ZOOPLANKTON COMMUNITY STRUCTURE AT MAJAKERTA ESTUARY AND ITS SURROUNDING WATERS, INDRAMAYU REGENCY, WEST JAVA PROVINCE

Majakerta estuary and its surrounding waters have a high potential fishery resource which is commonly utilized by the community around the area. Fluctuation of physical and chemical parameters of the waters and fishery activities around the estuary can influence the existence of zooplankton. This study was conducted from December 2014 to May 2015. Samples of the zooplankton were collected monthly at four stations (consisted of sea, river and estuary areas). Based on the study, zooplankton in the Majakerta estuary and its surrounding waters consisted of six classes; i.e. Protozoa (11 genera), Crustaceae (4 genera, 1 nauplius stadia), and Rotifera (4 genera). A higher abundance was found at the sea (29025 ind./m3), while a lower abundance was at the river and estuary (7147 ind./m3 dan 7582 ind./m3). Based on the zooplankton diversity index, it can be inferred that the value was relatively low. There were two habitat groups, namely Station Group 1 (Station 1 and 2; river and estuary) and Station Group 2 (Station 3 and 4; sea) with influencing parameters such as transparency, pH, and salinity. Keywords: estuary, Majakerta, zooplankton, community structure

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ZOOPLANKTON COMMUNITY STRUCTURE AT MAJAKERTA ESTUARY AND ITS SURROUNDING WATERS, INDRAMAYU REGENCY, WEST JAVA PROVINCE

Jurnal Ilmu dan Teknologi Kelautan Tropis ◽

10.29244/jitkt.v9i1.17919 ◽

2017 ◽

Vol 9 (1) ◽

pp. 91-103 ◽

Cited By ~ 1

Author(s):

Happy Widyarini ◽

Niken T.M. Pratiwi ◽

. Sulistiono

Keyword(s):

Community Structure ◽

Diversity Index ◽

Zooplankton Community ◽

Chemical Parameters ◽

Zooplankton Community Structure ◽

Fishery Resource ◽

Group 2 ◽

Station Group ◽

Physical And Chemical ◽

Group 1

Majakerta estuary and its surrounding waters have a high potential fishery resource which is commonly utilized by the community around the area. Fluctuation of physical and chemical parameters of the waters and fishery activities around the estuary can influence the existence of zooplankton. This study was conducted from December 2014 to May 2015. Samples of the zooplankton were collected monthly at four stations (consisted of sea, river and estuary areas). Based on the study, zooplankton in the Majakerta estuary and its surrounding waters consisted of six classes; i.e. Protozoa (11 genera), Crustaceae (4 genera, 1 nauplius stadia), and Rotifera (4 genera). A higher abundance was found at the sea (29025 ind./m3), while a lower abundance was at the river and estuary (7147 ind./m3 dan 7582 ind./m3). Based on the zooplankton diversity index, it can be inferred that the value was relatively low. There were two habitat groups, namely Station Group 1 (Station 1 and 2; river and estuary) and Station Group 2 (Station 3 and 4; sea) with influencing parameters such as transparency, pH, and salinity. Keywords: estuary, Majakerta, zooplankton, community structure

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The Influence of Water Physical Chemical Quality on the Zooplankton Community Structure in the Upstream Citarum River of West Java Province

Asian Journal of Fisheries and Aquatic Research ◽

10.9734/ajfar/2021/v13i130258 ◽

2021 ◽

pp. 37-47

Author(s):

Seldatia Syifani Alhafidzoh ◽

Zahidah Hasan ◽

. Sunarto ◽

Heti Herawati

Keyword(s):

Diversity Index ◽

Zooplankton Community ◽

Chemical Quality ◽

Chemical Parameters ◽

Dominance Index ◽

West Java ◽

Zooplankton Community Structure ◽

Physical Chemical ◽

Physical And Chemical Parameters ◽

Physical And Chemical

The Citarum River is the longest river in West Java Province which is used for various human activities to produce a load of waste input into water bodies which cause changes in the physical and chemical parameters of the waters that will affect the life of aquatic organisms that live in it, one of which is zooplankton. Zooplankton can be used as a water bioindicator because it has a high level of sensitivity to pollution, especially in freshwater. The purpose of this research is to determine the physical-chemical quality of the water in the Citarum River and its influence on the structure of the zooplankton community in this environment. The research was carried out from August 2020 until October 2020 with a purposive sampling method. Sampling was carried out at 5 stations with 6 repetitions every 1 week. The parameters observed were physical and chemical parameters of the waters, an abundance of zooplankton, diversity index, and dominance index. The results showed that the composition of zooplankton in the Upstream Citarum River was 15 genus consisting of 2 phyla. The abundance of zooplankton obtained ranged from 21 - 51 individuals/L. The Simpson diversity index (D) obtained a range between 0.59 - 0.73 for the high category. The dominance index obtained ranges from 0.27 to 0.41 for the low category. Dissolved oxygen and pH are the parameters that most influence the presence of most of the identified zooplankton orders.

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Perifiton Community Structure in Citarik River

Asian Journal of Fisheries and Aquatic Research ◽

10.9734/ajfar/2019/v5i430083 ◽

2020 ◽

pp. 1-8

Author(s):

Heti Herawati ◽

Nisa Hidayati Fitri ◽

Zahidah . ◽

Asep Sahidin ◽

Izza Mahdiana Apriliani ◽

...

Keyword(s):

Community Structure ◽

Research Method ◽

Diversity Index ◽

Survey Method ◽

Chemical Parameters ◽

Dominance Index ◽

Periphyton Community ◽

Physical And Chemical Parameters ◽

Index Value ◽

Physical And Chemical

The purpose of this research is to determine the condition of waters in the Citarik River with the periphyton community as a bio indicator. This research was conducted from March-April 2019. The research method used was a survey method at 4 station points, five times sampling with a span of 7 days. The smallest periphyton abundance is in station IV which is 22 ind/cm2 and the most is in station I which is 18278 ind/cm2. Comparison of species deficit values at each station is different, this is influenced by different physical and chemical parameters. The dominance index value in the waters of the Citarik River ranges from 0.1 to 0.8 and the diversity index value ranges from 0.2 to 0.9. The results showed the Citarik River was in a mildly polluted condition.

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Zooplankton Community Structure in Seagrass Ecosystem, Tongkaina Village, Bunaken Darat District, Manado City

JURNAL PERIKANAN DAN KELAUTAN TROPIS ◽

10.35800/jpkt.10.2.2019.24481 ◽

2019 ◽

Vol 10 (2) ◽

pp. 78

Author(s):

Brenda V.A. Lahiwu ◽

Rose O.S.E. Mantiri ◽

Ferdinand F. Tilaar ◽

Laurentius Th. X. Lalamentik ◽

Ruddy D. Moningkey ◽

...

Keyword(s):

Community Structure ◽

Distribution Pattern ◽

Aquatic Ecosystem ◽

Diversity Index ◽

Zooplankton Community ◽

Total Density ◽

Total Zooplankton ◽

Zooplankton Community Structure ◽

Seagrass Ecosystem ◽

Water Conditions

This study aims to determine the type and community structure of zooplankton in the Tongkaina seagrass aquatic ecosystem. Sampling was carried out at 3 location points using plankton nets. Plankton net was drawn along 50 meters from the sea towards the beach. There are 14 genera of zooplankton in the morning and 17 genera in the afternoon. The total density of zooplankton in the morning was 0.064 individual/l , and in the afternoon 0.114 individual/l. The highest density of zooplankton in the morning is Limacina and in the afternoon, Calanus. The zooplankton Diversity Index (H ') in the morning is 2.5907 and in the afternoon is 2.7321, indicating that the diversity level is less diverse. Morning uniformity (e) zooplankton index was 0.5614 and in the afternoon 0.5267, showed that the distribution pattern of zooplankton was moderate. The zooplankton dominance (C) index in the morning was 0.0783 and in the afternoon 0.0720. This shows that there is no dominant genus. Water conditions fall into the good category due to the temperature, salinity, and pH that are quite stable and are still within the limits of feasibility for zooplankton life. Keywords: Zooplankton, Community Structure, Seagrass, Tongkaina Waters.Keywords: Zooplankton, Community Structure, Seagrass, Tongkaina Waters ABSTRAKPenelitian ini bertujuan untuk mengetahui jenis dan struktur komunitas zooplankton yang ada di ekosistem perairan lamun Tongkaina. Pengambilan sampel dilakukan pada 3 titik lokasi dengan menggunakan jaring plankton.Plankton net ditarik sepanjang 50 meter dari laut ke arah pantai. Terdapat 14 genus zooplankton pada waktu pagi dan 17 genus pada waktu sore. Kepadatan total zooplankton pada waktu pagi hari 0.064 ind/l dan sore hari 0.114 ind/l. Kepadatan relatif zooplankton yang tertinggi pada pagi hari yaitu Limacina dan pada sore hari yaitu Calanus. Adapun Indeks Keanekaragaman (H’) zooplankton pada pagi hari sebesar 2.5907 dan sore hari sebesar 2.7321, menunjukkan bahwa tingkat keanekaragaman kurang beragam. Indeks Keseragaman (e) zooplankton pada pagi hari sebesar 0.5614 dan pada sore hari 0.5267, menunjukkan bahwa pola sebaran zooplankton sedang. Indeks Dominansi (C) zooplankton pada waktu pagi hari sebesar 0.0783 dan sore hari 0.0720. Hal ini menunjukkan bahwa tidak ada genus yang dominan. Kondisi perairan masuk dalam kategori baik dikarenakan suhu, salinitas dan pH cukup stabil dan masih berada dalam batas kelayakan bagi kehidupan zooplankton.Kata kunci: Zooplankton, Struktur Komunitas, Lamun, Perairan Tongkaina.

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Diversitas Komunitas Fitoplankton Di Danau Hias Gold Coast, Pantai Indah Kapuk-Jakarta

Tropical Fisheries Management Journal ◽

10.29244/jppt.v4i2.33891 ◽

2020 ◽

Vol 4 (2) ◽

pp. 59-65

Author(s):

Bambang Widigdo ◽

Niken TM Pratiwi ◽

Inna Puspa Ayu ◽

Amelia Fitriani

Keyword(s):

Community Structure ◽

Diversity Index ◽

Gold Coast ◽

Chemical Parameters ◽

Phytoplankton Communities ◽

Physical And Chemical Parameters ◽

Drainage Channels ◽

One Year ◽

Physical And Chemical

The Gold Coast ornamental lake at Pantai Indah Kapuk, Jakarta is artificial, shallow and not too wide. It receives runoff from residential drainage channels, that affects the trophic states of the waters and the phytoplankton that live in it. This study aims to analyze the diversity of phytoplankton communities temporally related to trophic states in these waters. Sampling was carried out monthly for one year on the physical and chemical parameters of the waters and phytoplankton. Furthermore, the analysis of community structure and diversity of, a, b, and g, as well as determining the level of trophic states using the Chlorophyceae index and Cyanophyceae index. During the observation, four classes of phytoplankton were obtained, Chlorophyceae, Bacillariophyceae, Cyanophyceae, and Euglenophyceae which in total consisted of 41 species (g), a1-12 totaling 20-28 species, and b which were relatively small. The value of diversity index (H ') is low, the evenness (E) is moderate, and the dominance (C) is low. The values of the two trophic states indices indicated that the waters were in a eutrophic condition during the observation. In general, it can be concluded that the conditions of the waters were always eutrophic for one year, the diversity of phytoplankton is relatively low and did not show significant changes in species between observations.

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Assessment of coastal water productivity of Fitu Village, Ternate Island based on its zooplankton community structure

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/890/1/012011 ◽

2021 ◽

Vol 890 (1) ◽

pp. 012011

Author(s):

Yuliana ◽

Mutmainnah

Keyword(s):

Community Structure ◽

Diversity Index ◽

Water Productivity ◽

Zooplankton Community ◽

Low Fertility ◽

Fertility Level ◽

Zooplankton Community Structure ◽

Living Things ◽

Value Range ◽

Index Value

Abstract Zooplankton has an important role in waters, especially in the food chain, this organism is the first consumer that plays a major role in bridging the transfer of energy from the main producers to living things at a higher trophic level. The aim of the study was to analyze the coastal waters condition of Fitu Village, Ternate Island based on zooplankton community structure, carried out at 4 stations, and 4 sampling periods. Zooplankton samples were taken by filtering method. The results showed that there were 10 zooplankton genera from 4 classes, namely Ciliates (3 genera), Crustacea (4 genera), Hydrozoa (1 genus), and Rotifera (2 genera). The abundance of zooplankton found ranged from 2271 to 11562 ind.l−1, the highest at station 1 period IV and the lowest at station 4 period I. The value range of zooplankton biological indices were diversity index (H’) = 1.12 - 1.87, evenness index (E) = 0.64 - 0.93, and the dominance index (D) = 0.17 - 0.42. The waters of Fitu are included in the category of waters that have a low fertility level with a diversity index value (H’) of 1.12 - 1.87.

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Zooplankton community structure in relation to microcystins in the eutrophic Lake Zumpango (State of Mexico)

Fundamental and Applied Limnology / Archiv für Hydrobiologie ◽

10.1127/fal/2020/1256 ◽

2020 ◽

Vol 193 (3) ◽

pp. 213-225 ◽

Cited By ~ 1

Author(s):

Michael A. Figueroa-Sánchez ◽

S. Nandini ◽

S.S.S. Sarma

Keyword(s):

Community Structure ◽

Seasonal Variation ◽

Mexico City ◽

Zooplankton Community ◽

Eutrophic Lake ◽

Zooplankton Abundance ◽

Zooplankton Community Structure ◽

Physical And Chemical Variables ◽

Physical And Chemical ◽

Brachionus Angularis

We studied the seasonal variation of rotifers, cladocerans and copepods in Lake Zumpango, Mexico City, from June 2010 to May 2011. Physical and chemical variables of the water were measured at three sites, while 50 L of water was filtered from these sites to study the zooplankton abundance, diversity and biomass. The water temperature ranged from 14 to 23 °C, and nitrate and phosphate concentrations from 0.2 to 1 and 4 to 14 mg L–1, respectively. Microcystis sp. Dolichospermum sp. and Planktothrix sp. were present throughout the year. Microcystin concentrations were between 0.06 to 11.7 μg L –1, but for six months the concentrations exceeded 1 μg L–1 (1.1 to 11.7 μg L –1), with the highest concentrations observed in August and October. We recorded 33 species of rotifers, including Brachionus angularis (1 to > 11000 ind. L–1) and Brachionus havanaensis (1 to 6683 ind. L –1), while the most abundant cladoceran was Moina micrura (about 10 ind. L–1). The species diversity ranged from 0.8 to 2.9 bits ind–1, but small (< 250 μm) zooplankton (rotifers and copepod nauplii) dominated the community.

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