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LIMNOTEK
Published by BRIN Publishing
ISSN : 08548390     EISSN : 25498029     DOI : https://doi.org/10.55981/limnotek.xxxx.xxxx
Core Subject : Science, Social, Engineering,
Earth & Planetary Sciences Engineering Environmental Science
The journal establishes an integrated understanding of the interface between natural processes of water resources and inland water ecosystems with their human domains. Incorporating broad themes concerning ecology of inland water ecosystems and perspectives regarding sustainable utilizations of the water resources. Science on inland water ecosystems is an applied multi/interdisciplinary field relating to efforts to monitor, manage, and restore both fresh and brackish water ecosystems. The journal thus underlines significant work that draws on and incorporates elements of hydrology, meteorology, ecology, limnology, ecological economics, and social environmental sciences related to water resources and inland water ecosystems. The journal allows for both monodisciplinary and interdisciplinary submissions and a broad range of methodological approaches, thus appealing to diverse readers. Specific research areas covered include: modeling the impacts of management scenarios (socio-economics-ecological-hydrological impacts); simulation of the alteration of the quality of inland water ecosystems (long-term data series); novel approaches for alternative utilization of inland water ecosystems; the development of novel indices/ criteria to assess the quality of inland water ecosystems; assessments of the economic value of inland water ecosystems’ ecosystem services; the advances of alternative governance to sustainably manage inland water ecosystems; progress on alternative conservation strategies for inland water ecosystems; the development of alternative technologies to mitigate impacts of anthropogenic activities on inland water ecosystems; the advances of technologies to rehabilitate and to restore the quality of inland water ecosystems, water disaster risks and disaster preparedness, resiliencies of water infrastructure and management. Further, research on water resources is concerned with the conservation of quantity and quality of water. Thus, topics related to water resources such: water resources management, water resources information system, water policies and planning, hydrology and hydrogeology, water quality and environment, hydraulics, water and wastewater treatment sustainability, resilience, and adaptation of water resources and infrastructure to uncertain and evolving environments, surface and groundwater resources will be important key part from the journal.
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Proses Permukaan Bumi
Articles 9 Documents
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Search results for , issue "vol. 26 no. 2 (2019)" : 9 Documents clear
KEANEKARAGAMAN DAN KOMPOSISI KEONG AIR TAWAR (MOLLUSCA: GASTROPODA) DI BEBERAPA SITU KABUPATEN BOGOR DAN KABUPATEN SUKABUMI Nova Mujiono; Afriansyah Afriansyah; Alexander KS Putera; Tri Atmowidi; Windra Priawandiputra
LIMNOTEK Perairan Darat Tropis di Indonesia Vol. 26 No. 2 (2019)
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/limnotek.2019.13364

Abstract

Many small lakes in Bogor and surrounding areas continue to shrink by silting and land conversion that will affect the diversity of aquatic fauna species, including freshwater snails. Research on the diversity and distribution of freshwater snails was conducted in Bogor Regency (Situ Cilalay, Situ Ciriung, Situ Kabantenan) and Sukabumi (Situ Gunung) in September-November 2017. This study identified freshwater snail species, analyzed the similarity of species composition and distribution, and analyzed the influencing environmental factors. Snail sampling from each lake was carried out at three stations using 5 x 1 m2 plots. A total of 936 individual specimens from 12 stations have been collected and identified, consisting of 7 families and 12 species of freshwater snails. Filopaludina javanica dominates the population in Situ Cilalay, Situ Ciriung, and Situ Kabantenan with the presence of 417 individuals (44.5%), while Melanoides tuberculata is the most widely distributed species found in 11 of 12 stations. The presence of two species, Clea sp. found in Situ Cilalay and Polypylis kennardi found in Situ Ciriung and Situ Kabantenan, has not been reported previously.
KEANEKARAGAMAN MIKROALGA DI AIR TERJUN SANDO, KOTA LUBUKLINGGAU, SUMATRA SELATAN Harmoko Harmoko; Eka Lokaria; Resti Anggraini
LIMNOTEK Perairan Darat Tropis di Indonesia Vol. 26 No. 2 (2019)
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/limnotek.2019.13365

Abstract

There is still a little exploration of biodiversity in Lubuklinggau City, one of which is on microalgae. This study aimed to determine the biodiversity of microalgae found in Sando Waterfall. This study used survey techniques, and was carried out in June‒July 2017 in Sando Waterfall, Lubuklinggau Barat I District in Lubuklinggau City. Sampling was carried out in the morning at three stations with three replications. Data were collected by observing the microalgae using a microscope and were then analyzed descriptively and qualitatively. The results showed that microalgae found in Sando Waterfall consisted of 4 divisions which are Bacillariophyta, Charophyta, Chlorophyta, dan Cyanophyta. A total of 27 genera and 30 species were found, namely Closterium sp., Cosmarium sp., Micrasterias sp., Oocystis sp., Desmidium sp., Actinastrum sp., Carteria sp., Ulothrix sp., Microspora sp., Spirogyra sp., Oedogonium sp., Euastrum sp., Xanthidium sp., Navicula sp., Asterionella sp., Eunotia sp., Cyclotella sp., Melosira sp., Guinardia sp., Surirella sp., Surirella elegans, Synedra sp., Synedra ulna, Pleurosigma directum, Fragillaria sp., Tabellaria flocculosa, Nitschia sp., Oscillatoria sp., Oscillatoria limosa, and Lyngbya sp. The most dominant division found in Sando Waterfall was Bacillariophyta which also has the highest number of species. There were five species most commonly found in Sando Waterfall, which are also members of the Bacillariophyta division, namely Navicula sp., Eunotia sp., Melosira sp., Surirella sp., and Fragillaria sp. This finding is thought to be related to the adaptability of these species to strong current of water which is the ecological condition of waterfalls. Water qualities measured in this study were the water temperature of 27°C, the pH value of 7.2, the clarity of 37 cm, and the dissolved oxygen concentration of 32 mg/L. These conditions supported the life of microalgae in Sando Waterfall.
NERACA AIR SITU CIKARET DAN SITU KABANTENAN DI KABUPATEN BOGOR MENGGUNAKAN PEMODELAN HIDROLOGI SWAT Claudia Tyas Nugraheni; Hidayat Pawitan; Yanuar Jarwadi Purwanto; Iwan Ridwansyah
LIMNOTEK Perairan Darat Tropis di Indonesia Vol. 26 No. 2 (2019)
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/limnotek.2019.13366

Abstract

Bogor regency which is located in the middle of the Ciliwung basin centered in Cibinong city is experiencing rapid urban development. However, with the rapid urban development, most of these small lakes in either disappear or in degraded conditions. In this area presently still maintain 95 urban small lakes or locally known as ‘situ’. Situ has multifunction such as water retention for flood mitigation, irrigation for urban agriculture, fisheries, water sport activities, and ecotourism. The objective of this study was to analyze the water balance of situ. The model was calibrated and validated on the Kampung Kelapa river gauge with manual calibration. The Soil Water Assesment Tool (SWAT) is a hydrological model designed to predict the impact of land use and management on water, sediment and agricultural chemical yields in watersheds, The model was applied to Situ Kabantenan and Cikaret for modeling of the hydrological water balance. The SWAT model simulation was done for the periods of 2008–2015 while it used land use information in 2014. The Calibration was done in 2014 and the validation in 2013, the R2 and Nash Sutcliffe Efficiency (NSE) of the calibration were 0,58 and 0,55 respectively and the validations were 0,54 and 0,49 respectively. The monthly average of volume of Situ Kabantenan and Situ Cikaret from the simulation were 136,955 m3 and 508,907 m3, respectively. The annual inflow of Situ Cikaret was 24,693,822 m3/year and outflow was 25,177,593 m3/year, precipitation was 648,520 m3/year, evaporation was 166,543 m3/year, delta storage 1,794 m3/year, respectively. The average inflow discharge of Situ Cikaret (2008–2015) were 0.78 m3/s and outflow discharge was 0.80 m3/s. The water balance results showed that both sites were in good condition since they have never passed the emergency spillway, but their function needs to be optimized as a flood controller in the Ciliwung Watershed. This study also showed that the SWAT model can be utilized as a potential monitoring tool, especially for small urban lakes as water reservoirs.
PENENTUAN BATAS TEPI DANAU PAPARAN BANJIR SECARA HITUNG PERATAAN KUADRAT TERKECIL DENGAN MULTIDATA PENGINDRAAN JAUH Atriyon Julzarika; Esthi Kurnia Dewi; Luki Subehi
LIMNOTEK Perairan Darat Tropis di Indonesia Vol. 26 No. 2 (2019)
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/limnotek.2019.13367

Abstract

Nowadays, technology and remote sensing data have developed significantly. These developments started with conventional data to become dynamic data. Technology and remote sensing data can be used for various applications such as mapping of inland water. Inland water resources that include lakes, rivers, and swamps are one of the national priorities, especially in lake mapping. One of the problems with floodplain lakes is that it is difficult to determine the fixed boundaries of the lake surface area. This study aims to obtain a forensic geological boundary mapping of a lake using the least-square adjustment approach in a floodplain lake with multi-data remote sensing. The floodplain lake in this study was Mahakam Cascade Lake in East Kalimantan Province. The fixed boundary of the surface area of the lake was determined using the least-square adjustment approach. One method in the adjustment was the harmonic modeling algorithm. This mapping used multi-data remote sensing in the form of Synthetic Aperture Radar (SAR) and optical imagery. The imagery used was Sentinel-1 which was acquired from 2014 to 2018 and Landsat from 2014 to 2018. This algorithm showed that the fixed boundaries of Mahakam Cascade Lake can be determined with certain tolerances. These fixed boundaries ignored lake tide parameters because the maximum tide value in the lake was only +5 cm. This value was ignored because the vertical accuracy of the topographic data in the big data engine was about 2 m. The fixed delineation of lake edges can be used to determine the lake volume and surface area. The surface area of the lake obtained from the Sentinel-1 imageries was ~ 399,017 km2. Based on Landsat imageries, the surface area of the lake was ~ 399,495 km2. The difference was due to the mixing of sediments and thin turbidity at the edge of the lake. This condition caused differences in reflectance values when acquisitioning the two types of imageries. Basically, this method could be applied for determining the edge of a lake.
KESESUAIAN LAHAN BERDASARKAN INDEKS KONSERVASI SECARA SPASIAL DI DAS CIASEM HULU, SUBANG Hilda Lestiana; Asep Mulyono; Rizka Maria; Dedi Mulyadi
LIMNOTEK Perairan Darat Tropis di Indonesia Vol. 26 No. 2 (2019)
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/limnotek.2019.13368

Abstract

Fenomena alih fungsi lahan hutan dan pertanian menjadi kawasan permukiman, industri dan wisata (kawasan terbangun) di wilayah pengembangan Jalancagak Kabupaten Subang dari tahun ke tahun relatif cepat. Kecenderungan degradasi lahan akibat perubahan penggunaan lahan akan terus berlangsung dan sangat perlu mendapat perhatian dikarenakan wilayah ini termasuk ke dalam kawasan resapan air. Kajian kesesuaian lahan berdasarkan perhitungan indeks konservasi telah dilakukan. Indeks konservasi menunjukkan kemampuan suatu wilayah untuk menyerap air hujan yang jatuh kepermukaan tanah dan menjadi imbuhan air tanah yang dihitung berdasarkan variabel kemiringan lereng, jenis batuan, jenis tanah, curah hujan, dan penggunaan lahan.Penilaian kesesuaian lahan berdasarkan nilai indeks konservasi dilakukan pada tahun 2009, 2014 dan RTRW tahun 2030. Hasilanalisis menunjukkan skenario penggunaan lahan RTRW tahun 2030 mampu mengurangi lahan-lahan yang dikategorikan kritis di wilayah Sub DAS Ciasem hulu dibandingkan dengan tahun 2009 dan 2014.
KERAPATAN POPULASI MAKROFITA BERPENGARUH TERHADAP KELIMPAHAN DAN KEANEKARAGAMAN MIKROALGA EPIFITON DI DANAU TEMPE Nofdi Nofdianto; Livia Rossila Tanjung
LIMNOTEK Perairan Darat Tropis di Indonesia Vol. 26 No. 2 (2019)
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/limnotek.2019.13369

Abstract

Danau paparan banjir seperti Danau Tempe memiliki potensi perikanan air tawar cukup besar karena didukung oleh keunikan dalam hal produktivitasnya. Selain berfungsi sebagai komponen utama dalam produktivitas danau dan sebagai feeding ground bagi berbagai spesies ikan, tanaman air atau makrofita yang tumbuh subur di pinggir danau juga merupakan substrat bagi mikroalga epifiton yang berperan penting dalam produktivitas sekunder danau. Penelitian ini bertujuan untuk menegaskan bahwa pengendalian kerapatan tumbuh makrofita sebagai substrat mikroalga epifiton penting dilakukan dalam mendukung produktivitas perikanan berbasis ekosistem. Penelitian ini dilakukan di Danau Tempe pada bulan Maret, Mei, dan Juli 2017 terhadap kerapatan makrofita yang berbeda berdasarkan penerimaan cahaya. Sampel berupa batang makrofita dengan panjang 10 cm yang terendam dalam air diambil secara komposit sebanyak 5 batang, lalu disikat untuk mendapatkan mikroalga epifiton. Identifikasi epifiton dilakukan di Laboratorium Pusat Penelitian Limnologi LIPI. Hasilnya menunjukkan bahwa kerapatan tumbuh makrofita berpengaruh negatif terhadap kelimpahan dan keanekaragaman mikroalga epifiton di Danau Tempe. Kerapatan tumbuh berhubungan dengan penerimaan cahaya pada substrat, sehingga makrofita dengan kerapatan rendah memiliki kelimpahan epifiton lebih tinggi dibandingkan makrofita yang tumbuh rapat. Dengan demikian, pengaturan kerapatan makrofita bisa menjadi salah satu strategi dalam pengelolaan kawasan dengan menjaga keberlanjutan populasi epifiton sebagai produsen primer yang penting di perairan danau dangkal seperti Danau Tempe.
COVER LIMNOTEK VOL. 26 DES 2019 Admin Limnotek
LIMNOTEK Perairan Darat Tropis di Indonesia Vol. 26 No. 2 (2019)
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/limnotek.2019.17284

Abstract

Cover Limnotek Vol. 26 Des 2019
DEWAN REDAKSI LIMNOTEK VOL. 26 DES 2019 Admin Limnotek
LIMNOTEK Perairan Darat Tropis di Indonesia Vol. 26 No. 2 (2019)
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/limnotek.2019.17285

Abstract

Dewan Redaksi Limnotek Vol. 26 Des 2019
DAFTAR ISI LIMNOTEK VOL. 26 DES 2019 Admin Limnotek
LIMNOTEK Perairan Darat Tropis di Indonesia Vol. 26 No. 2 (2019)
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/limnotek.2019.17286

Abstract

Daftar Isi Limnotek Vol. 26 Des 2019

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