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PENGARUH SALINITAS TERHADAP PERTUMBUHAN SEL, KONSENTRASI FENOLIK DAN FLAVONOID SPIRULINA PADA MEDIA KULTUR MODIFIKASI WALNE DAN AIR LIMBAH BUDIDAYA IKAN Anggraeni, Anggraeni; Gus Mahardika, Robby; Utami, Eva
Jurnal Harpodon Borneo VOLUME 17 NO.1 APRIL 2024
Publisher : Fakultas Perikanan Dan Ilmu Kelautan Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/harpodon.v17i1.5551

Spirulina merupakan mikroalga potensial untuk dikultur karena mengandung bahan aktif pada pangan fungsional, seperti pigmen fikosianin, fenolik dan senyawa flavonoid. Pertumbuhan dan produksi senyawa aktif Spirulina optimal apabila dikultur pada media yang mengandung nutrisi yang cukup, terutama nitrogen. Penyerapan nitrogen dipengaruhi oleh salinitas. Penelitian ini bertujuan untuk menganalisis salinitas optimum yang mampu meningkatkan pertumbuhan sel dan senyawa aktif Spirulina. Penelitian dilakukan secara eksperimental laboratoris. Perlakuan salinitas digunakan 6 taraf konsentrasi, yaitu 0, 10, 15, 20, 25, dan 30 ppt. Media kultur dimodifikasi dengan penambahan nutrisi walne dan air limbah budidaya ikan dengan perbandingan 1:1. Parameter yang diamati berupa laju pertumbuhan sel, konsentrasi senyawa fenolik dan flavonoid secara kuantitatif. Hasil penelitian menunjukkan bahwa perlakuan salinitas yang berbeda berpengaruh terhadap laju pertumbuhan, sintesis senyawa fenolik dan flavonoid. Salinitas 30 ppt menghasilkan pertumbuhan sel Spirulina tertinggi dengan jumlah 34.575 unit/mL. Konsentrasi fenolik dan flavonoid yang diberi perlakuan salinitas memiliki konsentrasi yang lebih tinggi dibandingkan tanpa perlakuan salinitas. Peningkatan salinitas memberikan reaksi positif terhadap peningkatan kadar flavonoid, namun menunjukkan reaksi negatif pada kadar fenolik.

Perbandingan Densitas Zooxanthellae Pada Karang Keras di Perairan Rebo Kabupaten Bangka Narfa, Narfa; Hudatwi, Mu'alimah; Utami, Eva
Jurnal Kelautan Vol 17, No 2: Agustus (2024)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v17i2.21733

ABSTRAKPerairan Rebo yang berada di Desa Rebo Kabupaten Bangka Provinsi Kepulauan Bangka Belitung memiliki populasi terumbu karang di daerah Karang Melantut, namun daerah ini mengalami kerusakan dari kegiatan penambangan timah lepas pantai dan TI apung yang menghasilkan limbah berupa tailing (lumpur). Akibat dari pengendapan lumpur berdampak buruk terhadap ekosistem terumbu karang salah satunya pertumbuhan alga yang bersimbiosis dengan karang yaitu zooxanthellae. Tujuan penelitian yaitu mengetahui perbedaan densitas zooxanthellae pada karang keras dengan jenis yang berbeda. Penelitian dilakukan pada Bulan Agustus tahun 2022, dengan mengambil tiga jenis karang yaitu Lobophyllia corimbosa, Acropora kimbeensis, dan Acropora nobilis. Metode penelitian yaitu melakukan isolasi sel zooxanthellae dengan menyemprotkan air laut tersaring pada fragmen karang menggunakan water flosser hingga sel terlepas dari jaringan karang. Larutan sel zooxanthellae diawetkan dalam botol sampel yang diteteskan formalin 4% sebayak lima tetes dan diamati di bawah mikroskop. Rata-rata densitas zooxanthellae dihitung menggunakan Microsoft exel yaitu Lobophyllia corimbose 1507 sel/cm², Acropora kimbeensis 4134 sel/cm², dan Acropora nobilis rata-rata 2294 sel/cm². Hasil pengolahan data menggunakan statistik analisis varian (ANOVA) menunjukkan adanya perbedaan nyata densitas zooxanthellae pada ketiga jenis karang dengan nilai signifikan 0,05. Hasil dari uji ANOVA dan tukey test, mendapatkan nilai F hitung 67.413 dan memperoler F tabel sebesar 3,13 sehingga keputusan yang diterima adalah H1, yaitu adanya perbedaan densitas zooxanthellae pada tiga jenis karang. Adanya perbedaaan densitas zooxanthellae pada ketiga jenis karang disebabkan oleh perbedaan lifeform karang. Perbedaan lifeform karang dipengaruhi oleh suhu, kedalaman dan tingkat ekstrim suatu perairan. Kata Kunci: zooxanthellae; densitas; kabupaten bangka.ABSTRACTRebo Villagein Bangka Regency, Bangka Belitung Islands Province has high population of coral reefs in Karang Melantut area, but has suffered damage from offshore tand anshore in mining activities which produce waste in the from of sludge. The consequences of sludge deposition can have a negative impact on coral reef ecosystems, especially the relationship of corals with the symbiotic algae (zooxanthellae). The aim of this research is to analysis of differences in density, size and mitotic index of zooxanthellae. The research was conducted in August 2022, by taking three types of coral, Lobophyllia corimbosa, Acropora kimbeensis, and Acropora nobilis. The research method is to isolate zooxanthellae cells by spraying filtered seawater on coralfragments using a water flosser until the cels are seperatedfrom the coral. The zooxanthellae cell solution was placed in a sample bottle in which five drops of 4% formalin were added and observed under the microscope. The average density of zooxanthellae was calculated using Microsoft exel, from Lobophyllia corimbosa is 1507 cells/cm², Acropora kimbeensis 4134 cells/cm², and Acropora nobilis an average of 2294 cells/cm². The results of the statistic analisis of variance (ANOVA) showed that there were significant differences zooxanthellae in the three types of coral with a significant value of 0.05. The results of the ANOVA test and Tukey test obtained a calculated F value of 67.413 and obtained an F table of 3.13 so that the decision received was H1, namely that there were differences in zooxanthellae density in the three types of coral. The difference in zooxanthellae density in the three types of coral is caused by differences in coral lifeforms. Differences in coral life forms are influenced by temperature, depth and extreme levels of water.Keywords: Zooxanthellae; Density; regency bangka.

Assessing changes in the mangrove ecosystem land area of Tanakeke Island, Takalar Regency, using Landsat 8 imagery Rosalina, Dwi; Rombe, Katarina Hesty; Arafat, Yasser; Jamil, Khairul; Hawati, Hawati; Sabilah, Anisa Aulia; Warni, Warni; Leilani, Ani; Ruzuqi, Rezza; Sari, Suci Puspita; Utami, Eva
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 2 (2024): AUGUST 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.2.33697

Rewataya Village is situated on Tanakeke Island, within the Takalar Regency. Despite its significance, previous studies have not addressed the mapping of changes in mangrove land area within this locale. The present research aimed to fill this gap by assessing alterations in mangrove land area from 2013 to 2023, alongside examining density and canopy cover conditions. The method employed for mapping changes in land area entailed utilizing the unsupervised method with maximum likelihood classification. Additionally, the assessment of mangrove conditions involved employing plot line transects to determine species density and hemispherical photography methods to evaluate canopy cover. Notably, two types of mangroves, namely Rhizophora mucronata and Rhizophora apiculata, are prevalent in this village. The mangrove species density in Rewataya Village, Tanakeke Island, is categorized as good. In addition, the canopy cover in Rewataya Village falls within the classification of very dense according to mangrove damage criteria. However, there has been a notable reduction in the mangrove ecosystem area between 2013 and 2023, with a decrease of 42.28 hectares (from 367.13 hectares to 324.84 hectares).Keywords: MangroveLandsat 8Rewataya villageUnsupervised

Assessing changes in the mangrove ecosystem land area of Tanakeke Island, Takalar Regency, using Landsat 8 imagery Rosalina, Dwi; Rombe, Katarina Hesty; Arafat, Yasser; Jamil, Khairul; Hawati, Hawati; Sabilah, Anisa Aulia; Warni, Warni; Leilani, Ani; Ruzuqi, Rezza; Sari, Suci Puspita; Utami, Eva
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 2 (2024): AUGUST 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.2.33697

Rewataya Village is situated on Tanakeke Island, within the Takalar Regency. Despite its significance, previous studies have not addressed the mapping of changes in mangrove land area within this locale. The present research aimed to fill this gap by assessing alterations in mangrove land area from 2013 to 2023, alongside examining density and canopy cover conditions. The method employed for mapping changes in land area entailed utilizing the unsupervised method with maximum likelihood classification. Additionally, the assessment of mangrove conditions involved employing plot line transects to determine species density and hemispherical photography methods to evaluate canopy cover. Notably, two types of mangroves, namely Rhizophora mucronata and Rhizophora apiculata, are prevalent in this village. The mangrove species density in Rewataya Village, Tanakeke Island, is categorized as good. In addition, the canopy cover in Rewataya Village falls within the classification of very dense according to mangrove damage criteria. However, there has been a notable reduction in the mangrove ecosystem area between 2013 and 2023, with a decrease of 42.28 hectares (from 367.13 hectares to 324.84 hectares).Keywords: MangroveLandsat 8Rewataya villageUnsupervised

PERBANDINGAN MORFOMETRIK LAMUN Enhalus acoroides DI PANTAI TUKAK DAN PANTAI TANJUNG KERASAK KABUPATEN BANGKA SELATAN Ramadhayanti, Rizka; Umroh, Umroh; Utami, Eva
Jurnal Perikanan Unram Vol 15 No 4 (2025): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v15i4.1589

Perbedaan dalam kualitas perairan serta karakteristik substrat antara Pantai Tukak dan Pantai Tanjung Kerasak diduga dapat memengaruhi morfometrik lamun Enhalus acoroides yang tumbuh di wilayah tersebut. Mengacu pada hasil penelitian sebelumnya, dibutuhkan eksplorasi lebih lanjut secara mendalam di wilayah Bangka Selatan, terutama di Pantai Tukak dan Pantai Tanjung Kerasak sebagai lokasi utama penelitian ini bertujuan mengidentifikasi variasi morfometrik lamun Enhalus acoroides antara kedua lokasi penelitian tersebut, serta melakukan analisis keterkaitan antara morfometrik lamun tersebut dengan kondisi kualitas perairan di lokasi tersebut. Kegiatan penelitian ini dilaksanakan selama bulan Januari tahun 2024, dengan lokasi pelaksanaan studi bertempat di Pantai Tukak dan Pantai Tanjung Kerasak. Pengambilan data dilakukan di enam titik stasiun, dengan jumlah total 360 sampel morfometrik lamun Enhalus acoroides yang berhasil dikumpulkan. Hasil penelitian mengindikasikan bahwa terdapat perbedaan ukuran morfologi pada lamun Enhalus acoroides diantara kedua Lokasi penelitian tersebut. Hasil analisis kondisi kualitas perairan Pantai Tukak menunjukkan adanya korelasi yang signifikan antara parameter DO (oksigen terlarut) dan panjang daun lamun Enhalus acoroides. Sementara itu, hasil analisis yang dilakukan di kawasan Pantai Tanjung Kerasak menunjukkan bahwa kualitas perairan di wilayah tersebut berada dalam kondisi yang memiliki korelasi dalam tingkat sedang terhadap morfometrik lamun dari spesies Enhalus acoroides

HUBUNGAN STRUKTUR KOMUNITAS PLANKTON DAN KUALITAS PERAIRAN MUARA SUNGAI BEROK BANGKA TENGAH Dly, Nurliana Isroq; Utami, Eva; Pamungkas, Aditya
Jurnal Perikanan Unram Vol 15 No 4 (2025): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v15i4.1609

Plankton are the smallest biota that drift and inhabit marine and fresh waters. Plankton have a variety of responses and are susceptible to changes in water quality. The purpose of this research is to find out and analyze the structure of the plankton community and also the quality of the waters and their relationship using spearman correlation analysis. The time and place of the research was carried out of October 2022 in the waters of the Berok Estuary, Central Bangka, as many as 6 station points using the plankton net tool with the vertical method. Plankton samples were identified under a binocular microscope with three repetitions. The results showed that 67 species from 39 genus. Lowest plankton abundance at station 1, namely 82 cells/l and the highest at stations 5 and 6, namely 1,310 cells/l and 1,327 cells/l. The results of the analysis of the lowest plankton diversity index were at station 1, namely 1.945 and the highest at station 5, namely 3.265. The lowest uniformity index at station 1 is 0.620 and the highest at station 2 is 0.877. The lowest dominance index at station 5 is 0.055 and the highest at station 1 is 0.183. several water parameters have been tested according to quality standards, except brightness, nitrate and orthophosphate, will the appropriate parameters have been optimal for marine biota. The relationship of water quality including orthophosphate and current velocity a significant relationship to the plankton community structure in the waters of the Berok Estuary, Central Bangka

Analisis Keanekaragaman Jenis Plankton di Perairan Pulau Semujur dan Muara Sungai Kurau Kabupaten Bangka Tengah Damara, Danu; Utami, Eva; Hudatwi, Mu’alimah
Jurnal Ilmu Kelautan Lesser Sunda Vol. 2 No. 2 (2022): Jurnal Ilmu Kelautan - Lesser Sunda
Publisher : Program Studi Ilmu Kelautan, Jurusan Perikanan dan Ilmu Kelautan, Fakultas Pertanian, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jikls.v2i2.64

Plankton is small organisms that live floating in the water column and are very important components in aquatic ecosystems. The purpose of this study was to determine the type of plankton, the ecological index of plankton, and the relationship between the. Physico-chemical parameters of the waters on the diversity of plankton species using statistical analysis. This research was conducted in March-April 2021 on Semujur Island, Pangkalan Baru District and Muara Sungai Kurau. Plankton data collection was carried out vertically using a plankton net. The results showed that the types of plankton found in the waters of Semujur Island and the Estuary of the Kurau River, Central Bangka Regency were 45 types of plankton. The highest plankton diversity value was at station III, namely 2.603 and the lowest value was at station VI, namely 1.361. The highest uniformity index is at station IV at 0.939 and the lowest value is at station V, which is 0.775. The highest value of the dominance index is at station VI, which is 0.307 and the lowest value is at station IV, which is 0.084. The results of the Spearman correlation in the waters of Semujur Island and the estuary of the Kurau River showed that temperature, pH, salinity, and current velocity were positively correlated and in the same direction as plankton diversity. Meanwhile DO and brightness was negatively correlated and opposite in direction to plankton diversity

Kesehatan Ekosistem Padang Lamun di Perairan Tukak dengan Metode Seagrass Ecological Quality Index (SEQI) Handayani, Ferly; Hudatwi, Mu’alimah; Utami, Eva
Jurnal Ilmu Kelautan Lesser Sunda Vol. 4 No. 2 (2024): Jurnal Ilmu Kelautan - Lesser Sunda
Publisher : Program Studi Ilmu Kelautan, Jurusan Perikanan dan Ilmu Kelautan, Fakultas Pertanian, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jikls.v4i2.101

Seagrass ecosystems have a very important role in coastal areas, namely as carbon stocks and storage. Seagrass beds in Tukak Village are seriously threatened by mining activities and the development of shrimp ponds in coastal areas. The important role of seagrass meadows and the high threat from anthropogenic activities, however, there is very little data and information on the health condition of seagrass meadows in Tukak Village. While seagrass health data is very important as an effort to protect and restore seagrass ecosystems. The research objectives included: 1) Analyzing the health and condition of seagrass beds in Tukak Beach, South Bangka Regency, 2) Analyzing the percentage of seagrass cover and species richness in Tukak Beach, South Bangka Regency. The research was conducted in September 2023 at Tukak Beach. The research stages consisted of 1) Station point determination, 2) Seagrass, macroalgae and epiphyte data collection, 3) Measurement of environmental parameters, 4) Data analysis includes analysis of seagrass health with the Seagrass Ecological Quality Index (SEQI) method and calculation of Epiphyte Cover on seagrass leaves. The richness of seagrass species found in Tukak Village during the research amounted to 6 species, namely Enhalus acoroides (EA), Thalassia hemprichii (TH), Oceana serrulata (OS), Halodule uninervis (HU), Halophila ovalis (HO) and Syringodium isoetifolium (SI). The most dominating seagrass is Thalassia hemprichii (TH). Seagrass cover in Tukak Village is categorized as moderate to good with a range of seagrass cover of 20.64% to 24.59%. Seagrass cover that is categorized as rare is found at Station 3 with a cover of 20.64%. While the most seagrass cover category is found at Station 1 with a cover of 24.59%. The results of the seagrass health analysis of seagrass conditions in Tukak Waters are categorized as Moderate to Good. Moderate conditions are found at Station 2 with a value of 0.68, while the good category is found at Stations 1 and 3 with values of 0.75 and 0.71.

Keanekaragaman Jenis Ikan Karang di Fish Shelter Perairan Rebo Kecamatan Sungailiat Kabupaten Bangka Pratama, Sandy Agustia Pratama; Umroh; Utami, Eva
Jurnal Ilmu Kelautan Lesser Sunda Vol. 3 No. 2 (2023): Jurnal Ilmu Kelautan - Lesser Sunda
Publisher : Program Studi Ilmu Kelautan, Jurusan Perikanan dan Ilmu Kelautan, Fakultas Pertanian, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jikls.v3i2.102

Tin mining activities carried out in Bangka Island waters have a negative impact on the coral reef ecosystem. Overcoming this problem requires efforts to rehabilitate coral reef ecosystems, such as sinking fish shelters in these waters, which can provide new habitats for reef fish. The purpose of this study was to determine the type of reef fish diversity in fish shelters in 3 different years of sinking. This research was conducted in May 2022 in Rebo Waters, using the visual census method. The results stated that the presence of reef fish species found at the three stations was 55 species from 22 families. The diversity index value at station 1 was 2.04, station 2 was 1.36and station 3 was 1.63. The uniformity index value at station 1 was 0.55 station 2 was 0.41 and station 3 was 0.43. The dominance index value at station 1 is 0.24, station 2 is 0.37 and station 3 is 0.32. The biomass calculation value at station 1 was 0.23, station 2 was 0.36 and station 3 was 0.33.

Perbedaan Jumlah Sel Pada Awal Tebar Terhadap Laju Pertumbuhan Spirulina sp. Skala Laboratorium Candra, Adi; Hudatwi, Mu'alimah; Utami, Eva
Jurnal Ilmu Kelautan Lesser Sunda Vol. 3 No. 2 (2023): Jurnal Ilmu Kelautan - Lesser Sunda
Publisher : Program Studi Ilmu Kelautan, Jurusan Perikanan dan Ilmu Kelautan, Fakultas Pertanian, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jikls.v3i2.103

Spirulina sp. is a typel of filamelntous bluel-greleln algael that has thel potelntial to bel delvellopeld widelly in Indonelsia. Spirulina sp. is also known as a natural feleld for hatchelry larvael of shrimp, fish, and livelstock belcausel it has a high nutrielnts. This relselarch aims to deltelrminel thel elffelcts of providing diffelrelnt numbelrs of algael on thel growth ratel of Spirulina sp. on a laboratory scalel and find out thel belst numbelr of algael for thel growth ratel of Spirulina sp. Thel melthod of this study is an elxpelrimelntal melthod. In addition, this study is divideld into 3 trelatmelnts, namelly trelatmelnt A using 40 cellls/10µl Spirulina sp., trelatmelnt B using 80 cellls/10µl, and trelatmelnt C using 120 cellls/10µl with threlel relpeltitions. Thel relsults of thel ANOVA statistical analysis showeld that diffelrelnt numbelrs of algael at thel belginning of thel stock did not show a significant diffelrelncel beltweleln thel trelatmelnts. Obselrvation of thel daily growth ratel of Spirulina sp. in elach trelatmelnt has diffelrelnt relsult. Thel high growth ratel was in trelatmelnt C with 102,5 cellls/10µl/day, whilel thel lowelst growth ratel was in trelatmelnt A with 48,9 cellls/10µl/day.

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