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"ABSTRAKJenis penelitian ini adalah etnografi yang berfokus pada aktivitas pemanfaatan ekosistem danau dan bentuk-bentuk kebijakan pengelolaan yang ditetapkan oleh pemerintah dan kelembagaan adat. Teknik pengumpulan data adalah studi pustaka, observasi partisipasi, dan wawancara mendalam. Lokasi penelitian meliputi empat wilayah kecamatan yang memiliki wilayah danau terluas yakni Kecamatan Tempe, Kecamatan Sabbang Paru, Kecamatan Tanasitolo Dan kecamatan Belawa. Informan adalah masyarakat sekitar danau, tokoh adat, serta kepala dan staf SKPD yang terkait dengan manajemen danau. Penelitian ini menemukan Danau Tempe menjadi sumber daya milik bersama (common property resources) karena dapat dimanfaatkan dan diakses secara bersama oleh semua orang tanpa batasan yang tegas. Bentuk kebijakan pengelolaan danau dirancang dan dibuat oleh pemerintah dan lembaga adat lokal. Bentuk kongkrit kebijakan pengelolaan danau, dijabarkan dalam peraturan daerah serta dalam bentuk system norma, upacara adat dan pamali-pamali, yang pengawasannya dilakukan oleh pembuat kebijakan, serta masyarakat. Secara de yure, Danau tempe dikelola secara kolaborasi (collaborative management ) antara pemerintah dengan lembaga adat, namun secara de facto, fungsi manajemen kolaborasi tidak optimal sehingga Danau Tempe tampak seperti sumber daya yang bisa diakses oleh siapa saja, tanpa aturan ( open access )

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ABSTRACTThis research is a ethnography type that focused to the activity of lake ecosystem and forms of management policies set by governments and traditional institutions. The data collection technique is literature, participant observation and deep interviews. Research Location covers four regions districts that had the largest lake district area of Tempe, District Sabbangparu, district Tanasitolo and district Belawa. Informants are people around the lake, traditional leaders and also the heads and staff SKPD who related to lake management. This study found that the lake Tempe as be a common property resources (common property resources) because it can be shared and utilized by all people without clear limits. Forms of lake management policy is designed and made by local government and traditional institutions. Concrete forms of lake management policy, spelled out in local legislation as well as in the form of system norms, ceremonies and taboos-taboos, the monitoring carried out by policy makers and the public. In de yure, Tempe Lake managed in collaboration between the government and indigenous institutions (collaborative management), but de facto, collaboration management functions are not optimal so Tempe lake looks like resources that can be accessed by anyone, without rules (open access) "

"The eleven chapters cover many aspects of the physics, geochemistry and biology of the lake, with a particular focus on the unique physical and geochemical features of the water column and on the ecological functioning of the surface waters. The impacts of the introduced fish species and the potential impacts of methane exploitation are also summarized. This multi-disciplinary book may also be used as an introduction to the limnology and biogeochemistry of large tropical lakes, as it covers various aspects of the physics, geochemistry, biology and ecology of the African Great Rift lakes.​"

"This book focuses on the long-term interactions between people and nature in and around Lake Biwa, one of the oldest lakes in the world. Accordingly, it not only covers the characteristics of the biota of this ancient lake, but also approaches it as a ‘cultural ancient lake.’ Furthermore, various problems affecting the lake, especially recent environmental changes that occurred before and after Japan’s rapid economic growth of the 1950s and 60s, are reviewed, including water pollution, lakeshore development and the reclamation of attached lakes, alien and invasive species, and problems related to the recent warming of the climate. Lastly, by analyzing data on these problems collected by the local government and residents of the lake basin, the book provides a comprehensive outlook on the future of Lake Biwa and people’s lifestyles. "

"Ikan Bilih (Mystacoleucus padangensis Blkr) adalah jenis ikan endemik yang hidup dominan di Danau Singkarak, Sumatera Barat. Kegiatan penangkapan yang intensif dan tidak ramah lingkungan serta perubahan kualitas perairan danau menyebabkan terjadinya penurunan produsi dan ukuran ikan Bilih setiap tahunnya. Penelitian ini bertujuan untuk menganalisis mutu perairan danau Singkarak, alat tangkap yang ramah lingkungan sesuai dengan ketentuan Code of Conduct for Responsible Fisheries (CCRF) serta pemahaman stakeholders yang terdiri dari nelayan, konsumen, pedagang, dan pengambil kebijakan terhadap sumber daya ikan Bilih. Analisis ini dilakukan secara holistik dalam kerangka konsep Social-Ecological System. Hasil penelitian menunjukkan bahwa nilai BOD, COD, total fosfat, dan TSS di perairan danau berada di atas baku mutu perairan Kelas II yang disyaratkan oleh Peraturan Pemerintah No. 82 Tahun 2001. Selain itu penggunaan alat tangkap yang tidak selektif menyebabkan 57,83% ikan Bilih yang tertangkap berada dalam kondisi belum matang gonad dan 42,19% berada pada kondisi sedang matang gonad. Sesuai dengan sembilan kriteria yang ditetapkan FAO melalui CCRF diketahui bahwa jaring langli dengan mata jaring besar dari ¾ inci sebagai alat tangkap ramah lingkungan. Hasil penelitian juga menunjukkan bahwa sebagian besar stakeholders tidak memahami kondisi ikan Bilih dan sistem pemijahannya. Oleh karena itu perlu dilakukan pengelolaan ikan Bilih secara holistik melalui pengaturan mata jaring yang digunakan nelayan yaitu besar dari ¾ inci dan pembatasan jumlah alat tangkap sesuai dengan kondisi lestari (MSY) serta koordinasi lintas sektor pemerintahan untuk meningkatkan mutu perairan Danau Singkarak. Pengaturan ini akan meningkatkan penerimaan nelayan optimal mencapai Rp 1.375.637.000 dalam jangka panjang.

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Bilih fish (Mystacoleucus padangensis Blkr) is endemic fish species that live dominantly in Lake Singkarak, West Sumatra. The intensive activities and environmentally unfriendly fishing gear and changes in the water quality of the lake cause the declining Bilih fish production and decreased size of Bilih fish per year. This study is aimed at analyzing the quality of Lake Singkarak waters, environmentally friendly fishing gear in accordance with the provisions of the Code of Conduct for Responsible Fisheries (CCRF) and the understanding of stakeholders that consists of fishermen, consumers, merchants, and policy makers on Bilih fish resource.

This analysis is conducted holistically within the framework of the concept of Social-Ecological Systems. The results of research shows that the value of BOD, COD, total phosphate, and TSS in the lake waters is above the water quality standard Class II required by the Government Regulation Number 82 of 2001. In addition, the unselective use of fishing gear causes 57.83% of Bilih fish caught in immature gonads conditions and 42.19% at moderate mature gonad conditions. As per the criteria established by the FAO CCRF, it is known that langli net with size larger than ¾ inch is environmentally friendly fishing gear.

The results of the study also indicate that the majority of stakeholders do not understand the conditions and spawning system of Bilih fish. Therefore, it is necessary to manage Bilih fish in a holistic manner by setting the mesh used by the fishermen namely greater than ¾ inch and limiting the number of fishing gear in accordance with the maximum sustainable yield (MSY) and cross-sector coordination of government to increase the quality of the waters of Lake Singkarak. This setting will increase the optimal fishermen revenues up to IDR 1 .375.637.000 in the long term."

""St Lucia is the world's oldest protected estuary and Africa's largest estuarine system. It is also the centerpiece of South Africa's first UNESCO World Heritage Site, the iSimangaliso Wetland Park, and has been a Ramsar Wetland of International Importance since 1986. Knowledge of its biodiversity, geological origins, hydrology, hydrodynamics and the long history of management is unique in the world. However, the impact of global change has culminated in unprecedented challenges for the conservation and management of the St Lucia system, leading to the recent initiation of a project in support of its rehabilitation and long-term sustainability. This timely volume provides a unique source of information on the functioning and management of the estuary for researchers, students and environmental managers. The insights and experiences described build on over 60 years of study and management at the site and will serve as a valuable model for similar estuaries around the world"--"This book provides a unique source of information on the functioning and management of the estuary for researchers, students and environmental managers"--"