Fisheries resources, especially small-scale fisheries in the Depapre Bay, Jayapura Regency, which is quite potential, have not been utilized optimally. However, the damage to supporting ecosystems has begun to occur. The aims of this study were to inventory the target fish resources, study the pattern of the fishing season, and determine the fishing ground area in the Depapre Bay in a participatory manner. The method approach used in this study is a semi-structured study to document and evaluate small-scale fisheries management systems in a participatory manner with several data collection techniques, namely with focus group discussions, in-depth interviews, and recording and documentation. There are around 14 target fish families in the Depapre Bay that have been identified, which are grouped into pelagic fish and demersal fish. The pelagic fish group of the Scrombidae family has a fishing season of around May-November, namely in the east to the west season with the fishing ground outside the bay, while the demersal fish group generally has a fishing season of around May-February or occurs from the beginning to the end of the western season with the fishing ground in the bay and around Tanjung Tanah Merah, which is caused by the physiographical and oceanographical factors of the Depapre Bay. Considering the above conditions, it is necessary to pay attention to stakeholders, especially the local government. In addition to the community empowerment to improve technology, the limited reach of fishermen should also be taken into consideration. Conservation zoning should be based on the fishing ground areas by paying attention to the existing the Tiaitiki local wisdom system.
This study was conducted to determine water quality conditions and the carrying capacity of Holtekamp coastal, to identify the aquaculture activities that contribute waste on coastal and impact of aquaculture waste load. Water and plankton samples were collected from fish ponds (tambak), Kali Buaya channel and sea. Questionnaires were administered to 25 farmers. Results of water quality analyses showed that Holtekamp coastal water is characterized with higher concentration of BOD5 (Biological oxygen demand), N-total, COD (chemical oxygen demand) and TOM (total organic matter) 4.96 mg/l, 4.19 mg/l, 33.53 mg/l, and 22.18 mg/l, turbidity (7.02 NTU) and TSS (total suspended solids) 201.67 mg/l were higher in Kali Buaya chanal and PO4-P (2.08) in fishpond. The carrying capacity of coastal water is 10.452.915 m3 and a maximum of effluents 104.529 m3, respectively.Key Words: Ponds; Effluents; Water quality; Carrying capacity; Holtekamp
A Socio-Ecological Systems (SESs) are systems that connect human systems and natural systems by emphasizing that humans must be seen as part of, and cannot be separated from nature. Understanding SESs is very important as the main capital in planning the management of coastal and marine resources. The purpose of this study was to study SESs in Depapre Bay, Jayapura, Papua Province using the Drivers-Pressure-Impact-State-Responses (DPSIR) approach. Based on the research results, it was found that the issues and problems of SESs in Depapre Bay were related to the utilization of coastal and marine resources that were not environmentally friendly, such as the use of blast fishing and tuba root poisoning and development that did not consider the sustainability of coastal and marine resources. In addition, the response of the government and stakeholders has not focused on overcoming the damage to ecosystems and coastal and marine biological resources in an integrated manner. This can be seen from the programs carried out that are still partial, especially in the prevention of destructive fishing and the rehabilitation of coastal and marine ecosystems that have been damaged.
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