scholarly journals DAYA DUKUNG DAN PEMANFAATAN PERAIRAN DANAU TELUK KOTA JAMBI UNTUK BUDIDAYA IKAN DI KARAMBA JARING APUNG (KJA) BERBASIS MASYARAKAT - Carrying Capacity and Utilization of Teluk Lake, Jambi City for Community-based Fish Culture on Floating Net Cage

2014 ◽  
Vol 4 (1) ◽  
Author(s):  
Janu Dwi Kristianto ◽  
Sunardi Sunardi ◽  
Johan Iskandar
Keyword(s):  
Carrying Capacity ◽  
Quantitative Methods ◽  
Fish Farming ◽  
Local Communities ◽  
Fish Culture ◽  
Control Fish ◽  
Fish Production ◽  
Community Based ◽  
Net Cage ◽  
Total P

AbstrakDanau merupakan salah satu bentuk ekosistem yang menempati daerah yang relatif kecil pada permukaan bumi dibandingkan dengan habitat laut dan daratan. Bagi manusia kepentingannya jauh lebih berarti dibandingkan dengan luas daerahnya. Sejak tahun 1985 Danau Teluk di Kota Jambi mulai digunakan sebagai lokasi budidaya ikan dengan karamba jaring apung (KJA) dengan jumlah KJA yang beroperasi pada tahun 2012 mencapai + 878 unit dari 64 pembudidaya ikan dan akan meningkat terkait penetapan Propinsi Jambi sebagai salah satu kawasan minapolitan perikanan budidaya guna peningkatan produksi perikanan. Pemanfaatan Danau Teluk sebagai media untuk budidaya ikan di KJA diperlukan upaya untuk mendorong pengelolaan terhadap sumberdaya milik umum ini agar terus bekelanjutan. Kajian mengenai dukung perairan dan pemanfaatan daya Danau Teluk Kota Jambi untuk budidaya ikan sistem KJA bertujuan untuk mengetahui daya dukung Danau Teluk yang digunakan untuk kegiatan budidaya ikan di KJA, bagaimana deskripsi pemanfaatan danau untuk budidaya ikan di KJAyang selama ini dilaksanakan oleh masyarakat sekitar dan merumuskan pola pemanfaatan Danau Teluk untuk budidaya ikan di KJA yang berbasis masyarakat secara berkelanjutan. Hasil penelitian menunjukkan  bahwa  daya dukung perairan Danau Teluk Kota Jambi untuk budidaya ikan di KJA adalah sebesar 517,617 ton ikan  per tahun dengan estimasi jumlah pakan di KJA yang diberikan pada ikan sebanyak 931,710 ton pakan ikan per tahun dengan asumsi kadar total P yang masuk ke perairan danau melalui limbah ikan sebanyak 20 kg P/ ton ikan. Jumlah ideal unit KJA yang seharusnya beroperasi di Danau Teluk berdasarkan penghitungan daya dukung danau sebanyak 862, 695 unit ~ 862 unit. Saat ini jumlah KJA yang beroperasi adalah sebanyak 878 unit sehingga perlu dilakukan pengurangan jumlah sebanyak 16 unit. Pemanfaatan Danau Teluk untuk budidaya ikan oleh masyarakat dilakukan secara sederhana dan jumlah KJA yang terdapat ternyata sudah sedikit melebihi daya dukung perairan jika dilihat dari konsentasi Total P yang ada di perairan. Peningkatan jumlah KJA yang ada di danau perlu mendapat perhatian dari pemerintah dan masyarakat setempat. Pola pemanfaatan danau untuk budidaya ikan berbasis masyarakat yang direkomendasikan adalah dengan mengeluarkan ijin usaha budidaya ikan agar kegiatan budidaya ikan dapat terkendali dan tidak merusak lingkungan, menggunakan pola pemeliharaan ikan dengan jaring ganda sehingga biaya operasional lebih efisien dan produksi ikan dapat ditingkatkan, membuat manajemen pakan dalam penerapan budidaya ikan dalam KJA, meningkatkan SDM pembudidaya ikan dan mengaktifkan kembali kelompok pembudidaya ikan sehingga koordinasi antar pembudidaya, pemerintah dan stakeholder terkait dapat terjalin serta pengaturan tata ruang KJA.Kata Kunci : pemanfaatan danau, daya dukung, Danau Teluk, budidaya ikan KJA, berbasis masyarakatAbstracLake is one of ecosytem form than occupies a relative small area on the surface of the earth as compared to sea and land habitats. For humans, utilization  is more important than the expanse of lands. Since 1985, Teluk Lake began to be used as the location of fish cultivation with floating net cage culture (FNCC). The number of FNCC in 2012 reached ± 878 unit of 64 fish farmers and it will increase related to determination of Jambi Province as one of Minapolitan fishery cultivation in order to increase fish production. Utilization of Teluk Lake as media for fish cultivation on floating cage is necessary to encourage the management of common resources is to be kept sustainable.  Studies on carrying capacity and utilization of Teluk Lake Jambi City for community-based fish cultivation on FNCC aims to know how the use of this lake that have been implemented by the local community and to find out patterns of Teluk Lake utilization to fish culture in floating cage sustainable community-based  and to find out how the carrying capacity Teluk lake that used to fish farming activities in floating cage. Methods used in this study is qualitative and quantitative methods with a descriptive approach. 1Result showed that carrying capacity of Teluk lake for fish farming in FNCC is equal  517,617 tons of  fish per year with estimate amount of feed given to fish in floating cage is as many as  931,710 ton per year assuming total P were entered into the lake through fish waste as much 20 k P/ton of fish. Ideal number of floating cage based on lake  carrying capacity accounting should be 862,695 unit ~ 862 unit. Operating floating cage currently  is  878 unit so that it is necessary reduction in the amount of 16 unit and if they want to add a new one, it should be an improvement or replacement of existing floating cage at lake. Utilization of Teluk Lake for fish farming is done simple by local communities and number of existing floating cage already slightly exceed the carrying capacity of lake if related from existing concentration of total P in water. The increasing amount of floating cages in lake should be attend from goverment and local communities, so it is necessary to manage the use of lake for fish cultivation. Pattern of lake utilization for fish farming  based- community ist recommended to issue a business licence, in order to control fish farming activity, and not damage the environment, using growt out pattern by double nets so that more efficient operating cost and fish production can be increased, making management of feed in fish farming at floating cage, develop capability of human resouces, activate again POKDAKAN so coordination between farmers, goverment and stakeholder can be build and layout arrangement FNCC. Keywords : Lake utilization, carrying capacity,Teluk Lake, fish culture on floating cage,community based

scholarly journals PENDUGAAN DAYA DUKUNG PERAIRAN UNTUK BUDIDAYA IKAN DALAM KERAMBA JARING APUNG DI WADUK PONDOK, NGAWI JAWA TIMUR

2019 ◽  
Vol 10 (3) ◽  
pp. 197
Author(s):  
Siti Nurul Aida ◽  
Agus Djoko Utomo
Keyword(s):  
Carrying Capacity ◽  
Trophic Status ◽  
Fish Culture ◽  
Balance Model ◽  
Mass Balance Model ◽  
Phosphorus Mass Balance ◽  
Net Cage ◽  
Status Index ◽  
Total P ◽  
Multipurpose Reservoir

Waduk Pondok seluas 407 Ha berada di Ngawi Jawa Timur, beroperasi sejak 1995 dan merupakan waduk serbaguna. Kegiatan budidaya ikan dengan keramba jaring apung (KJA) di Waduk tersebut sudah berkembang, hingga mencapai 126 petak pada tahun 2016. Penelitian ini bertujuan untuk menganalisis tingkat kesuburan perairan, total fosfor yang terlepas dari KJA ke peraian dan mengestimasi daya dukung perairan untuk KJA. Tingkat kesuburan perairan dianalisa dengan nilai index status trofik (TSI). Estimasi daya dukung perairan untuk KJA menggunakan pendekatan model keseimbangan total fosfor (P) yang terlepas ke parairan. Hasil penelitian menunjukkan bahwa perairan waduk Pondok sudah termasuk dalam katagori perairan eutrofik dengan nilai TSI 62,1.Total P yang terlepas ke perairan sebesar 15,04 kg ton ikan. Daya dukung perairan untuk KJA adalah 195,2 ton /tahun (130 petak KJA). Jumlah KJA di Waduk Pondok ada 126 petak (189 ton) atau sudah mendekati daya dukung perairan, sehingga jumlahnya tidak dapat ditambah lagi.Pondok Reservoir as large as 407 hectares is located in Ngawi, East Java. The Reservoir was functionally started in 1995, is a multipurpose reservoir. Fish culture in Pondok Reservoir in 2016 reached 126 cages. The aim of this research is to evaluate the trophic status, the total of phosphorus released into the waters from floating net cage, and carrying capacity of the reservoir for fish culture. Trophic status of reservoir was analyzed trough calculating the TSI (Trophic Status Index). A phosphorus mass balance model was used in assessing the carrying capacity of the reservoir. Research hypotesis in this research is Pondok reservoir has reached eutrophic status, and cages number in Pondok reservoir has alreday exceeds carriying capacity. Pondok reservoir have been categorized as eutrophic status, with the value of TSI 62.1. Total P released to the waters is 15.04 kg P / ton of fish. The carrying capacity of Pondok Reservoir for fish culture is 195,2 ton / year (130 cages). The number fish culture in Pondok Reservoir is 126 cages (189 ton), has already approaching maximum number can not be added anymore.

scholarly journals Opportunities and challenges for fish culture in Brazilian reservoirs: a review

2018 ◽  
Vol 30 (0) ◽  
Author(s):  
Evoy Zaniboni-Filho ◽  
Janaína dos Santos Pedron ◽  
Josiane Ribolli
Keyword(s):  
Carrying Capacity ◽  
Fish Farming ◽  
Environmental Data ◽  
Fish Culture ◽  
Food Management ◽  
Production Activity ◽  
Bibliographical Survey ◽  
Negative Impacts ◽  
Cage Fish ◽  
Aquaculture Production

Abstract Aim Aquaculture plays an important role in the world and in Brazil. Artificial construction of water bodies, such as ponds and reservoirs, has allowed for fish culture in cages in those environments, generating conflicts over the use of these public waters. The producers are seeking to increase production, and the ecosystem is susceptible to the impacts caused by production activity. The aim of this review was to identify questions about these conflicts (productivity × environment) and to indicate possible solutions to the main problems related to fish farming in reservoirs. Methods A bibliographical survey was carried out on the main aspects of cage fish farming in Brazilian reservoirs. Studies from 1977 to 2018 (scientific journals, books, and thesis) were revised using seven databases, the CAPES periodicals portal and Google Scholar websites. The main keywords used were “aquaculture”, “reservoir”, “cage”, “eutrophication”, “carrying capacity”, “impacts”, “oligotrophic”, “escapes”, “hybrids”, and “pollution”. Results We accessed approximately 330 and cited 151 documents. Conclusions The negative aspects associated with cage fish farming, as escapes of cultivated fish, and the possible solutions of this and others negative impacts were addressed, identifying mechanisms for reducing conflicts between environmental impacts and aquaculture production. Potential solutions include the use of native fish species or sterile species, implementation of monitoring systems of the surrounding area, adoption of measures to reduce the accidental escape of fish, use of multitrophic culture systems, use of highly digestible diets with appropriate food management, and use of computer programs that incorporate current and historical environmental data to calculate carrying capacity and choose the most appropriate location for production.

scholarly journals Model Ecotourism-Based Tourism Development Strategy and Empowerment of Local Communities in Merauke Regency

2021 ◽  
Vol 3 (1) ◽  
pp. p48
Author(s):  
Alexander Phuk Tjilen ◽  
Samel Watina Ririhena ◽  
Fenty Y Manuhutu
Keyword(s):  
Development Strategy ◽  
Carrying Capacity ◽  
Local Communities ◽  
Strategy Development ◽  
Community Based ◽  
Doing Business ◽  
Strategy Model ◽  
Community Based Learning ◽  
Tourism Community ◽  
And Training

The research objectives are to produce a strategy model for ecotourism development that supports the empowerment of local communities in Merauke Regency.The research method uses Research & Development to create a model of empowerment through community-based learning, by evaluating the implementation of tourism strategies, which are realized in the form of activity guides and training, for the tourism community in Merauke Regency, by involving the Tourism Office, Tourism Business Actors, and traditional community managers tourist village.The results of the study explain the stages of ecotourism development and empowerment strategies including Strategy development of concepts, vision and mission to become guidance in implementation by providing an impact on the emergence of motivation and clarity of types of profitable tourism businesses and expanding access in accordance with their potential.Strategy for capacity building and participation is a lesson for participants in doing business based on groups, understanding how to maintain customers, how to manage a more productive business that results in community participation that supports tourism businesses. Commitment consolidation strengthening strategy embracing all stakeholders and external carrying capacity in the process of empowering and developing eco-tourism, so that the acceleration of the world of tourism is quickly obtained.Strategy for Strengthening Environmental Carrying Capacity is the internal carrying capacity and potential that exists in tourism objects based on the carrying capacity of culture, socio-economics and the carrying capacity of natural resources so that sustainability and natural conservation are achieved.

scholarly journals Mathematical modeling for the management of the carrying capacity of aquaculture enterprises in lakes and reservoirs

2017 ◽  
Vol 52 (9) ◽  
pp. 695-706 ◽  
Author(s):  
Guilherme Wolff Bueno ◽  
Dominique Bureau ◽  
James Owen Skipper-Horton ◽  
Rodrigo Roubach ◽  
Flávia Tavares de Mattos ◽  
...  
Keyword(s):  
Carrying Capacity ◽  
Load Capacity ◽  
Optimal Strategies ◽  
Fish Farming ◽  
Fish Production ◽  
Bioenergetic Model ◽  
Fish Food ◽  
The Sustainable Development ◽  
Lakes And Reservoirs ◽  
Aquaculture Waste

Abstract: Flooded areas of reservoirs and artificial lakes have been increasingly used for fish production; however, the waste generated by aquaculture has become a concern for the sustainable development of this activity. One of the main strategies adopted by management and regulatory agencies is the use of hydrodynamic models that calculate the carrying or nutrient load capacity of a particular water body and the effect of fish farming. These models are precise in the development of optimal strategies for feeding and waste calculation. This review paper addresses this topic and describes the methodology developed for the analysis and simulation of the carrying capacity for fish production, based on the integration of the Fish-PrFEQ nutritional bioenergetic model and the hydrodynamic model of Dillon & Rigler. This methodology allows evaluating the real contribution of aquaculture waste and assists in the planning and management of aquaculture in these aquatic environments, besides enabling and encouraging producers and the aquaculture industry to use fish food with better nutritional quality and lower environmental impact.

scholarly journals EVALUASI KESESUAIAN PERAIRAN UNTUK BUDIDAYA IKAN DALAM KERAMBA JARING APUNG DI KABUPATEN MALUKU TENGGARA BARAT PROVINSI MALUKU

2018 ◽  
Vol 13 (3) ◽  
pp. 277
Author(s):  
Andi Akhmad Mustafa ◽  
Tarunamulia Tarunamulia ◽  
Hasnawi Hasnawi ◽  
I Nyoman Radiarta
Keyword(s):  
Linear Combination ◽  
Water Depth ◽  
Carrying Capacity ◽  
Coastal Waters ◽  
Ammonia Nitrogen ◽  
Fish Culture ◽  
Limiting Factor ◽  
Weighted Linear Combination ◽  
Tidal Current Velocity ◽  
Net Cage

Kabupaten Maluku Tenggara Barat (MTB) memiliki potensi untuk pengembangan budidaya ikan dalam keramba jaring apung (KJA), tetapi belum tersedia data karakteristik perairannya. Penelitian bertujuan untuk mengkaji kesesuaian dan daya dukung perairan berdasarkan karakteristik perairannya untuk budidaya ikan dalam KJA di kawasan pesisir Kabupaten MTB Provinsi Maluku, Indonesia. Data karakteristik perairan yang dikumpulkan berupa pasang surut, kecepatan dan arah arus, kedalaman, kecerahan, suhu, salinitas, oksigen terlarut, pH, nitrat, nitrit, nitrogen amonia total, fosfat, padatan tersuspensi total, dan bahan organik total air, serta jenis substrat dasar. Kesesuaian perairan ditentukan melalui analisis dengan weighted linear combination dalam sistem informasi geografis (SIG) dan luasan daya dukung perairan untuk budidaya ikan dalam KJA didasarkan pada referensi yang telah ada. Hasil penelitian menunjukkan bahwa secara umum karakteristik perairan Kecamatan Tanimbar Utara, Wuarlabobar, dan Selaru, Kabupaten MTB dapat mendukung kegiatan budidaya ikan dalam KJA, namun kedalaman perairan yang relatif dangkal yang menjadi faktor pembatas dalam kesesuaian perairan untuk kegiatan budidaya ikan dalam KJA. Dari 67.287,84 ha kawasan pesisir yang diteliti di Kabupaten MTB dijumpai yang tergolong sangat sesuai seluas 1.564,43 ha; cukup sesuai seluas 10,687,78 ha; kurang sesuai sesuai 2.103,92 ha; dan tidak sesuai seluas 52.931,71 ha untuk budidaya ikan dalam KJA. Di kawasan pesisir Kecamatan Tanimbar Utara, Wuarlabobar, dan Selaru dapat dilakukan budidaya ikan dalam KJA dengan daya dukung perairan masing-masing seluas 363, 292, dan 570 ha yang dapat digunakan untuk masing-masing 5.445; 4.380; dan 8.550 unit KJA ukuran 8 m x 8 m.Maluku Tenggara Barat District has potential waters for the development of floating net cage mariculture. However, the characteristics and quality of the waters have not been well studied. This study was aimed to assess the suitability and carrying capacity of coastal waters of Maluku Tenggara Barat based on the requirements of net cage mariculture. The measured waters characteristics included tidal, current velocity (speed and direction), water depth, transparency, temperature, salinity, dissolved oxygen, pH, nitrate, nitrite, total ammonia nitrogen, phosphate, total suspended solids, and total organic matter as well as bottom substrate types. The weighted linear combination (WLC) method in geographic information system (GIS) was used to determine the level of waters suitability and carrying capacity to support floating net cage mariculture operation. The WLC criteria used were based on the existing standard environmental criteria. The results showed that the coastal waters of Tanimbar Utara, Wuarlabobar, and Selaru sub-districts were suitable for fish culture in floating net cage. Nevertheless, the relatively shallow water depth in the study area was identified as the primary limiting factor of suitability. Of the total of the coastal areas studied (67,287.84 ha), 1,564.43 ha; 10,687.78 ha; 2,103.92 ha; and 52,931.71 ha were respectively categorized as very suitable, moderately suitable, marginally suitable, and not suitable for fish culture in floating net cage. The carrying capacity of the coastal waters of Tanimbar Utara, Wuarlabobar and Selaru sub-districts were estimated able to support 5,445; 4,380; and 8,550 floating net cage units sized 8 m x 8 m distributed in total farm areas of 363, 292, and 570 ha, respectively.

scholarly journals Community-Based Conservation for the Sustainable Management of Conservation Conflicts: Learning from Practitioners

2021 ◽  
Vol 13 (14) ◽  
pp. 7557
Author(s):  
Juliette Claire Young ◽  
Justine Shanti Alexander ◽  
Ajay Bijoor ◽  
Deepshikha Sharma ◽  
Abhijit Dutta ◽  
...  
Keyword(s):  
Conflict Management ◽  
Case Studies ◽  
Sustainable Management ◽  
Local Communities ◽  
Snow Leopard ◽  
Community Based ◽  
Community Based Conservation ◽  
Strategic Support

We explore the role of community-based conservation (CBC) in the sustainable management of conservation conflicts by examining the experiences of conservation practitioners trying to address conflicts between snow leopard conservation and pastoralism in Asian mountains. Practitioner experiences are examined through the lens of the PARTNERS principles for CBC (Presence, Aptness, Respect, Transparency, Negotiation, Empathy, Responsiveness, and Strategic Support) that represent an inclusive conservation framework for effective and ethical engagement with local communities. Case studies from India, Kyrgyzstan, Mongolia, and Pakistan show that resilient relationships arising from respectful engagement and negotiation with local communities can provide a strong platform for robust conflict management. We highlight the heuristic value of documenting practitioner experiences in on-the-ground conflict management and community-based conservation efforts.

Baraza as method: Adapting a traditional conversational space for data collection and pathways for change

2021 ◽  
pp. 147332502110293
Author(s):  
Laura A. Chubb ◽  
Christa B. Fouché ◽  
Karen Sadeh Kengah
Keyword(s):  
Data Collection ◽  
Research Study ◽  
Community Based Participatory Research ◽  
Ways Of Knowing ◽  
Indigenous Communities ◽  
Local Communities ◽  
Working Relationships ◽  
Community Based ◽  
Cultural Contexts ◽  
Context Specific

The call to decolonise research processes and knowledge produced through them has spawned a powerful shift in working relationships between community researchers and members of local communities. Adaptation of a traditional conversational space in a community-based participatory research study offers a context-specific example of a decolonising method for data collection and as pathways for change. This article reports on learnings encountered while adapting the space and highlights the relevance for other cultural contexts. We present principles to adapt traditional conversational spaces both for collecting data and as a means of working in partnership with indigenous communities to enable different ways of knowing and action.

scholarly journals Influence of net-cage fish farming on zooplankton biomass in the Itá reservoir, SC, Brazil

2012 ◽  
Vol 23 (4) ◽  
pp. 357-367 ◽  
Author(s):  
Bruna Roque Loureiro ◽  
Christina Wyss Castelo Branco ◽  
Evoy Zaniboni Filho
Keyword(s):  
Fish Farming ◽  
Dry Weight ◽  
Control Area ◽  
Zooplankton Biomass ◽  
Total Density ◽  
Total Zooplankton ◽  
Net Cage ◽  
Uruguay River ◽  
Cage Fish ◽  
Total Zooplankton Biomass

OBJECTIVES: This study aimed to verify the influence of net-cage fish farming on zooplankton biomass in the Itá reservoir (Uruguay River, Brazil). METHODS: Samples were collected monthly from October/2009 to May/2010 at the surface and at the bottom in two sampling stations, the net-cage area and in a control area using a Van Dorn bottle and a plankton net (68 µm). RESULTS: The Cladocera and Copepoda biomass was estimated by dry weight using a micro-analytical balance, and the Rotifera biomass by Biovolume. Total zooplankton biomass varied between 6.47 and 131.56 mgDW.m-3 Calanoida copepod presented the highest value of biomass (127.56 mgDW.m-3) and rotifers, despite having an important contribution to total density, showed a maximum biomass of 2.01 mgDW.m-3. Zooplankton biomass at the net-cage area surface was higher when compared with the control area during the months of October to January. However, the zooplankton biomass was similar at the bottom of the two areas throughout the studied period. From February until May, zooplankton biomass decreased in both sampling stations, a fact probably associated with the flushing of the reservoir, followed by an increase in water transparency and a decrease in chlorophyll-a concentration in the following months (February to May). CONCLUSIONS: The influence of fish farming on zooplankton biomass was detected at the surface of the net-cage area only from October to January. From February to May this influence was not found, probably by the influence of the flushing of the reservoir.

scholarly journals Community participation based on social capital to enhance tourist visit at Lake Toba Parapat North Sumatera

2018 ◽  
Vol 52 ◽  
pp. 00015
Author(s):  
Erika Revida ◽  
Sukarman Purba
Keyword(s):  
Social Capital ◽  
Community Participation ◽  
Quantitative Research ◽  
Quantitative Methods ◽  
Data Organization ◽  
Community Based ◽  
Qualitative And Quantitative ◽  
Qualitative And Quantitative Methods ◽  
Analysis Technique ◽  
North Sumatra

The The purpose of this research was to analyze the participation of community based on social capital to enhance tourist visit at Lake Toba Parapat North Sumatera. The study utililized both qualitative and quantitative methods. 80 respondents (head of family) were interviewed at Lake Toba Parapat North Sumatera. Thte analysis technique of data used quantitative research used descriptive statistics, and multiple regression analysis, whereas qualitative research started from the data organization, reduction and interpretation of data and took conclusion on the results of research. The results of the research showed that the hypothesis of research that there was a positive and significant influence between social capital on the community participation to enhance tourist visits in Lake Toba Parapat North Sumatra was accepted. Participation of community based on social capital to enhance tourist visit was in moderat and it can be further improved by social activities including communication, information sharing and education on the importance of community participation based on social capital such as cohesiveness, altruism, networking, coorperation, unselfish feeling, and trust.

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