Keberlanjutan Kegiatan Perikanan Darat Nelayan Skala Kecil Selama Masa Pandemi Covid-19 dan Mendatang (Studi Kasus di Danau Semayang, Kalimantan Timur)

Muthmainnah D, Fatah K. 2021. Sustainability of small-scale fisher of inland fishery during the Covid-19 pandemic and in the future (Case Study in Semayang Lake, East Kalimantan). In: Herlinda S et al. (Eds.), Prosiding Seminar Nasional Lahan Suboptimal ke-9 Tahun 2021, Palembang 20 Oktober 2021. pp. 114-124.  Palembang: Penerbit & Percetakan Universitas Sriwijaya (UNSRI).Inland capture fisheries are characterized by small-scale fisher. Semayang Lake is utilized by fisher, located in Kutai Kartanegara Regency, East Kalimantan. This paper aims to find out the perspective of small-scale fisher regarding the utilization of Semayang  Lake during the Covid-19 pandemic and the desired management strategy. Data were collected by interviewing used the questionnaires with closed and open answered to 100 fishers. Respondents are encouraged to express their opinion. The data is presented in graphs and descriptions, and then it is analyzed qualitatively. The results show that all respondents continue to carry out capture fisheries and aquaculture activities during the Covid-19 pandemic. Fishers understand the need to maintain fisheries sustainability. The Covid-19 pandemic has had an impact on declining incomes. The strategy to increase revenue is the need for training on improving the selling value of fish. The role of local governments and fishery extension workers is needed widely to assist the wise use of aquatic resources

Hubungan panjang berat dan faktor kondisi ikan gabus (Channa striata Bloch, 1793) yang dibesarkan di rawa lebak, Provinsi Sumatera Selatan

Abstract. The objective of the present study was to evaluate length-weight relationship and condition factor of snakehead (Channa striata) reared in different swamp pond in Sekayu and Mariana swamps of Banyuasin Regency, South Sumatra Province. The study was conducted from May to November 2013. The result shows that there were no significant difference in the slope (b) between length-weight relationship of fish reared in Sekayu  and Mariana swamp ponds, the fish was displayed a negative allometric growth pattern. Fish reared in Mariana swamp had condition factor 0.884 slightly higher than that in Sekayu swamp 0.839, it can be indicated that swamp environment in Mariana slightly better to support snakehead life. Keywords: Length-Weight Relationship; Ccondition factor; Channa striata; grow-out; Swamp Abstrak. Penelitian ini bertujuan untuk mengetahui hubungan panjang berat dan faktor kondisi ikan gabus (Channa striata) telah dipelihara di rawa lebak Sekayu Kabupaten Musi Banyuasin dan Mariana Kabupaten Banyuasin Provinsi Sumatera Selatan pada Mei hingga November 2013. Hasil penelitian menunjukkan hubungan panjang berat tidak menunjukkan perbedaan nyata antara rawa Sekayu dan Mariana dengan nilai b di bawah nilai 3 yang berarti  pertumbuhan ikan gabus tersebut allometrik negatif. Ikan gabus yang dipelihara di rawa lebak Mariana menghasilkan faktor kondisi 0,884 lebih tinggi daripada di rawa lebak Sekayu 0,839, yang menunjukkan bahwa kondisi lingkungan rawa lebak Mariana lebih mendukung untuk pertumbuhan ikan gabus.Kata kunci: Hubungan panjang berat; Kondisi factor; Channa striata; Pembesaran; Rawa leba

Determination of potential fisheries areas based on trophic status (Case study in Situ Gede, Tasikmalaya)

Situ Gede is one of the artificial lakes/reservoirs in Tasikmalaya, West Java. The lake has functioned as a source of household water needs, fisheries, and tourism. According to determine the development of water management requires information on the trophic status and water quality. This study aimed to obtain information on the trophic status and water quality of Situ Gede. The research was conducted in Situ Gede, Tasikmalaya, West Java, in 2018. Measurement and analysis of water quality parameters used the SNI and APHA methods, while the measurement of trophic status used the Carlson Trophic State Index (TSI). The relationship between water quality parameters and TSI scores was analyzed using Statistica version 8. Based on the analysis, the trophic status of Situ Gede ranged from 69.06-79.04, with an average of 74.61. This value indicated that Situ Gede's trophic status was on a eutrophic level. The physical and chemical parameters that affect the trophic status of Situ Gede are TP, pH, conductivity, TDS, and temperature. The TP values, conductivity, pH, and temperature at Situ Gede were still categorized as normal. The trophic of Situ Gede can be a source of fish growth. Moreover, in general, Situ Gede waters still have sufficient water quality for fish life. Therefore, Situ Gede has the potential to capture fisheries, recreational fisheries, and aquaculture.Keywords:Trophic statusSitu GedeFisheryChlorophyll-aFish Reserv

Developing Habitat Conservation Suitable For Nam Xouang Reservoir, Vientiane Province, Lao PDR

The establishment of the conservation area considers the most important issues of the environment changing in inland waters of ASEAN Countries. To respond this issue, a study was conducted in Nam Xouang Reservoir, Lao PDR, in 2018. To determine the conservation area, data and information were collected by mapping the deep waters area of spawning grounds, feeding ground, fishing seasons, and fish species caught. The data was collected with the support of six enumerators in upper-side and downside of the reservoir to identify the fish species and fish length-weight data. Results showed that built the display boards and warning signs is an effective way of considering simultaneously, to inform the local villagers about the fishing regulations and fish conservation zones. The participation of local fishing communities and local authorities might be necessary for the successful and sustainable management of the fisheries in the Nam Xouang Reservoir

BIOLOGICAL CHARACTERS OF SNAKEHEAD GUDGEON (Giuris margaritacea Valenciennes, 1837) IN TONDANO LAKE, MINAHASA, NORTH SULAWESI, INDONESIA

Snakehead gudgeon (Giuris margaritacea) or Payangka in Indonesian’s local name, has a high population and been used as a consumption fish mainly by people around Lake Tondano, not only the consumption size, but also the juvenile (it called Nike) are preferred. The fish resources are the essential source and need to keep their sustainable in the future. The research was carried out in 2015. The study was aimed to identify and record some aspects of snakehead gudgeon fish biology in Lake Tondano Mi-nahasa Regency of North Sulawesi. Fish samples were obtained from fisher's catch. The morphometric and meristic character was measured, and also was performed surgery to observe reproduction and food. The results showed that the growth pattern of Giuris margaritacea was positive allometric with sex ratio 1: 1.41. The fish was spawning whole year with fecundity between 36,892-90,102 eggs, and diameter of the egg was 0.285 mm on average. The size of the first mature female was 10.75 cm gonads. Snakehead gudgeon was a carnivorous fish with shrimp as the primary food, and the relative length of the digestive tract was 82.88%

Dinamika pertumbuhan sepat siam (Trichopodus pectoralis, Regan 1910) di Perairan Rawa Banjiran Patra Tani Sumatra Selatan

The exploitation of Sepat siam (Trichopodus pectoralis, Regan 1910) that include native species of floodplain has been done on many years. One of the main fishing areas of this commodity is Patratani floodplain, Muara Enim Regency, South Sumatra. This commodity has been exploited over a long period and is expected to have a high pressure of fishing. The aim of this paper is to compare the utilization of sepat siam resources based on growth, mortality, and exploitation parameters between 2010 and 2017. Fish samples were collected monthly started from March to December in 2010, and April to December in 2017. The sample got from local fishers who fished around Patratani flood-plain waters. Sepat siam samples were measured on length (cm) and weight (gram) every month. The analysis has concluded based on the condition factor in both years. The growth parameters were analyzed by FiSATII software. The result of FiSAT II analysis drawn the growth factor was 0.86 in 2010, and have been growing slow to be 0.55 in 2017. The length infinitive in 2010 was around 21.5 cm and decreased to 18.3 in 2017. The other results showed that the exploitation level decreased from 0.61 in 2010 to 0.53 in 2017. The exploitation rate proved that the utilization of sepat siam was decreased but sill on overfishing conditions. The length size of sepat siam related to the optimum mesh size fishing gears was decreasing in 2017 compared to 2010. The age analysis shows for 21.5 cm of the infinitive length is achieved for 7 months in 2010, while 18.3 cm of that is reached for 10,5 months in 2017.Keywords:Exploitation levelFloodplainSepat siamABSTRAKKegiatan penangkapan Sepat siam (Trichopodus pectoralis, Regan 1910) yang merupakan spesies asli ikan rawa banjiran sudah dilakukan bertahun-tahun. Salah satu lokasi penangkapan komoditas ini adalah di rawa banjiran Patratani, Kabupaten Muara Enim, Provinsi Sumatra Selatan.Komoditas ini telah mengalami eksploitasi dalam jangka waktu yang lama dan diperkirakan mengalami tekanan penangkapan yang besar.Tulisan ini bertujuan untuk menampilkan eksploitasi atau pemanfaatan ikan sepat siam berdasarkan parameter pertumbuhan, mortalitas, dan eksploitasi pada tahun 2010 dan 2017. Sampel ikan dikumpulkan setiap bulan yaitu dimulai Maret hingga Desember 2010.Kegiatan pengumpulan sampel dilanjutkan pada April hingga Desember 2017.Sampel ikan diperoleh dari tangkapan nelayan lokal yang memancing di sekitar perairan rawa banjiran Patratani.Sampel ikan diukur panjang (cm) dan berat (gram).Parameter pertumbuhan dianalisis menggunakan perangkat lunak FiSAT II. Hasil analisis FiSAT II menggambarkan faktor pertumbuhan sepat siam pada 2010 sebesar 0,86, dan tumbuh melambat menjadi 0,55 pada 2017. Panjang infinitif sepat siam pada 2010 sekitar 21,5 cm dan turun menjadi 18,3 pada 2017. Analisis tingkat eksploitasi menunjukkan hasil menurun dari 0,61 pada 2010 dan 0,53 pada 2017, namun masih dalam kondisi penangkapan ikan menunjukkan tangkapan berlebih. Hubungan antara ukuran panjang sepat siam dengan ukuran optimal alat tangkap menunjukkan hasil menurun pada 2017. Analisis usia menunjukkan bahwa panjang infinitif 21,5 cm dicapai selama 7 bulan pada 2010, sementara perlu waktu 10,5 bulan pada 2017 untuk mencapai panjang infinitif 18,3 cm.Katakunci:Tingkat eksploitasiRawa BanjiranSepat sia

The Trophic Status and Fish Potential Yield of Ayamaru Lake in West Papua, Indonesia

Ayamaru lake is a shallow lake located in the Maybrat district, West Papua which has a significant role in supporting the water supply, transportation, tourism, fisheries, and transit area for the migratory bird. The data and information of the trophic status and the fish potential yield in this lake should be understood before making any decisions for effective resource management to enhance fish production. The study was conducted in March and July 2019 in five sampling sites of Ayamaru lake, West Papua. Three water quality parameters were sampled for this study namely transparency, chlorophyll-a, and total phosphate. Moreover, these three parameters were used to calculate the Trophic State Index (TSI) and Fish Potential Yield. The result showed that based on the TSI value, the Ayamaru lake was categorized as a mesotrophic lake supported by its clear water. This waterbody has a fish potential yield of 56.33 kg/ha/year or 55.2 ton/year

PENGELOLAAN IKAN HAMPAL (Hampala macrolepidota Kuhl & Van Hasselt 1823) DI DANAU RANAU, SUMATERA SELATAN DAN LAMPUNG

Pemanfaatan dan pengelolaan perikanan harus memperhatikan aspek konservasi agar sumberdaya hayati yang ada didalamnya seperti ikan dapat tetap lestari. Danau Ranau merupakan salah satu sumberdaya alam yang potensial menghasilkan ikan yang telah lama dimanfaatkan masyarakat nelayan setempat sebagai sumber kehidupan. Ikan hampal (Hampala macrolepidota, Kuhl & Van Hasselt 1823) mempunyai peran atau fungsi ekonomis dan ekologis di perairan Danau Ranau. Penelitian dilakukan pada tahun 2013 di perairan Danau Ranau Kabupaten Ogan Komering Ulu Selatan Provinsi Sumatera Selatan dan Kabupaten Lampung Barat Provinsi Lampung. Tujuan penelitian untuk mendapatkan konsep pengelolaan ikan hampal di Danau Ranau. Penelitian mengintegrasikan secara menyeluruh aspek lingkungan perairan, biologi ikan, penangkapan dan dinamika populasi ikan hampal. Pengelolaan ikan hampal di Danau Ranau dapat dilakuan melalui: 1) pengelolaan habitat, 2) pengelolaan populasi dan 3) pengelolaan penangkapan. Pengelolaan ikan hampal di Danau Ranau dapat dilakukan sebelum populasi ikan tersebut menurun sehingga dapat tetap lestari. Merekomendasikan konsep pengelolaan ikan hampal di Danau Ranau kepada Pemerintah Daerah Sumatera Selatan dan Lampung untuk dituangkan dalam Peraturan Daerah.Utilization and water management have to consider the aspect of conservation therefore biological resources such as fish can be preserved. Ranau Lake is one of the potential natural resources to produce fish that has long been used by  local fishing communities as a source of lifehood. Hampal barb (Hampala macrolepidota, Kuhl & Van Hasselt in 1823) has economically and ecologically role or function in Ranau Lake. This study was conducted in  2013 in Ranau Lake, South OKU Regency, South Sumatera Province and West Lampung Regency,Lampung Province. The aim of research was to obtain a concept of management of hampal barb in Ranau Lake. The management of hampal in Ranau Lake could be attempted through the integration study of environmental aspects, fish biology, capture fishery and fish population dynamic data. It can be done prior to the fish population decline in order to maintain their  stable population. Recommending the concept of hampal barb management in Ranau Lake to South Sumatra and Lampung Government for consideration of developing a local government regulation.

Fish Diversity and Water Quality of Ayamaru Lake, West Papua

Ayamaru lake is one of the lakes in West Papua categorized as karst lake. It is endowed with fish diversity in various ornamental fish and consumption fish with high economic value. Recently, a number of floating net cages is set up, and before causing serious damage, management for keeping the sustainability of fish resources, especially the endemic species, needs to be proposed.  This paper would contribute information on fish diversity and the water quality of Ayamaru Lake. The study was conducted in March, July, and November 2019 at Ayamaru Lake, Maybrat Regency, West Papua Province. The data were collected by conducting direct survey, interviewing the fishers, and the related institution, as well as searching the previous studies. Fish and water samples were taken from five stations. The results showed that 15 freshwater fishes were identified. The capture fisheries were practiced using the environment-friendly fishing gears. The water quality was still quite useful to support fish life. To reduce the threat to the presence of endemic fish in the lake, it needs to regulate the release of introduced species by the community, and control the escaped fish from the culture area