Knowledge of coastal communities on climate change will help communities to adapt that environmental condition. The purpose of this study is to investigate community knowledge level to climate change in the management of mangrove ecosystems in Kotania Bay.This study used a Guttman scale and descriptive analysis. The results showed the average level of community knowledge on climate change was 26.67%, while the average level of community knowledge on climate change adaptation was found only14.67%. Coastal community need some strategies to increase their knowledge on climate change.
ABSTRAKWaduk Jatibarang merupakan salah satu waduk yang berada di Semarang yang berfungsi sebagai wisata, sumber air bersih dan untuk mencegah banjir dengan menampung air dari sungai Kaligarang dan sungai Kreo. Informasi tentang status trofik waduk ini sangat dibutuhkan untuk pengelolaan waduk Jatibarang di masa mendatang. Adapun tujuan penelitian ini adalah untuk mengetahui status trofik perairanberdasarkan kandungan nitrat (NO3), fosfat (PO4), dan klorofil-a di waduk Jatibarang. Hasil dari penelitian ini diharapkan sebagai acuan pengelolaan waduk Jatibarang. Waktu penelitian dilaksanakan pada tanggal 15 - 29 Maret 2016 dengan pengulangan sebanyak tiga kali dan rentan waktu satu minggu. Penentuan lokasi sampling pada penelitian ini mengacu pada perbedaan area waduk Jatibarang yang selanjutnya dibagi menjadi tiga stasiun pengamatan. Stasiun I sebagai area masukan (inlet), stasiun II di perairan tengah waduk dan stasiun III di area keluaran (Outlet). Setiap stasiun dilakukan pengambilan dua titik sampel berdasarkan kedalaman yaitu permukaan dan 10 meter. Hasil penelitian menunjukan bahwa status trofik waduk Jatibarang berdasarkan kandungan nitrat dan phospat eutrofik dan hipertrofik, sedangkan dilihat dari kandungan klorofil-a termasuk oligotrofik. Kata kunci : Status Trofik; Nitrat; Fosfat, Klorofil-a ; Waduk Jatibarang ABSTRACT Jatibarang reservoir is one of the reservoir located in Semarang which has a function as a Tourism, a source of clean water and to prevent flooding control to collect water from Kaligarang and Kreo river.. Information on the trophic status of the reservoir is very necessary for the future Management of Jatibarang reservoir. The purpose of this study was to determine the trophic status of waters by nitrate (NO3), phosphate (PO4) , and chlorophyll -a in the Jatibarang reservoir . The results of this study will be expected as a reference management of Jatibarang reservoir.The research was carried out on 15 to 29 March 2016, with the replication of three times with span period of one week.Determining the location of sampling in this study refers to the difference in the activity of Jatibarang reservoir area is further divided into three observation stations . Station I input area (inlet) , the second station in the middle of the reservoir waters and III stations in the output area (Outlet). Each station is done taking two sample points based on the depth of that surface and a depth of 10 meters. The results showed that the trophic status of the reservoir Jatibarang based content from nitrate and phosphate eutrophic and hypertrophic, while the views of chlorophyll-a, including oligotrophic. Keywords : Trophic Status; Nitrate; Phosphate; Chlorophyll – a; Jatibarang Reservoir
Mahakam Delta is not only utilized for fishery activities but also for several industrial purposes such as coal and oil mining, shipping and timber. The objective of this paper is to provide information in term of the potency of Mahakam Delta located in East Kalimantan province, Indonesia. The study was conducted in Mahakam Delta, East Kalimantan Province, Indonesia. Participatory rural appraisal is a group of methods to collect information in a participatory fashion from rural communities. The method employed in this research was descriptive analysis describing the environmental potency found in Mahakam Delta. Massive conversion of mangrove forest particularly Nypa (Nypa fruticans) area into pond has driven conflict among related stakeholders on the utilization of natural resource and land which subsequently impacts on the fish and shrimp source regeneration, loss of ecological functions of mangrove forest for feeding, nursery and spawning ground of fish and other organisms. Besides of fisheries, oil and gas activity also exists in Mahakam Delta. Mahakam Delta is regarded as important area due to the largest producer of oil and gas mining. Thus, oil and gas industry is the most reliable sector that contributes to the economic development of Kutai Kartanegara district. As a resource provider, Mahakam Delta ecosystem provides various resources for livelihoods. As a life-support service provider, Mahakam Delta ecosystem provides habitat and ideal environment to support variety of living kinds. As a convenience provider, Mahakam Delta ecosystem provides unique and interesting recreation site. As a protector from natural disaster, Mahakam Delta ecosystem is able to protect human kinds from natural disaster threatening coastal area.
Daerah Aliran Sungai (DAS) Babon merupakan salah satu DAS yang sangat penting bagi kelangsungan ekosistm khususnya wilayah Semarang dan sekitarnya. Plankton merupakan organisme perairan yang keberadaannya dapat menjadi indikator perubahan kualitas biologi perairan sungai. Plankton memegang peran penting dalam mempengaruhi produktivitas primer perairan sungai. Perairan sungai Babon secara nyata telah menerima limbah yang berasal dari kegiatan industri yang berada di sekitar sungai Babon dan limbah yang berasal dari kegiatan rumah tangga (domestik). Keadaan ini diduga menyebabkan menurunnya kualitas lingkungan muara Sungai Babon. Penelitian ini dilakukan untuk mengkaji bagaimana tingkat pencemaran di muara Sungai Babon. Pengamatan dilakukan berdasarkan analisis SI (Saprobik Indeks) dan TSI (Tropik Saprobik Indeks) untuk mengetahui sejauh mana tingkat pencemaran yang terjadi. Materi yang digunakan dalam penelitian ini adalah fitoplankton dan zooplankton yang berada di muara Sungai Babon berikut parameter fisika dan kimia. Kelimpahan fitoplankton di muara Sungai Babon adalah 10.765 – 13.777 ind/L dengan 19 - 24 genera. Kelimpahan zooplankton adalah 218-241 Ind/m3 dengan 9 genera. Berdasarkan kelimpahan plankton maka didapatkan nilai Saprobik Indeks (SI) berkisar 0,07 - 0,34 dan nilai Tropik Saprobik Indeks berkisar (-0,73) – (-0,98) kualitas perairan muara sungai Babon selama penelitian termasuk dalam tingkat α-Mesosaprobik atau dalam kondisi tercemar sedang hingga berat.
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