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.

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.

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 Short Communication: Community structure and diversity of Odonata in Suranadi Natural Park, West Lombok Indonesia

2020 ◽  
Vol 21 (2) ◽  
Author(s):  
MOHAMMAD LIWA ILHAMDI ◽  
AGIL AL IDRUS ◽  
DIDIK SANTOSO ◽  
Gito Hadiprayitno
Keyword(s):  
Community Structure ◽  
Data Collection ◽  
Short Communication ◽  
Environmental Changes ◽  
Diversity Index ◽  
Scientific Information ◽  
Ecosystem Change ◽  
Survey Method ◽  
Transect Line ◽  
Natural Park

Abstract. Ilhamdi ML, Al Idrus A, Santoso D, Hadiprayitno G. 2020. Short Communication: Community structure and diversity of Odonata in Suranadi Natural Park, West Lombok Indonesia. Biodiversitas 21: 718-723. Odonata is an order of insects. The life cycle of this order is dependent on freshwater habitat. Sensitivity to environmental changes causes odonates to be important bioindicators of ecosystem change. The importance of the ecological role of odonates is not followed by adequate scientific information on Odonata communities, especially in the Suranadi Natural Park (SNP). The study aimed to monitor the existence and community structure of Odonata in the SNP area every six months in period. The data collection technique was using a survey method by following the transect line, namely the waterway transect line (WTL), plantation border transect (PT) and settlement border transect (ST). Data collection was done 4 times from April to May 2019, once every 2 weeks. The sampling was done twice in the morning from 08.00 to 11.00 AM and in the afternoon from 03.00 to 05.00 PM. Data were analyzed using the relative frequency equation and Diversity Index. The results showed that there were 16 species of odonates consisting of the family Libellulidae (11 species), Platycnemididae (1 species), Chlorocyphidae (1 species), and Coegrinidae (3 species). Orthetrum sabina, Neurothemis ramburii, Diplacodes trivialis, Gynacantha subinterrupta, Copera marginipes, and Pantala flavescens, are species that are present in all of each observation sites. The waterway transect has the highest diversity index (2.027), followed by settlement transect (1.367), and the lowest is plantation transect (1.131).

scholarly journals Struktur Komunitas Landak Laut di Padang Lamun Pulau Kodingareng, Kepulauan Spermonde

2021 ◽  
Vol 24 (1) ◽  
pp. 63-70
Author(s):  
Wilma Moka ◽  
Dwi Fajriyati Inaku ◽  
Muhammad Rais
Keyword(s):  
Community Structure ◽  
Species Composition ◽  
Sampling Method ◽  
Marine Organism ◽  
Sea Urchins ◽  
Diversity Index ◽  
Seagrass Beds ◽  
Ecological Value ◽  
Tripneustes Gratilla ◽  
Diadema Setosum

Sea urchins is marine organism from Phylum Echinoderms which have high economic and ecological value. Therefore, we need data on the current condition of sea urchins, especially those in the Spermonde Islands. Through this research, it is hoped that the community structure and distribution of sea urchins in Kodingareng Lompo Island, Spermonde Islands can be known. The sampling method used was quadrant transects measuring 5x5 meters on 4 plots in the seagrass area on Kodingareng Lompo Island. The data analysis used was species composition, density, relative density, diversity index, and uniformity index. The results obtained show that there are three species of sea urchins, namely Diadema setosum, Mespilia globulus, and Tripneustes gratilla, basen on morphology identification. Diadema setosum is species with the highest species composition value, namely 92%. The density value (0.017 individuals / m2) and the diversity of sea urchins (H '<1) in the seagrass beds at Kodingareng Island are classified as low. It is hoped that the data obtained from this research can become a reference for the management of biological resources in the Spermonde Islands in the future. Landak laut merupakan salah satu kelas dari Filum Echinodermata yang memiliki nilai ekonomis dan ekologis yang cukup tinggi. Gonad landak laut telah sejak lama dikonsumsi di berbagai negara dunia, dan bahkan sekarang cangkangnya banyak dijadikan souvenir. Karena itu diperlukan data kondisi terkini landak laut, khususnya yang ada di Kepulauan Spermonde. Melalui penelitian ini diharapkan dapat diketahui struktur komunitas maupun sebaran landak laut yang ada di Padang Lamun Pulau Kodingareng Lompo, Kepulauan Spermonde. Metode sampling yang digunakan adalah transek kuadran ukuran 5x5 meter pada 4 plot pada daerah padang lamun di Pulau Kodingareng Lompo. Analisis data yang digunakan adalah komposisi jenis, kepadatan, kepadatan relatif, indeks keanekaragaman, dan indeks keseragaman. Hasil yang didapatkan memperlihatkan bahwa terdapat tiga genus landak laut, yaitu Diadema, Mespilia, dan Tripneustes. Diadema sp. merupakan genus dengan nilai komposisi jenis tertinggi yaitu 92%. Nilai kepadatan (0,017 individu/m2) dan keanekaragaman landak laut (H’<1) di padang lamun Pulau Kodingareng tergolong rendah. Data yang didapatkan dari penelitian ini diharapkan dapat menjadi bahan acuan untuk pengelolaan sumberdaya hayati di Kepulauan Spermonde ke depannya.

scholarly journals STRUKTUR KOMUNITAS MAKROZOOBENTOS DI PERAIRAN TELUK JAKARTA

2017 ◽  
Vol 13 (2) ◽  
pp. 105
Author(s):  
Sri Turni Hartati ◽  
Awwaluddin Awwaluddin
Keyword(s):  
Water Quality ◽  
Organic Matter ◽  
Community Structure ◽  
Diversity Index ◽  
Homogeneity Index ◽  
Total Organic Matter ◽  
Dominance Index ◽  
Water Condition ◽  
Substrate Texture ◽  
Low Diversity

Analisis struktur komunitas makrozoobentos dilakukan terkait dengan upaya pemantauan kondisi perairan Teluk Jakarta dengan membagi perairan ini menjadi 4 wilayah, yaitu A, B, C, dan D. Zona A terletak terjauh dari daratan, kurang lebih 20 mil dan wilayah D semakin mendekat daratan dengan jarak kurang lebih 5 mil. Analisis yang dilakukan meliputi komposisi jenis, kepadatan, keanekaragaman, keseragaman, dominansi, dan beberapa parameter kualitas perairan yang mendukung seperti kedalaman, suhu, kecerahan, kecepatan arus, salinitas, oksigen terlarut (DO), pH, total organik matter, dan tekstur substrat. Hasil penelitian menunjukkan bahwa makrozoobentos yang ditemukan terdiri atas 5 kelas, 42 famili dan 63 genera. Pada wilayah A ditemukan makrozoobentos dari kelas Scaphopoda, Gastropoda, Bivalva, Malacostraca, dan Polychaeta yang didominasi oleh Scaphopoda. Pada wilayah B, C, dan D ditemukan makrozoobentos dari kelas Bivalva, Scaphopoda, Gastropoda, dan Malacostraca, jenis yang mendominasi ke-3 wilayah tersebut adalah Bivalva. Kepadatan makrozoobentos berkisar antara 2,2x103 sampai dengan 3,2x105 ind.m-2. Indeks Keanekaragaman berkisar antara 0,55 sampai dengan 2,95 yang berarti keanekaragaman rendah. Indeks Keseragaman berkisar antara 0,14 sampai dengan 0,79, nilai tersebut termasuk dalam kategori rendah sampai dengan tinggi. Nilai Indeks Dominansi berkisar antara 0,17 sampai dengan 0,86 yang berarti dominansi rendah sampai dengan tinggi. Dominansi terjadi di wilayah D yaitu di stasiun D4 dengan jenis dominan Donax sp. dari kelas Bivalva. Parameter perairan Teluk Jakarta pada umumnya cukup mendukung untuk kehidupan makroozoobentos. The community structure analysis on macrozoobenthos was conducted in relation to the monitoring action of water condition on Jakarta Bay. The bay was classified into 4 zones, such as A, B, C,and D. The zone A is located approximately 20 miles from land and the zone D is nearest (5 miles) from land. The analysis comprised of species composition, abundance, diversity, homogeneity, dominance, and other parameters of water quality such as depth, temperature, tranparancy, current velocity, salinity, dissolved oxygen, pH, total organic matter, and substrate texture. The results show that there were 5 classes of macrozoobenthos, consisting of 42 families and 63 genera. There were Scaphophods, Gastrophods, Bivalvas, Malacostracans, and Polychaetas found in zone A with regard to Scaphophods domination. There were only Bivalvas, Scaphophods, Gastrophods, and Malacostracans found in zone B, C, and D with regard to Bivalvas domination. The abundance of these macrozoobenthos ranged from 2.215 to 323.100 ind.m-2. The diversity index ranged from 0.55 to 2.95 indicating low diversity. The homogeneity index ranged from 0.14 to 0.79, indicating the low to high category. The dominance index was about 0.17 to 0.86, showing the variety water condition. A species, Donax sp. (Bivalva) was most dominant in Zone D (St D4) The parameters of water qualitying Jakarta Bay might be in general to support the life of macrozoobenthos.

STRUKTUR KOMUNITAS MAKROZOOBENTOS DI SUNGAI PAKIL KABUPATEN BANGKA

2018 ◽  
Vol 12 (2) ◽  
pp. 54-63
Author(s):  
Desinawati Desinawati ◽  
Wahyu Adi ◽  
Eva Utami
Keyword(s):  
Water Quality ◽  
Community Structure ◽  
Current Velocity ◽  
Diversity Index ◽  
Mining Activities ◽  
Dominance Index ◽  
Sand Fraction ◽  
Effect Of Water ◽  
Low Diversity ◽  
Macrozoobenthic Community

Pakil River which is located in Paya Benua Village, West Mendo District, Bangka Regency. This river has an impact from mining activities which then affect the macrozoobenthos community. The purpose of this study was to determine the macrozoobenthic community structure in the Pakil River and determine the effect of water quality on macrozoobenthos in the Pakil River. The study was conducted in April 2018 in the waters of the Pakil River, Paya Benua Village, West Mendo District, Bangka Regency. The macrozoobentos sample was taken purposively at 6 observation stations. The results showed that 4 species of macrozoobenthos. With a diversity index of 0.9195 in the category of low diversity, uniformity index of 0.663 was classified as stable and the dominance index of 0.4425 was in the medium category. The effect of TSS parameters and depth greatly affect the life of the macrozoobenthos, while the ones that have sufficient influence are the parameters of current velocity and DO, then those that have no effect are the parameters of pH, temperature and sand fraction.

scholarly journals Struktur Komunitas Collembola pada Tiga Tipe Habitat Sepanjang Daerah Aliran Sungai Brantas Hulu Kota Batu

2016 ◽  
Vol 8 (2) ◽  
pp. 45
Author(s):  
HUSAMAH HUSAMAH ◽  
FATCHUR ROHMAN ◽  
HEDI SUTOMO
Keyword(s):  
Community Structure ◽  
Relative Abundance ◽  
Diversity Index ◽  
Soil Sampling ◽  
Species Diversity Index ◽  
Descriptive Research ◽  
Study Results ◽  
Evenness Index ◽  
Low Diversity ◽  
Biology Laboratory

<p class="5abstrak">Collembola is one of a group of animals that generally live in the soil. Collembola has an important role in the ecosystem due to its function as a subsystem of consumer and decomposition that can be used as bio-indicators. Changing in habitat in the upstream of Brantas River Basin is cause disruption for Collembola community. This is a descriptive research, aims to uncover the information of community structure, including the type found, diversity, evenness, and relative abundance of Collembola in three type habitats (forest, agricultural, and residential). Soil sampling conducted in each type of habitat using TBSF methods. Identification of Collembola samples conducted at the Biology Laboratory of University of Muhammadiyah Malang and verified at Basic Entomology Laboratory, Gadjah Mada University. This study results are; (1) the number of Collembola were found in forest were 21, agriculture were 5, and residential were 17. (2) There is difference in descriptive diversity of Collembola in forest, agricultural, and residential. Collembola species diversity index of forest higher (2.78) compared to agriculture (1.16) and residential (2.42). Forest and residential habitat have moderate diversity, while agriculture has a low diversity. (3) There is difference in descriptive evenness of Collembola in forest, agricultural, and residential. Evenness index Collembola in forest was higher (0.91) than agriculture (0.72) and residential (0.85). Evenness of Collembola in residential is higher than agriculture. All types of habitat, including having a high evenness. (4) There are differences in the relative abundance of descriptive Collembola in forest, agricultural, and residential. Relative abundance of forest, agricultural, and residential varied. The highest relative abundance in forest is <em>Hypogastrura consanguinea, Ascocyrtus</em> sp, and <em>Homidia cingula</em>. The highest relative abundance in agriculture is <em>Pseudachorutes javanicus, Isotomurus palustris,</em> and <em>Ascocyrtus</em> sp. The highest relative abundance in residential is <em>Ascocyrtus sp., Cryptopygus thermophilus</em>, and <em>Isotomuru</em>s <em>palustris.</em></p>

scholarly journals Study of Fish Community in Ulak Lia Lake Sekayu, Musi Banyuasin Regency

2021 ◽  
Vol 2 (1) ◽  
pp. 25
Author(s):  
Helmizuryani Helmizuryani ◽  
Meika Puspita Sari ◽  
Alpis Alpis ◽  
Khusnul Khotimah ◽  
Boby Muslimin
Keyword(s):  
Global Positioning System ◽  
Fish Community ◽  
Sampling Method ◽  
Diversity Index ◽  
Fish Abundance ◽  
Positioning System ◽  
Dominance Index ◽  
Global Positioning ◽  
Dominant Fish ◽  
Low Diversity

This study aims to determine fish's diversity, abundance, and dominance in Ulak Lia Lake, Sekayu District. This research was conducted at Lake Ulak Lia, Sekayu District, Musi Banyuasin Regency, from February to March 2021. The fish sampling method was performed by direct catching at three predetermined observation stations using nets. Netting was carried out for 12 hours, taking catches with traps that have been installed in the morning from 7 a.m. to 9 a.m., depending on conditions or weather. Sampling was marked using a bamboo buffer and the help of the Global Positioning System (GPS). The results showed that the Diversity Index ranged from 1.85 to 1.91 indicating low diversity. The fish abundance index ranged from 30.16 to 36.87 indicating low fish abundance. Where the Dominance Index 0.71-0.72 shows a moderate dominance index. Meanwhile, the dominant fish in Ulak Lia Lake is the Sapil fish (Helostoma temminckii).

scholarly journals STRUKTUR KOMUNITAS PLANKTON PERMUKAAN PADA DANAU LABUAN CERMIN KEC. BIDUK-BIDUK, KAB. BERAU

2018 ◽  
Vol 9 (1) ◽  
pp. 47
Author(s):  
Elis Seftia Arum ◽  
Nova Hariani ◽  
Medi Hendra
Keyword(s):  
Community Structure ◽  
Normal Level ◽  
Power Flow ◽  
Sampling Method ◽  
Diversity Index ◽  
Plankton Sample ◽  
Chemical Parameters ◽  
Dominance Index ◽  
Physico Chemical ◽  
Evenness Index

This study aims to determine (physico-chemical) parameters of water and also community structure of plankton surface in natural tourism Labuan Cermin Biduk-Biduk, Berau, Kalimantan Timur. This study used Purposive Sampling method. Data obtained shows in plankton abundance, diversity index, evenness index and dominance index. The result of study showed that range of temperature between 24,04 oC -26,88 oC, range of salinity between 0.25-0.87o/oowhich classified in freshwater-brackish water, range of power flow between 1.121-2.930 m/s which classified in moderate level, the average pH between 6,76-7,48 which classified in neutral level, range of TDS between  514-788 mg/L which classified in normal level, respectively. Plankton sample showed 27 classes including of 22 classes of phytoplankton with 57 genera and 5 classes of zooplankton with 10 genera. The highest total plankton abundances of  35917 ind/L is in Station A and the lowest total plankton abundances of 8330 ind/L is in Station F. Keywords: Plankton, Labuan Cermin,  Diversity.

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 %.  

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