scholarly journals Komposisi dan Kelimpahan Fitoplankton di Perairan Pandansari, Desa Kaliwlingi, Kabupaten Brebes, Jawa Tengah

2020 ◽  
Vol 9 (1) ◽  
pp. 81-86
Author(s):  
Siti Aminah ◽  
Ria Azizah Tri Nuraini ◽  
Ali Djunaedi

ABSTRAK : Fitoplankton merupakan dasar dari rantai makanan (primary producer) di perairan. Fitoplankton juga memiliki fungsi lain yaitu sebagai  bioindikator untuk mengevaluasi kualitas dan tingkat kesuburan perairan. Keberadaan fitoplankton sangat penting karena mendukung seluruh kehidupan biota laut lainya. Tujuan penelitian ini adalah untuk mengetahui struktur komunitas fitoplankton dan kualitas perairan di sekitar ekowisata “Dewi Mangrove sari” berdasarkan kelimpahan dan keanekargaman fitoplankton. Penelitian ini di laksanakan pada tanggal 26 Juni 2018 dan 7 November 2018. Penelitian ini dilakukan di  sekitar ekowisata mangrove “Dewi Mangrove Sari” Pandansari, Desa Kaliwlingi, Kabupaten Brebes, Jawa Tengah,  dengan 3 stasiun dan 3 pengulangan pengambilan sampel.Metode yang digunakan dalam penelitian ini adalah metode deskriptif, sedangkan dalam penentuan titik lokasi pengambilan sampel fitoplankton menggunakan metode purposive sampling. Hasil dari penelitian ini ditemukan 4 dari 22 genus yaitu,  Bacillariophycea dengan 15 genus,  Dynophyceae dengan 5 genus, Cyanophyceae dengan1 genus dan Crysophyceae ditemukan 1 genus. kelimpahan fitoplankton sebesar 42.555,67 Ind/L pada Bulan Juni 2018 dan 44.072,17 Ind/L untuk bulan November termasuk dalam kondisi kesuburan tinggi (Eutrofik). Indeks keanekaragaman (H’) berkisar antara 1,91 - 2,57, indeks keseragaman (e) berkisar antara 0,65-0,84, indeks dominasi (C) berkisar antara 0,13 – 0,18. Dapat disimpulkan  bahwa indeks keanekaragaman di perairan sekitar ekowisata “Dewi Mangrove Sari” Pandansari, Desa kaliwlingi, Kabupaten Brebes, Jawa tengah termasuk dalam kategori tinggi dan tidak ada dominasi. Perairan sekitar ekowisata “Dewi Mangrove Sari” cukup stabil dan persebaran individu pada setiap genus cukup merata dan tidak ada jenis yang mendominasi. ABSTRACT: Phytoplankton are the basis of the food chain (primary producer) in water. Phytoplankton also has another function, namely as a bio-indicator to evaluate the quality and level of water fertility. The existence of phytoplankton is very important because it supports all other marine life. The purpose of this study was to determine the structure of the phytoplankton community and the quality of the waters around the ecotourism "Dewi Mangrove sari" based on the abundance and diversity of phytoplankton. This research was carried out on 26 June 2018 and 7 November 2018. The research was conducted around the Pandansari "Dewi Mangrove Sari" mangrove ecotourism, Kaliwlingi Village, Brebes Regency, Central Java, with 3 stations and 3 sampling repeats. The method used in this research is descriptive, while in determining the location of phytoplankton sampling locations using a purposive sampling method. The results of this study found 4 out of 22 genera namely, Bacillariophycea with 15 genera, Dynophyceae with 5 genera, Cyanophyceae with 1 genus and Crysophyceae found 1 genus. Phytoplankton abundance of 42,555.67 Ind / L in June 2018 and 44,072.17 Ind / L for November included in conditions of high fertility (Eutrophic). Diversity index (H ') ranged from 1.91 to 2.57, uniformity index (e) ranged from 0.65 to 0.84, dominance index (C) ranged from 0.13 to 0.18. It can be concluded that the diversity index in the waters around Pandansari's "Dewi Mangrove Sari" ecotourism, Kaliwlingi Village, Brebes Regency, Central Java is included in the high category and there is no dominance. The waters around the ecotourism "Dewi Mangrove Sari" are quite stable and the distribution of individuals in each genus is quite evenly distributed and no species dominates. 

2018 ◽  
Vol 7 (3) ◽  
pp. 253-262
Author(s):  
Faudzi Ath Tho Azzam ◽  
Niniek Widyorini ◽  
Bambang Sulardiono

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.  


2019 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Budhy Wiyarsih ◽  
Hadi Endrawati ◽  
Sri Sedjati

Segara Anakan merupakan laguna yang terletak di selatan Pulau Jawa tepatnya di perbatasan antara Jawa Barat dengan Jawa Tengah. Kawasan Segara Anakan merupakan tempat bertemunya sungai besar, sehingga mengalami perubahan penurunan kualitas perairan berupa penyempitan dan pedangkalan akibat proses sedimentasi yang tinggi. Hal ini dikhawatirkan dapat mengakibatkan menurunnya kualitas perairan yang dapat mengganggu pertumbuhan fitoplankton di perairan. Fitoplankton merupakan parameter biologi yang dapat dijadikan bioindikator untuk mengevaluasi kualitas dan tingkat kesuburan suatu perairan. Kondisi tentang lingkungan perairan diperkirakan berubah sepanjang waktu, maka perlu penelitian fitoplankton, untuk mengetahui tingkat kesuburan perairannya. Tujuan dari penelitian ini adalah untuk mengetahui komposisi dan kelimpahan fitoplankton di Laguna Segara Anakan, Cilacap. Penelitian ini menggunakan metode deskriptif eksploratif dengan pengambilan data menggunakan purposive sampling method. Hasil menunjukkan ditemukan 34 genera yaitu Kelas Bacillariophyceae (21 genera), Kelas Cyanophyceae (4 genera), Dinophyceae (6 genera), Chlorophyceae (2 genera), dan Euglenophyceae (1 genus). Kelimpahan fitoplankton berkisar antara 12.945,8-38.194,1 sel/liter. Indeks Keanekaragaman termasuk kategori sedang dengan nilai berkisar 1,60 - 2,32. Indeks keseragaman termasuk kategori sedang hingga tinggi, dengan nilai berkisar 0,59 - 0,81. Indeks dominansi berkisar antara 0,18 - 0,44. menunjukkan bahwa tidak ada genus yang mendominasi. Segara Anakan is a lagoon located in the south of Java Island precisely on the border between West Java and Central Java. Segara Anakan area is the place where the big river meets. Water quality decrease because of narrowing the lagoon due to the high sedimentation process. This may affect the presence of phytoplankton in the water. The quality and the fertility level of aquatic can be evaluated through the phytoplankton existence since phytoplankton is used as a biological indicator for the marine environment. The condition of the aquatic environment is expected to change over time, so it is necessary to study phytoplankton. The purpose of this research is to know about the composition and abundance of phytoplankton in Segara Anakan Lagoon, Cilacap. This research used the descriptive explorative method by data sampling using purposive sampling method. The study showed 34 genera of Bacillariophyceae (21 genera), Cyanophyceae (4 genera), Dinophyceae (6 genera), Chlorophyceae (2 genera), and Euglenophyceae (1 genus). The abundance of phytoplankton ranging from 12.945,8-38.194,1 cells/liter. The Diversity Index is a medium category with values ranging from 1.60 to 2.32. The evenness index is moderate to high, with values ranging from 0.59 to 0.81. The Dominant index ranges from 0.18 to 0.44. The value indicates the category of no dominating genus.


2018 ◽  
Vol 18 (2) ◽  
pp. 97
Author(s):  
Grasideo V.E. Pelealu ◽  
Roni Koneri ◽  
Regina Rosita Butarbutar

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


2021 ◽  
Vol 869 (1) ◽  
pp. 012014
Author(s):  
C Octavina ◽  
M Ulfah ◽  
N Nurfadillah ◽  
S Agustina ◽  
J Niwatana ◽  
...  

Abstract This study aimed to determine the population structure of Lingula sp. in the Aceh northern shore. This research uses purposive sampling method where the sampling locations at Ujong Pancu beach, Kuala Cangkoi beach, Syiah Kuala beach and Alue Naga beach. Sampling was carried out using a quadratic transect (1x1 m) with three stations at each location. The results showed that there is one type of Brachiopods, namely the genus Lingula (Bruguière 1791), species Lingula anatina Lamarck, 1801 which are scattered on the north coast of Aceh. Overall, the abundance of L. anatina was quite high at each location, especially at Kuala Cangkoi beach (2.43 ind/m2), while the lowest abundance was found at Ujong Pancu beach (1,11 ind/m2). In addition, it was also found that L. anatina had a similarity distribution on the Aceh northern shore. The existence of L. anatina on the Aceh northern shore is very dependent on good environmental conditions, in general, the quality of the waters of Aceh northern shore is still within the tolerance limits of these biota. Therefore, population structure of L. anatina is stable, so that this biota resource must continue to be considered and managed properly.


2020 ◽  
Vol 9 (1) ◽  
pp. 41-48
Author(s):  
Yuli Laraswati ◽  
Nirwani Soenardjo ◽  
Wilis Ari Setyati

Ekosistem mangrove mermiliki manfaat sebagai tempat mencari makan serta habitat bagi organisme, mislanya gastropoda. Gastropoda di ekosistem mangrove berperan dalam proses dekomposisi yaitu dengan mencacah daun menjadi lebih kecil, yang kemudian dilanjutkan oleh mikroorganisme. Kepadatan  gastropoda dipengaruhi oleh kegiatan yang terdapat pada ekosistem dan dapat memberikan efek pada kelangsungan hidup gastropoda.Tujuan penelitian adalah untuk mengetahui struktur komunitas gastropoda pada ekosistem mangrove Desa Tireman Kecamatan Rembang, Jawa Tengah. Metode penentuan lokasi sampling menggunakan metode purposive sampling pada 3 lokasi dengan kerapatan mangrove yang berbeda. Pengambilan sampel gastropoda dilakukan dalam transek 5 x 5m dan sampel yang didapat kemudan disortir, diawetkan dan diidentifikasi. Hasil penelitian ditemukan 9 spesies gastropoda termasuk kedalam 3 famili yaitu Casidula nucleus, C. aurisfelis (Ellobiidae), Littoraria scabra, L. carinifera, L. Melanostama (Littorinidae), Cerithidea quadrata, C. cingulata, C. alata, Telescopium telescopium (Potamididae). Spesies yang paling sering ditemukan adalah Cassidula aurisfelis dan Cassidula nucleus. Nilai rata-rata kelimpahan berkisar antara 6,28 - 15,72 Ind/m2. Nilai indeks keanekaragaman termasuk ke dalam kategori rendah hingga sedang. Nilai rata-rata indeks keseragaman termasuk kedalam kategori rendah (0.15-0.27). Nilai rata-rata indeks dominansi menunjukkan tidak adanya dominansi dari spesies tertentu. Pola sebaran menunjukkan pola sebaran mengelompok dan acak. Nilai kesamaan komunitas gastropoda tergolong dalam kategori tinggi. Frekuensi kehadiran gastropoda kategori jarang hingga sangat sering.  The mangrove ecosystem has benefits as a place to eat and habitat for the organism, the gastropod's missile. Gastropods in the mangrove ecosystem play a role in the decomposition process, with the smaller leaves, which are then followed by microorganisms. The density of gastropods is influenced by activities found in ecosystems and can provide an effect on the viability of gastropods. The purpose of research is to know the structure of the gastropods community in the mangrove ecosystem of Tireman Village Rembang District, Central Java. Sampling method of determining location using purposive sampling method in 3 locations with different mangrove density. The gastropod sampling is done in the 5 x 5m transect and the samples obtained are then sorted, preserved and identified. The results of the study found 9 species of gastropods included in the three families, namely Casidula nucleus, C. Aurisfelis (Ellobiidae), Littoraria scabra, L. Carinifera, L. Melanostama (Littorinidae), Cerithidea quadrata, C. cingulata, C. alata, Telescopium telescopium (Potamididae). The most commonly found species are the Cassidula aurisfelis and the Cassidula nucleus. The average value of abundance ranges between 6.28-15.72 Ind/m2. The value of diversity index belongs to low to moderate category. The average value of uniformity index is included in low category (0.15-0.27). The average value of the Dominancy index indicates the absence of dominance of a particular species. The spread pattern shows both group and random distribution patterns. The value of gastropods community similarity belongs to high category. The frequency of presence of gastropods is rare until very frequent.


Author(s):  
Ruchika Verma ◽  
Seema Dhawan

The study attempted to find out the quality of the evaluation procedure of B.Ed. programme of Garhwal University, the Central University in view of NCTE Norms. The study also reveals the method and procedure of evaluation according to the latest 2 years B.Ed. programme. For the study, purposive sampling method was used. The tools – questionnaire and interview schedule was developed. On the basis of findings, it concluded that the evaluation procedure was in accordance with the NCTE Norms. With the implementation of two years B.Ed. course, the method of evaluation has also become more practical oriented, which has become a remarkable achievement and surely enhance the quality of prospective teachers


BIOSCIENTIAE ◽  
2021 ◽  
Vol 17 (2) ◽  
pp. 37
Author(s):  
Sukoco Sukoco ◽  
Gunawan Gunawan ◽  
Muhamat Muhamat

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.


2019 ◽  
Vol 19 (3) ◽  
pp. 602
Author(s):  
Mila Triana Sari ◽  
Hartati Sandora ◽  
Haflin Haflin

The solitory custom community of Suku Anak Dalam (SAD) is one of group society whose life are depend to the natural researches in the forest. It is needed an effort to provide service in order to meet their needed, especially health care service for improving their quality of life in the solitary custom Community of Suku Anak Dalam.  This research was conducted in order to know about the persepsion of SAD society towards Health Care Service in the Working Area of Puskesmas Pematang Kabau. This research was conducted on Januari until February 2017 for the purpose of getting understanding about persepsion of solitary custom Community of Suku Anak Dalam towards health care service, the number of participants were 15 people. This is qualitative research with purposive sampling method. The research instruments were indepth interview and interview guide. The result of the research analyzed by using Colaizzi Technique. The finding of the research showed five themes:  the reason of SAD Society in terms of receiving care service. Secondly, the respond of SAD society, thirdly, about the changing and the impact of SAD society. Fourth, the meaning of health care service to SAD society. And fifth the experience of SAD society towards health and service.SAD society gave respond about perception or possitive support towards Health Care Service.


Author(s):  
Erwin Theofilius ◽  
Zahidah Hasan ◽  
Asep Agus Handaka ◽  
Herman Hamndani

This study conducted to determine the water quality of Situ Ciburuy based on the structure of the gastropod community as a bioindicator. The survey method used in this study based on collecting data directly at the research area (purpose sampling method).  For instance, species and density of gastropods were descriptively analyzed, using diversity index and evenes index. For instance, The findings showed that level of water quality in  Situ Ciburuy based on gastropods bioindicators was lightly polluted. That is indicated by the low to moderate diversity of gastropods, which ranges from 1.31-1.98. The Shannon evenness index (0,73-0.95) revealed low gastropod species diversity in Situ Ciburuy, indicating low evenness of gastropod in Situ Ciburuy.


2018 ◽  
Vol 3 (4) ◽  
pp. 822-829
Author(s):  
Achmad Dairobbi ◽  
Irfan Irfan ◽  
Ismail Sulaiman

Buah kopi memiliki kandungan gula tinggi yang dapat diproses dengan cara fermentasi alami. Fermentasi kopi arabika bertujuan untuk mengurangi rasa pahit dan meningkatkan citarasa kopi. Senyawa-senyawa kompleks pada kopi fermentasi akan meningkatkan mutu kopi. Penelitian ini menggunakan metode survey purposive sampling, yaitu cara pengambilan sampel berdasarkan pertimbangan tertentu dan disesuaikan dengan ketersediaan produsen wine coffee. kadar air wine coffee rata-rata 9.08% (SNI), kadar abu rata-rata 4.5% (SNI) dan kadar alkohol 0%. Dari 6 sampel wine coffee yang di analisis, total skor terbaik uji deskriptif ditunjukkan pada sampel E yaitu 83,75 dan sampel F yaitu 83,00. Secara keseluruhan, 6 sampel wine coffee di Kabupaten Aceh Tengah terdapat perbedaan pada lamanya waktu fermentasi wine coffee yang dibutuhkan. Hal ini dibuktikan pada sampel E yaitu proses pembuatan wine coffee dilakukan dengan waktu fermentasi 7-10 hari pada suhu secara natural di dalam ruang tertutup. Abstract: Coffee fruit has a high sugar content that can be processed by natural fermentation. Fermented arabica coffee aims to reduce bitterness and improve coffee flavor. The complex compounds in fermented coffee will improve the quality of coffee. This research uses survey purposive sampling method, that is the way of sampling based on certain consideration and adjusted with the availability of wine coffee producer. Water wine coffee average 9.08% (SNI), average ash content of 4.5% (SNI) and alcohol content 0%. From 6 samples of analyzed wine coffee, the best total score of descriptive test is shown on sample E that is 83,75 and sample F is 83,00. Overall, 6 samples of wine coffee in Aceh Tengah District have differences in the duration of fermentation of the required coffee. This is evidenced in the sample E is the process of making wine coffee is done with a fermentation time of 7-10 days at a temperature naturally in a closed space.


Sign in / Sign up

Export Citation Format

Share Document