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THE STUDY OF CURRENT PATTERN, TIDES AND WAVES ON THE BEACHES VILLAGE PANGKE VILLAGERS MERAL KARIMUN DISTRICT RIAU ARCHIPELAGO PROVINCE Sherly Ayunarita; Elizal '; Musrifin Ghalib
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This research was conducted from February to March 2017 in Pelawan Beach of Riau Archipelago Province which aims to study the pattern of current, tides and wave characteristics of Pelawan Beach. The method used in this research was survey method. Determination of stations for data collection, in 3 stations with 3 sampling points. The results showed that the mean of current speed at high tide was 0,48 m/sec (Southeast and East) and mean of current speed at low tide 0,46 m/sec (West and Northwest). The tide in this area is mixed tide type with dominant of semi-diurnal, which occurs twice of high tide and twice of low tide in a day. Characteristics of the waves ( height, period, length and slope) is plunging and formed beach type. The depth of the waters is sloping and shallow, ranges from 1,1 to 2,0 m. Current and wave conditions in Pelawan Beach waters are safe for coastal activity around Pelawan Beach.Keywords : Current, Tides, Wave, Pelawan Beach
INFLUENCE OF DIFFERENT EXTRAJOSS CONCENTRATIONS OF GRANTING ON MEDIA CULTURE AGAINST THE RATE OF POPULATION GROWTH OF ROTIFER (B. plicatilis) Raja Yogi Prayoga; Syafruddin Nasution; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This research was conducted in October to December 2016 at fish seed center Pengujan, Bintan, Riau Island. The purpose of research was to determine the best concentration of Extrajoss for improving the rate of population growth of B. plicatilis in media culture. Complete Random Design (CRD) was applied as a method at this study with 4 taraf treatments that is P0 media consists of 300 mg chicken manure, 7.5 mg TSP, 6 mg Urea, 0.45 g yeast Bread/3 liters of water (control), then for further media added P1 (0.30 g Extrajoss), P2 (0.40 g Extrajoss), and P3 (0.50 g Extrajoss) with 3 replicates and observation 2 times day. The results is there’s a population growth rate differences occurring B. plicatilis after being given by Extrajoss. The highest population density is obtained at the 6th day of observation in the media of P2 11.36 ind/ml, and the lowest population contained on media P3 Of 1.00 ind/ml, while the highest average growth rate was obtained at the treatment the P2 of 2.731 ind/ml and the lowest obtained on treatment of P3 of 1.257 ind/ml.Keywords: Brachionus plicatilis, Extrajoss, BBI Pengujan
ANALYSIS OF BIOMASS AND CARBON STOCK ON MANGROVE FOREST ECOSYTEM IN NORTH COASTAL AREA OF RUPAT ISLAND RIAU PROVINCE Muhammad Sofyan; Aras Mulyadi; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
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Analysis of biomass and carbon stock on mangrove forest ecosytem in coastal area of North Rupat Riau Province has been conducted in January 2016. The method used in this study is a survey method with purposive sampling technique. The study showed that the potential mangrove biomass was directly proportional to mangrove carbon stocks. The average yield of biomass, carbon stocks of soil organic carbon and CO2 sequestration on mangrove forest was reserves amounted to 68,64 tons/ha , 904,75 tons/ha and 251,39 tons/ha, while the average yield of total carbon stocks was 973,31 tons/ha.Keyword: Rupat, Mangrove, Biomass, Carbon,
Life pattern of gastropods on breakwater and sandy beach ecosystem in water conservation area pariaman city west sumatra province Romanta Andrianus Tamba; Afrizal Tanjung; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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The research was carried out on the breakwater rocks in Water Conservation AreaPariaman West Sumatra Province in May 2013. The goal in conducting this study is tofind out how to survive gastropods in breakwater and sandy beach ecosystems areconstantly subjected to pressure waves. The method used was a survey method thatdirectly observe the behavior and movement of gastropods.There are 5 types of gastropods which have distinctive way of life to survive inthe face of pressure waves. Gastropods movement in the face of pressure waves in thesubmerged breakwater when high tide and exposed to the atmosphere when the low tidesas well as having an active movement, slow and settled. Life pattern gastropods in thesandy habitat gastropods will be attached to rock fragments and other fossil biota. Therewas slow movement that occurs when the wave came. Human impact on the gastropodswill always avoided by attaching themselves to the substrate tightly, closing their shellimmediately and move quickly. Gastropods movement in rock breakwater depends on thecause as something approaching movement (humans and other organisms), exposure tofree air (drought) and the most important is the availability of food.Keywords: Gastropods, survive, breakwaters, pressure waves, West Sumatera
STUDY ON THE SUSPENDED SOLIDS IN THE WEST COASTAL WATERS OF BENGKALIS Arif Teguh Satria; Rifardi '; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This study was carried out in May 2012. It aimed to find out on the stageextent of suspended solid in the west coastal waters of Bengkalis, in Riauprovince. This study used survey method and van Dorn sampler to collect thewater samples at 7 stations of the study area. The National Standard Method ofIndonesia for suspended solid analysis was used to deal with the main goal of thestudy. The result showed that the average stage of suspended solid was differentfor all stations. The considerable one was found in the station 4 comparing to theother stations. It caused station 4 was located at the confluence of the tidal currentpatterns come from the Malacca Strait low tide that come with the current of theriver around the west coastal water of Bengkalis.Key word : Suspended Solids, Water Of Bengkalis
Vertical Distribution of Sediment in the Waters of Bengkalis Strait Bengkalis Regency, Riau Province Dedek Susanto; Rifardi '; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This research was conducted in January 2015 with the aim to determine the characteristics of the sediment vertically in Bengkalis Strait. This research used survey method which divided into 7 stations. Sediment samples were taken by using gravity cores. Analysis of the sediment was carried by the size of the analytical method and the drying method.The results showed that sediments in the location was dominated by sand fraction, then mud and gravel fractions. The result of Sediment grain size analysis showed that Bengkalis Strait have characteristics of coarse sand, medium sand, fine sand, very fine sand, silt and medium coarse silt with sorting coefficient consists of well sorted, moderately well sorted, moderately sorted, sorted pooly and very pooly sorted. The distribution of sediment was very fine skewed, fine skewed, near symmetrical, coarse and very coarse skewed. Common sediment characteristics between the station was also seen in the cluster analysis. The results of cluster analysis showed that the sediment grouped into five groups showing clearly different in the characteristics of the sediment between the stations in this area.Keywords: Vertical Distribution, Sediment, Bengkalis Strait, characteristics
The Association of Gastropods and Seagrass in Coastal Waters of Beruk Island of North Rupat of Riau Province Darul Amin; Zulkifli '; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
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This study was conducted in July 2013 in the coastal waters of Beruk Island, Riau. This study was aimed to describe the species composition, distribution, density of seagrass and gastropods, its was also directed to know the distribution of gastropods based on the distribution of seagrass. The survey methods was used in this study. The results showed that there were 279 individuals of gastropod. Those consisted of six species, i.e. Strombus urceus, Ellobium sp, Nerita costata, Conus nobilis, Littorina sp, and Gibbula ardens. There were two seagrass species used as habitat by gastropod, i.e. Enhalus acoroides and Halophila ovalis. Distribution patterns of gastropods in Beruk Island were generally uniform, and varied at each station. The analysis showed that C. nobilis found at all stations, this indicated that these waters were suitable for the survival of C. nobilis, as well as the seagrass species of E. acoroides was also found in all stations.Keywords: Asosiasi, Gastropoda, Padang Lamun, Pulau Beruk
THE DISTRIBUTION OF SCALLOP SEASHELL (GELOINA COAXANS) IN PANIPAHAN VILLAGE PASIR LIMAU KAPAS DISTRICT ROKAN HILIR REGENCY RIAU PROVINCE Dedi setiawan; Afrizal Tanjung; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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The research was conducted on june 2013 in Panipahan village Pasir Limau Kapasdistrict Rokan Hilir Regency Riau Province. The aim is to find out the distibutionof scallop seashell (Geloina coaxans) by counting its abundance, attendancefrequency, and morisita distribution index. The survey method was used in thisresearch where the location condivided into 3 stations.Panipahan village waters area has muddy sand substrate. Scallop seashell(Geloina coaxans) were found 16 individu at station 1, 2 individu at station 2, and5 individu at station 3. Morisita distribution index showed that the scallop seashell(Geloina coaxans) in this area belonging to clustered category.Keyword : Geloina coaxans, Distibution, Abundance.
SURFACE SEDIMENT COMPOSITION OF WESTERN COAST OF RUPAT STRAIT RIAU PROVINCE Wahyu Novra Wanda; Rifardi '; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
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ABSTRAKThe research was conducted in May 2014, in the western part of the Rupat Strait. The aim of study was to determine the sediment material horizontally. This samples were taken using Eckman Grab from 9 sampling points. The analysis of the organic content in the sediment was also done.The results showed that the composition of the sediment in the western part of the Strait Rupat composed of lithogenous (rocks, mica, quartz ) and biogenous ( litter and Foraminifera). Lithogenous composition of rocks dominate waters and existede evenly at each sampling point. The highest percentage found in a location close to the mainland, this was suggested that the materials carried by the tide of Malacca and ebb currents of the Sungai Masjid River piled around this sampling point. In addition, the type of rock could have also come from erosion and anthropogenic activities in water around the edge.The organic matter content of sediment was highest at the sampling point close to the mangrove area. This was due to getting the supplay of organic material from the mangrove areas.Keywords: Composition, Tidal Currents, Sediment, Rupat Strait, Mangrove
Struktur Komunitas Makrozoobentos di Daerah Padang Lamun Muara Sungai Riau Kota Tanjungpinang Provinsi Kepulauan Riau Ilham Ilahi; Aras Mulyadi; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This research was conducted in June 2013 at Riau River Estuary inTanjungpinang City Riau Islands Province. This research aimed to find out themacrozoobenthos community structure and its relationship to seagrass vegetation.The method on the research was survey method. The existence of macrozoobenthosin this area showed the dynamic symbiosis among seagrass and marine organisms.The results also showed seagrass ecosystem had the high potential to be managed andused by communities and also increasing the fisheries productivity on coastal area.Species composition of macrozoobenthos in the area consisted of 8 species, i.e.Strombus sp, Cerithidea quadrata, Pina bicolor, Anadara sp, Anadara inflata,Atactodea striata, Asteroidea sp and Diadema sitosum. Two species of seagrassvegetation were found in this area, those were Enhalus acoroides, and Halophilaovalis. T-test analysis showed that the average of macrozoobenthos abundance oneach station differed unsignificantly (p>0,05). The regression analysis showed thatrelationship among seagrass vegetation diversity and macrozoobenthos abundancewas at r=0,35.Keywords: Riau River, Macrozoobenthos, Seagrass, Symbiont