Ditapis dengan
Analisis Densitas Zooxanthellae Pada Karang Acropora Sp Di Pulau Pagang, Kabu…
Coral reefs play a crucial role in maintaining the stability of marine ecosystems. Healthy coral growth is often indicated by the presence of symbiotic zooxanthellae within the coral tissue. The density of zooxanthellae varies and is influenced by several factors. Depth affects these limiting factors—such as light intensity, temperature, and ocean acidity—which in turn impacts zooxanthellae…
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- 2104114049
Isolasi Dan Identifikasi Bakteri Pendegradasi Mikroplastik Pada Sedimen Di Pe…
Microplastic pollution in the marine environment has become a critical environmental issue that requires a biological remediation approach. The coastal waters of Bagansiapiapi, Riau Province, are an important fishery area potentially affected by microplastic contamination. This study aims to isolate and identify microplastic-degrading bacteria from sediments in the waters of Bagansiapiapi, Riau…
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- 2104113714
Analisis Kandungan Dan Aktivitas Antibakteri Ekstrak Daun Sonneratia Alba Dal…
Bacterial resistance to synthetic antibiotics is a global challenge that encourages the search for natural antibacterial agents. This condition causes many bacteria to become insensitive to conventional treatments, so that infections that were previously easy to treat become difficult to control. In the fisheries sector, the uncontrolled use of antibiotics can also pollute the aquatic environme…
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- 2104110816
Jenis Dan Kelimpahan Zooplankton Berdasarkan Kedalaman Yang Berbeda Di Perair…
Teluk Makmur in Dumai City is a coastal area experiencing ecological pressure due to human activities, such as tourism and industry. Changes in water quality in this region may affect the structure of the zooplankton community, which plays a crucial role in the food chain. This study aims to determine the species and abundance of zooplankton based on different depths and stations. The research …
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- 2104113703
Hubungan Total Padatan Tersuspensi Dengan Klorofil-A Di Perairan Pantai Sepah…
TSSand chlorophyll-aareimportant indicators of waterquality and fertility. Increased TSS inhibits light and photosynthesis of phytoplankton, thus reducing primary productivity. The research was conducted in February-April 2025, in the Sea Waters of Sepahat Beach, Bandar Laksmana District, Bengkalis Regency with the aim of analyzing and knowing the relationship between TSS and Chlorophyll-a cont…
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- 2104111716
Uji Fitokimia Dan Analisis Aktivitas Antibakteri Ekstrak Daun Mangrove Brugui…
This study was conducted with the aim of analyzing whether there are secondary metabolite compounds in Bruguiera sexangula mangrove leaves, to test the effectiveness of B. sexangula mangrove leaf extract in inhibiting the growth of A. hydrophila, P. aeroginosa, and S. aureus bacteria, to determine the effective concentration in inhibiting the growth of pathogenic bacteria in January - May 2025.…
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- 2104112823
Uji Antibakteri Dan Fitokimia Ekstrak Daun Rhizophora Mucronata Terhadap Bakt…
Mangroves are important ecosystems that contain various bioactive compounds. Rhizophora mucronata is one of the potential mangrove species, but information on the content of active compounds in its leaves is still limited. This study aims to identify secondary metabolite compounds in ethanol extract of Rhizophora mucronata leaves through qualitative phytochemical tests. The research was conduct…
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- 2104126057
Potensi Bakteri Fotosintetik Anoksigenik BFA) Dari Perairan Dumai Sebagai Age…
This study was conducted to identify the types and potential of anoxygenic photosynthetic bacteria (ABF) from Dumai waters, Riau Province as biodegradation agents of solar oil. The study was conducted from January to March 2025. Sea air samples were taken from three different stations in Dumai waters reflecting the port, estuary, and industrial areas, using a purposive sampling method. The proc…
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- 1804111479
Uji Fitokimia Dan Aktivitas Antibakteri Ekstrak Daun Mangrove Lumnitzera Race…
This study was conducted to identify the content of secondary metabolite compounds in the leaf extract of Lumnitzera racemosa, which has potential as a natural antibacterial agent. Leaf samples were collected from the mangrove area of Pecinta Alam Bahari (PAB) Dumai City and extracted using 96% ethanol through a maceration method. Phytochemical tests were conducted qualitatively on seven groups…
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- 2104112820
Sebaran Bahan Organik Pada Sedimen Di Muara Sungai Bukit Batu Kabupaten Bengk…
The Bukit Batu River estuary in Bengkalis Regency is a wood cutting litter disposal area, a transportation route for timber-carrying barges and surrounding human activities, which has the potential to increase the content of organic matter in sediments. This research aims to determine the content, type of sediment fraction, distribution of organic matter in sediments and the relationship betwee…
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- 2104113709
Jenis Dan Kelimpahan Mikroplastik Pada Lokan (Geloina Erosa) Di Ekosistem Man…
Penelitian ini dilaksanakan pada bulan Desember 2024 sampai dengan bulan Februari 2025 di Desa Kedabu, Kabupaten Kepulauan Meranti, yang berbatasan langsung dengan Selat Malaka dan rentan terhadap pencemaran laut. Lokan (Geloina erosa) digunakan sebagai bioindikator untuk mengkaji jenis dan kandungan mikroplastik di ekosistem mangrove. Tujuan dari penelitian adalah menganalisis perbedaan kelimp…
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- 2104110812
Prevalensi Penyakit Karang Keras (Scleractinia) Di Perairan Pulau Pagang, Pro…
Coral reefs are ecosystems that provide habitat for many marine organisms, but threatened by degradation due to coral diseases. This study aims to identify the coral reef cover as well as the types and prevalence of hard coral (Scleractinia) diseases in the waters of Pagang Island. The research was conducted from February to May 2025 using the Underwater Photo Transect method to assess coral co…
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- 2104136280
Potensi Bakteri Fotosintetik Laut Dan Ekstrak Biopigmen Sebagai Agen Antimikroba
This research aimed to evaluate the potential of marine photosynthetic bacteria (MPB) and their biopigment extracts as antimicrobial agents against two major aquatic pathogens, namely Aeromonas hydrophila and Staphylococcus aureus. Six MPB isolates were cultured and incubated to produce biopigments. Biopigments are natural pigments from microorganisms that may have antimicrobial and antioxidant…
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- 2104126060
Kelimpahan Dan Keanekaragaman Spons Di Pulau Pasumpahan Sumatera Barat
Sponges are the most primitive multicellular animals that live in various types of waters ranging from fresh, brackish and marine. Sponges live at the bottom of the water, usually embedding themselves in hard substrates such as rocks or corals and competing with other attached organisms for food space. The purpose of this study was to analyse the abundance and diversity and to determine the dif…
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- 2004113350
Struktur Populasi Lokan (Polymesoda Expansa) Di Ekosistem Mangrove Rehabilita…
Polymesoda expansa belongs to the class of Bivalves that are found in mangrove forests, their habitat is between mangrove roots on muddy substrates, sandy mud and mangrove litter. This study aims to determine the abundance of P. expansa in Anak Setatah Village, Kepulauan Meranti Regency, examine the size frequency distribution, and investigate the distribution pattern in the area. The study con…
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- 1904124972
Analisis Konsentrasi Logam Berat Pb Dan Cu Pada Avicennia Alba Di Pesisir Pan…
Coastal ecosystems play a crucial role in supporting biodiversity but are increasingly threatened by heavy metal pollution originating from industrial and domestic activities. The mangrove species A. alba possesses the ability to absorb heavy metals through phytoremediation processes, making it a promising bioindicator of environmental contamination. This study aimed to analyze the concentratio…
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- 2104111022
Pengaruh Umpan Berbeda Terhadap Hasil Tangkapan Bubu Payung Di Perairan Sunga…
This study aims to determine the effect of using different types of bait on the catch results of umbrella traps (bubu payung) in the Kampar River, Kuok Village. The research was conducted over a period of 10 consecutive days using three types of bait: coconut pulp (ampas kelapa), rice bran (dedak padi), dan oil palm fruit waste (berondolan sawit),. The research method used was a field experime…
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- 1804124858
Kandungan Logam Berat Pb, Cu, Dan Zn Pada Lokan (Geloina Erosa) Dan Siput Sed…
Industrial and shipping activities in West Dumai pose a risk of heavy metal contamination in coastal waters, potentially leading to bioaccumulation in organisms such as Geloina erosa and Cerithidea obtusa. This study aimed to determine the accumulation of lead (Pb), copper (Cu), and zinc (Zn) in the soft tissues of both species and to compare the concentrations between species and sampling stat…
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- 2104113944
Analisis Genangan Rob Akibat Kenaikan Muka Air Laut Di Kota Padang Provinsi S…
Coastal areas have high potential for natural resources, but the intensity of their utilization often leads to physical environmental changes. One of the significant impacts is land subsidence and sea level rise, which trigger tidal flooding (known as rob floods). This study aims to determine the rate of sea level rise based on tidal data analysis from 2015 to 2024, and to predict inundation ar…
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- 2004113332
Potensi Stok Dan Serapan Karbon Pada Mangrove Di Desa Penempul, Kecamatan Sun…
Global warming is caused by increasing greenhouse gas emissions, particularly CO₂, and can be controlled through carbon sequestration by vegetation, including mangrove trees. The study was conducted in January-February 2025 in the mangrove area of Penempul Village, Sungai Sembilan District, Dumai City, Riau Province, with the aim of determining density in relation to biomass, carbon stock, an…
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- 2104112821
Karya Umum 
Filsafat 
Agama 
Ilmu-ilmu Sosial 
Bahasa 
Ilmu-ilmu Murni 
Ilmu-ilmu Terapan 
Kesenian, Hiburan, dan Olahraga 
Kesusastraan 
Geografi dan Sejarah