scholarly journals Struktur Komunitas Fitoplankton di Kolam Bekas Pertambangan Batubara Desa Kampung Baru Kecamatan Cempaka

BIOSCIENTIAE ◽  
2021 ◽  
Vol 17 (2) ◽  
pp. 37
Author(s):  
Sukoco Sukoco ◽  
Gunawan Gunawan ◽  
Muhamat Muhamat
Keyword(s):  
Community Structure ◽  
Coal Mining ◽  
Sampling Method ◽  
Diversity Index ◽  
Pool Analysis ◽  
Fertility Rate ◽  
The State ◽  
Purposive Sampling ◽  
Phytoplankton Communities ◽  
Average Abundance

This study aims to determine the structure of phytoplankton communities in the pool are former coal mining Desa Kampung Baru Kecamatan Cempaka which include abundance, diversity, uniformity and dominance. Phytoplankton samples taken in two pools with a purposive sampling method with a three-point shooting at each pond. Sampling was performed three times. Phylum of phytoplankton were identified in both pools as much as 2 phylum (Chloropyta and Chrysopita) with 17 genera. Average abundance of phytoplankton in the first pool of 7174 ind / liter and 6873 ind / liter in the second pool. The average diversity index of phytoplankton in the first pool of 1.540 and 1.621 in the second pool. Average uniformity index of phytoplankton in the first pool of 0622 and 0.623 in the second pool. The average index of phytoplankton dominance in the first pool of 0271 and 0250 in the second pool. Analysis of community structure (abundance, diversity, uniformity and dominance) shows the condition of the two ponds in the state is quite stable and capable of supporting life inside the phytoplankton. Where the pool in the fertility rate is the level of contamination is, the conditions included in the category of individuals spread more evenly and there are no species that dominate other species in the extreme.

scholarly journals Struktur Komunitas Zooplankton di Perairan Pulau Panjang dan Teluk Awur, Kabupaten Jepara

2018 ◽  
Vol 7 (1) ◽  
pp. 37
Author(s):  
Rodhiyah Patmawati ◽  
Hadi Endrawati ◽  
Adi Santoso
Keyword(s):  
Sampling Method ◽  
Diversity Index ◽  
Dominance Index ◽  
Purposive Sampling ◽  
Marine Tourism ◽  
High Category ◽  
A Value ◽  
Evenness Index ◽  
Average Abundance ◽  
High Level

Perairan Pulau Panjang dan Teluk Awur merupakan lokasi wisata dan dimanfaatkan masyarakat sebagai sumber mata pencaharian. Zooplankton berperan sebagai konsumen tingkat satu yang menghubungkan fitoplankton dengan organisme tingkat tinggi. Tujuan dari penelitian ini adalah  untuk mengetahui komposisi, kelimpahan, indeks keanekaragaman, indeks keseragaman, indeks dominansi zooplankton di perairan Pulau Panjang dan teluk Awur. Metode yang digunakan dalam penelitian ini adalah deskriptif eksploratif dan penentuan lokasi menggunakan metode purposif sampling. Penelitian ini terbagi atas 5 stasiun dengan 3 sub-stasiun di setiap stasiun. Pengambilan sampel zooplankton dengan cara aktif dengan menarik planktonet secara horizontal. Pengambilan sampel dilakukan pada bulan Januari 2017. Hasil penelitian diperoleh 31 genera zooplankton dari 8 fila di perairan Pulau Panjang dan 20 genera zooplankton dari 3 fila di perairan Teluk Awur. Kelimpahan rata-rata zooplankton berkisar antara 378 Ind/L – 892 Ind/L di perairan Pulau Panjang dan 341 Ind/L – 446 Ind/L di perairan Teluk Awur. Indeks Keanekaragaman zooplankton menunjukkan nilai  2,36 – 2,68 di perairan Pulau Panjang dan 2,29 – 2,62 di perairan Teluk Awur yang termasuk dalam kategori sedang. Indeks keseragaman zooplankton menunjukkan nilai 0,75 – 0,88 di perairan Pulau Panjang dan 0,89 – 0,94 di perairan Teluk Awur yang termasuk dalam kategori Tinggi. Indeks dominansi di kedua lokasi menunjukkan tidak ada genus tertentu yang mendominasi dengan nilai 0,12 – 0,25 di perairan Pulau panjang dan 0,07 – 0,11 di perairan Teluk Awur.  Panjang Island and Teluk Awur waters are a marine tourism places and both the waters are also utilized as a source of community livelihood. Zooplankton role is as the first-level consumer that connects phytoplankton with the high-level organisms. The purpose of this research was to know the compotition, abundance, diversity index, evennes index and dominance index of zooplankton in the waters of Panjang Island and Teluk Awur of Jepara Regency. This research used deskriptive eksplorative method and determination location used purposive sampling method. This study was divided into 5 stations and with 3 sub-stations at each station. Zooplankton sampling was horizontally active by pulling the plankton-net. Sampling was done in january 2017. The results found 31 zooplankton genera of 8 phyla in Panjang Island waters and 20 zooplankton genera of 3 phyla in Teluk Awur waters. The average abundance ranged from 378-892 ind/L in Panjang Island waters and 341-446 ind/L in Teluk Awur waters. The zooplankton Diversity Index indicated the values of 2.36 - 2.68 in Panjang Island waters and 2.29-2.62 in Teluk Awur waters  which were in the medium category. The zooplankton evenness index indicated a value of 0.75-0.88 in Panjang Island waters and 0.89-0.94 in Teluk Awur waters belonging to the High category. The dominance index at both sites indicated that no particular genus dominating with the values of 0.12 - 0.25 in Panjang Island waters and 0.07-0.11 in Teluk Awur waters.

scholarly journals Komposisi dan Struktur Komunitas Zooplankton di Danau Diatas, Sumatera Barat

2018 ◽  
Vol 4 (2) ◽  
pp. 10-15
Author(s):  
Sulis Setiawati ◽  
Izmiarti Izmiarti ◽  
Nofrita Nofrita
Keyword(s):  
Community Structure ◽  
Sampling Method ◽  
Diversity Index ◽  
Similarity Index ◽  
Population Diversity ◽  
Research Station ◽  
Zooplankton Species ◽  
Purposive Sampling ◽  
Composition And Structure

Penelitian tentang komposisi dan struktur komunitas zooplankton pada di Danau Diatas, Solok Sumatera Barat telah dilakukan pada bulan April sampai September 2016. Penelitian ini bertujuan untuk mengetahui komposisi dan struktur komunitas zooplankton di Danau Diatas kabupaten Solok, Sumatera Barat. Penelitian ini menggunakan metoda Purposive Sampling di empat stasiun. Sampel Zooplankton diambil menggunakan pompa air Alkon dan planktonnet.  Zooplankton yang didapatkan 44 spesies dengan komposisi Protozoa 5 spesies, Rotifera 22 spesies, Cladocera 13 spesies, dan Copepoda 4 spesies. Kepadatan total 20683,58 ind/l. indeks diversitas di Danau Diatas yaitu berkisar 1,043 -1,45. Indeks equitabilitas berkisar 0,31-0,54. Berdasarkan strata indeks equitabilitas berkisar 0,42-0,52, dan komunitas antar stasiun relatif seragam dengan indeks similaritas 53,06-61,53%. Study of composition and community structure zooplankton of Diatas Lake, Solok District, West Sumatera, from April until September 2016. The purpose of this research was to know the composition and structure of zooplankton. The research was conducted by using Purposive Sampling method with four research station. the samples by using water pomp machine and plankton net. The result showed that zooplankton it was found 44 zooplankton species with composition of Protozoa 5 species, 22 species of Rotifers, 13 species of Cladocera, and 4 species Copepods. The population diversity average 1723,6 ind/l.  diversity index (H’) ranged from 1,04 – 1,45, Equitability index (E) ranged from 0,31-0,54, Sorensen Similarity index ranged from 53,06 – 61,53 %.  

KOMPOSISI DAN STRUKTUR KOMUNITAS ZOOPLAKTON DI DANAU TALAGA, SULAWESI TENGAH

Biocelebes ◽  
2020 ◽  
Vol 14 (3) ◽  
pp. 210-216
Author(s):  
Melisa Melisa ◽  
Asri Pirade Paserang
Keyword(s):  
Community Structure ◽  
Sampling Method ◽  
Diversity Index ◽  
Zooplankton Abundance ◽  
Dominance Index ◽  
Dominant Type ◽  
Purposive Sampling ◽  
Composition And Structure ◽  
Central Sulawesi

Study of composition and community structure of zooplankton in Talaga Lake was conducted from February to March 2019. The aimed of this research was to know the composition and structure of zooplankton in Talaga lake, Central Sulawesi. Samples were collected at four station by using purposive sampling method. The identification results have found 4 genus of zooplankton with each composition 71 % of Cyclops, 22 % of Daphnia, 0,34 % of Paramecium and 6,64 % of Chaoborus. The zooplankton abundance is around 11.6-17.2 ind/l. Community structure of zooplankton in Talaga Lake is unstable which shows by the low value of diversity index (0.68 to 0.8) and uniformity index (0,49-0,57). The value of dominance index which is in range 0.51-0.58 has also shown that there is dominant type of zooplankton.

scholarly journals Makrozoobenthos Gastropoda pada Vegetasi Mangrove di Pesisir Utara, Semarang

2019 ◽  
Vol 8 (1) ◽  
pp. 37
Author(s):  
Haryo Farras Raditya Hutama ◽  
Retno Hartati ◽  
Ali Djunaedi
Keyword(s):  
Community Structure ◽  
Sampling Method ◽  
Diversity Index ◽  
Secondary Data ◽  
Mangrove Ecosystem ◽  
Sampling Location ◽  
Research Station ◽  
Purposive Sampling ◽  
Data Density ◽  
Index Value

Kerusakan hutan mangrove yang terjadi karena adanya aktivitas manusia cukup mengkhawatirkan dan berpengaruh terhadap kelangsungan hidup biota yang hidup didalamnya, salah satunya adalah Gastropoda. Penelitian ini dilakukan untuk mengetahui komposisi jenis makrozoobenthos gastropoda  dan menganalisa struktur komunitasnya. Pengambilan sampel dilaksanakan pada bulan Maret 2015 di 4 lokasi yakni Mangunharjo, Mangkang Wetan, Pantai Maron dan Trimulyo, Semarang. Penentuan lokasi sampling dengan metode purposive sampling method terbagi dari kelebatan mangrove lebat, sedang dan jarang pada setiap lokasi penelitian dengan pertimbangan pengaruh aliran sungai terhadap parameter disetiap stasiunnya.Klasifikasi kelebatan mangrove berdasarkan data sekunder kerapatan mangrove Pesisir Utara Semarang 2015. Pengambilan sampel gastropoda menggunakan metode kualitatif dengan transek 5m x 5m dan 1m x 1m dengan jumlah stasiun sebanyak 8 dan 3 kali pengulangan pada setiap stasiunnya. Hasil penelitian ditemukan 8 jenis spesies yang terdiri dari 4 famili yang berbeda.Famili Potamididae paling banyak ditemukan dengan jumlah 4 spesies. Ditemukan satu spesies Famili Neriitidae yakni Nerita sp. serta satu spesies Famili Ellobiidae yakni Cassidula sp.. Kelimpahan tertinggi terdapat pada Stasiun MR1 (25.667 ind./75m2) dan terendah distasiun MW3 (0.107 ind./75m2). Nilai Indeks Keanekaragaman masuk dalam kategori sedang, sedangkan nilai indeks keseragaman dalam kategori tinggi.Dalam penelitian ini menemukan spesies yang mendominasi pada 2 stasiun yaitu Stasiun MW1 dan MR1. The damage of the mangrove ecosystem which occur due to human activity is quite alarming and effect on the survival of biota that lived in it, one which is Gastropods. This research was conducted to find out the composition of macrozoobenthos gastropods and analyze its community structure. Sampling did on March 2015 at 4 locations, i.e., Mangunharjo, Mangkang Wetan, Maron and Trimulyo, Semarang. This study was conducted to determine and identify the community structure of gastropod macrozoobenthos in mangrove vegetation on the coast of Semarang The determination of sampling location use purposive sampling method that divide the dense mangrove luxuriance, moderate and rarely at location research. The dense mangrove classification based on secondary data from the landsat image of 8 and the data density of mangrove North Coastal Semarang 2015. Sampling use qualitative method with 5 m x 5 m transects and 12 stations with three-time repetitions for each stations. The results found gastropods 8 types of species comprising in 4 different families. Potamididae family is the most dominant where found 4 species. One species of Neriitidae family is found which Nerita sp. and one species of the Ellobidae family is also found, which Cassidula sp.. The highest abundance was found on Station MR1 (25.667 ind./75m2) and the lowest in station MW3 (0.107 ind./75m2). The value of the Diversity Index can be category as average while the Equitability Index value is high. In this study, found there is 2 dominance species on the whole research station, one at MW1 and the other at MR1.

scholarly journals COMPOSITION AND COMMUNITY STRUCTURE OF COPEPOD IN KAKAP RIVER ESTUARY, KUBU RAYA DISTRICT WEST BORNEO

2021 ◽  
Vol 3 (1) ◽  
pp. 54-66
Author(s):  
Elda Sari ◽  
Nora Idiawati ◽  
Sukal Minsas
Keyword(s):  
Community Structure ◽  
Correlation Analysis ◽  
Sampling Method ◽  
Diversity Index ◽  
River Estuary ◽  
Dominance Index ◽  
Purposive Sampling ◽  
Density Correlation ◽  
Evenness Index ◽  
Current Parameter

The research of composition and community structure of copepods in Kakap river estuary, Kubu Raya District, West Borneo was conducted from October to December 2020. The purpose of this study is to determine the composition and the community structure of copepod in Kakap river estuary, Kubu Raya District, West Borneo. This study used a purposive sampling method at four stations. Copepod samples were taken using plankton net. During the research, the total number of copepods that have been identified from 4 stations are 11 species from 3 orders, 4 families and 8 genera. Copepoda that has been obtained has the composition, namly Cyclopoids 5 species, Harpacticoida 3 species, Calanoida 2 species. The copepod density in Kakap river estuary ranged from 7,9-103,3 Ind / l, the diversity index (H ') ranged from 0 to 1.9, the evenness index (E) ranged from 0 - 0,9 and the dominance index (C) ranged from 0,2 - 1. The result of copepod density correlation analysis is that negatively correlated with -1,000 current parameter and positively correlated with the DO parameter, which is 0,800. The research of composition and community structure of copepods in Kakap river estuary, Kubu Raya District, West Borneo was conducted from October to December 2020. The purpose of this study is to determine the composition and the community structure of copepod in Kakap river estuary, Kubu Raya District, West Borneo. This study used a purposive sampling method at four stations. Copepod samples were taken using plankton net. During the research, the total number of copepods that have been identified from 4 stations are 11 species from 3 orders, 4 families and 8 genera. Copepoda that has been obtained has the composition, namly Cyclopoids 5 species, Harpacticoida 3 species, Calanoida 2 species. The copepod density in Kakap river estuary ranged from 7,9-103,3 Ind / l, the diversity index (H ') ranged from 0 to 1.9, the evenness index (E) ranged from 0 - 0,9 and the dominance index (C) ranged from 0,2 - 1. The result of copepod density correlation analysis is that negatively correlated with -1,000 current parameter and positively correlated with the DO parameter, which is 0,800.

scholarly journals Phytoplankton community structure in Menjer Lake, Central Java

2021 ◽  
Vol 869 (1) ◽  
pp. 012037
Author(s):  
F Sulawesty ◽  
G P Yoga ◽  
L Subehi ◽  
R Rosidah
Keyword(s):  
Community Structure ◽  
Phytoplankton Community ◽  
Diversity Index ◽  
Nutrient Content ◽  
Cell Counting ◽  
Phytoplankton Community Structure ◽  
Nitrogen And Phosphorus ◽  
Central Java ◽  
Phytoplankton Communities ◽  
Ecological Pressure

Abstract The occurrence of land changes around Lake Menjer, Central Java Province will affect the condition of water quality subsequently will affect biota, including phytoplankton. The purposes of study was to analyze the composition and abundance of phytoplankton in Menjer Lake regarding to nutrient content i.e. nitrogen and phosphorus. Observations on the phytoplankton community were conducted in July and October 2019 at six locations in Menjer Lake. Water samples were taken at the water surface as much as 10 L filtered using plankton net. Identification was carried out under the inverted microscope Diaphot 300. The abundance was calculated using the Sedgwick Rafter cell counting (SRCC) method. Analysis of the phytoplankton community structure was derived by calculating the Diversity Index, Evenness Index, and Simpson Dominance Index. The nutrient content in Menjer Lake influences the structure of phytoplankton communities quantitatively and qualitatively. Observation showed that the diversity of phytoplankton was low and there was one species dominanted, the result explained that the phytoplankton community in Menjer Lake is unstable and there is ecological pressure on the community. It can be concluded that the improvement of environmental conditions around Menjer Lake is the basis for the sustainable management of Menjer Lake.

scholarly journals ANALISIS KUALITAS PERAIRAN BERDASARKAN KOMPOSISI DAN KELIMPAHAN FITOPLANKTON DI SUNGAI LANANGAN, KLATEN

2018 ◽  
Vol 7 (3) ◽  
pp. 253-262
Author(s):  
Faudzi Ath Tho Azzam ◽  
Niniek Widyorini ◽  
Bambang Sulardiono
Keyword(s):  
Sampling Method ◽  
Phytoplankton Community ◽  
Diversity Index ◽  
Animal Husbandry ◽  
Open Water ◽  
Survey Method ◽  
Purposive Sampling ◽  
Freshwater Aquaculture ◽  
Range Of Values

Sungai Lanangan merupakan bagian hulu Sungai Bengawan Solo yang terletak di Desa Daleman, Kecamatan Tulung, Kabupaten Klaten. Jenis limbah seperti limbah domestik, industri, pertanian, perikanan dan peternakan telah mencemari Sungai Lanangan. Limbah organik dari industri tepung aren dan mie soun yang dibuang di Sungai Lanangan mencapai 50 ton limbah per hari. Hal tersebut menyebabkan perubahan kualitas air dan komposisi fitoplankton di Sungai Lanangan.Penelitian ini dilakukan dari bulan Januari - Februari 2018 di Sungai Lanangan. Tujuan dari penelitian ini adalah untuk mengetahui kelimpahan dan komposisifitoplankton serta mengetahui kualitas perairan berdasarkan struktur komunitas fitoplankton di Sungai Lanangan tersebut. Penelitian ini menggunakan metode survei denganpengambilan sampel menggunakan metode purposive sampling. Frekuensi pengambilan sampel dilakukan setiap 1 minggu sekali selama 3 minggu. Sampel diambil dari 3 stasiun, dimana stasiun 1 dengan karakteristik perairan terbuka; Stasiun 2 dengan karakteristik dekat industri pengolahan tepung aren; dan stasiun 3 dengan karakteristik dekat dengan daerah budidaya air tawar.Hasil penelitian didapatkan 11 genera fitoplankton yaitu dari kelas Bacillariophyceae (4 genera), Cyanophyceae (2 genera), Chrysophyceae (1 genus), Ulvophyceae (2 genera), Zygnematophyceae (1 genus) dan Chlorophyceae (1 genus). Kelimpahan rata-rata fitoplankton tertinggi terdapat pada stasiun 2 dengan kelimpahan 1.989 ind/l yang didominasi oleh genus Oscillatoria. Indeks keanekaragaman rata-rata pada setiap stasiun adalah 1,68 pada stasiun 1; 1,63 pada stasiun 2; dan 1,52 pada stasiun 3. Dari hasil indeks keanekaragaman yang didapatkan tersebut menunjukkan kisaran nilai antara 1,52 hingga 1,68 yang berarti bahwa kualitas perairan Sungai Lanangan tercemar ringan.  Lanangan river is one upstream of Bengawan Solo river which located at Daleman, Tulung, Klaten. types of waste such as domestic waste, industrial waste, agriculture, fishery and animal husbandry polluted Lanangan river. Especially organic waste from palm starch and soun noodle industry that are dumped in the Lanangan river reaches 50 tonnes waste per day. This research was conducted from January to February 2018 in the Lanangan river. The purpose of this research is to find out the abundance and composition of phytoplankton; and to determine the water qualitybased on the structure of the phytoplankton community in Lanangan river. This research uses survey method and use purposive sampling method. The Frequency of sampling is done once a week for 3 week. The samples taken from 3 stations, where station 1 is open water; Station 2 is near palm starch and soun noodle industry; and station 3 is close to freshwater aquaculture area.The resultsof the research found 11 genus of phytoplankton in class Bacillariophyceae, Cyanophyceae, Chrysophyceae, Ulvophyceae, Zygnematophyceae and Chlorophyceae. The highest average of phytoplankton abundance found in station 2 with 1,989 ind/l which is dominated by the genus of Oscillatoria. The average diversity index each station is 1.68 at station 1; 1.63 at station 2; and 1.52 at station 3. From the results obtained the diversity index indicates the range of values between 1.52 to 1.68 which show that the water quality of Lanangan River is lightly to moderate polluted.  

Molluscs Diversity in Coastal Ecosystem of South Biak, Papua

2017 ◽  
Vol 2 (1) ◽  
pp. 25 ◽  
Author(s):  
Ludi Parwadani Aji ◽  
Andriani Widyastuti
Keyword(s):  
Species Richness ◽  
Community Structure ◽  
Sampling Method ◽  
Diversity Index ◽  
Similarity Index ◽  
Coastal Areas ◽  
Seagrass Beds ◽  
Simpson Index ◽  
Transect Line ◽  
Evenness Index

Coastal areas of Biak Island consist of three major ecosystems: the mangrove, seagrass beds, and coral reefs where a variety of molluscs live. Mollusc diversity in South Biak waters was investigated in September 2011. The observation was conducted at 4 locations, i.e. Paray, Ambroben, Yenures, and Sorido with 2 stations at each location. The study aimed to obtain information on the diversity and community structure of the benthic molluscs (gastropods and bivalves) on the coastal areas of South Biak waters. Sampling method applied was quadrate-transect line in intertidal areas from inshore to offshore. The molluscs (epifauna and infauna) found inside the quadrate-transect were counted and identified. The result showed high benthic mollusc diversity with a total of 94 species, consisting of 75 species of gastropods and 19 species of bivalves. The most widespread gastropod found in all stations was Nassarius sp., while for bivalves was Tellina sp. The highest value of diversity index (H) was 2.96 found in Paray 1 and the lowest was 0.58 in Yenures 1. The Evenness index (E) and Simpson index (D) ranged from 0.27 to 0.96 and from 0.06 to 0.72 respectively. Species richness (d) ranged from 2.89 to 6.84 and similarity index from 3.90 to 42.40.  

scholarly journals Keterkaitan antara Kelimpahan Zooplankton dan Parameter Lingkungan di Perairan Pantai Morosari, Kabupaten Demak

2020 ◽  
Vol 9 (2) ◽  
pp. 157-165
Author(s):  
Titik Mariyati ◽  
Hadi Endrawati ◽  
Endang Supriyantini
Keyword(s):  
Water Quality ◽  
Sampling Method ◽  
Diversity Index ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Marine Resources ◽  
Water Parameters ◽  
Purposive Sampling ◽  
Relationship Analysis ◽  
Close Relationship

Zooplankton berperan sebagai konsumen tingkat pertama, yaitu memindahkan energi dari produsen ke konsumen tingkat dua. Zooplankton dapat digunakan sebagai bahan kajian untuk mengetahui kualitas dan kesuburan suatu perairan yang sangat diperlukan untuk mendukung pemanfaatan sumberdaya pesisir dan laut. Perairan Morosari mengalami degradasi akibat rob dan berkurangnya tanaman mangrove Penelitian ini bertujuan untuk mengetahui hubungan parameter kualitas air dengan kelimpahan zooplankton di Perairan Pantai Morosari, Demak. Penelitian menggunakan metode survei dan penentuan lokasi dipilih dengan menggunakan metode purposive sampling, analisis data meliputi kelimpahan, indeks keanekaragaman, keseragaman, dominasi dan analisis hubungan. Hasil penelitian menunjukkan bahwa nilai korelasi parameter kualitas air yaitu 0,799 (DO), 0,928 (suhu), 0,758 (salinitas), -0,019 (pH), -0,318 (arus). Berdasarkan hasil pengamatan parameter kualitas air terutama DO, suhu, dan salinitas mempunyai kaitan yang erat terhadap kelimpahan zooplankton di perairan Pantai Morosari. Zooplankton acts as the first level consumer, i.e. transferring energy from producers to second level consumers, zooplankton can be used as study material to find out the quality and fertility of water that is needed to support the use of coastal and marine resources. This study aims to determine the abundance of zooplankton, the types of zooplankton and the relation of water quality parameters with the abundance of zooplankton in Morosari Coastal Water, Demak. Research using methods of surveying and determining the location was chosen using the purposive sampling method, data analysis includes abundance, diversity index, uniformity, dominance, and relationship analysis. The results showed that correlation value between water parameters and abundance of zooplankton is 0,799 (DO), 0,928 (temperature), 0,758 (salinity), -0,019 (pH), -0,138 (current). Based on the results of the water quality parameters, especially DO, temperature, and salinity have a close relationship to the abundance of zooplankton in the waters of Morosari Beach.

scholarly journals Short Communication: Silba adipata (Diptera: Lonchaeidae) parasitoids on cayenne pepper (Capsicum frutescens) in Bali, Indonesia

2021 ◽  
Vol 22 (9) ◽  
Author(s):  
Ketut Ayu Yuliadhi ◽  
I WAYAN SUPARTHA ◽  
NI NENGAH DARMIATI ◽  
ALPREDO BANGUN ◽  
I KADEK WISMA YUDHA ◽  
...  
Keyword(s):  
Community Structure ◽  
Sampling Method ◽  
Short Communication ◽  
Diversity Index ◽  
Capsicum Frutescens ◽  
Parasitoid Species ◽  
Parasitization Rate ◽  
Diachasmimorpha Longicaudata ◽  
Low Diversity ◽  
Location Point

Abstract. Yuliadhi KA, Supartha IW, Darmiati NN, Bangun A, Yudha IKW, Utama IWEK, Wiradana PA. 2021. Silba adipata (Diptera: Lonchaeidae) parasitoids on cayenne pepper (Capsicum frutescens) in Bali, Indonesia. Biodiversitas 22: 3929-3935. The black fig fly (Silba adipata) is newly emerging pests that attack cayenne pepper (Capsicum frutescens L.) plants in Bali Province, Indonesia. This study aimed to determine the parasitoid type, community structure, distribution, and parasitization rate of the parasitoids of S. adipata on cayenne pepper in Bali. The sampling method employed in this study involves purposive sampling techniques on 100-150 pieces of cayenne pepper infested with S. adipata at each location point, with the emerging parasitoids identified morphologically. Three types of parasitoid species were associated with S. adipata, which include Asobara japonica Belokobylskij, Fopius arisanus (Sonan), and Diachasmimorpha longicaudata (Ashmead). The parasitoid community structure associated with S. adipata had a low abundance index, low diversity index, and a moderate dominance index. Based on the distribution of the three parasitoids, D. longicaudata is distributed evenly in Bali, whereas F. arisanus was not found in Jembrana . Conversely, A. japonica was only found in Badung, Bangli, Gianyar, and Klungkung. As summary, D. laungicaudata had the highest parasitization rate compared to the F. arisanus and A. japonica. D. longicaudata is a potential parasitoid, which can be studied for the future biological control of S. adipata.

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