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INDONESIA
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan
Published by Universitas Riau
ISSN : -     EISSN : -     DOI : -
Core Subject : Science,
Earth & Planetary Sciences
Arjuna Subject : -
Articles 2,919 Documents
 69   70   71   72   73 
The Maintenance of River Catfish (Mystus nemurus CV) in Recirculation System and Biofloc Combination With Diferently Density of Basil Plant (Ocimum sanctum L.) Yudistira '; Mulyadi '; Iskandar Putra
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

The research was conducted from 20 August to 20 September of 2014 at the Breeding Unit Laboratory, Faculty of Fisheries and Marine Sciences University of Riau, Pekanbaru. This study aims to determine the growth and survival rate of River Catfish (Mystus nemurus CV) reared in resisculation system and biofloc combination with diferently density of basil plant (Ocimum santum L.) using the experimental method Completelly Randomized Design (CRD) with one factor, three treatments and three replication which had different level comparison of basil plant density, there are: P1 (density of 30 stems of basil plants), P2 (density of 45 stems of basil plants) and P3 (density of 60 stems of basil plants). The results showed that the best treatment is P3 treatment with the absolute weight growth of 8.3 g, absolute length growth 9 cm, daily weight growth rate of 5.03% and the survival rate of 95%. Water quality parameters during recorded research period are ammonia (NH3) from 0.30 to 0.50 mg/L, nitrite (NO2) from 0.06 to 0.25 mg/L, nitrate (NO3) ranged from 0.13 to 1.20 mg/L, temperature 27-30oC, 5-6 OF pH, dysolved ovygen (DO) of 3.0 to 3.4 mg/L and CO2 of 6.89-10.58 mg/L.Keywords: River catfish (Mystus nemurus CV) Biofloc, Recirculation
The Concentrations and Distributions of Heavy Metals Pb, Cu and Zn in the Sea Water and Sediment in Estuary Area of Dumai, Riau Province. Nurhuda, Ahmad; Amin, Bintal; ', Mubarak
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

The research of heavy metal (Pb, Cu, Zn) has been conducted in June 2015in the estuary area of Dumai, Riau Province. The samples of water and sedimentwere taken in difference area, consisting of 15 stations by purposive samplingmethod. The analysis showed heavy metal contents were as followes Pb 0.051 –0.061 mg/l, Cu 0.038 – 0.047 mg/l, and Zn 0.182 – 0.243 mg/l respectively. Theheavy metal contents in water has exceeded the quality standard ofKep.MENLH/51/2004 on sea water quality standard for marine organism. On theother hand, the sediment analysis showed heavy metal contents were Pb 2.700 –3.500 μg/g, Cu 2.522 – 6.97 μg/g and Zn 15.977 – 18.059 μg/g. According to thisresearch it was concluded that the estuary area of Dumai has been contaminated.Key words : Heavy metal, seawater, sediment, estuary area of Dumai.
Tidal Dynamics and Climate Change in Coastal Waters of Pangkalan Sesai Village, West Dumai District, Riau Province Febrian, Andi; Samiaji, Joko; Ghalib, Musrifin
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

The research was conducted from December 2014 to February 2015, in the coastal waters of Dumai, Riau Province. The research aimed to determine the tidal dynamics in relation to climate change. The research used survey method by performing 4 times periodically sampling. The result of measurement was then compared to Hydro-oceanographic Service Data.The results showed that tidal pattern in coastal waters of Dumai during a period of 3 months was classified into Mixed Semi-Diurnal Tides which occured 2 low tides and 2 high tides for 24 hours. Observations I-IV showed the tidal patterns were different because of different patterns of surface currents. Data of tidal pattern were compared to data obtained from Hydro-oceanographic data 3 years earlier showed a difference. Judging from the results of research that has been made known that there has been a rise in sea level if compared to data obtained from Hydro-oceanographic data 3 and 1 year before, namely an increase ranging between 19.5 to 22 cm. While the comparison of the data with the previous 2 years decreased, with a value of 45.5 cm. This means sea level in the study area has increased for 3 and 1 year. It was predicted that the existence of climate change has the effect of tidal conditions in these waters.Keyword : tidal pattern, climate change, Pangkalan Sesai, Dumai
THE STUCTURE OF ZOOPLANKTON COMMUNITY IN MANGROVE AREA OF THE DUMAI CITY OF RIAU PROVINCE Ardi Gunawan Siregar; Joko Samiaji; Sofyan H. Siregar
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This research was conducted in August to October 2015 in the mangrove area of Dumai city of Riau Province with the aim to determine the structure of zooplankton community in form of genera and differences in the abudance of among research stations. The zooplakton sample were collected in the field and identified in the Marine Biological Laboratory of Marine Science Department, Faculty of Fisheries and Marine Sciences, University of Riau. The results showed that the zooplankton recorded consited of 8 genera i. e., Monhystera, Chromadora, Capitella, Lepadella, Monostyla, Dinizia, Mysis and Litonotus. Zooplankton average value was the highest with 936,5 ind/l and the lowest 416 ind/l. The values of diversity index (H’), dominance (D) and diversity (E) indicated that the condition of coastal waters of mangrove area of Dumai city experienced a moderate level of pollution, there was zooplankton dominance, uniformity in unbalanced so that evently not spread. Based on the calculation of the the abundance of zooplankton Anova test did not differ significantly between stations.Keyword: Coastal Waters, Dumai, Community Structure, Zooplankton
BIOMASS AND DENSITY OF SEAGRASS Thalassia hemprichii FROM NIRWANA BEACH WEST SUMATRA Ayu Agustina; Zulkifli '; Joko Samiaji
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Research has been conducted in the month of October-November 2015 at Nirwana Beach of West Sumatra. The aim of this study was to determine the density and biomass and habitat characteristics determine the effect of the density and biomass of seagrass Thalassia hemprichii in waters Nirwana Beach West Sumatra. Results showed the highest density of seagrass Thalassia hemprichii at Nirwana Beach West Sumatra was located on the second station in the amount of 193.98 stands/m2 and lowest density was found on the third station at 99.99 stands/m2 . Thalassia hemprichii biomass was highest at station II transect 1 with a dry weight of 13.452 g/m2 , the lowest of seagrass biomass was at transect III station 3 with a dry weight of 7.512 g/m2 .Keywords : Thalassia hemprichii , density and biomass, Nirwana Beach.
CONTAMINATION AND CHARACTERISTICS OF VISUAL SOLID WASTE IN COASTAL AMPALU DISTRICT NORTH PARIAMAN PARIAMAN CITY WEST SUMATRA Devid Joehari; Sofyan Husein Siregar; Yusni Ikhwan Siregar
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
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This research was conducted in Agust 2015 at coastal Ampalu district NorthPariaman Pariaman City West Sumatra Province. T he purpose of this study was todetermine the level of contamination and the characteristics of solid waste. Thesurvey methode was applied in this research whicht are 2 station observation alongthe coast Ampalu then be calculated and weighed according to characteristic solidwaste.The results of research shaun that the solid waste in coastal Ampalu wascategorised in to lees contaminated (category B) and fairly contaminated (categoryC). Where the at station 1 lees contaminated, and then Station 2 is relative fairlycontaminated of visually, that generally solid waste consisted of plastics, paper,rubber, foam, jute sacks, leaves, and small pieces of wood. All Solid wasteindetyfield originated from land base waste.Key words : Contamination, characteristics, solid waste, coastal Ampalu
The Relations Between the Concentration of Nitrate and Phosphate to Abundance of Dinoflagellates in Enhalus acoroides Beds in Sungai Enam Coastal Waters of Bintan Regency of Riau Islands Province Dwi Putri Pratiwi; Irvina Nurrachmi; Thamrin '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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The research was conducted in June 2015 in Sungai Enam coast of Bintan Island, with the aims to know the difference abundance of dinoflagellates in every station and to knows the relations between nitrate concentration and phosphate concentration to the abundance of dinoflagellates in seagrass beds. The samples were taken from 3 stations with 3 sampling points. The result showed that the average of nitrate concentration was 0.0029 mg/l and the average of phosphate concentration was 0.1219 mg/l. This research identified 10 species of dinoflagellates, with the highest abundance was found in station 1 (0.13 cells/cm2) and the lowest was found in station 2 (0.10 cells/cm2). The results of the simple linear regression of nitrate and phosphate concentration showed a positive relation with dinoflagellates abundance, that means if the concentration of nitrate and phosphate raising the dinoflagellates abundance was also increasing.Key words: nitrate, phosphate, Dinoflagellates, Sungai Enam Waters, Bintan
The Density and Sex Ratio of Cockle Shell (Anadara granosa) in Coastal Water of Panipahan, Pasir Limau Kapas District Hadi Sastranegara; Efriyeldi '; Yusni Ikhwan Siregar
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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A study on the density, sex ratio of cockles (A. granosa) was conducted in Panipahan coastal mud-flat during May to August 2015. Two zones of 100 m and 250 m from coast line were established. Each sampling zone were divided into 5 plots of 1 m2. Apparently average density of cockles ranged from 25.9 - 28.4 ind/m2. There was no significant differently of cockles density between zones (p>0.05). Sex-ratio male/female appeared 1:1.27.Keyword : Density, Sex Ratio, Anadara granosa and Panipahan
SPESIES COMPOSITION AND ABUNDANCE OF MARINE PHYTOPLANKTON OF DARUL AMAN WATER Putra, Ira; ', Zulkifli; Siregar, Sofyan Husein
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This research was conducted in Februari 2015 and was located at DarulAman waters. Samples were analyzed in the Biology Laboratory of Marine Science Department of Fisheries and Marine Science Faculty of Riau University. The aim of this study was to observe the phytoplankton communities. This research used survey method. The study found 25 species of phytoplankton, Compriting ofwere 16 species from Bacillariophyceae, 7 species from Dinophyceae, and 2 species from Cyanophyceae. Phytoplankton dominatingthe population was from group of Bacillariophyceae (Diatoms) 61%. The other groups comprising of Dinophyceae 29%, and Cyanophyceae 10%. Phytoplankton abundance varied from 266-339 ind/l, the higest value was in station 1 and the lowest value was in station 2. Phytoplankton community was dominated by the group of diatoms, such as Nitzschia sigma, Synnedra ulna, and Thallasiothrix delicatula.Keywords: Marine Phytoplankton, Bacillariophyceae, Marine of Riau
Analysis of Organic Matter in Sediments and Macrozoobenthos from Coastal Waters of Hurun Bay of Lampung Siregar, Jumahat; Nedi, Syahril; Mulyadi, Aras
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
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This study was conducted in July 2015 with the aim to observe the macrozoobenthospopulation and organic matter content in the sediment. The samples were collected from HurunBay in Lampung Province with using survey method. Samples were analyzed in the Laboratoryof Water Quality BBPPL Lampung and Chemistry Laboratory, Faculty of Fisheries and MarineSciences University of Riau. The study showed that the organic content in the sediment between22.88 - 54.91%, while the abundance of macrozoobenthos was between 20.29 - 66.67 ind / m2.Macrozoobenthos identified in Hurun Bay 8 species, 3 classes and 2 phylua. From the phylum ofMollusca there were Gastropod i.e. which had 5 species and from the classes of bivalves thestudy also found two species. From the phylum annelid there was one class, Polychaeta and onespecies, i.e. Nereis sp. The relationship between macrozoobenthos and organic content wasexpressed with the equation of Y = 9,411 + 0,6268X that the relationship of organic matter withmacrozoobenthos abundance was weak.Keywords: Lampung, sediment, organic, makrozoobenthos

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