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All Journal Journal of Marine Research Jurnal Penelitian Pendidikan IPA (JPPIPA)
Kusuma, Almira Nadia
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Materials Science & Nanotechnology Physics

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Kandungan Klorofil Cymodocea serrulata Pada Kedalaman Berbeda di Perairan Pulau Panjang Jepara Kusuma, Almira Nadia; Suryono, Chrisna Adhi; Riniatsih, Ita
977-2407769
Publisher : Departemen Ilmu Kelautan, Fakultas PerikanJurusan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jmr.v9i4.27637

Abstract

Klorofil merupakan faktor utama yang mempengaruhi fotosintesis. Cymodocea serrulata membutuhkan intensitas cahaya yang cukup tinggi untuk melaksanakan proses fotosintesis. Perbedaan intensitas cahaya terhadap lamun tersebut diduga akan mempengaruhi pembentukan klorofil, sehingga penelitian ini dilakukan untuk mengetahui pengaruh perbedaan kedalaman perairan terhadap kandungan klorofil C. serrulata. Penelitian ini menggunakan metode spektrofotometri untuk mengetahui absorbansi pigmen klorofil daun lamun C. Serrulata. Analisis statistika digunakan untuk mendeskripsikan pengaruh kecerahan perairan dan stasiun lokasi terhadap kandungan klorofil lamun C.serrulata. Berdasarkan hasil penelitian, kandungan klorofil tertinggi terdapat di kedalaman 1 meter yaitu sebesar 3,061 µg/l, sedangkan kandungan klorofil terendah terdapat di kedalaman 3 meter yaitu sebesar 1,509 µg/l. Kandungan klorofil menurun seiring dengan bertambahnya kedalaman, yang dipengaruhi oleh kecerahan perairan  dan kadar TSS yang dapat menghambat penetrasi cahaya yang menembus perairan. Chlorophyll is the main factor that affects photosynthesis. Cymodocea serrulata requires a high intensity of the light to carry out the process of photosynthesis. In this case, the differences in light intensity will affect the formation of chlorophyll in seagrass leaves. This study aims to determine the effect of different depths on the chlorophyll content of C. serrulata. Therefore, this study used a spectrophotometric method to determine the absorbance of chlorophyll pigment in C. serrulata. Statistical analysis used to describe the water transparency and sampling station on chlorophyll content. Based on the study results, the highest chlorophyll content has found in 1 meter depth of the sea, which is equal to 3,061 µg/l and the lowest chlorophyll content in 3 meter depth of the sea equal to 1,509 µg/l. It can be concluded that the chlorophyll content decreased while the increasing of the depth due to the water transparency and TSS levels, which can inhibit the penetration of light through the water.
Kajian Ekologis untuk Mendukung Produktivitas Budidaya Udang Vaname di Desa Lawallu, Kabupaten Barru, Sulawesi Selatan Alfian; Widigdo, Bambang; Haryadi, Sigid; Kusuma, Almira Nadia; Utami, Ardhana Reswari; Hidayat, Adrian
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.8032

Abstract

Soppeng Riaja Subdistrict is one of the coastal areas that has long been utilized for shrimp farming. Since 2007, vannamei shrimp (Litopenaeus vannamei) has been the most widely cultivated species. The biggest challenge faced by shrimp farmers in production is disease outbreaks. Diseases in shrimp cause a decline in shrimp quality and even mortality, which ultimately leads to economic losses and impacts the sustainability of shrimp farming operations. This study aims to evaluate the ecological aspects, including water conditions and carrying capacity, based on its ability to accommodate waste from shrimp farming in Lawallu Village, Soppeng Riaja Subdistrict, Barru Regency, South Sulawesi. The research was conducted from August to October 2023 using a quantitative approach. The findings reveal that vannamei shrimp production in Lawallu Village has been declining annually. In 2023, productivity was recorded at 438 tons, significantly below the sustainable pond productivity benchmark of 1008.9 tons per year. Despite the low productivity, the total shrimp farming area in Lawallu Village has reached 88.66 hectares, exceeding its ideal carrying capacity, which is only 44.84 hectares. Water quality analysis showed that ammonia levels in the shrimp pond waters of Lawallu Village have exceeded the quality standards. The adoption of sustainable aquaculture technology, effective water quality management, and proper wastewater management are essential strategies for achieving sustainable productivity.
Co-Authors Adrian Hidayat, Adrian Alfian Chrisna Adhi Suryono Haryadi, Sigid Ita Riniatsih Utami, Ardhana Reswari