Water quality - Guidance on analysis of mesozooplankton from marine and brackish waters

2019 ◽  
Keyword(s):  
Water Quality ◽  
Brackish Waters ◽  
Marine And Brackish Waters

scholarly journals Struktur Komunitas Plankton Perairan Payau di Kecamatan Wedung Kabupaten Demak

2016 ◽  
Vol 18 (2) ◽  
pp. 89
Author(s):  
Isyarotuz Zakiyyah ◽  
Jafron Wasiq Hidayat ◽  
Fuad Muhammad
Keyword(s):  
Water Quality ◽  
Species Diversity ◽  
Quality Standards ◽  
Plankton Community ◽  
Natural Food ◽  
Brackish Waters ◽  
Copepod Nauplius ◽  
The Government ◽  
Plankton Communities ◽  
Analyze Data

Aquaculture are highly prioritized by the government to support the economy. Products from the aquaculture sector is also targeted as a source of income to the Indonesian country. Aquaculture needs to improve to manage water quality, especially plankton to support natural food of the fish. This study aims to examines structure of plankton community in the brackish waters of the District Wedung and then examines the water quality with environmental quality standards of water the cultivation. Research was conducted in February-April 2015. The method used to analyze data that plankton with uses keanekargaman index (H ') and the perataan index ( e ). The results showed that the number of species (genera) plankton obtained during research in the waters of the District Wedung was 45 species, these types consist of 37 species of phytoplankton and zooplankton 8 types. The most common plankton species found in all the stations were Fragillaria sp, Synedra ulna, Oscillatoria formosa and Copepod nauplius. Index of species diversity that existed at the District Wedung moderate to high waters with a range from 1.69 to 2.91 therefore a complex community and stability of the ecosystem were moderate to high. The evennes index ranged from 0.63 to 0.85. Water quality based on the pH, salinity, Turbidity, N, P and organic materials are less good for the cultivation so that the necessary processing on the pond so that according to the criteria of the quality standards of water quality. Keywords: structure of plankton communities, brackish waters, District Wedung

scholarly journals Komunitas makrozoobentos dan kaitannya dengan kualitas air aliran sungai Senggarang, Kota Tanjungpinang

2021 ◽  
Vol 8 (2) ◽  
pp. 103
Author(s):  
Aknes Safitri ◽  
Winny Retna Melani ◽  
Wahyu Muzammil
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
River Flow ◽  
Environmental Parameters ◽  
Small Island ◽  
Brackish Waters ◽  
Relationship Of ◽  
The Relationship ◽  
Macrozoobenthic Community

Senggarang is one of the coastal villages in Tanjungpinang City which has a river that flows from the upstream downstream into the sea. The flow of the Senggarang river has distinctive characteristics that are commonly found in small island waters, namely having a relatively short upstream to downstream distance, and the downstream part is influenced by tidal conditions. Various activities along the Senggarang river flow would cause changes in water quality which would impact the presence of macrozoobenthic. The objective of this study was to determine the relationship between the macrozoobenthic community and the water quality of the Senggarang river. Macrozoobenthic sampling, and environmental parameters were carried out using random sampling methods. The results of this study were obtained 27 species from 6 phylum, namely phylum Arthropoda 13 species, phylum Ciliophora 3 species, phylum Echinodermata 1 species, phylum Mollusca 4 species, phylum Nematoda 5 species, and phylum Tardigrada 1 species. The average macrozoobenthic density is 172 ind./ m3 for freshwater and 704 ind./ m3 for brackish waters. The average diversity value for freshwater is 1.29 and 2.16 waters with medium salinity, the average uniformity value of 0.85 freshwater and 0.94 of high in brackish waters, the average dominance value of 0.32 freshwater and 0.13 of low in brackish waters. The relationship of macrozoobenthos with the quality of freshwater based on PCA analyses related to temperature and dissolved oxygen, in brackish waters to temperature, dissolved oxygen, and current.Keywords: Macrozoobenthic community, PCA, River flow, Water quality

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