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

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.

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Community structure of Echinoderms in seagrass beds of Pacitan beaches, East Java, Indonesia

Biodiversitas Journal of Biological Diversity ◽

10.13057/biodiv/d200701 ◽

2019 ◽

Vol 20 (7) ◽

Cited By ~ 1

Author(s):

FARID KAMAL MUZAKI ◽

EDWIN SETIAWAN ◽

GHULAM FATHIR AUTHAR INSANY ◽

NURUL KUSUMA DEWI ◽

IWENDA BELLA SUBAGIO

Keyword(s):

Species Richness ◽

Community Structure ◽

Sea Urchins ◽

Diversity Index ◽

Diversity Indices ◽

Seagrass Beds ◽

Sea Star ◽

Echinometra Mathaei ◽

Belt Transect ◽

Diadema Setosum

Abstract. Muzaki FK, Setiawan E, Insany GFA, Dewi NK, Subagio IB. 2019. Community structure of Echinoderms in seagrass beds of Pacitan beaches, East Java, Indonesia. Biodiversitas 20: 1787-1793. In this study, we attempt to access diversity and community structure of Echinoderms on seagrass beds in each three belt transect (width 2 m, length 100 m) in Tawang and Pidakan beaches, Pacitan, East Java, Java. Observed parameters were species richness, composition, and abundance, as well as diversity indices: Shannon-Wiener's diversity index (H'), Simpson's dominance index (D) and Pielou's evenness index (J). At the end of the study, we identified one species of sea star (Asteroidea), seven species of brittle stars (Ophiuroidea), ten species of sea cucumbers (Holothuroidea) andnine species of sea urchins (Echinoidea). The most dominant species were Ophiocoma dentata (F. Ophiocomidae), Diadema setosum (F. Diadematiidae), Ophiomastix annulosa (F. Ophiocomidae) and Echinometra mathaei (F. Echinometridae). Value of H’ ranged from 0.538 to 1.252 in Tawang and 1.041 to 1.704 in Pidakan; which showing higher species richness and diversity in Pidakan. Echinoderm in the study area was not evenly distributed; D. setosum was very dominant in Tawang beach, while those three other species were more common in Pidakan. Furthermore, most of Holothuroid and Ophiuroid were found only in Pidakan which have relatively more complex habitat.

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Molluscs Diversity in Coastal Ecosystem of South Biak, Papua

Oseanologi dan Limnologi di Indonesia ◽

10.14203/oldi.2017.v2i1.75 ◽

2017 ◽

Vol 2 (1) ◽

pp. 25 ◽

Cited By ~ 1

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.

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

BIOSCIENTIAE ◽

10.20527/b.v17i2.3451 ◽

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.

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Community Structure of Pomacentridae fish in Coastal Waters on Malalayang Dua Village of Manado Gulf

JURNAL ILMIAH PLATAX ◽

10.35800/jip.1.3.2013.2570 ◽

2013 ◽

Vol 1 (3) ◽

pp. 125

Author(s):

Valdino M E Rungkat ◽

Jan FWS Tamanampo ◽

Jhon L Tombokan

Keyword(s):

Community Structure ◽

Species Composition ◽

Relative Density ◽

Coastal Waters ◽

Diversity Index ◽

Species Dominance ◽

Number Of Species ◽

Density Values

ABSTRACT This study was conducted to determine the species composition and commu-nity structure of Pomacentridae (relative density, diversity, dominance and even-ness of species). This research was conducted in waters of the Manado Bay, at Kelurahan Malalayang Dua shore, on August 14th, 2012. The studies was conduc-ted on 2 sites, one has 3 meters depth (01o27'40.5" NL 124o47'32.5" EL) and ano-ther at 10 meters depth (01o27'43.6" NL 124o47'27.8" EL). The results and analysis of data, the total number of species found at a depth of 2 points is 15 species, in which was found at a depth of 3 meters at a depth of 10 species and 15 species discovered 10 meters. The species most commonly found is Pomacentrus brachial and Dascyllus reticulatus. The highest relative density values at a depth of 3 meters is Dascyllus reticulatus (22%) and at depth10 meters is Pomacentrus brachialis (18%). Diversity index at 3 meters depth is 1.941 while at 10 meters is 2.326. The result showed that diversity of Pomacentridae is low at 3 meters depth and average at 10 meters depth which means moderate community hability. At both depths, there was no species dominance and the avenness was stable. Keywords : Community Structure, Pomacentridae, Manado Gulf ABSTRAK Penelitian ini dilakukan untuk mengetahui komposisi spesies dan struktur komunitas ikan Pomacentridae (kepadatan relatif, keanekaragaman, dominasi dan kemerataan spesies). Lokasi penelitian di Teluk Manado, tepatnya di perairan depan Kelurahan Malalayang Dua. Penelitian dilakukan pada 2 titik kedalaman yaitu kedalaman 3 meter (01o27’40.5” LU 124 o47’32.5” BT) dan kedalaman 10 meter pada koordinat (01o27’43.6” LU 124 o47’27.8” BT). Metode yang digunakan adalah metode sensus visual, dengan penentuan jalur mengunakan penanda me-teran sepanjang 50 meter yang diletakkan di daerah terumbu karang yang sejajar garis pantai. Hasil penelitian dan analisis data, jumlah total spesies yang ditemu-kan pada 2 titik kedalaman adalah 15 spesies, di mana pada kedalaman 3 meter ditemukan 10 spesies dan pada kedalaman 10 meter ditemukan 15 spesies. Spe-sies yang paling banyak ditemukan adalah Pomacentrus brachialis dan Dascyllus reticulatus. Nilai kepadatan relatif tertinggi pada kedalaman 3 meter ada-lah spe-sies Dascyllus reticulatus 22% dan pada kedalaman 10 meter adalah Pomacentrus brachialis 18%. Indeks keanekaragaman pada kedalaman 3 meter adalah 1,941 sedangkan pada kedalaman 10 meter dengan nilai 2,326. Hal ini menunjukkanbahwa keanekaragaman ikan Pomacentridae pada kedalaman 3 meter adalah rendah dan pada kedalaman 10 meter keanekaragamannya adalah sedang dengan kestabilan komunitas sedang. Pada ke dua kedalaman ini tidak ada spesies dominasi dan kemerataannya adalah stabil. Kata kunci : struktur komunitas, Pomacentridae, Teluk Manado 1Bagian dari skripsi 2Mahasiswa Program Studi Manajemen Sumberdaya Perairan FPIK-UNSRAT

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Community Structure Of Mushroom Coral (Fungiidae) In Banggai Island , Central Sulawesi

JURNAL ILMIAH PLATAX ◽

10.35800/jip.3.2.2015.13225 ◽

2016 ◽

Vol 3 (2) ◽

pp. 101

Author(s):

Bambang Hermanto ◽

Jemmy Souhoka

Keyword(s):

Community Structure ◽

Species Composition ◽

Coral Species ◽

Diversity Index ◽

Hard Coral ◽

Dominance Index ◽

Free Living ◽

Substrate Structure ◽

Mushroom Coral ◽

Central Sulawesi

Mushroom coral is one of the component of hard coral family in ordo Scleratinia where this life was free living on substrate. Structure community of mushroom coral study in the waters of the Banggai Archipelago in Central Sulawesi province has not been done much. Observation on community structure of mushroom coral at Banggai Archipelago waters was conducted on July 2011. The purpose of this study to determine the species composition, diversity, evenness, density and dominance species of musrhoom coral.The method used in this research is belt transects that made parallelly extended to the shoreline with the size of 100 x 3 m2. Mushroom coral species observation done visually by counting the number of species. It was found 27 species belong to 10 genus of mushroom corals. The highest diversity index (H) was 1,19 at station 9 and the minimum was 0,95 at station 4. The highest avenness index (j) was 0,69 at station 3 and the minimum was 0,44 at station 8. The highest dominance index (D) was 0,14 at station 7 and minimum was 0,08 at station 6. Identification results shows that there are 5 species of mushroom coral found in the 9 station, which is Fungia concinna, F. repanda, F. fungites, F. costulata and Herpolita limax. Keywords : community structure, mushroom coral, banggai archipelago, Central Sulawesi ABSTRAK Karang jamur merupakan salah satu family karang batu yang masuk dalam ordo Scleractinia dimana hidupnya bebas pada substrat. Penelitian mengenai struktur komunitas karang jamur di perairan kepulauan Banggai propinsi Sulawesi Tengah belum banyak dilakukan. Pengamatan struktur komunitas karang jamur di perairan Kepulauan Banggai telah dilakukan pada bulan Juli 2011. Tujuan penelitian ini yaitu untuk melihat komposisi jenis, keanekaragaman jenis, kemerataan jenis, kepadatan dan dominansi jenis karang jamur. Metode yang digunakan dalam penelitian ini yaitu transek sabuk yang dibuat memanjang garis pantai dengan luas transek 100 x 3m². Pengamatan jenis karang jamur dilakukan secara visual dengan menghitung jumlah tiap jenis. Hasil analisis menunjukkan jumlah jenis karang jamur yang ditemukan sebanyak 27 jenis yang mewakili 10 marga. Indeks keanekaragaman jenis (H) tertinggi dijumpai di stasiun 9 sebesar 1,19 dan terendah di stasiun 4 sebesar 0,95. Indeks kemerataan jenis (j) tertinggi ditemukan di stasiun 3 sebesar 0,69 dan terendah di stasiun 8 sebesar 0,44. Indeks dominansi jenis (D) tertinggi dijumpai di stasiun 7 sebesar 0,14 dan terendah di stasiun 6 sebesar 0,08. Hasil identifikasi jenis menunjukkan ada 5 jenis karang jamur yang ditemukan di 9 stasiun yaitu Fungia concinna, F. repanda, F. fungites, F. costulata dan Herpolita limax. Kata kunci : Struktur komunitas, Karang jamur, Kepulauan Banggai

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

Biodiversitas Journal of Biological Diversity ◽

10.13057/biodiv/d220939 ◽

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

Jurnal Pendidikan Matematika dan IPA ◽

10.26418/jpmipa.v9i1.23697 ◽

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.

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KEANEKARAGAMAN IKAN DI SUNGAI KELINGI KOTA LUBUKLINGGAU

Jurnal Biota ◽

10.19109/biota.v4i1.1370 ◽

2018 ◽

Vol 4 (1) ◽

pp. 1-6 ◽

Cited By ~ 2

Author(s):

Dian Samitra ◽

Zico Fakhrur Rozi

Keyword(s):

Data Analysis ◽

Species Composition ◽

Freshwater Fish ◽

Sampling Method ◽

Diversity Index ◽

Fish Communities ◽

Purposive Sampling ◽

Stable Conditions

This study aims to determine the diversity of freshwater fish in Kelingi River Lubuklinggau City. The research was conducted on 6 stations, the determination of the location of the research was done by purposive sampling method. Samples of fish obtained from the catch by using scatter and scoop-net and then identified in the Education Laboratory of Biology STKIP PGRI Lubukinggau. Data analysis includes species composition (KJ), diversity index (H ') and uniformity index (E). The results of identification there are 13 species belonged to 5 Order, 6 Family, and 13 genra. Barbonymus gonionotus has the largest type of composition (69.53%). Diversity index (H ' ) ranged from 0.33 to 1.22 and the uniformity index (E) ranged from 0.24 to 0.84. Conclusions the diversity index of Kelingi river in this study was low and fish communities at stations 1,3 and 6 under stable conditions and at station 2,4,5 under distress conditions

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STUDY ON MACROZOOBENTHOS COMMUNITY IN THE WATERS OF THE RIVER AIR PERIKAN MUNICIPALITY OF PAGAR ALAM SOUTH SUMATRA

BIOVALENTIA Biological Research Journal ◽

10.24233/biov.3.2.2017.73 ◽

2017 ◽

Vol 3 (2) ◽

Author(s):

Rafles Tampubolon ◽

Zazili Hanafiah ◽

Endri Junaidi

Keyword(s):

Species Composition ◽

Sampling Method ◽

Diversity Index ◽

Similarity Index ◽

Survey Method ◽

Research Station ◽

Sampling Station ◽

Sampling Point ◽

Leaf Pack ◽

Index Value

The research entitled “ Study on Macrozoobenthos Community in the Waters of the River Air Perikan Pagar Alam Municipality”, was conducted from November 2007 until March 2008. The aims of the research: to know about composition, density, diversity index, dominancy index, and similarity index, which based on the different microhabitat types. Sampling was carried out on November 2007. Five sampling stations were determined by survey method and the Purposive Sampling method was used at each sampling point to find stony, gravel, sandy and leaf pack area as a different microhabitat substrate. Twenty one orders (Ephemeroptera, Trichoptera, Diptera, Plecoptera, Collembola, Hemiptera, Odonata, Coleoptera, Lepidoptera, Megaloptera, Hymenoptera, Orthoptera, Decapoda, Plesiopora, Tricladida, Amphipoda, Isopoda, Mesogastropoda, Ctenobranchiata, Eulamellibranchiata, and Rhynchobdellida) which are consisted of 70 families and 151 genera were identified from four types of substrates on each sampling station. According to this research, station 4 has the highest in composition (80 genera), and the lowest one at station 1(33 genera). The highest abundance was 12589 ind./m2 found in the station 5, and the lowest one was in the station 1 approximately 880 ind./m2. For the diversity index value, station 3 was the highest (3.1) and the lowest one was station 5 (1.9). The Dominancy index was found in station 5 at the sandy substrates was approximately 0,8 index, which dominated by Tubifex sp. There were differences species composition on each station. Keywords : Macrozoobenthos, community, the river Air Perikan.

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