Indeks Kondisi Kerang Bambu yang Didaratkan Di TPI Tasik Agung, Rembang, Jawa Tengah

2021 ◽  
Vol 10 (2) ◽  
pp. 200-204
Author(s):  
Aulia Dessy Ramadhani ◽  
Sri Redjeki ◽  
Jusup Suprijanto
Keyword(s):  
Economic Value ◽  
Condition Index ◽  
Total Weight ◽  
Size Selectivity ◽  
Weight Relationship ◽  
Central Java ◽  
Lack Of Information ◽  
Length Width ◽  
Increasing Demand ◽  
Index Value

Kerang bambu merupakan  salah  satu  jenis  Moluska  dari  famili  Solenidae  yang mempunyai nilai ekonomis. Potensi sumberdaya hayati kerang bambu ini menarik untuk diteliti lebih dalam mengingat permintaannya yang semakin meningkat. Upaya pengambilan kerang bambu jika tidak diimbangi dengan selektivitas ukuran dan dilakukan penangkapan secara terus-menerus maka dapat mengakibatkan hilangnya organisme ini. Mengingat masih minimnya informasi mengenai kerang bambu (Solen sp.) sehingga perlu dilakukan penelitian mengenai morfometri, hubungan panjang dan berat serta indeks kondisi kerang bambu. Tujuan dari penelitian ini adalah mengetahui hubungan panjang cangkang dan berat total serta nilai indeks kondisi dari kerang bambu (Solen sp.). Penelitian ini dilakukan dengan mengukur aspek morfometri seperti panjang, lebar dan berat total. Hasil penelitian menunjukkan hubungan antara panjang cangkang dan berat total memiliki nilai b = 3,99 dan R2=0.5742. Nilai indeks kondisi kerang bambu (Solen sp.) dari TPI Tasik Agung, Rembang, Jawa Tengah pada kategori kurus sebesar 1.9% dengan jumlah 1 ekor, kategori sedang sebesar 13,3% dengan jumlah 67 ekor dan kategori gemuk sebesar 86.4% dengan jumlah 433 ekor.Bamboo clams are type of mollusc from the Solenidae family that have economic value. The potential of bamboo clam is interesting to be investigated more deeply considering its increasing demand. Efforts to collect bamboo clams of it’s not balanced with size selectivity and continuous fishing can result in the loss of these organisms. Given the lack of information on bamboo clams (Solen sp.) it is necessary to conduct research on morphometry, length and weight relationship and condition index of bamboo clams. The purpose of this study was to determine condition index value of bamboo clams (Solen sp.). This research was conducted by measuring morphometric aspects such as length, width, and total weight. The result showed that the condition index value of bamboo clams (Solen sp.) in TPI Tasik Agung, R, Central Java in the thin category was 1.9% with 1 individuals, the moderate category was 13.3% with 67 individuals and the fat category was 86.4% with 433 individuals.

scholarly journals Perbedaan Metode Mutilasi Terhadap Lama Waktu Molting Scylla serrata

2019 ◽  
Vol 8 (2) ◽  
pp. 103
Author(s):  
Raden Ario ◽  
Ali Djunaedi ◽  
Ibnu Pratikto ◽  
Petrus Subardjo ◽  
Fauzia Farida
Keyword(s):  
Experimental Method ◽  
Economic Value ◽  
Treated Group ◽  
Total Weight ◽  
Scylla Serrata ◽  
Soft Shell ◽  
Increasing Demand ◽  
Mud Crabs

Kepiting bakau (Scylla serrata) memiliki nilai ekonomis tinggi. Kebutuhan kepiting bakau selalu meningkat sehingga perlu diupayakan budidaya kepiting bakau secara intensif. Salah satu perkembangan teknologi dalam budidaya perikanan untuk meningkatkan produksi kepiting bakau adalah produksi kepiting cangkang lunak. Kepiting cangkang lunak merupakan kepiting fase ganti kulit (molting) yang mempunyai keunggulan cangkangnya lunak sehingga dapat dikonsumsi secara utuh. Untuk mempercepat kepiting molting diperlukan berbagai rangsangan yang salah satunya adalah menggunakan metode mutilasi. Tujuan penelitian untuk mengetahui perbedaan lama waktu molting dan pertumbuhan berat kepiting bakau dengan menggunakan metode mutilasi pada kaki jalan dan capit. Metode penelitian yang digunakan yaitu metode eksperimental dengan rancangan acak lengkap (RAL) yang terdiri dari empat perlakuan, yaitu mutilasi kaki jalan dan capit, semua kaki jalan, capit, dan alami. Biota yang digunakan berjumlah 40 ekor dengan 10 kali ulangan tiap perlakuan. Data yang diperoleh berupa lama waktu molting serta pertambahan berat mutlak kepiting bakau yang dianalisis menggunakan uji statistik parametrik. Hasil penelitian menunjukkan metode mutilasi berpengaruh terhadap lama waktu molting dengan waktu molting tercepat pada perlakuan mutilasi kaki jalan dan capit rata-rata 13 hari. Metode mutilasi tidak berpengaruh terhadap pertumbuhan berat mutlak dengan nilai tertinggi pada kepiting perlakuan alami sebesar 53,30 gram. Mud crabs (Scylla serrata) are known to have a high economic value. The increasing demand of mud crabs for consumption rxcequires higher production. Therefore, mud crabs need to be cultivated intensively. One of the methods to improve the values of mud crabs’ aquaculture is by producing soft-shell crabs. Soft-shell crabs are produced during molting phase in which the crab shed it’s exoskeleton in order to grow. In the fisheries industry, the soft-shell crabs are considered to be more valuable as it can be consumed as a whole. Accelerating the production of molting crabs, requires stimulus. One of the methods is mutilation. The aim of this study is to estimate the periods required for molting under different treatments, as well as calculating the increase of total weight of molting crabs.. The method used was an experimental method which contained four treatments. The treatments are mutilation of walking legs and claws, all of walking legs, claws, and no mutilation. The number of crabs used was 40 with 10 replications per treatment. The data obtained in the period of molting and the increase of total weight of the mud crabs were analyzed using ANOVA. The result shows that mutilation affects the period of crab’s molting in which the fastest molting (13 days on average) occurred after mutilation of walking legs and claws. This mutilation method does not influence the increase of total weight and the highest value is showed in non-treated group with the increase of 53,30 grams in weight. 

Relationships between environmental factors and biological parameters of Asian wedge clam, Donax scortum, morphometric analysis, length-weight relationship and condition index: a first report in Asia

2016 ◽  
Vol 97 (8) ◽  
pp. 1617-1633 ◽  
Author(s):  
Yambem Tenjing Singh
Keyword(s):  
Seasonal Fluctuation ◽  
Reproductive Activity ◽  
Condition Index ◽  
Maximum Sustainable Yield ◽  
Total Weight ◽  
Strong Positive Correlation ◽  
Biological Parameters ◽  
Shell Weight ◽  
Positive Correlation ◽  
Meat Weight

Wedge clam, Donax scortum occurrence was studied from February 2009 to January 2010 in Padukere sandy beach, Karnataka (India). The following biological parameters were measured in 2367 individuals of the wedge clam, Donax scortum: length, breadth, width, total weight, shell weight, wet meat weight, dry meat weight and number of clams. The calculated linear equation of length-breadth and length-width relationships were B = 3.5968 + 0.5421L and W = 0.8191 + 0.4345L respectively. The length-total weight, length-wet meat weight, length-dry meat weight and length-shell weight relationships were 0.0001414L3.0224, W = 0.0000037L3.5204, W = 0.0000011L3.4513 and 0.0000852L2.9912 respectively. The values of correlation coefficient for different shell dimensional relationships were very close to unity. It was clear from the study that the most ideal period for clam harvest was April, June and December, especially when condition index was maximum. Length showed a strong correlation with silt and clay. Dry meat weight was negatively correlated with air temperature. Shell weight showed positive correlation with length, breadth, width and dry meat weight, and abiotic parameters, silt and clay. Condition index was positively correlated with electrical conductivity, whereas it was negatively correlated with dissolved oxygen. It showed a strong positive correlation with salinity. Seasonal fluctuation of condition index in D. scortum was probably related to reproductive activity. The harvesting of wedge clam could be carried out considering the maximum sustainable yield without over-exploitation

scholarly journals VALUASI EKONOMI DAN ANALISIS KESESUAIAN WISATA DI PANTAI SIGANDU DESA KLIDANG LOR KABUPATEN BATANG Economic Valuation and Tourism Suitability Analysis in Sigandu Beach, Klidang Lor Village, Batang Regency

2019 ◽  
Vol 8 (3) ◽  
pp. 147-154
Author(s):  
Diah Hanifah ◽  
Anhar Solichin ◽  
Churun Ain
Keyword(s):  
Economic Valuation ◽  
Economic Value ◽  
Travel Cost ◽  
Primary Data ◽  
Travel Cost Method ◽  
Limiting Factor ◽  
Suitability Analysis ◽  
Suitability Index ◽  
Index Value ◽  
Age Range

 ABSTRAK Pantai Sigandu merupakan objek wisata alam yang sangat potensial. Keberadaan Pantai Sigandu mampu membantu perekonomian daerah Kabupaten Batang. Mengingat pentingnya keberadaan objek wisata tersebut maka diperlukan suatu kajian yang mampu mengestimasi besarnya nilai ekonomi dari kegiatan wisata di Pantai Sigandu, serta menganalisa kesesuaian wisata pantai untuk rekreasi agar dapat digunakan dalam pengembangan dan pengelolaan objek wisata tersebut. Penelitian ini dilaksanakan pada bulan Desember 2018 - Januari 2019 dengan bertujuan untuk mengetahui profil dan tipologi wisatawan; menghitung nilai ekonomi pariwisata berdasarkan Travel Cost Method (TCM); dan menganalisa kesesuaian wisata berdasarkan Indeks Kesesuaian Wisata (IKW). Penelitian ini bersifat kuantitatif, dengan metode pengambilan data primer menggunakan teknik wawancara terhadap 100 wisatawan, dengan bantuan kuisioner serta melakukan sampling lapangan untuk analisis kesesuaian wisata. Hasil penelitian menunjukkan bahwa karakteristik wisatawan memiliki kisaran usia 20-40 tahun dengan tingkat pendidikan SMA/SMK. Nilai ekonomi yang diperoleh berdasarkan metode biaya perjalanan atau TCM di Pantai Sigandu yaitu sebesar Rp. 31.038.289.140,00 per tahun dengan biaya rata-rata sebesar Rp. 120.140,00 per individu. Nilai Indeks Kesesuaian Wisata (IKW) Pantai Sigandu termasuk dalam kategori sangat sesuai (S1) yaitu tidak memiliki faktor pembatas dalam suatu penggunaan tertentu secara lestari, atau hanya memiliki pembatas yang kurang berarti dan tidak berpengaruh secara nyata. ABSTRACT Sigandu Beach is a potential natural tourism object. The existence of Sigandu Beach is able to increase the economy of the Batang Regency. The existence of a tourism object is important, so it is needed a study to estimate the tourism economic value of Pantai Sigandu, as well as to analyze the suitability of coastal tourism for recreation so that it can be used in development and management of this tourism object. This study was conducted in December 2018 - January 2019. It aims to find out the profile and typology of tourists; to calculate the economic value of tourism based on Travel Cost Method (TCM); and to analyze tourist suitability based on the Tourism Suitability Index. This study is a quantitative with a primary data method use a interview technique for 100 tourist with the help of questionnaires and do measures of the field for Tourism Suitability Analysis. Results of the study show that characteristics of tourist respondents have an age range of 20-40 years old with high school/ vocational education level. The economic value was obtained based on TCM in the Sigandu Beach, which is Rp. 31,038,289,140.00 per year with an average cost of Rp. 120,140.00 per individual. The Tourism Suitability Index value in the Sigandu Beach is included in the very appropriate category (S1), it does not have a limiting factor in a particular use sustainably, or it only has a less significant limitation and does not have a significant effect.

scholarly journals Distribusi Scylla spp. di perairan estuari Sungai Donan Segara Anakan Bagian Timur, Cilacap

2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Sulistiono Sulistiono ◽  
Nurul Musyariafah Yahya ◽  
Etty Riani
Keyword(s):  
Economic Value ◽  
Scylla Serrata ◽  
Mangrove Forests ◽  
Mud Crab ◽  
Mangrove Species ◽  
Central Java ◽  
Rhizophora Apiculata ◽  
Mangrove Ecosystems ◽  
Avicennia Alba ◽  
Mangrove Crabs

Mangrove forests are ecosystems that make up coastal areas and river estuaries. The examples of mangrove ecosystems found in Indonesia are in Segara Anakan, Central Java. One of the aquatic biota with the economic value found in the mangrove forest ecosystem is the mud crab (Scylla spp.). The purpose of this study was to assess the distribution of mangrove crabs (Scylla spp.) to the presence of mangrove species in the mouth of the Donan River, Segara Anakan. A sampling of crabs and observations of mangrove vegetation were carried out at five stations spread from the river to the sea. The results showed that there were three types of mangrove crabs caught in the vicinity of the study, namely Scylla tranquebarica, S. olivacea, and S. serrata. The types of mangroves found include Rhizophora apiculata, R. mucronata, Avicennia rumphiana, A. alba, A. officinalis, and Nypa. Regression analysis showed that mangrove density correlated with the abundance of Scylla tranquebarica and Scylla olivacea, but contradicts the abundance of Scylla serrate. PCA analysis showed that the Crab species Scylla tranquebarica and Scylla olivacea were associated with mangroves of Avicennia alba, Avicennia rumphiana, and Rhizophora apiculata. Meanwhile, Scylla serrata crabs are associated with Avicennia officinalis.

scholarly journals Community Structure of Dragonfly (Ordo: Odonata) in Natural Forest and Tourist Sites Petungkriyono Forest, Central Java, Indonesia

2021 ◽  
Vol 6 (3) ◽  
pp. 67328
Author(s):  
Nur Apriatun Nafisah ◽  
R.C.Hidayat Soesilohadi
Keyword(s):  
Community Structure ◽  
Tropical Rainforest ◽  
Diversity Index ◽  
Natural Forest ◽  
Natural Forests ◽  
Community Based ◽  
Central Java ◽  
Wiener Diversity Index ◽  
Index Value ◽  
Total Species

Petungkriyono forest is a tropical rainforest with high biodiversity. The increasing tourism activities in Petungkriyono lead to land conversion. Dragonfly (order Odonata) is a good bioindicator for aquatic and terrestrial. This study aimed to compare the community structure of Odonata in natural forests and tourist sites. The method of collecting imago Odonata was done by direct searching, samples were captured using sweep netting. The results showed that the dragonflies found in all locations consisted of the same family, 2 families (Gomphidae and Libellulidae) from the suborder Anisoptera and 6 families (Calopterygidae, Chlorocyphidae, Coenagrionidae, Euphaidae Platycnemididae, and Platystictidae) from the suborder Zygoptera. The total species of dragonflies found in Sokokembang were 15 species with a total of 293 individuals, Tirta Muncar 13 species of 287 individuals, Karanggondang 17 species of 276 individuals, and Curug Lawe 14 species of 242 individuals. The highest relative abundance of individuals was in the natural forest of Sokokembang is Drepanosticta spatulifera (26.28%) and in Karanggondang Vestalis luctuosa (24.64%), while in the tourist forests of Tirta Muncar and Curug Lawe were Euphaea variegata (34.84% and 28.51 %). The structure of the Odonata community is based on the Shannon-Wiener diversity index in the natural forests of Sokokembang (2.18) and Karanggondang (2.21) at the tourist sites of Tirta Muncar (1.84) and Curug Lawe (2.11). The results showed that the structure of the Odonata community based on the level of the diversity index value, evenness index, and dominance index in natural forests and tourist sites in Petungkriyono forest was not significantly different. 

scholarly journals PEMBERDAYAAN MASYARAKAT MELALUI IbM PELATIHAN OLAHAN LIMBAH TAHU DI DESA DRONO NGAWEN KLATEN

2018 ◽  
Vol 21 (11) ◽  
Author(s):  
Nur Azis Rohmansyah ◽  
Fafa Nurdyansyah ◽  
Bertika Kusuma Prastiwi
Keyword(s):  
Solid Waste ◽  
Production Management ◽  
Economic Value ◽  
Waste Utilization ◽  
Community Empowerment ◽  
Production Waste ◽  
Technology Program ◽  
Central Java ◽  
New Business ◽  
Financial Administration

<p>This community empowerment activity through science and<br />technology program for the community aims to increase the knowledge of<br />the community at Drono village, Ngawen Klaten regency of Central Java.,<br />especially the women in processing and utilizing solid waste in making<br />nuggets, tempeh, and milk which is economically valuable and<br />encouraging people to create new business to increase the income of<br />surrounding communities. The methods used are socialization and<br />counseling, waste utilization training, production management and<br />financial administration, program discussions and evaluation. The<br />activity was held at the residence of one of Drono Ngawen villagers with<br />25 women. During the activity all participants were very enthusiastic, all<br />participants were also given material about the utilization of tofu<br />production waste to be processed into economic value products. Each<br />participant is equipped with guidance about management of online<br />marketing and finance, also coaching about establishment new efforts to<br />improve skills and knowledge.<br />Keywords: tofu waste, training, management, bussiness, IbM</p>

scholarly journals Study the effect of low pH on Ruditapes decussatus (Mollusca: Bivalvia)

2021 ◽  
Author(s):  
Anam Tsear
Keyword(s):  
Economic Value ◽  
Ammonia Excretion ◽  
Condition Index ◽  
Sandy Beaches ◽  
Ruditapes Decussatus ◽  
Average Value ◽  
Mediterranean Lagoons ◽  
Small Decline ◽  
Algal Feed ◽  
Response Testing

The grooved carpet shell clam (Ruditapes decussatus) is one of the most economically essential mollusks in Mediterranean lagoons and sandy beaches, with fisheries and aquaculture both contributing to its abundance. The goal of this research is to see how varying amounts of acidity affect this calcifying organism. 420 ppm (ambient control), 550 ppm, 750 ppm, and 1050 ppm were used to incubate juvenile clams in CO2  enriched saltwater. With increasing pCO2 , the biological parameters evaluated revealed a small decline. Differences, however, were not substantial. In terms of overall weight, the reduction was greatest at 550 and 1050 ppm. Furthermore, clams kept at 550 parts per million had the lowest condition index and the greatest mortality rate of 8%. Both the 550 ppm and the control 420 ppm groups demonstrated an increase in metabolic rate and ammonia excretion in the physiological response testing. With increasing acidification, the algal feed clearance rate declined, with the highest average value in the control (420 ppm) group and the lowest average value in the extremely high pCO2 (1050 ppm) group. Ocean acidification may put further strain on R. decussatus' health and economic value by the end of the century

scholarly journals Sustainability status analysis of shrimp production management at Cilacap Regency, Central Java, Indonesia

2021 ◽  
Vol 322 ◽  
pp. 05015
Author(s):  
Untung Adi Nugroho ◽  
Titin Siswantining ◽  
Sugeng Budiharsono
Keyword(s):  
Low Income ◽  
Production Management ◽  
Social Economic ◽  
Economic Value ◽  
Economic Dimension ◽  
Central Java ◽  
Rapid Appraisal ◽  
Shrimp Production ◽  
Status Analysis ◽  
De Man

Shrimp is one of the main export commodities of the Indonesian fishery, which is produced from various regions. One of the areas that become the center of shrimp production is Cilacap Regency. The main type of shrimp commodity in Cilacap is banana shrimp (Fenneropenaeus merguensis de Man) which has high economic value. The production of banana shrimp in Cilacap is declining. This study aimed to analyze the sustainability status of banana shrimp management in Cilacap waters in a multidimensional base (Multidimensional Scaling/MDS) which is seen through the ecological, social, economic, ethical, technological, and institutional dimensions. The tool used to analyze the sustainability status is the Rapid Appraisal for Fisheries (Rapfish). This research shows that the sustainability value of banana shrimp management reaches 49.68 or is in the Less Sustainable status. Referring to the sustainability analysis results on each dimension, it can be seen that the economic dimension is the dimension with the lowest sustainability status. This is due to the low income of the fishermen on the results of the shrimp catch. From the sustainability status of shrimp management, it is necessary to take strategic steps to improve the sustainability status of shrimp management in Cilacap Regency.

scholarly journals Socialization of the Benefits of Fermenting Cattle Milk into Yogurt as a Probiotic Food Product for Housewife Community of Sruni Village, Musuk, Boyolali

2019 ◽  
Vol 4 (4) ◽  
pp. 581-588
Author(s):  
Sri Sinto Dewi ◽  
Stalis Norma Ethica ◽  
Wikanastri Hersoelistyorini
Keyword(s):  
Swot Analysis ◽  
Economic Value ◽  
Food Product ◽  
Community Empowerment ◽  
Cow Milk ◽  
Cash Assistance ◽  
Fresh Milk ◽  
Central Java ◽  
The Government ◽  
Probiotic Food

Boyolali Regency is among districts in Indonesia, which still has poverty issues and receives direct cash assistance from the government. Yet, villages of the regency including Sruni at Musuk sub-district has been known as one of the main producers of fresh cow milk for the Central Java region.There has been no attempt to process fresh milk into food products of higher economic value at Sruni Village. Meanwhile, results of the strengths, weaknesses, opportunities, and threats (SWOT) analysis at Musuk showed that the region has the potential to be developed for dairy industry. Therefore, through socialization program, community empowerment should be initiated by socializing benefits of fermenting cattle milk into yogurt as a probiotic food product. The socialization had been carried out for 12 housewives in the village of Sruni through two small-class seminars in April 2019. Evaluation was conducted by comparing the number of correct answers from participants’ answers recorded on questionnaire given prior and after each of both seminars. Percentage of improved answers were presented in histograms and then analyzed. As results, the first seminar produced in average 47.4% improved answers, while the second seminar could generate in average 27.3% improved answers. The results showed that in general, the conducted socialization program was quite successful in improving understanding of Sruni villagers on the benefits of fermenting cattle milk into yogurt as a probiotic food product.

Inter-basin water transfer

2021 ◽  
pp. 15-32
Author(s):  
Shima Kheirinejad ◽  
Omid Bozorg-Haddad ◽  
David Quanrud
Keyword(s):  
Water Resource Management ◽  
Economic Value ◽  
Water Transfer ◽  
Management Tool ◽  
Social Challenges ◽  
Basin Water ◽  
Increasing Demand ◽  
Water Transmission ◽  
Water Scarce ◽  
The Cost

Abstract Providing water to satisfy human demands is one of the greatest challenges of the present century and has been the source of many changes in the world. Since the amount of renewable water the Earth receives is only equal to, or even less than, that received many years ago, renewable water per capita decreases as human population increases. Inter-basin water transfer is a method to augment supply in water-scarce regions. Increasing demand for water in some areas sometimes justifies the transfer of water from one basin to another. Water consumption in densely populated cities and in large industrial and agricultural operations produces an economic value that justifies the cost of expensive water transport equipment and infrastructure such as transmission channels, pipelines, pumping stations and dams. Under these conditions, water that is not in high demand in one basin is transferred to another basin for use. These projects are supply-driven engineering solutions to major social challenges. Inter-basin water transmission is carried out across local, regional, national, and international boundaries to overcome water scarcity, to meet demand in the agricultural, industrial and domestic sectors as well as to achieve economic and social development. Inter-basin transfer (IBT) is an important water resource management tool that can have significant impacts on the donor and recipient basins. This chapter aims to provide insights into the concepts, logics, methods and tools used to evaluate inter-basin transfer projects. Challenges that may arise with implementation of such projects and management methods to overcome these challenges are reviewed. Several case study examples of existing projects are presented to provide insight into how to better manage such projects in the future.

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