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All Journal Kappa Journal Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal)
Mbaba, Karel Yesaya
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Agriculture, Biological Sciences & Forestry Astronomy Chemistry Education Physics Other

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Fitoremediasi Logam Berat Pb dan Cu Pada Mangrove Rhizophora Apiculata dan Sonneratia Alba di Muara Sungai Badung Denpasar Bali Mbaba, Karel Yesaya
Kappa Journal Vol 8 No 2 (2024): Agustus
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i2.26421

Abstract

Increased activity in the Badung river basin has an impact on water quality, including river estuaries and the sea, which will affect the environmental ecosystem. One of the water and sediment pollutants is heavy metals. Heavy metal pollution can be overcome with phytoremediation. This research aims to analyze the ability of the Rhizophora apiculata and Sonneratia alba mangroves to accumulate the heavy metals Pb and Cu.  Phytoremediation naturally occurs at river estuaries, namely in mangrove plants. Metal absorption in mangroves occurs in the roots which are then carried to the leaves. The research was conducted at the mouth of the Badung River, Denpasar, Bali. The research results show that the Pb metal content in water has exceeded the quality standards for marine tourism and marine biota based on PPRI No. 22 of 2021, namely an average of 0.005 mg/l. Metal absorption occurs in two types of mangroves, namely Rhizophora apiculata and Sonneratia alba. The highest metal absorption in mangroves is the Sonneratia alba species. Mangroves translocate metals from roots to leaves. From the research results, mangroves are classified as low accumulator plans.
Studi Kualitas Perairan Budidaya Rumput Laut Di Kabupaten Sumba Timur Mbaba, Karel Yesaya; Oni Ringgu Lero; Maria G.L. Wohangara
Kappa Journal Vol 8 No 3 (2024): Desember
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i3.28146

Abstract

Research on water quality and strategies for handling seaweed washing waste provides information about management strategies aimed at finding out the quality of water in seaweed cultivation areas as a result of inappropriate handling of seaweed washing waste as well as providing information about management strategies as a recommendation and consideration for local governments. to adopt policies to overcome pollution in the East Sumba seaweed cultivation area. The measurement results show.  The measurement results show that there is contamination of the water quality meters, namely pH and salinity, namely 11 and 35 respectively, while the other parameters are still below the quality standards when compared with the Republic of Indonesia government regulation number 22 of 2021, concerning the quality of marine waters for marine biota. The high pH and salinity parameters of sea water are thought to be due to the seaweed washing process carried out by seaweed farmers in the Woba expanse, where the washing process is carried out directly at the cultivation location so that there is a possibility of seaweed washing waste entering the cultivation area. Researchers suggest carrying out initial treatment to overcome water pollution.
Pengaruh Budidaya Rumput Laut Terhadap Pendapatan Masyarakat Desa Letekonda Kecamatan Laura SBD Mbaba, Karel Yesaya; Wohangara, Maria G.L.; Lero, Oni R.; Natara, Dion; Ngongo, Yansensius M.; Noka Wea, Eleonora Darius
Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Vol. 6 No. 4 (2025): November
Publisher : Mataram University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/goescienceed.v6i4.1222

Abstract

Masyarakat desa Letekonda membudidayakan rumput laut di pesisir pantai Katewela. Berdasarkan hasil survey mandiri yang dilakukan peneliti, jenis rumput laut yang dibudidayakan adalah Eucheuma cottoni. Penelitian ini bertujuan untuk mengetahui pengaruh budidaya rumput laut terhadap pendapatan masyarakat Desa Letekonda. Pengumpulan data yang dilakukan terdiri dari data primer dan data sekunder. Data diperoleh melalui pengamatan dan wawancara, dimana metode wawancara yang dilakukan adalah wawancara terbuka. Hasil penelitian diperoleh produksi rumput laut kering di Desa Letekonda, Kecamatan Loura, Kabupaten Sumba Barat Daya, dari 18 petani rumput laut mencapai 1.704 kg dalam satu kali produksi. Dari hasil tersebut, total penerimaan mencapai Rp 18.744.000 per panen. Total pendapatan petani rumput laut untuk 528 bentangan adalah Rp 4.944.000 per panen, dengan total biaya yang dikeluarkan sebesar Rp 13.800.000 dalam satu kali produksi. Panjang setiap bentangan berkisar antara 20-50 meter, dengan total panjang bentangan yang dimiliki petani antara 25 - 50. meter. Hasil produksi mencapai 1.704 kg/meter. Dari produksi tersebut, penerimaan petani rumput laut adalah sebesar Rp 30.281 per meter. Sementara itu, pendapatan petani rumput laut tercatat sebesar Rp 7.987 per meter, dengan total biaya yang dikeluarkan sebesar Rp 22.294 per meter.
Co-Authors Bunni, Novilaka Goghy , Dominggus Lero, Oni R. Lero, Oni Ringgu Maria G.L. Wohangara Natara, Dion Ngongo, Yansensius M. Noka Wea, Eleonora Darius Oni Ringgu Lero Wohangara, Maria G.L.