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 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 %.  

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.  

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 Zonasi, Keanekaragaman, dan Pola Migrasi Ikan di Sungai Keyang, Kabupaten Ponorogo, Jawa Timur

2018 ◽  
Vol 16 (1) ◽  
pp. 78
Author(s):  
Vivin Alfyana Yulia Pratami ◽  
Prabang Setyono ◽  
Sunarto Sunarto
Keyword(s):  
Sampling Method ◽  
Poecilia Reticulata ◽  
Diversity Index ◽  
Similarity Index ◽  
Fish Migration ◽  
Environmental Condition ◽  
Anabas Testudineus ◽  
Purposive Sampling ◽  
Channa Striata ◽  
And Migration

Zonasi, Keanekaragaman dan Pola Migrasi Ikan di Sungai Keyang, Kabupaten Ponorogo, Jawa TimurVivin Alfyana Yulia Pratami1, Prabang Setyono2, Sunarto31Program Studi Biosain, Fakultas Pascasarjana, Universitas Sebelas Maret Surakarta, email: [email protected] Universitas Sebelas Maret Surakarta (email: [email protected])3Pascasarjana Universitas Sebelas Maret Surakarta (email: [email protected])  ABSTRAKIkan adalah salah satu biota air yang rentan terhadap perubahan kondisi lingkungan, sehingga dapat digunakan sebagai indikator lingkungan. Penelitian ini bertujuan untuk mengetahui zonasi, keanekaragaman, serta pola migrasi ikan di Sungai Keyang, Kabupaten Ponorogo. Penelitian dilakukan pada bulan Oktober-November 2017 dengan metode purposive sampling pada 3 stasiun pengamatan. Pengukuran faktor fisika kimia air meliputi suhu, pH, DO, BOD, CO2, kekeruhan, kecerahan, serta padatan terlarut (TDS). Hasil penelitian yang diperoleh yaitu di Sungai Keyang terdapat 6 famili dan 11 spesies ikan. Famili tersebut adalah Poecilidae, Cyprinidae, Balitoridae, Sisoridae, Anantidae, serta Channidae. Spesies yang ditemukan yaitu Poecilia reticulata, Rasbora argyrotaenia, Rasbora dusonensis, Rasbora paviana, Rasbora tornieri, Puntius amphibious, Poropontius tawarensis, Nemacheilus fasciatus, Glyptothorax platypogon, Anabas testudineus, dan Channa striata. Spesies yang memiliki nilai kepadatan tertinggi yaitu P. reticulata sebanyak 39 individu dan R. dusonensis sebanyak 27 individu pada stasiun 2 dan 17 individu pada stasiun 3. Indeks keanekaragaman ikan pada semua stasiun termasuk dalam kategori sedang yaitu secara berturut-turut 1,57; 1,80; dan 1,45. Indeks kemerataan ikan di semua stasiun termasuk dalam kategori tinggi yaitu 1,64; 1,73; dan 1,87, sedangkan indeks dominansi ikan termasuk dalam kategori rendah yaitu secara bertutut-turut 0,28; 0,23; dan 0,28. Simpulan dari penelitian ini adalah zonasi persebaran ikan di Sungai Keyang didominasi oleh genus Poecillia dan Rasbora, keanekaragaman ikan termasuk dalam kategori sedang, serta pola migrasi masing-masing spesies ikan berbeda yaitu ada yang selalu di tepi dan ada yang menyebar baik untuk tujuan reproduksi atau mencari makan.Kata kunci: keanekaragaman ikan, pola migrasi ikan, Sungai Keyang, zonasiABSTRACTFish is one of the water organism that susceptible to change of environmental condition, so it is can be used as bioindicator of environmental pollution. This research is purposed to determine the spread zonation, diversity, and migration structure of fish in Keyang River, Ponorogo Regency. Sample was conducted in October-November 2017with purposive sampling method in 3 observation stations. The results of this research were 6 families and 11 species. The families are Poecilidae, Cyprinidae, Balitoridae, Sisoridae, Anantidae, and Channidae. The species were found Poecilia reticulata, Rasbora argyrotaenia, Rasbora dusonensis, Rasbora paviana, Rasbora tornieri, Puntius amphibious, Poropontius tawarensis, Nemacheilus fasciatus, Glyptothorax platypogon, Anabas testudineus, and Channa striata. The highest density species are P. reticulata with 39 individual and R.dusonensis with 27 individual at station 2 and 17 individual at station 3. The diversity index of fish in all observation stations was included in medium category (1,57; 1,80; and 1,45). The similarity index (Evennes index) in all stations was included in high category (1,64; 1,73; and 1,87). The Simpson’s index in all stations was included in low category (0,28; 0,23; and 0,28). The conclusions of this research are Poecillia and Rasbora was dominated the fish spread zonation, diversity of gastropods in Keyang River included in medium category, and each spesies had different migration structure, that are at the side or spead of the river with the purpose for reproduction or looking for food.Keywords:  fish biodiversity, fish migration structure, Keyang River, zoningCitation: Pratami, V. A. Yulia., Setyono, P dan Sunarto. (2018). Zonasi, Keanekaragaman Dan Pola Migrasi Ikan Di Sungai Keyang, Kabupaten Ponorogo, Jawa Timur. Jurnal Ilmu Lingkungan. 16(1), 78-85, doi:10.14710/jil.16.1.78-85

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%.

Study of Molluscs Diversity as Ecosystem Engineer from Beach of Sungai Bakau Village, Tanah Laut, South Kalimantan

2020 ◽  
Vol 4 (2) ◽  
pp. 77-88
Author(s):  
Anang Kadarsah ◽  
Cynthia Agustina Ekaputri ◽  
Abdul Gafur
Keyword(s):  
Sampling Method ◽  
Ecosystem Engineer ◽  
Diversity Index ◽  
Similarity Index ◽  
Sandy Beaches ◽  
Research Station ◽  
Water Parameters ◽  
The Difference ◽  
And Function ◽  
Sand Dust

Molluscs are engineered biota that play an important role in changing the structure and function of ecosystems, including coastal and mangroves. This study aims to record the diversity of molluscs as a group of engineers in coastal areas in Sungai Bakau Village, Tanah Laut, South Kalimantan. Purposive random sampling method was used to obtain mollusc data at three observation stations (Station 1 : sandy beaches, Station 2 : rocky beaches, and Station 3 : river estuaries). Only one type of bivalve was found (Meretirix meretrix) and 13 types of gastropods (Nassarius Sp., Turricula javana, Cerithidea alata, Polygona angulate, Distorsio decipiens, Latirus pictus, Bursa granularis, Latirus sp., Littorina undulate, Naticarius hebraeus, Murex. elenensis, Neverita didyma, and Turritella terebra). The highest diversity index (1.95) was found at station 1. While the evenness index is 0.755. Similarity index was 92.85% (stations 1-2 and stations 1-3) while at stations 2-3 was 85.71%. The highest density of Cerithidea alata is reached 2,996,700 ind/Ha and the least was Turritella terebra (20,000 ind/Ha). Water parameters between observation stations were close to each other : pH ± 7.6 - 7.7, temperature ± 29.3 - 29.7 0C, and salinity ± 34.9 - 35.4 ppt. The difference between research stations can be seen from sediment content. Station 1 has the highest sand content (96.2%). Station 2 consists of 64.7% sand dust and 20.6% clay. Station 3 has the highest dust content, reaching 84.6%. The types and presence of mollusks (bivalves and gastropods) at each research station is vary in value.

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 The Fish Fauna in Lakitan River, Musi Rawas Regency, South Sumatra

2019 ◽  
Vol 4 (1) ◽  
pp. 11-20 ◽  
Author(s):  
Dian Samitra ◽  
Zico Fakhrur Rozi
Keyword(s):  
Data Analysis ◽  
Diversity Index ◽  
Similarity Index ◽  
Fish Fauna ◽  
Survey Method ◽  
Fish Diversity ◽  
Dominance Index ◽  
Ecological Index ◽  
Direct Sampling ◽  
Evenness Index

  Fish diversity in the Lakitan River is not well recorded, even though the data is important to add information about the diversity of freshwater fish in Indonesia. This study aims to study fish composition and ecological index in the Lakitan River. The study was conducted in the Lakitan River, Musi Rawas Regency, South Sumatra Province. The method used was the survey method. The direct sampling was done at 5 stations, the numbering of stations followed the direction of the river from upstream to downstream. The data at each station are tabulated based on species, family and order. Data analysis in-cludes a diversity index, evenness index, dominance index, and sim-ilarity index. The fish caught during the study were 418 individuals, which were identified into 20 species and 11 families. Barbonymus gonionotus is the most captured species in the Lakitan River. Cypri-nidae is the most captured family (9 species). The highest diversity index was found at station 5, with the number of fish collected was 16 species. The evenness index at 5 stations showed the equivalent species distribution and stable communities. The domination index at 5 stations were at, low category. The similarity index between sta-tions in Lakitan River which ranging from 0.65 – 0.97. These results indicate that fish diversity in the Lakitan River medium biodiversity. 

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

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.

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.

Sign in / Sign up

Export Citation Format

Share Document