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All Journal Jurnal Sapa Laut Acta Aquatica: Aquatic Sciences Journal Syntax Literate: Jurnal Ilmiah Indonesia
Arbi Mei Gitarama, Arbi Mei
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Agriculture, Biological Sciences & Forestry Humanities Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Social Sciences Other

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Amonia Pada Sistem Budidaya Ikan Wahyuningsih, Sri; Gitarama, Arbi Mei
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : CV. Ridwan Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (262.352 KB) | DOI: 10.36418/syntax-literate.v5i2.929

Abstract

Budidaya ikan merupakan bagian dari penyuplai utama ketersediaan ikan bagi masyarakat selain dari hasil tangkapan alam. Pertumbuhan kegiatan budidaya ikan yang sangat cepat di berbagai negara memungkinkan masyarakat dalam memenuhi kebutuhan protein hewani dari daging ikan. Seiring berjalannya kegiatan, budidaya ikan juga dapat menghasilkan produk sampingan berupa amonia yang dapat mengganggu sistem budidaya ikan. Hal ini dikarenakan amonia bersifat toksik bagi ikan di perairan. Terutama amonia dalam bentuk NH3, ion ini tidak bermuatan dan larut dalam lemak sehingga lebih mudah terserap dalam tubuh ikan dan menggganggu metabolisme. Kadar amonia dapat beracun bagi ikan yang dibudidayakan secara komersil pada konsentrasi diatas 1.5 mg/l, bahkan dalam kondisi ekstrim konsentrasi yang dapat diterima hanya 0.025 mg/l. Paper ini mereview profil dinamika amonia dalam air pada sistem budidaya ikan berdasarkan studi-studi yang telah ada. Perlunya manajemen kualitas air dalam sistem budidaya ikan yang dapat meminimalisir kadar amonia dalam air sehingga tidak bersifat toksik bagi ikan dan dapat meningkatkan jumlah produksi ikan dalam suatu siklus budidaya ikan.Kata kunci: Amonia, Sistem Budidaya, Toksisitas
DISTRIBUSI SPASIAL DAN PREFERENSI HABITAT GASTROPODA DI KAWASAN HUTAN MANGROVE SEGARA ANAKAN, CILACAP Kresnasari, Dewi; Gitarama, Arbi Mei; Subhan, Subhan
Jurnal Sapa Laut Vol 7, No 4: November 2022
Publisher : Fakultas Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/jsl.v7i4.40426

Abstract

Ecologically, the mangrove ecosystem acts as a spawning ground, nursery ground and feeding ground for various organisms. One of the biota located in the Segara Anakan mangrove ecosystem is Gastropods. This fauna plays an important role in food webs and decomposition processes. The Segara Anakan mangrove forest has undergone changes due to natural factors (sedimentation) and anthropogenic factors. If this is ignored, of course, it will affect the distribution pattern and habitat preferences. The purpose of this study was to determine the composition, abundance, distribution and habitat preferences of gastropods in the mangrove forest of Segara Anakan, Cilacap. The study was conducted in AugustOctober 2022 with a sampling period of once every two weeks. The sampling method used is purposive sampling. Two locations were selected based on different characteristics, namely: St A (eastern part of Segara Anakan, salinity 10-20 , density of mangrove Rhizophora sp. dense, close to the port) and St B (western part of Segara Anakan, salinity 5-10‰, mangrove density Rhizophora sp. is rare, close to residential areas). At each research station, five sampling points were determined, each point contained three sampling plots. The data obtained were analyzed by PCA (Principal Component Analysis). Based on the results of the research, there were 8 families of gastropod communities in St A and 6 families in St B. The most dominating families at the two observation stations were Potamididae and Neritidae. The highest abundance was found in St B at 290 ind/m2, while St A reached 180 ind/m2. The distribution pattern of gastropods is included in the grouping and even distribution criteria. From the results of PCA Gastropod analysis, it is closely related to dissolved oxygen content. This is related to the role of oxygen in the fulfillment of respiration and decomposition of organic matter.Keywords: Gastropods, Mangroves, Distribution patterns, Habitat preferences, Segara Anakan
Interaction Of Macrozoobenthos Abudance With Environmental Conditions In Segara Anakan, Cilacap Kresnasari, Dewi; Ayu, Nurina; Gitarama, Arbi Mei
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica: Jurnal Ilmu Perairan, Vol. 9: No. 2 (August, 2022)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v9i2.6372

Abstract

Segara Anakan Lagoon is a unique and distinctive area where most of the ecosystem is dominated by mangrove ecosystems. Some fauna make the ecosystem as a place for feeding ground, nursery ground and spawning ground for example macrozoobenthos. Its sessile nature makes the biota used as a bioindicator of an area. The Segara Anakan mangrove forest is currently under pressure due to the process of sedimentation and conversion of functions by residents. Therefore, this study aims to determine the interaction between the abundance of macrozoobenthos with environmental conditions. The research was carried out in July-September 2021 at the Segara Anakan Lagoon, Cilacap. The sampling method used is the Sample Survey Method with three stations determined purposively by describing different habitat conditions. Sampling was carried out on a monthly and the data obtained were analyzed by PCA. The results showed that the highest abundance of macrobenthos was found in the western part of the Segara Anakan mangrove forest. The value of macrozoobenthos abundance is influenced by TSS related to food availability. Furthermore, the quality of water and soil is still in accordance with the quality standards of marine life.Keywords: Environmental Characteristics; Macrozoobenthos; Mangrove; Segara Anakan
Co-Authors Ayu, Nurina Kresnasari, Dewi Sri Wahyuningsih Subhan Subhan