scholarly journals Abundance and Diversity of Diatom Class Bacillariophyceae as Bioindictaor of Pollution in the Waters of Tanjung Luar Fish Landing Based

2021 ◽  
Vol 20 (3) ◽  
pp. 525
Author(s):  
Niswatul Audah ◽  
Lalu Japa ◽  
M. Yamin
Keyword(s):  
Random Sampling ◽  
Sampling Method ◽  
Diversity Index ◽  
Similarity Index ◽  
Pollution Level ◽  
Dominance Index ◽  
Systematic Random Sampling ◽  
Species Similarity ◽  
Sample Points ◽  
Abundance And Diversity

Tanjung Luar is coastal water used as a waste disposal area for Fish Landing Based (FLB) activities. However, the condition of the waters with phytoplankton as a bioindicator has never been reporting. This research aims to know Bacillariophyceae in terms of abundance, diversity, and measurement of environmental pollution variables. Methods Sampling at the study location was determined by a systematic random sampling method. Data analysis Bacillariophyceae were determined using formula abundance, diversity index, and dominance index. The index of similarity of species between sample points was determined based on the Bray-Curtis Cluster Analysis. Furthermore, the results showed an abundance of Bacillaryophyceae of 322,000 individuals / L classified as low, the diversity index of Bacillariophyceae of 2.162 classified as moderate, and a dominance index of 0.138 (without dominating species). The results showed that the highest species similarity index was between sample points II and III (57.9%), and the lowest species similarity index between sample points I and II was 23.7%. Water pollution on the waters of PPI Tanjung Luar is classified as moderate pollution level and oligotrophic fertility.

scholarly journals Abundance and Diversity of Diatom Class Bacillariophyceae in the Waters of Tanjung Luar Fish Landing Based

2021 ◽  
Vol 21 (2) ◽  
pp. 448
Author(s):  
Niswatul Audah ◽  
Lalu Japa ◽  
M. Yamin
Keyword(s):  
Species Diversity ◽  
Sampling Method ◽  
Diversity Index ◽  
Species Abundance ◽  
Wide Distribution ◽  
Species Diversity Index ◽  
Dominance Index ◽  
Systematic Random Sampling ◽  
Species Dominance ◽  
Abundance And Diversity

Diatom class Bacillariophyceae are world wide distribution and commonly dominated the phytoplankton community. The community of diatom class Bacillariophyceae of the waters Tanjung Luar Fish Landing Based (FLB) has never been reported. This study aims to determine the abundance and diversity of diatom class Bacillariophyceae. The sampling sites were determined by using a systematic random sampling method. Data of diatom class Bacillariophyceae were analyzed for species abundance, species diversity index and species dominance index calculations. The results showed, that the abundance of diatom class Bacillariophyceae species were 322.000 ind/L (low category), the species diversity index of diatom class Bacillariophyceae was 2.162 (moderate category), and the species dominance index was 0.138 (none of species dominance).

scholarly journals KEANEKARAGAMAN DAN KOMPOSISI IKAN PADA KONDISI PASANG DAN SURUT DI MUARA SUNGAI KELAY KABUPATEN BERAU KALIMANTAN TIMUR

2019 ◽  
Vol 10 (2) ◽  
pp. 11
Author(s):  
Yudistira Yudistira ◽  
Jusmaldi Jusmaldi ◽  
Medi Hendra
Keyword(s):  
Species Diversity ◽  
Fish Species ◽  
Sampling Method ◽  
Diversity Index ◽  
High Tide ◽  
Similarity Index ◽  
Wiener Index ◽  
Dominance Index ◽  
East Kalimantan ◽  
Evenness Index

Research on diversity and composition of fish at low tide and high tide condition in downstream Kelay River, District Berau, East Kalimantan is not yet know. The purpose of this research was to determine diversity and composition of fish that present at low tide and high tide condition in downstream Kelay River. In research using purposive sampling method and various sizes gill nets used. Results of this research shows that fish were collected at three locations sampling in downstream Kelay River consist of 14 species, 9 families, and 953 individuals. Based on the number of species, diversity Shannon-Wiener index and dominance index has stable of communities, with high value of diversity index (H'=1.975), high evenness index (E=0.749), and low value of dominance index  (D= 0.173). The number of fish species found at low tide were 11 species and at high tide were 12 species. The similarity index of fish species at low tide and high tide condition were 64.3%.

scholarly journals Kelimpahan Dan Keanekaragaman Jenis Ikan di Perairan Ndalir Kabupaten Merauke, Papua

2021 ◽  
Vol 1 (2) ◽  
pp. 33-42
Author(s):  
Dandi Saleky ◽  
Efraim Weremba ◽  
Marius A. Welikken
Keyword(s):  
Relative Abundance ◽  
Fish Species ◽  
Random Sampling ◽  
Sampling Method ◽  
Diversity Index ◽  
Research Data ◽  
Dominance Index ◽  
Sampling Points ◽  
Index Value

This study aims to analyze the diversity of fish species caught on the Ndalir Coast of Merauke Regency. This research was conducted in Juli-August 2020. The determination of the sampling points at the research location used the purposive random sampling method with two observation stations. Analysis of the research data using relative abundance (Kr), Shannon-Wienner index (H '), uniformity index (E), and dominance index (C), The number of fish catches during the study time was 431 which were divided into 12 species of fish. Station two has a greater number of catches than station one. The highest relative abundance was tongue fish (Cynoglossus abbreviation) (Station I) and mullet (Mugil cephalus) (Station II). The diversity index value at the two observation stations is in the medium category. The uniformity and dominance index values ​​show that the species at the two research stations are evenly distributed with no dominating species.

scholarly journals KELIMPAHAN DAN KEANEKARAGAMAN MAKROZOOBENTOS DI SUNGAI AIR TERJUN TUNAN, TALAWAAN, MINAHASA UTARA, SULAWESI UTARA

2018 ◽  
Vol 18 (2) ◽  
pp. 97
Author(s):  
Grasideo V.E. Pelealu ◽  
Roni Koneri ◽  
Regina Rosita Butarbutar
Keyword(s):  
Random Sampling ◽  
Sampling Method ◽  
Diversity Index ◽  
Aquatic Organisms ◽  
North Sulawesi ◽  
Abundance And Diversity

KELIMPAHAN DAN KEANEKARAGAMAN MAKROZOOBENTOS DI SUNGAI AIR TERJUN TUNAN, TALAWAAN, MINAHASA UTARA, SULAWESI UTARAABSTRAKMakrozoobentos merupakan organisme akuatik yang hidup di dasar perairan dengan pergerakan relatif lambat yang sangat dipengaruhi oleh substrat dasar serta kualitas perairan. Penelitian ini bertujuan untuk menganalisis keanekaragaman makrozoobentos yang terdapat di sungai air terjun Tunan, Desa Talawaan, Minahasa Utara, Sulawesi Utara. Pengambilan sampel dilakukan pada tiga stasiun. Stasiun 1 (Air Terjun Tunan), Stasiun 2 (Pintu masuk wisata), dan Stasiun 3 (Perkebunan). Pengambilan sampel makrozoobentos menggunakan metode purposive random sampling. Pengambilan sampel makrozoobentos di dasar perairan dengan menggunakan jaring surber yang berukuran ukuran 25 cm x 40 cm. Hasil penelitian menunjukan makrozoobentos yang ditemukan di sungai air terjun Tunan terdiri dari 3 filum, 3 kelas, 10 bangsa, 20 suku, dan 23 marga serta 379 individu. Marga makrozoobentos yang sering di jumpai yaitu Hydropsyche dan Suku makrozoobentos yang paling sering dijumpai  yaitu suku Heptageniidae.  Indeks keanekaragaman makrozoobentos tertinggi pada stasiun 1 (2,69), kemudian diikuti oleh stasiun 2 (2,31) dan terendah pada stasiun 3 (1,94).Kata kunci: Air terjun Tunan, Indeks Keanekaragaman, Makrozoobentos  ABUNDANCE  AND DIVERSITY OF MACROZOOBENTOS IN TUNAN WATERFALL RIVER, TALAWAAN, NORTH MINAHASA, NORTH SULAWESI ABSTRACTMacrozoobenthos are aquatic organisms that live at the bottom of the waters with relatively slow movements that are strongly influenced by the basic substrate and the quality of the waters. This study aims to analyze the diversity of macrozoobenthos in the Tunan waterfall river, Talawaan Village, North Minahasa, North Sulawesi. Sampling was carried out at three stations. Station 1 (Tunan Waterfall), Station 2 (tourist entrance), and Station 3 (Plantation). Macrozoobenthos samples were taken using purposive random sampling method. Taking macrozoobenthos samples at the bottom of the water using a surber net measuring 25 cm x 40 cm. The results showed that macrozoobenthos found in the Tunan waterfall river consist of 3 phylum, 3 classes, 10 ordo, 20 familia, and 23 genus and 379 individuals. Macrozoobenthic genus that are often encountered are Hydropsyche and the most common macrozoobenthic classis, the Heptageniidae classis. The highest macrozoobenthos diversity index at station 1 (2.69), followed by station 2 (2.31) and the lowest at station 3 (1.94). Keywords: Tunan Waterfall,  Diversity Index, Macrozoobentos

scholarly journals The Perifiton Alga Community in Masang Kecil River Receives Liquid Palm Oil Mill Waste in Kinali District, West Pasaman Regency

2019 ◽  
Vol 7 (2) ◽  
pp. 100
Author(s):  
Vivi Safitri ◽  
Izmiarti Izmiarti ◽  
Jabang Nurdin
Keyword(s):  
Palm Oil ◽  
Sampling Method ◽  
Diversity Index ◽  
Similarity Index ◽  
Average Density ◽  
Sampling Location ◽  
Dominance Index ◽  
Composition And Structure ◽  
Palm Oil Mill ◽  
Mill Waste

The study of the periphyton algae community in Masang Kecil River that received palm oil mill effluent in Kinali District, West Pasaman Regency was held from November 2017 to September 2018. This study aims to determine the composition and structure of periphyton communities in the Masang Kecil River in Kinali, West Pasaman. This study used purposive sampling method with a sampling location of 4 stations. Based on this study, 88 species of periphyton were classified as 3 classes i.e Bacillariophyceae (64 species), Chlorophyceae (15 species) and Cyanophyceae (9 species). The average density is 8.967 ind/ cm2.  The highest relative density (KR) at stations 1,2 and 3 is Navicula lanceolata and station 4 is Fragilaria capucina. Species that are always found at each station (FK= 100%) are Fragilaria capucina, Navicula lanceolata and Synedra ulna. The diversity index in the Masang Kecil River is classified as medium (H’ = 2.87). Equitability index is evenly distributed (E= 0.64). Dominance index (C= 0.12) there is no dominant  species. The similarity index is almost the same except between stations 1 and 3.

scholarly journals Plankton Biodiversity in The Burai River of Ogan Ilir District, Sumatera Selatan

Biota ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 14-21
Author(s):  
Awalul Fatiqin
Keyword(s):  
Random Sampling ◽  
Sampling Method ◽  
Diversity Index ◽  
Dominance Index ◽  
Abundance Index ◽  
High Category ◽  
Wiener Diversity Index ◽  
Main Material

The purpose of this study was to determine the abundance of plankton in the Ogan Ilir regency of South Sumatra. Samples were obtained using a purposive random sampling method with plankton as the main material for measuring abundance and the Shannon Wiener Diversity Index (H), Simpson Dominance Index (C), and plankton abundance index. The results of the study obtained six classes consisting of 15 genera of plankton including Fragielaria, Synedra, Eunotia, Diatom, Fustulia, Oedogonium, Gonium, Chaetophora, Microspora, Allona, Neuplius, Lyngbya, Spirulina, Cyclotella and Dismidium. Diversity value at point 1 (1.75) with medium category, point 2 (3.5) with high category, point 3 (0.75) with the medium category. The diversity value of three points is known to be low in population.

scholarly journals INVENTARISASI JENIS DAN STRUKTUR EKOLOGI ZOOPLANKTON DI SUNGAI MUSI BAGIAN HILIR, SUMATERA SELATAN

2017 ◽  
Vol 14 (3) ◽  
pp. 263
Author(s):  
Eko Prianto ◽  
Husnah Husnah ◽  
Siti Nurul Aida
Keyword(s):  
Sampling Method ◽  
Field Survey ◽  
Diversity Index ◽  
Similarity Index ◽  
Survey Method ◽  
Zooplankton Species ◽  
Dominance Index ◽  
Purposive Sampling ◽  
The Difference ◽  
Set Up

Penelitian yang bertujuan untuk mengetahui struktur komunitas zooplankton di Sungai Musi bagian hilir telah dilakukan pada bulan Mei, September, dan Januari 2007. Penelitian dilaksanakan dengan menggunakan metode survei pada 9 lokasi. Pemilihan lokasi pengambilan contoh dengan menggunakan purposive sampling didasarkan pada mikrohabitat. Contoh zooplankton diambil dengan menggunakan ember 10 l dan total volume yang disaring dengan plankton net 150 l. Parameter yang diukur meliputi kelimpahan, komposisi jenis, keragaman, keseragaman, dan indeks dominasi zooplankton. Hasil analisis jumlah spesies zooplankton yang tertinggi dijumpai pada bulan September dan terendah pada bulan Mei. Indeks keragaman dan kelimpahan zooplankton pada Mei 2006 dan Januari 2007 berkisar antara 0 sampai dengan 2,2 dan 0,8 sampai dengan 21x103 ind.m-3. Indeks keseragaman bervariasi. Nilai yang tertinggi diperoleh pada bulan Januari (0,8 sampai dengan 1), sedangkan bulan Mei dan September 2006. Pada September dan Mei lebih bervariasi dengan kisaran nilai masing-masing 0,6 sampai dengan 1 dan 0,6 sampai dengan 0,9. Selanjutnya untuk dominasi jenis, terdapat 2 stasiun yaitu Sebokor (bulan Mei) dan Selat Cemara (bulan September), yang didominasi 1 jenis zooplankton. Research with aiming to know the community structure of zooplankton at the down stream of Musi Rivers was conducted in May and September 2006, and January 2007. The work was done with field survey method at nine sampling sites, that were set up by using purposive sampling method based on the difference an microhabitat. Samples for zooplankton were collected by using 10 l bucket to sample a total of 150 l of water, and the total volume of wals filtered by using plankton net. Parameters measured include the abundance, spesies composition, diversity, similarity, and dominance index of zooplankton. Results show that the highest number of zooplankton species was found in September while the lowest one was recorded in May. The diversity index and abundance zooplankton in May 2006 and January 2007 were between 0 until 2.2, and 0.8 until 21x103 ind.m-3, respectively. The similarity index varied. The highest value was recorded in january (0.8 until 1) while in may and september 2006 were 0.6 until 1 and 0.6 until 0.9, respectively. Zooplankton was dominanted sebokor and cemara sampling sites.

scholarly journals The The diversity and abundance of Hymenoptera insects on tidal swamp rice field in Indragiri Hilir District, Indonesia

2020 ◽  
Vol 21 (3) ◽  
Author(s):  
ZAHLUL IKHSAN ◽  
HIDRAYANI ◽  
YAHERWANDI ◽  
HASMIANDY HAMID
Keyword(s):  
Species Diversity ◽  
Rice Field ◽  
Diversity Index ◽  
Human Life ◽  
Similarity Index ◽  
Pitfall Trap ◽  
Vital Role ◽  
Tidal Swamp ◽  
Abundance And Diversity ◽  
Number Of Individuals

Abstract. Ikhsan Z, Hidrayani, Yaherwandi, Hamid H. 2020. The diversity and abundance of Hymenoptera insects on tidal swamp rice field in Indragiri Hilir District, Indonesia. Biodiversitas 21: 1020-1026. Hymenoptera is one of the four largest insect orders and it plays a vital role in human life as pollinators, parasitoids, and predators. Hymenoptera parasitoids are particularly important as agents of biological control of pest. The objective of this research was to study the diversity and abundance of Hymenoptera on tidal swamp rice field in Indragiri Hilir District, Riau Province, Indonesia. Samplings were conducted in 3 sub-districts of rice production centers, namely Batang Tuaka, Keritang and Reteh, using four trapping techniques (i.e. insect net, malaise trap, pitfall trap, and yellow pan trap). Shannon diversity index (H '), Krebs evenness index (E), and Jaccard similarity index (Is) were calculated. We found 4,701 individuals consisting of 39 families and 319 species of Hymenoptera at the three studied areas. Tidal swamp rice in Indragiri Hilir District had a high species diversity of Hymenoptera parasitoids and Hymenoptera predators, but a moderate species diversity of Hymenoptera pollinators. Species diversity and evenness of Hymenoptera parasitoids and predators were higher in Keritang than in Batang Tuaka and Reteh. The families of Formicidae, Braconidae, Ichneumonidae, and Scelionidae had the highest number of species, while Formicidae, Scelionidae, Diapriidae, and Braconidae had the highest number of individuals. Based on these findings, the abundance and diversity of Hymenoptera insects in Indragiri Hilir District have the potentials to be developed as biological agents to control pests on tidal swamp rice in this area.

scholarly journals KEANEKARAGAMAN MAKROZOOBENTOS DI SUNGAI TALAWAAN MINAHASA UTARA, SULAWESI UTARA

2015 ◽  
Vol 15 (1) ◽  
pp. 42
Author(s):  
Mentari Maith ◽  
Sendy Rondonuwu ◽  
Adelfia Papu ◽  
Marina F.O. Singkoh
Keyword(s):  
Random Sampling ◽  
Sampling Method ◽  
Diversity Index ◽  
Continuous Exposure ◽  
North Sulawesi ◽  
Bottom Waters ◽  
Environmental Activities

ABSTRAK Makrozoobentos merupakan hewan makroinvertebrata yang menetap di dasar perairan baik sesil, merayap maupun menggali lubang. Beberapa alasan menjadikan makrozoobentos sebagai bioindikator adalah makrozoobentos relatif diam di dasar perairan sehingga terdedah oleh air, pendedahan yang terus menerus menyebabkan makrozoobentos dipengaruhi oleh kegiatan lingkungan dan perubahan tersebut dapat mempengaruhi keanekaragamannya. Penelitian ini bertujuan untuk menganalisis keanekaragaman makrozoobentos di Sungai Talawaan. Lokasi penelitian terletak di Sungai Talawaan, Minahasa Utara, Sulawesi Utara. Penelitian ini menggunakan metode Purposive Random Sampling dengan menggunakan alat jaring surber. Total individu yang didapatkan dari 3 stasiun sebanyak 191 individu dengan jumlah ordo sebanyak 6 yang terdiri dari 14 genus. Genus makrozoobentos yang paling banyak ditemukan pada ke 3 stasiun yaitu Ephemeroptera, Tricoptera dan Coleoptera. Nilai total ke 3 Stasiun termasuk pada kelompok tercemar ringan dengan Indeks keanekaragaman > 2,0 yaitu 2,01. Kata Kunci: Makrozoobentos, Sungai Talawaan, Indeks Keanekaragaman, Minahasa Utara-Sulawesi Utara.   DIVERSITY MACROZOOBENTHOS IN TALAWAAN RIVER NORTH MINAHASA, NORTH SULAWESI ABSTRACT Macrozoobenthos is macroinvertebrate animals that live in the waters of both sessile base, edging and dig a hole. Several reasons make macrozoobenthos bioindicator is macrozoobenthos relatively silent in the bottom waters that were exposed by the water, continuous exposure causes macrozoobenthos influenced by environmental activities and these change may affect biodiversity. This study aims to analyze the diversity of macrozoobenthos in the River Talawaan. Location of the study lies in Talawaan River, North Minahasa, North Sulawesi. The study used Purposive Random Sampling method by using a surber net. Total individuals who come from 3 to as many 191 individual station with the order many as 6 which consists of 14 gems. Genus macrozoobenthos most commonly found at all 3 station are Ephemeroptera, Tricoptera and Coleoptera. The total value of all 3 stations included in the group of lightly contaminated with diversity index > 2,0 is 2,01. Keywords: Macrozoobenthos, River Talawaan, Diversity index, North Minahasa-North Sulawesi.

scholarly journals Sea cucumber community in the coastal area of the Bahoi Village,West Likupang Sub-district, North Minahasa District

2020 ◽  
Vol 8 (1) ◽  
pp. 37
Author(s):  
Andia Tri Fritama Lumbu ◽  
Lawrence J. L. Lumingas ◽  
Gaspar D. Manu
Keyword(s):  
Sea Cucumber ◽  
Diversity Index ◽  
Similarity Index ◽  
Sampling Technique ◽  
Distribution Patterns ◽  
Line Transect ◽  
Dominance Index ◽  
Holothuria Scabra ◽  
Research Site ◽  
Holothuria Atra

This research is conducted in the coastal waters of Bahoi Village, West Likupang Sub-district, North Minahasa District with the aims to know the types of sea-related environmental factors in the research site and know the community structure of the sea cucumber including the density, Index of diversity, dominance index, and distribution patterns. Data collection was done by using the line transect method, and sampling technique by using quadrat. The results of the study found 5 species of sea cucumber i.e. Holothuria atra,  Holothuria scabra,  Bohadschia marmorata, Actinopyga echinites, and  Bohadschia vitiensis. The individual density of all species is 0.12 ind/m2, and the diversity index (H ') 0.950. The value of the similarity index/compatibility obtained is e = 0.918. The result of the calculated dominance index of sea cucumber species is 1.0 and the pattern of spreading species of sea cucumber in the research site shows a random spread pattern because the value of dispersion index  (I) approaches 1 (one). Keywords: community; Sea cucumber; Bahoi; Dominance; Diversity.AbstrakPenelitian ini dilakukan di perairan pantai desa Bahoi, Kecamatan Likupang Barat, Kabupaten Minahasa Utara dengan tujuan untuk mengetahui jenis-jenis teripang yang ada di lokasi penelitian dan mengetahui struktur komunitas teripang yang meliputi kepadatan, indeks keanekaragaman, indeks dominasi, dan pola penyebaran. Pengambilan data dilakukan dengan metode line transek, dan teknik pengambilan sampel dengan mengunakan kuadrat. Hasil penelitian ditemukan 5 spesies teripang yaitu Holothuria atra, Holothuria scabra, Bohadschia marmorata, Actinopyga echinites dan Bohadschia vitiensis. Kepadatan individu dari seluruh spesies yaitu 0,12 ind/m2, indeks keanekaragaman (H’) 0,950. Nilai indeks kemerataan/keserasian diperoleh nilai indeks e = 0,918. nilai indeks dominasi spesies teripang diperoleh 1,0 dan pola penyebaran spesies teripang dilokasi penelitian menunjukkan pola sebaran acak (random) dikarenakan nilai indeks dispersi (I) mendekati 1 (satu).Kata Kunci : Komunitas; Teripang; Perairan Bahoi; Dominasi; Keanekaragaman

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