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Karakteristik Habitat dan Populasi Kerang Bambu (Solen lamarckii) di Zona Intertidal Desa Teluk Lancar Kecamatan Bantan Kabupaten Bengkalis Ramadhan, Muhammad Farizqy; Nasution, Syafruddin; Efriyeldi, Efriyeldi
Jurnal Perikanan dan Kelautan Vol 22, No 1 (2017)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.22.1.36-43

Abstract

Kerang bambu merupakan salah satu jenis moluska dari famili solenidae yang mempunyainilai ekonomis. Penelitian ini dilaksanakan pada bulan Februari 2017 bertempatdi Pantai Desa Teluk Lancar Kecamatan Bantan Kabupaten Bengkalis. Penelitian inibertujuan untuk mengetahui karakteristik habitat, kelimpahan dan pola distribusi kerangbambu. Metode yang digunakan dalam penelitian ini adalah metode survei. Penentuanlokasi pengambilan sampel dilakukan secara purposive sampling. Pengukurankualitas perairan dilakukan secara in situ dan ex situ yang terdiri dari parameter fisikadan kimia perairan. Karakteristik habitat kerang bambu yaitu jenis substratnya pasirdengan klasifikasi pasir sangat halus. Bahan organik sedimen tergolong rendah dansangat rendah 0,907-1,749 %. Padatan tersuspensi tergolong sangat tinggi 223-1830mg/l. Parameter kualitas perairan masih mendukung untuk kehidupan kerang.Kelimpahan rata-rata adalah 0,88/m2, kelimpahan tertinggi terdapat di subzona 5(zona lower) atau surut terendah dan kelimpahan terendah pada subzona 3 (zona middle)atau zona tengah intertidal. Pola distribusi rata-rata bersifat mengelompok. Ukurankerang yang ditemukan memiliki panjang 45-93 mm dengan berat 1,91-9,67 g.
Distribution Pattern and Sex Ratio of Lokan Shellsfish (Batissa violacea) in the waters of the Padang Birik-birik Village, North Pariaman District, Pariaman City Adila, Melin; Tanjung, Afrizal; Efriyeldi, Efriyeldi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

ABSTRACT This research was conducted in January 2019 at the Padang Birik Village, North Pariaman.The purpose of this research was to determine the pattern of distribution, abundance, sex ratio and frequency of lokan shellfish (B. violacea) size. The methods of this research was the survey methods,where the research station consists of 3 stations that werestation 1 in the mangrove area of Padang Birik-birik Village, station 2 was located in the estuary area close to the beach of Padang Birik -birik Village, station 3 was located adjacent to the coastal residential area in the village of Padang Birik –birik.Analysis was carried out in the Marine Biology Laboratory, University of Riau. The results of this study are the distribution pattern in the mangrove ecosystem clustered and the distribution pattern in the residential area were evenly distributed. The highest abundance was found in the mangrove ecosystem and the lowest was in residential areas. Sex ratio are generally male and female are balanced (1: 1.02). The most commonly found class of shellfish size 38,5-49,5 mm.Keywords: Lokan shells (B. Violacea), distribution patterns, abundance, sex ratio, frequency of size
ANALYSIS OF OIL CONTENT IN SEDIMENTS AND RELATIONSHIP WITH MAKROZOOBENTHOS ABUNDANCE IN SUNGAI PAKNING WATERS OF BENGKALIS REGENCY RIAU PROVINCE Rosiana, Kenny; Amin, Bintal; Efriyeldi, Efriyeldi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

ABSTRACT           This research was conducted in January - February 2019. The purpose of this research was to analyze the oil consentration in sediments, species and abundance of macrozoobenthos, the relationship between the oil content in sediments and the abundance of macrozoobenthos. Four sampling stations with three replications in each station were surveyed. The results showed that the average oil consentration in sediments in the Stasions 1, 2 and 3 has exceeded the threshold level of the Department of Water Resources Quality Assurance / Quality Control Program which is> 1000 ppm which means that these stasions have been polluted by oil. Whilst at station 4 is still within safe limits.The types of macrozoobentos found in Sungai Pakning waters were Coenobita cavipes, Telescopium telescopium, Strigatella litterata, Cyclograpsus, Nassarius echinatus, Anadara granosa, Antoctodea, Littoraria scabra, Strigatella paupercula, Ancila, Cerithidea obtusa, and Nassarius olivaceus. The highest abundance was at Sei Selari port while the lowest abundance is around the tourist area of Pangkalan Jambi Mangrove Forest. Based on simple linear regression, the relationship between the oil content in sediment with the abundance of macrozoobentos y = 22.541-0.0191x with the coefficient of determination (R²) = 0.2437 and the value of the correlation coefficient (r) = 0.49. The value of r states a moderate relationship with a constant value b which is negative which indicated that the higher the oil content, the lower the macrozoobenthos abundance in sediment. Keyword: Sungai Pakning, Oil, Sediment, Macrozoobenthos
ANALYSIS DISTRIBUTION OF MANGROVES IN THE BANTAN DISTRICT, RIAU PROVINCE USING SATELLITE IMAGE DATA LANDSAT 8 S. Pane, Rolis; Mubarak, Mubarak; Efriyeldi, Efriyeldi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

ABSTRACTThis study aims to determine the distribution of mangroves and map the mangrove using satellite image data in the district of Bantan, Riau Province. Determination of the sampling location with purposive sampling with 3 station point, namely Jangkang Village, Selat Baru Village and Bantan Tengah Village, Bantan District. This research was carried out in April 2018 in Bantan District. Then analyzed in the Oceanographic Physics Laboratory Department of Marine Sciences, Riau University. The results of analysis of February 2018 landsat 8 image recording were 184.251 ha. The highest tree density in3 station points, namely Rhizophora apiculata, namely 500 ind/ha and the lowest tree density, Bruguiera gymnorrhizaand Xylocarpus granatum with 33.33 ind/ha. The highest seedling density wasRhizophora apiculata, wich is 2.000 ind/ha and the lowest density Bruguiera gymnorrhizawith 133.33 ind/ha. The number of mangrove species found were Rhizophora apiculata, Avicennia alba, Sonneratia ovata, Rhizophora mucronata, Xylocarpus granatum, and Bruguiera gymnorrhiza.      Keyword: image data, mangrove, Bantan District
Toxicity of Eucheuma cottonii seaweed extract with Methanol and N-Hexane solvents for Artemia salina larvae Kaharudin, Zakaria; Nurrachmi, Irvina; Efriyeldi, Efriyeldi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

Abstract Seaweeds are very popular in the world of commerce, in science known as algae. Algae consists of four classes: Rhodophyceae (Red Algae), Phaeophyceae (Brown Algae), Chlorophyceae (Green Algae), and Cyanophyceae (Green-blue algae). Seaweed contains secondary metabolite compounds in the form of alkaloids or flavonoids that are useful as medicines and other purposes such as cosmetics and other industries. Seaweed is known to be rich in essential nutrients, such as enzymes, nucleic acids, amino acids, minerals, trace elements and vitamins A, B, C, D, E and K so it is also known as traditional medicine for cough, asthma, bronchitis, tuberculosis, abdominal pain, fever and rheumatism. This research was conducted in February - March 2018 in Sugie Village, Karimun Regency, Riau Islands Province, which aims to produce seaweed extract E. cottonii using Methanol and N-Hexane solvent and knowing LC50 value of Seaweed extract E. cottonii. Data were obtained by using BSLT (Brine Shrimp Lethality Test) method. The results of the study showed that the extract obtained from 5 kg of seaweed (wet weight) as much as 513 mL of concentrated extract. Seaweed extract with type E. cottonii was toxic to test animal A. salina. The LC50 value of E. cottonii extract dissolved in methanol was 40.2438 ppm.Keywords: toxicity, Extract of Seaweed, Desa Sugi 
THE EFFECT OF DIFFERENT LIGHT COLORS ON THE BIOMASS GROWTH OF Spirulina platensis Hanryani, Putri; Efriyeldi, Efriyeldi; Effendi, Irwan
Asian Journal of Aquatic Sciences Vol 2 No 2 (2019)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (581.419 KB) | DOI: 10.31258/ajoas.2.2.132-137

Abstract

Spirulina is microalgae that spreads widely in nature and can be found in various types of environments, both in brackish, sea and fresh water. Spirulina is photoautotrophic, so it requires light as an energy source for cell growth and synthesis of various important substances involved in it. Lack of light can cause photosynthesis to not take place normally so that it will affect the growth of S. platensis. This study aims to determine the effect of different light colors on the biomass growth of S. platensis. This research was conducted from March to April 2019 at the Marine Microbiology Laboratory and the Marine Chemistry Laboratory, Faculty of Fisheries and Marine, Universitas Riau. The method used in this research was the experimental method. The study design used was a completely randomized design (CRD) with four treatments (red, yellow, blue and control colors) and three replications. The results showed that the light colors had a significant effect on the biomass growth of S. platensis. Yellow light gave the best biomass growth, followed by red and blue light.
DENSITY AND COVERAGE OF SEAGRASS ON DIFFERENT TYPE OF SEDIMENT AT PANDARATAN BEACH TAPANULI TENGAH REGENCY NORTH SUMATERA PROVINCE Lianov, Dea; Efriyeldi, Efriyeldi; Zulkifli, Zulkifli
Asian Journal of Aquatic Sciences Vol 2 No 2 (2019)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (580.956 KB) | DOI: 10.31258/ajoas.2.2.138-144

Abstract

Seagrass ecosystem is one of shallow sea ecosystems that plays an important role to maintain stability of the sea. Density and coverage of seagrass depend on characteristic of sediment, include mean size and the type of sediment. The purpose of this study was to find out how density and coverage of seagrass on different type of sediment at Pandaratan Beach Tapanuli Tengah Regency North Sumatera Province. This research was conducted in April 2019. From the results can be discovered that there are two species of seagrass that found in Pandaratan Beach, Cymodocea rotundata and Enhalus acoroides. In the type of muddy sand sediment has the heighest density of seagrass which is 309 ind/m2 and categorized into very tight. In the type of sandy gravel sediment has the lowest density of seagrass which is 49 ind/m2 and categorized into very rare. And in the type of gravely sand sediment has the density of seagrass that is 234 ind/m2 and categorized into very tight. In the type of muddy sand sediment has the heighest coverage of seagrass which is 50.18% and categorized into good. In the type of sandy gravel sediment has the lowest coverage which is 17.72%. And in the type of gravely sand sediment has the coverage of seagrass which is 26.95% and categorize into moderately.
SPECIES DIVERSITY AND DISTRIBUTION OF SPONGES IN THE COASTAL AREA OF KASIAK ISLAND PARIAMAN REGENCY SUMATERA BARAT PROVINCE Nasri Ananda, Nahdya; Efriyeldi, Efriyeldi; Thamrin, Thamrin
Asian Journal of Aquatic Sciences Vol 2 No 2 (2019)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (477.716 KB) | DOI: 10.31258/ajoas.2.2.162-169

Abstract

Sponges are the most primitive multicellular animals that live in various types of waters from freshwater, brackish and sea. Sponges live in bottom waters that typically stick themselves on hard substrate such as rock or coral and compete with other tacks organism to obtain a food hall. The research was conducted in Kasiak Island Pariaman regency West Sumatera in February-March 2019, aims to find outthe type, density, frequency of occurrence, diversity index, dominance index, the distribution pattern of sponge, To support the research data is also observed the characteristics of the environment such as water quality. The method used is survey method, where sampling using belt transect method performed on three stations. The research found 14 genus / species of sponge consisting of 11 families in island waters Kasiak with sponge density values obtained in each research station ranges from 1458-4208 ind / ha. The highest frequency of occurrence of the type Jaspis sp. with the frequency of occurrence of 100%. Diversity index values ranged from 1.8921 to 1.9488, dominance index value obtained was from 0.3163 to 0.3396, and the value of the distribution pattern of the sponge ranges from 0.2941 to 0.3015.
ABUNDANCE AND DISTRIBUTION OF BLOOD CLAMS (Anadara granosa) IN COASTAL WATERS OF MEKARBARU VILLAGE KEPULAUAN MERANTI Hendra; efriyeldi, Efriyeldi; Galib, Musrifin
Asian Journal of Aquatic Sciences Vol 3 No 1 (2020)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.3.1.11-19

Abstract

This research is expected to find out how abundance and distribution of blood clams (Anadara Granosa) in coastal waters of Mekarbaru village, Kepulauan Meranti District. In good conditions or during the season in a particular month there is more capture compared to when it is not in season. Analyze using descriptive analysis research methods using survey methods. The materials used in this study were blood clam samples (A.granosa), and aquades for tool rinsing. The results of this study can be concluded that the average abundance of blood clams of A. granosa in the coastal waters of Mekarbaru Village, Kepulauan Meranti District is different. The highest average blood clam abundance was found at station III which was 21.86 Ind / m2 and the lowest was at station II which was 19.63 Ind/m2. The size distribution of blood clams A. granosa can be seen that dominating is the size of <25 mm (small), while the size of 25-30 mm (Medium) is only found at each station. The abundance of small blood clams A. granosa is influenced by the content of sediment organic matter and water quality in the coastal waters of Mekarbaru Village, Kepulauan Meranti Regency.
MANGROVE FOREST EFFECT ON THE COASTLINE IN RANGSANG ISLAND RIAU PROVINCE Paulinus; Mubarak, Mubarak; efriyeldi, Efriyeldi
Asian Journal of Aquatic Sciences Vol 3 No 1 (2020)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.3.1.29-37

Abstract

The study was conducted in May-June 2019 on Rangsang Island. This study aims to determine the effect of mangrove forests on coastline found on the island of Rangsang in Riau Province. The sampling location was determined by purposive sampling, namely 3 station points, namely Segomeng Village, Tanjung Kedabu Village, and Sungai Gayung Kiri Village. Landsat image data analyzed at the Oceanographic Physics Laboratory of the Department of Marine Sciences, Faculty of Fisheries and Maritime Affairs, University of Riau. To find out the area of ​​mangroves using Landsad 5 TM satellite imagery and Landsat 8 OLI Tirs imagery and analyzed using Er Mapper Software, Envi 4.5 and Arcgis 10.3. Calculation of the structure of the mangrove community is carried out using the line plot plot method. The results of the analysis of the vast landsat image of mangroves in the coastal areas of Rangsang Island in 1997, 2002, 2007, 2013, 2019 were respectively 11,093 ha, 10,807 ha, 10,393 ha, 10,121 ha and 9,971 ha. Changes in the coastline indicate the occurrence of abrasion and accretion, where the highest abrasion occurs at station three with an average of -7.6 m/year and accretion occurs at station one with an average of 2.68 m / year. Mangrove density at station one is 2266.7 ind / ha and at station two that is 1466.7 ind / ha. Mangrove species found were Rhizophora apiculata, Rhizophora mucronata, Avicennia alba, Sonneratia ovata, Bruguiera gymnorrhiza, and Xylocarpus granatum.