Evaluation of Spatial-Temporal Variations of Water Quality and Plankton Assemblages and Its Relationship to Water Use in Kulekhani Multipurpose Reservoir, Nepal

Adhikari, Puspa L.; Shrestha, Sagar; Bam, Wokil; Xie, Lin; Perschbacher, Peter W.

doi:10.4236/jep.2017.811079

Cited by 8 publications

(8 citation statements)

References 42 publications

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“…The abundance of phytoplankton in intensive ponds and traditional ponds based on the samples calculation is presented in Table 2. The abundance of phytoplankton in a shrimp pond is influenced by the physical and chemical properties of water quality which is affected by nutrient content discharged from aquatic waste around the farming site (Adhikari et al 2017;Emabye and Alemayo 2020) nitrogen and phosphorus (Arofah et al 2021). This result corresponds to the study by Samocha and Lawrence (1997), stating that the water quality index is strongly influenced by effluent from the pond itself, especially ponds that are close to the disposal area.…”

Section: Phytoplankton Abundancesupporting

confidence: 73%

Diversity of phytoplankton in the whiteleg (Litopenaeus vannamei) shrimp ponds in the south coastal area of Pangandaran, Indonesia

Palupi

Fitriadi²,

WIJAYA³

et al. 2021

Biodiversitas

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Abstract. Palupi M, Fitriadi R, Wijaya R, Raharjo P, Nurwahyuni R. 2021. Diversity of phytoplankton in the whiteleg (Litopenaeus vannamei) shrimp ponds in the south coastal area of ??Pangandaran, Indonesia. Biodiversitas 23: 118-124. Intensive shrimp farming in ponds is characterized by high stocking densities, complete feeding in quality and quantity, and good environmental control to produce the maximum quantity of shrimp in a fixed area. Phytoplankton is a bioindicator affecting the productivity of whiteleg shrimp in ponds. Currently, intensive shrimp farming activity is carried out on the south coast of Java, which utilizes sandy soil with a biofloc system, but the production has not been optimal. The objective of this study was to analyze the diversity and abundance of phytoplankton and water quality in the traditional and intensive whiteleg shrimp ponds in Pangandaran, West Java, to support sustainable pond management. The objective of the study was achieved by calculating the abundance, diversity index, evenness index and dominance index of planktons in intensive and traditional ponds. The study results showed that Chrysophyta division had the highest abundance and species number in both intensive and traditional ponds. The most abundant phytoplankton found in the intensive ponds was Halosphaera viridis (3143.88 ind/m3), and that in the traditional ponds was Rhizosolenia stolterfothi (1414.746 ind/m3). The phytoplankton diversity index (H') in the intensive ponds was 1.95 and that in the traditional ponds was 2.17. The dominance index value in the intensive ponds was 0.18 and in the traditional ponds 0.15. The abundance of phytoplankton is a limitation of the production success of whiteleg shrimp farming.

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Section: Phytoplankton Abundancesupporting

confidence: 73%

Diversity of phytoplankton in the whiteleg (Litopenaeus vannamei) shrimp ponds in the south coastal area of Pangandaran, Indonesia

Palupi

Fitriadi²,

WIJAYA³

et al. 2021

Biodiversitas

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“…The abundance of phytoplankton formed in pond waters is not only influenced by chemical and physical factors of the observed water quality, nutrients (3) but the impact generated from aquatic waste around the cultivation site also affects the state of the nutrient content contained in these waters (2,14). According to Samocha & Lawrence (49), Pond effluent greatly affects the water quality index, especially in ponds located near disposal areas .…”

Section: Figure 7 Phytoplankton Dominance Index In Every Locationmentioning

confidence: 99%

PHYTOPLANKTON COMMUNITY IN VANNAMEI SHRIMP (Litopenaeus vannamei) CULTIVATION IN INTENSIVE PONDS

Palupi¹,

Fitriadi²,

Kasprijo³

et al. 2023

Iraqi J. Agric. Sci.

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Optimal growth of shrimp and harvest in a pond is strongly influenced by water quality because this is a common thing but it cannot be denied that it is also an important thing. The combination of physicochemical parameters and biological indicators has become a classic way of studying water quality. Phytoplankton is a bioindicator that affects the productivity of vannamei shrimp in ponds. Currently, shrimp farming activities are intensive. This study aimed to analyze the diversity and abundance of phytoplankton and water quality in vannamei shrimp ponds. The research objective was achieved by calculating the abundance, diversity index, evenness index, and plankton dominance index in ponds. The results of the study were that the phytoplankton of Chlorophyta with the highest total abundance in each pond was 18,400x103 ind/l, 14,900x103 ind/l, 16,620x103 ind/l, and 6.410x103 ind/l. The index of phytoplankton diversity at each location was 0.74, 0.73, 0.87, 0.74. Phytoplankton uniformity index at each location was 0.04, 0.04, 0.05, 0.05. Phytoplankton dominance index at each location was 0.60, 0.38, 0.56, 0.07. The abundance of phytoplankton is an obstacle to the success of vannamei shrimp aquaculture production.

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“…Two Streams namely, Seti Stream and Chitlang Stream have been considered as upstream sampling sites whereas reservoir spillway sites are considered downstream sampling sites as shown in Figure 1. The Kulekhani watershed is comprised of 43.6% forest, 34% sloping agricultural land, 9.2% shrub, 5.7% level and valley terraces, and 7.5% other land use (Adhikari et al, 2017). According to CBS (2003), the Kulekhani watershed has a total population of 31,562, with more than 80% of them depending on agriculture for their livelihood.…”

Section: Study Areamentioning

confidence: 99%

“…The climate of the Kulekhani watershed varies from subtropical at low land to temperate at higher elevations (Adhikari et al, 2017). The average temperature of the study area is 15˚C to 25˚C in summer whereas 10˚C to 15˚C in the winter season.…”

Section: Study Areamentioning

confidence: 99%

Evaluation of benthic macroinvertebrate communities in upstream and downstream of Kulekhani Multipurpose Reservoir, Makawanpur, Nepal

2022

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Reservoir construction in the natural waterways can disrupt the structure and function of riparian ecosystems with the alteration in abundance and composition of aquatic organisms. This study assessed the variation in Benthic Macroinvertebrates (BMIs) communities in upstream (Chitlang and Seti Streams) and downstream (spillway) of Kulekhani multipurpose reservoir, Makawanpur, Nepal. Multi-habitat qualitative samplings with Ganga River System Biotic Score (GRSBIOS) index was used for the biological water quality assessment. Out of total 25 families and 8 orders of identified BMIs, Diptera and Coleoptera order are abundant whereas Oligochaeta and Odonata order are lowest. Taxa richness and abundance of BMIs were estimated to be higher upstream. Number of EPT taxa (6 to 2) and percentage of EPT (35.07 to 28.04 %) abundance were recorded in decreasing order of response toward downstream. The upstream showed a high Shannon and Simpson’s diversity index. Chitlang Stream is found slightly polluted as Average Score Per Taxa (ASPT) score is calculated as 6.1 (River Water Quality Status (RWQS)-I)). Similarly, immediate downstream is critically polluted with RWQS-III whereas Seti Stream and spillway after 4 km were found to be moderately polluted as RWQS-II. Canonical Correspondence Analysis (CCA) showed that pH, temperature, and dissolved oxygen have a high influence in BMIs assemblages. The study depicts the ecological health of the stream immediately downstream of the reservoir is disturbed with presence of tolerant BMIs assemblages. The implication of the study can be in the assessment of impact caused by the reservoir in the ecological status of the water transfer.

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Evaluation of Spatial-Temporal Variations of Water Quality and Plankton Assemblages and Its Relationship to Water Use in Kulekhani Multipurpose Reservoir, Nepal

Cited by 8 publications

References 42 publications

Diversity of phytoplankton in the whiteleg (Litopenaeus vannamei) shrimp ponds in the south coastal area of Pangandaran, Indonesia

Diversity of phytoplankton in the whiteleg (Litopenaeus vannamei) shrimp ponds in the south coastal area of Pangandaran, Indonesia

PHYTOPLANKTON COMMUNITY IN VANNAMEI SHRIMP (Litopenaeus vannamei) CULTIVATION IN INTENSIVE PONDS

Evaluation of benthic macroinvertebrate communities in upstream and downstream of Kulekhani Multipurpose Reservoir, Makawanpur, Nepal

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