investigated the zooplankton community structure of three meteorite ponds. Their hydroperiod is usually the longest during the spring season, therefore the study-time covered the months between April and June. Within the craters we found 140 zooplankton species, which contributed to 20% of rotifer, 19% of cladoceran, 15% of copepod and 3% of ostracod Polish species. Our results showed a high diversity of zooplankton inhabiting these temporary ecosystems, even though we examined craters before the optimum of macrophyte development, which supports increase of invertebrate species richness. Only 43% of the species were common for all three ponds, although the meteorite craters were located very close to each other, possess the same catchment area and all were fishless. The high specificity of each pond was underlined by a high number of distinctive species (containing almost 30% of the total taxonomic structure). Zooplankton mainly consisted of eurytopic and common species, with representatives of families Brachionidae, Daphnidae and Cyclopidae having the highest frequency. However, over 10% of all species (e.g.,

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