scholarly journals ANALISIS KELAYAKAN LOKASI BUDIDAYA RUMPUT LAUT DI PERAIRAN TELUK DODINGA KABUPATEN HALMAHERA BARAT

2012 ◽  
Vol 8 (1) ◽  
pp. 23
Author(s):  
Adnan Sj Wantasen ◽  
. Tamrin

The study was aimed at knowing the feasibility of the waters of Dodinga Bay for seaweed; Kappaphycus alvarezii culture development.  The study used a survey method covering aquatic physical, chemical and biological parameters.  Result showed that physical, chemical and biological parameters fulfilled the criteria for the seaweed growth. Based on the suitability of the water used in this study, Dodinga Bay waters was categorized as S-2 class or having median suitability criteria, i.e. the water possessed moderate threshold for seaweed culture or had animal effect on the aquatic environmental quality, and could still be utilized for seaweed culture development under several technical prerequisites. Keywords: Kappaphycus alvarezii, seaweed culture development.   Penelitian ini bertujuan untuk mengetahui kelayakan perairan untuk pengembangan budidaya rumput laut Kappaphycus alvarezii di Pantai Dodinga.  Penelitian ini menggunakan metode survei meliputi parameter fisik, kimia dan biologi perairan.  Hasil penelitian menunjukkan bahwa parameter fisik, kimia dan biologi memenuhi kriteria untuk pertumbuhan rumput laut.  Berdasarkan kesesuaian air yang digunakan dalam penelitian ini, perairan Teluk Dodinga dikategorikan kelas S-2 atau memiliki kriteria kesesuaian median, yaitu perairan yang memiliki batas moderat untuk budidaya rumput laut atau kurang berpengaruh pada kualitas lingkungan air, dan masih bisa dimanfaatkan untuk pengembangan budidaya rumput laut di bawah beberapa prasyarat teknis. Kata kunci: Kappaphycus alvarezii, pengembangan budidaya rumput laut.

2018 ◽  
Vol 10 (5) ◽  
pp. 1373-1392
Author(s):  
Taina Turial da Silva ◽  
Kamila Soares do Espírito Santo ◽  
Silvia T. Matsumoto ◽  
Josimar Ribeiro

2012 ◽  
Vol 13 (1) ◽  
pp. 33
Author(s):  
Rustam Rustam

The regency of Barru is a potential region for Tiger prawn cultured in the South Sulawesi Province. Generally, thisaquaculture activity is based on the application of intensively cultivated pattern by using artificial feed as a sourceof the prawn foremost meal. Some research suggested that an intensive pattern of prawn cultured generatessome waste products that are significantly to affect such physical, chemical as well as biological parameters ofcoastal water condition. That the change in environmental quality of coastal water will affect commercial tigerprawn that is the role of water to support sustainable cultured through its carrying capacity. This research wasaimed to analyze physical, chemical and biological parameters of coastal water and to ensure its carrying capacityin maintaining commercially tiger prawn cultured. The results are expected to be some more valuable referencesfor the benefit of the development of tiger prawn aquaculture. The research was conducted in the coastal waterfrom June to December 2007. Observation was made in order to find out physical, chemical, and biological factorsthroughout the stations (i.e., sea, coastal, pond, estuaria and the outlet of the farm stations). To examine thephysical, chemical and biological parameter of spatial characteristic, a Principal Component Analysis (PCA) wasused. The used approaches to determine carrying capacity were based on capacity and receivance ability ofwaters and oxygen content. The results of this research show that the entirely physical and chemical parametersof coastal water of the Barru regency were exceeded that of the requirement thresholds of the total suspendedsediment (TSS) and the chemical oxygen demand (COD). A spatial distribution of physical and chemicalcharacteristics was measured high by TSS and COD, as well as the level of water turbidity, all at the outflow ofestuaria and the Outlet; meanwhile, the value of NO2, Phosphate, and NH3 substances was recorded high at thepond. A biological parameter was characterized by the existence of phytoplankton through its density and abundanceas well. Those of the Class Bacyllariophyceae was dominantly encountered to attain at the top as high as 75.2% inspecies composition, followed by Cyanophyceae 9.3% at the second, and the rest Chlorophyceae 8.9% andDyanophyceae and Euglenophyceae 5.9% and 0.7% respectively. Based on the stationed preferences, those in thecoastal, the pond, and the Outlet were dominated by Bacyllariophyceae, whereas the estuaria by Cyanophyceae.The Shannon’s index of diversity (H’) of the entirely stations was varied among 1.01 – 2.12 that the lowest one at theestuaria and the highest at the sea. The coastal water has its carrying capacity to support the excess of 506,437kg organic waste substances based on the necessity of oxygen content suspending in the water column. Therefore,the given pond is feasible to develop to reach as much as 219 Ha intensive ponds, or 481 Ha semi-intensive pondson the other way.


2016 ◽  
Vol 8 (1) ◽  
pp. 29 ◽  
Author(s):  
Nyoman Radiarta ◽  
Erlania Erlania ◽  
Joni Haryadi ◽  
Annisya Rosdiana

<p>Kebijakan pembangunan kemandirian dalam budidaya perikanan dan membangun kemandirian pulau-pulau kecil merupakan kebijakan program Kementerian Kelautan dan Perikanan dalam mendukung poros maritim nasional. Pulau Sebatik di Kabupaten Nunukan memiliki potensi sumberdaya pesisir dan laut cukup besar untuk dikembangkan diantaranya potensi pengembangan budidaya laut, terutama budidaya rumput laut. Penelitian ini bertujuan untuk mengevaluasi kondisi dan langkah-langkah strategis pengembangan budidaya rumput laut di Pulau Sebatik, Kabupaten Nunukan Provinsi Kalimantan Utara. Data dan informasi dikumpulkan melalui media diskusi (Focus Group Discussion/FGD), kunjungan ke lokasi pengembangan budidaya rumput laut, dan data sekunder. Data dianalisis secara deskriptif dengan memberikan opsi-opsi kebijakan pengembangan budidaya rumput laut. Pengembangan budidaya rumput laut di Kabupaten Nunukan cukup berkembang dengan pusat kawasan pengembangannya di Kecamatan Nunukan Selatan. Kappaphycus alvarezii (cottonii) merupakan jenis yang umumnya dibudidayakan dengan metode longline. Dalam tulisan ini, potensi, permasalahan, dan strategi pengembangan budidaya rumput laut yang teridentifikasi di lokasi penelitian dibahas secara komprehensif.</p><p>Policy on aquaculture development in the small and the most outer islands is a strategic program from Ministry of Marine Affair and Fisheries to support national maritime shaft. Sebatik Island in Nunukan Regency has a large potential of coastal and marine resources to be developed include the development of marine aquaculture, especially seaweed culture. This study aimed to evaluate condition and strategic steps in the development of seaweed aquaculture in Sebatik Island, Nunukan Regency North Kalimantan Province. Data and information collected through Focus Group Discussion (FGD), field visit to seaweed aquaculture areas, and secondary data. Data were analyzed descriptively by presenting policy options for seaweed aquaculture development. Marine aquaculture especillay seaweed culture was well developed in Nunukan Regency, which was mainly concentrated in South Nunukan. Kappaphycus alvarezii (cottonii) is the main species cultivated in this region by using long line method. In this paper, the potential, problems and development strategy of seaweed cultivation were identified and discussed comprehensively.</p>


2017 ◽  
Vol 12 (2) ◽  
pp. 187
Author(s):  
Andi Akhmad Mustafa ◽  
Tarunamulia Tarunamulia ◽  
Hasnawi Hasnawi ◽  
I Nyoman Radiarta

Kabupaten Kepulauan Sangihe dengantiga pulau terdepannya memiliki potensi untuk pengembangan budidaya rumput laut (Kappaphycus alvarezii), namun belum tersedia data kondisi perairannya.  Kajian bertujuan untuk mengetahui karakteristik, kesesuaian, dan daya dukung perairan untuk budidaya rumput laut di kawasan pesisir Kabupaten Kepulauan Sangihe.  Data  kondisi perairan yang dikumpulkan berupa lingkungan fisik dan kualitas air.  Analisis dengan weighted linear combinationdalam SIG dilakukan untuk penentuan kesesuaian perairan danbesarnya kapasitas perairan digunakan untuk penentuan daya dukung perairan. Hasil kajian menunjukkan bahwa, karakteristik perairan Kabupaten Kepulauan Sangihe dapat mendukung usaha budidaya rumput laut, namun kedalaman perairan yang relatif dangkal dan adanya alur pelayaran yang menjadi faktor pembatas dalam kesesuaian lahan untuk budidaya rumput laut. Dari 4.839,36 ha kawasan pesisir yang dikaji di Teluk Talengen (Kecamatan Tabukan Tengah), Teluk Manalu (Kecamatan Tabukan Selatan), dan Teluk Dagho dan sekitarnya (Kecamatan Tamako dan Manganitu Selatan) dijumpai kawasan pesisir seluas 181,80 ha yang tergolong sangat sesuai; 852,82 ha yang tergolong cukup sesuai; 3.633,75 ha yang tergolong kurang sesuai; dan 179,99 ha yang tergolong tidak sesuai untuk budidaya rumput laut metoda tali panjang.  Budidaya rumput laut metoda tali panjang di Kabupaten Kepulauan Sangihe dapat dilakukan di Teluk Talengen, Teluk Manalu, dan Teluk Dagho dan sekitarnya  dengan pengembangan kawasan maksimal masing-masing seluas 324; 559; dan 1.171 ha yang dapat digunakan untuk masing-masing 1.296, 2.236, dan 4.684 unit rakit budidaya rumput laut berukuran 50 x 50 m.  Sangihe Archipelago Regency with its three outlying islands has the potential for seaweed farming development (Kappaphycus alvarezii), regrettably reliable water quality data are scarcely available in this region. The study was aimed to determine the characteristics, suitability, and carrying capacity of waters for seaweed farming in the coastal areas of Sangihe Archipelago Regency. The observed environmental quality of coastal waters included physical environment and water quality. A weighted linear combination  in a GIS environment method was applied to determine the suitability of waters and the capacity of coastal water to accommodate the maximum surface area of the farm was used to determine the carrying capacity of waters. The results of the study indicated that the characteristics of waters in Sangihe Archipelago Regency provide suitable environment for seaweed culture, however the relatively shallow waters and the existence of the shipping lanes in the study region can become major limiting factors for seaweed culture and development. Of 4,839.36 hectares of the coastal areas studied in Talengen Bay (Tabukan Tengah Subdistrict), Manalu Bay (South Tabukan Subdistrict), and Dagho Bay and surrounding areas (Tamako and Manganitu Selatan Subdistricts), a total of 181.80 ha were classified as very suitable; 852.82 ha were moderately suitable; 3,633.75 ha were less suitable; and 179.99 ha were not suitable for seaweed long-line culture method. Further analysis showed that seaweed culture of long-line method can be effectively practiced in Talengen Bay, Manalu Bay, and Dagho Bay and surrounding areas with the maximum development areas of 324, 559, and 1,171 ha respectively of which can be used for allocating 1,296, 2,236, and 4,684 culture raft units respectively, with the size of 50 x 50 m per unit.


2018 ◽  
Vol 31 ◽  
pp. 08026
Author(s):  
Bambang Sujono ◽  
Sutrisno Anggoro

Jatibarang reservoir serves as water supply in dry season and controlling flood in Semarang City. This reservoir is stem Kreo River which cathment areas of 54 km2, pool of area 110 ha and volume is 20 billion m3. This reservoir is potential to develop as natural fisheries area. The goals of this research were to explore existing condition of physical, biological as well as chemical parameter; carrying capacity assessment for natural fisheries; determining appropriate fish species to be developed in Jatibarang reservoir. This research was done in descriptive explorative scheme. Field survey and laboratory analyses were conducted to identify physical, chemical and biological parameters of the water. Physical parameters measured were temperature and water brightness. Chemical parameters measured were pH, DO, phosphate, Ammonia, nitrites and nitrate, while biological parameter measured were chlorophyll-a concentration. Carrying capacity analyses was done referred to the Government Regulation Number 82, 2001 that regulate the management of water quality and water pollution control. Based on the research, it showed that the existing condition of physical, chemical and biological parameters were still good to be used for natural fisheries. Based on TSI index, it classified as eutrofic water. Furthermore, tilapia fish (Oreochromis mossambicus), nile tilapia (Oreochromis niloticus) tawes (Barbonymus gonionotus) and carper fish (Cyprinus carpio) were considered as best species for natural fisheries in Jatibarang Reservoir.


2015 ◽  
Vol 159 (4) ◽  
pp. 494-497 ◽  
Author(s):  
A. A. Popov ◽  
N. S. Sergeeva ◽  
T. A. Britaev ◽  
V. S. Komlev ◽  
I. K. Sviridova ◽  
...  

2019 ◽  
Vol 7 (2) ◽  
pp. 134
Author(s):  
Agung Riswandi ◽  
Muhammad Mahmudi ◽  
Andi Kurniawan ◽  
Lutfi Nimatus Salamah

<p>Biomonitoring is the use of organisms to monitor and assess/detect the condition of an environment. Ngimboh Coast is a coastal line in Ujungpangkah Subdistrict, East Java (Indonesia) which functions as a vessel berth, TPI, and shipyard industry which has the potential to dispose of waste containing Pb<sup>2+</sup> and Cr<sup>6+</sup> which affect the physical condition of chemicals and organisms in these waters. This study aims to determine the Biofilm can be a biomonitoring agent in heavy metals Pb<sup>2+</sup> and Cr<sup>6+</sup> and to know the physical chemical conditions in the Ngimboh coast, Ujungpangkah District, Gresik. This study uses a survey method. Biofilm, sediment and water sampling was carried out at 3 sampling points, namely the first sampling point area close to the disposal of shipyard industrial waste, the second sampling point was an empty land area, and sampling point three was the estuary area. The parameters were measured such as physical properties (temperature, current speed, water depth), chemical properties (pH, DO, salinity), metal content of Pb<sup>2+</sup> and Cr<sup>6+</sup> on biofilms, sediments and water.</p>


Author(s):  
Tejashri V. Patil

Abstract: Groundwater is one of the earth’s most widely distributed and most important natural resources. Groundwater exists, wherever water penetrates beneath the surface. The rocks beneath the surface are permeable enough to transmit water, and at places, the rate of infiltration is so sufficient that the rocks are saturated to an appreciable thickness. This water may be fresh or brackish in quality. As the fresh water constitutes very little quantity of the total water available, we must think as to how best we can exploit it, and utilize it. With the growth of population, today in many of the places water has become a critical source. In many places it is dwindling both in quality and quantity, creating problems for the communities involved. Water Quality Index indicates the quality of drinking water by assessing physical, chemical and biological parameters of water. India had the most studies, with 177 articles, followed by China, Brazil and the United States. This four countries together published 57% of studies on WQI. Groundwater quality implies the level of concentration of different constituents of water which is ultimately described if it is suitable or not for drinking or other purpose such as irrigation. There are mainly three types of constituents or parameters for describing quality of groundwater as physiological, chemical and biological parameters. These parameters are described below: EC ,TDS, K, Na, Ca ,Mg ,TH, Co3, HCO3, Cl, SO4 ,and also we determine some trace element such as Copper (Cu) ,Lead (Pb), Manganese (Mn) ,Nickel (Ni) ,Iron (Fe), Zinc (Zn). Keywords: Gokul Shirgaon , Hydrogeochemical , GroundWater


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