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Ima Nurmalia Permatasari
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Gedung F4 Fakultas Teknik dan Ilmu Kelautan - Jl. Arief Rahman Hakim No.150, Keputih, Kec. Sukolilo, Kota SBY, Jawa Timur 60111.
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INDONESIA
Jurnal Riset Kelautan Tropis (J-Tropimar)
Published by Universitas Hang Tuah
ISSN : 26567091     EISSN : 26563150     DOI : https://doi.org/10.30649/jrkt.v3i2
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Energy
1. Oseanografi Fisika 2. Oseanografi Geologi 3. Kimia Laut dan Biologi Laut 4. Ekologi dan Pencemaran Laut 5. Bioteknologi Kelautan 6. Penginderaan Jauh Kelautan 7. Sistem Informasi Geografik Kelautan 8. Hidrografi 9. Meteorologi Laut 10. Akustik Kelautan 11. Pengelolaan sumberdaya pesisir dan laut.
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Oseanografi
Articles 65 Documents
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Pengaruh Musim Terhadap Distribusi Temperatur, Salinitas Dan Densitas Di Laut Halmahera Delilla Suhanda; Muhammad Gilang Arindra Putra
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 1 (2021): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v3i1.34

Abstract

The Halmahera Sea is one of the waters that has an important role for the development of Indonesia's climate. The waters of the Halmahera Sea are the ARLINDO route which is part of the global circulation flow. This study aimed to examine the horizontal and vertical temperature profiles, salinity density and T-S diagrams in the Halmahera Sea. The results showed that the horizontal and vertical profiles in the two seasons did not have a significant effect, this could be due to the movement of the New Guinea air mass along the coast of North Papua, then into the Halmahera Sea. T-chart showed the current moving in the Halmahera Sea vertically, including the SPSW or South Pacific Subtropical Water category, as evidenced by a salinity value of 34.7 PSU and a temperature value of 14oC at a depth of 500 m.
STUDI PARAMETER OSEANOGRAFI FISIKA DAN KIMIA DI PERAIRAN PULAU SULAWESI, INDONESIA Luhur Moekti Prayogo; Irvan Aris Kurniawan
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 1 (2021): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v3i1.35

Abstract

Sulawesi Island is one of Indonesia's largest islands and is known to have potential in the marine sector, both in tourism and fisheries. Sulawesi island is crossed by the equator line in the northern quarter so that most of its territory is in the southern hemisphere. The diverse geography of the island of Sulawesi causes differences in the characteristics of the oceanographic parameters. The salinity and tides of seawater are oceanographic parameters that can affect biota's survival in the waters. This research aims to study the chemical physics oceanography parameters, which include tides and salinity in the waters of the island of Sulawesi using NOAA and BIG data. The research that has been done showed that the waters around the island of Sulawesi had an average high water level of 1.3 meters and a low water level of 0.9 meters. Then from the calculation, the Formzahl number is 0.8 (0,25 < F £ 1,5), which means that the tidal type is in the Mixed category, tends to be semi-diurnal. The salinity analysis results showed that in July 2020, the salinity content ranged from 29.63 to 36.45 ppt, with an average of 33.99 ppt. In November 2020, the salinity content ranged from 25.71 to 39.74 ppt with an average of 33.50 ppt. In February 2021, the salinity content ranged from 27.23 to 37.73 ppt with an average of 33.00 ppt. The lowest salinity was obtained in the rainy season in November 2020, and the highest salinity content was in the same month in a small part of the region. In the dry season, seawater's average salinity content in Sulawesi waters is relatively high compared to the rainy season, with the lowest content value of 29.63 ppt.
ANALISIS KESUBURAN PERAIRAN BERDASARKAN KELIMPAHAN FITOPLANKTON DI MUARA SUNGAI PORONG, SIDOARJO Devi Setyowardani; Nor Sa’adah; Nirmalasari Idha Wijaya
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 1 (2021): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v3i1.54

Abstract

The disposal of Lapindo mud which carries nutrients and other dissolved organic matter can cause mass enrichment and death of organisms due to the reduced amount of light entering the waters. The existence of phytoplankton can provide information about the state of the waters. This study aims to determine the fertility of the waters of the Porong River through the abundance of phytoplankton. This research was conducted from October to January 2021. Sampling was carried out at three stations. The plankton sampling method was carried out horizontally and identified using the Sedgwick Rafter Counting Cell (SRCC). Nitrate and phosphate water samples used for analysis were measured by Uv-Vis Spectrophotometry. Data analysis includes phytoplankton density, diversity index, uniformity index, and dominance index. The results showed that the composition of the phytoplankton species found during the observation was dominated by diatom classes (13 genera ) and dinoflagellates (2 genera). The abundance value of phytoplankton is 122.293 – 867.776 cells/m3. The water fertility status in the Porong River Sidoarjo is in the eutrophic category, namely waters with high fertility levels.
Pola Angin dan Kaitannya terhadap Karakteristik Tinggi Gelombang di Perairan Labuan Bajo, NTT Prima Aris Wardhani; Supriyatno Widagdo; Viv Djanat Prasita
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 1 (2021): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v3i1.37

Abstract

Labuan Bajo waters are marine tourism location that need meteorological and wave height information. The purpose of this research is determining local and regional wind patterns also their connection to wave height characteristics. The prosedure of this research is processing wind data using WR Plot and ArcGIS, then correlation analysis between wind and wave height using SPSS. The results showed that the dominant land breeze blows from South with an average speed of 2.18 knots while the sea breeze blows from Southwest, West, Northwest to North with an average speed of 5.83 knots. Regional wind patterns are influenced by seasonal wind patterns. In the West Season tends blow from West and Northwest with an average speed of 2.49 knots, in the East Season tends to blow from East and Southeast with an average speed of 2.64 knots while in the Transition Season tends to blow from various directions. On a daily, the waves tend to be high at 07:00 with an average of 1.39 m while at 19:00 tend to be low with an average of 0.26 m. Seasonally the highest wave height occurs in the West Season with an average of 1.35 m and the lowest wave height occurs in Transition Season II with an average of 0.79 m. Regional winds and wave heights have a moderate to strong connection in the East Season (R = 0.438-0.639).
Kajian Resiko, Dampak, Kerentanan dan Mitigasi Bencana Abrasi Dibeberapa Pesisir Indonesia Ima Nurmalia Permatasari
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 1 (2021): April
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v3i1.56

Abstract

Coastal areas are areas of sea and land where the region is under pressure due to activities and phenomena that occur on land and at sea. Coastal problems such as coastal morphological changes such as abrasion and accretion occur. Coastal erosion, also known as abrasion, tends to increase in various areas. The cause of coastal erosion itself is Soil Level Drop, land subsidence, mangrove forest damage, damage caused by wave hydrodynamic forces, damage due to other natural causes and damage caused by other human activities. Some factors of disaster risk include the high impact of extreme wave threats and coastal abrasion, the high vulnerability of a region, and the low capacity to face the threat of disasters. Abrasions make residents lose their homes and farmland and encroachment which has resulted in loss of livelihood and reduced income. Today the majority of productive-aged people have a livelihood as factory workers and construction workers. The vulnerability value of an area is influenced by several factors, namely the high density of residents and vulnerable groups, the high number of poor families and fishing groups, the high density of settlements and the lack of vegetation of coastal areas in the face of disaster threats. One of the mitigations carried out is knowing the extent of damage due to abrasion, Knowing the distribution of abrasion areas and abrasion disaster mitigation with community-based coastal area management and integrated coastal management.
PENCEMARAN MINYAK DI PERAIRAN UTARA PULAU BAWEAN Sarah Nur Qowiyah; Mahmiah; Rudi Siap Bintoro
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 2 (2021): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v3i2.40

Abstract

  Marine pollution results in a decrease in the quality and quantity of coastal and marine resources. Most of the people in tambak sub-district have a livelihood as fishermen and work in the field of fish processing industry and seafood trade and the location of the waters are often passed by industrial vessels. This resulted in increased ship activity in the waters of Labuhan Beach, Tambak District, Tanjungori Village. As the activity increases it causes marine pollution. One of the sources of pollution produced is oil spills from former fuel boats or ships that cross the area of the water. This method can provide information about the condition of the waters according to their designation. The purpose of this study is to know the water quality based on the parameters of temperature, pH, salinity and brightness and know how much oil content in the waters of Labuhan Beach, Bawean Island. Sea water sampling was conducted at 4 stations, then the results were compared with sea water quality standards for biota based on KEPMEN LH No.51 Year 2004. The results showed that the oil content ranged from 0.0016%–0.0377%. As for the pH parameter, salinity and brightness in accordance with the quality standard, for the temperature parameter exceeds the standard value of quality. Based on this study, pollution index calculations show that the waters of Labuhan Beach, Bawean Island are in the category of lightly polluted.  
KAJIAN KERENTANAN KAWASAN PESISIR TERHADAP BENCANA KENAIKAN MUKA AIR LAUT (SEA LEVEL RISE) DI INDONESIA Nabila Afifah Azuga
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 2 (2021): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v3i2.41

Abstract

Coastal area is defined as a transitional area between land ecosystems and marine ecosystems. Coastal areas are very vulnerable to environmental pressures, both on land and at sea. One form of pressure that threatens the sustainability of coastal areas almost all over the world is the phenomenon of sea level rise. The phenomenon of sea level rise itself is a result of the expansion and contribution of ice due to increased of melting ice as a result of global warming. It is predicted that in 2100 there will be a rise of sea level that reach 0.26 to 0.98 meters. Sea level rise can be analyzed using a trendline based on monthly slopes to determine the average of sea level rise per year. In addition, to determine the vulnerability of coastal areas to sea level rise, it can be determined through two aspects: aspects of geophysical vulnerability and aspects of socio-economic vulnerability.
PREVALENSI PENYAKIT PADA KARANG KERAS DI PERAIRAN KALEDUPA, TAMAN NASIONAL WAKATOBI Ainul Rahman; Nor Sa'adah; Nirmalasari I. Wijaya; Ardhi Syam Bahroun
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 2 (2021): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v3i2.42

Abstract

Coral disease is a disturbance to coral health that causes physiological disturbances for coral biota. The emergence of coral disease is characterized by discoloration, damage to skeleton coral biota, to the loss of its tissueThis study aims to identify the type of coral disease and determine its prevalence in Kaledupa Waters, Wakatobi National Park, Southeast Sulawesi. This research was conducted in June 2021 in the Kaledupa Waters of Wakatobi National Park using the Belt Transect method with a size of 3 x 50 m at 3 observation points at a depth of 3-5 meters. Measurement of Oceanographic Physics-Chemistry parameters is carried out directly in the field. Identification of coral diseases was carried out descriptively based on the coral disease handbook and journal references. The results obtained found 4 types of coral disease that infect coral biota in the waters of Kaledupa Island, Wakatobi National Park, namely Black Band Disease (BBD), White Band Disease (WBD), White Pox and Ulcerative White Spot (UWS). As well as the results obtained for the overall prevalence of coral disease in the study site an average of 1.5%.
ANALISIS BAKTERI SIMBION MANGROVE AVICENNIA MARINA SEBAGAI ANTIFOULING Alifia Rizky Novitasari; Nor Sa'adah; Mahmiah
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 2 (2021): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v3i2.43

Abstract

The accumulation of biofouling on a substrate causes material loss and huge economics in the maintenance of aquaculture systems, ship hulls, seawater pipelines, coastal power plants, and other marine infrastructure. Prevention of the attachment of biofouling organisms using antifouling paints that have been developed and used for a long time. Antifouling paint contains chemical compounds (biocides). The most sensitive organisms to antifouling paint are gastropods and bivalve that cause endocrine disorders, larval disorders and shell malformations. This study aims to obtain antifouling bacteria through the isolation process of bacteria obtained from the bark Avicennia marina mangrove. The method was beginning with isolation of bacteria bark of Avicennia marina mangrove, identification of bacteria, and antifouling activity test. The results obtained from isolation of bacteria, there are 9 bacteria endophytic symbionts of the inner bark and 9 epiphytic bacteria of the outer bark. The inhibition zone test of the endophytic bacteria in the bark showed that there was no antifouling activity.
KANDUNGAN LOGAM BERAT TIMBAL (Pb) PADA BAHAN BAKU AIR UNTUK PRODUKSI GARAM DI KAWASAN LADANG GARAM SEDAYULAWAS LAMONGAN Hilda Ziya Abiyana; Mahmiah
Jurnal Riset Kelautan Tropis (Journal Of Tropical Marine Research) (J-Tropimar) Vol 3 No 2 (2021): November
Publisher : Universitas Hang Tuah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30649/jrkt.v3i2.45

Abstract

The waters of Sedayu Lawas Lamongan are widely used as salt production sites. Salt production is strongly influenced by the quality of raw water used. The quality of water raw materials must be free from heavy metal pollutants or in accordance with the threshold value (NAB). One of the heavy metals that pollute the environment is Lead (Pb). This study aims to analyze the heavy metal content of Pb in water raw materials, how the quality of raw materials of water when compared with quality standards and how the correlation between water physics-chemical parameters include rainfall, wind, temperature, salinity, pH to Pb content in 5 stations observation. The heavy metal content of Pb was analyzed by the Inductively Coupled Plasma-Optical Emission Spectrophotometer (ICP-EOS) method. Correlation using Pearson method. The results showed that Pb content of raw water for salt production in five stations was 0.0626, 0.0672, 0.0455, 0.0487, and 0.0416 ppm, respectively. Based on the measurement results when compared with the Ministerial Decree No. 51 Year 2004, the raw material of water used exceeds NAB which is 0.008 ppm. The result of parameter correlation to Pb content shows salinity, pH, has a strong inversely relationship affecting the presence of heavy metals. The temperature parameter has a direct relationship to the Pb content

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