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Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan
Published by Universitas Riau
ISSN : -     EISSN : -     DOI : -
Core Subject : Science,
Earth & Planetary Sciences
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Articles 2,919 Documents
 58   59   60   61   62 
Periphyton’s Chlorophyll-a Concentration in the Glass Substrate placed in the Salo River, Salo District, Kampar Regency Rati Muspa; Asmika H Simarmata; Madju Siagian
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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Abstract

Periphyton is one of microorganisms that serve as primary producer in the aquatic environment. The periphyton contain Chlorophyll-a that is used for photosynthesis activity. To understand the concentration of Chlorophyll-a in glass substrate the Salo River, a study has been carried out in April-May 2015. The Chlorophyll-a data are used as a basis to calculate the primary productivity in the Salo River. There were 3 stations, in each station the water and periphyton were sampled once/week, for a 4 weeks period. The number of glass sampled in each station is following Berkman and Canova 2007, there are 30, 15 and 9 pieces in Stations 1, Stations 2 and Stations 3 respectively. The periphyton samples are brushed from the surface of glass substrate (10 cm x 3 cm). The chlorophyll-a concentration in the glass substrate ranged from 2.574 mg/m2 – 5.514 mg/m2. The chlorophyll-a concentration indicates that the trophic status of the Salo River is oligotrophic.Keywords : Salo River, Periphyton, glass substrate, chlorophyll-a
Application Palm Oil Waste by Different Concentrate of Gill Morphology Damage and Survival Rate of Snake Skin Gourami (Trichogaster trichopterus Blkr) Yusron Al Anshory Harahap; Saberina Hasibuan; Niken Ayu Pamukas
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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Abstract

The research was conducted from Desember 2014 to January 2015 at Water quality Management laboratory Fisheris and Marine Science Faqulty of Riau University. The aim of the research was to investigate the effect Palm oil waste by different concentrate of damage gill and survival rate of snake skin gourami (Trichogaster trichopterus Blkr). Experimental method was applied in the research with five treatments and three replications. The treatment in the research was application palm oil waste with concentration of P0 : Without palm oil waste (control), P1: 1,286 ml/L, P2: 12,86 ml/L, P3: 25,72 ml/L and P4: 38,58 ml/L. The result showed the change of gill morphology structure of snake skin gourami (Trichogaster trichopterus Blkr). Changing on gill morphology showed the damage using palm oil waste 1,286 ml/L by survival rate 46,6 %. Changing on gill morphology structure indicate the damage is begun from hipertropy, poliferasi sel, hyperplasia, degenerasy and nekrosis. Meanwhile supreme gill morphology damage is occured on application palm oil waste 38,58 ml/L and the lowest survival rate of 26, 6%.Keyword : Tricogaster trichopterus, Palm oil waste, hypertrofi, hyperplasia, nekrosis, degeneracy
Types and Abundance of Periphyton in The Ceramic Substrate Placed in The Salo River, Salo District, Kampar Regency Juliana Ivana Siregar; Clemens Sihotang; Asmika Harnalin Simarmata
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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Abstract

Periphyton is a sessile microscopic organism attach on certain substrate. Research aims to determine the type and abundance of periphyton on ceramic substrate has been carried out in April-May 2015 in the Salo River. There are 3 stations (S1, S2 and S3) for placing the ceramic substrate and for taking water samples. Samplings are conducted once/week for a 4 weeks period. The periphyton samples are brushed from the surface of ceramic substrate (8 cm x 3 cm). The number of ceramic sampled in each station is 10, 6 and 3 pieces in S1, S2 and S3 respectively. Results shown that there are 54 types of periphyton present and they are belonged to 5 classes, namely Bacillariophyceae (36 species), Cyanophyceae (8 species), Chlorophyceae (6 species), Dynophyceae (1 spesies), and Xanthophyceae (3 species). The abundance of periphyton in the ceramic substrate placed in the S1, S2 and S3 is significantly different, there were 9,169 cell/cm2 ; 22,002 cell/cm2 and 67,913 cell/cm2 respectively.Keywords : Salo River, periphyton, ceramic substrate, type and abundance
Use of fermented rubber seed (Havea bransiliesis) in diets on growth and survival rate of Nile tilapia BEST (Oreochromis niloticus) fingerlings Rudy Agam; Indra Suharman; Nur Asiah
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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Abstract

The research was conducted for 56 days from 09 April to 04 June 2015. Theaim of this research was to find out response of Nile tilapia BEST (Oreochromisniloticus) fingerling on the use of fermented rubber seed in diets. The methods usedin this research was an experimental method and Completely randomized design onefactor with 4 treatments. The fish used in this research with size 2,54 - 2,88 gr asmuch as 400 fish. Fish were reared in 1x1x1 m3 in cage with stocking density of20/cage. Feeding trials were replacing with palm kernel cake with rubber seedfermentation applied to 0, 25, 35 and 45% for 25% protein content.The result showed that a diets containing 45% fermented rubber seed mealand 55% palm kernel cake (P3) support a good specific growth rate (3,67%/day), feedefficiency (29.36%) and protein retention (26,54%). Survival rate of fish was high(96,7 – 98,3%). It this concluded that up to 55% palm kernel cake can be substitutedwith fermented rubber sedd meal in the diets for Nile tilapia BEST.Keyword: Oreochromis niloticus, fermented rubber seed, palm kernel cake,substitution, diets
Study of Periphyton on Glass Substrates in Sago River Pekanbaru Prian Mintaito Simangunsong; Madju Siagian; Asmika Harnalin Simarmata
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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Abstract

Periphyton is a group of microorganism that grow in some natural substrates such as rock, wood, plants and aquatic animals.A research aims to understand the type and abundance of periphyton in the Sago River has been carried out in April-May 2015. Samples were taken from three station, once/ week for a 4 weeks period. Type of periphyton was identified based on Prescot (1974), and Yunfang (1995). Result shown that there are 39 types of periphyton and they are belonged to 8 classes, namely Bacillariophyceae (13 species), benthic Crustacean (1 species), Chlorophyceae (6 species), Cyanophyceae (8species), Cryptophyceae (3species), Dinophyceae (4species), Euglenophyceae (2 species) and Xanthophyceae (2 species).The abudance of periphyton in the all station Sago River is significantly different, there were S1 (7,533cells/cm2), S2 (10,206cells /cm2), and S3 (13,277cells /cm2). The abundance of periphyton in the Sago River in general was around 7,533– 13,277 cells /cm2.Keywords: Sago River, Periphyton, Glass Substrates
Fertilize of Peat Soil with Phosphat Fertilizer in Different Grade Based on Parameter of Physical Chemistry Vina Damayanti; Saberina Hasibuan; Syafriadiman '
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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Abstract

The research was conducted from February-April 2015 in the Laboratory Aquaculture Environmental Quality, Faculty of Fisheries and Marine Sciences University of Riau Pekanbaru. The method used in this study is an experimental method using a Complete Random Design (CRD) with 1 factor, 5 treatments and 3 replications. The treatment used in this experiment is P0:Without application of fertilizer (control), P1:grade N-P-K (20-10-0), P2:grade N-P-K (20-20-0), P3:grade N-P-K (20-30-0) and P4:grade N-P-K (20-40-0). Result showed that the given of phosphat fertilizer with different grade effected to some soil parameter quality. For parameter pH and P-available soil the best treatments is grade N-P-K:20-40-0 (P4). For N-total and C/N ratio the best treatment is grade N-P-K:20-10-0 (P1). For soil organic matter content the best treatment is control (P0). For the parameters of color, texture, bulk density and cation exchange capacity of phosphorus fertilizer with different grade is no effected. Results of measurements of water quality parameters during research that ranged is for pH of water from 3,75 to 6,27 and temperature of water that range from 27-310C. The range of water pH and temperature is still quite good for aquatic organisms .Keyword : phosphat fertilizer, peat soil, soil physical chemistry parameter
The effectiveness of EM4 and Acetic Acid activator addition in processing aquaculture waste into liquid fertilizer for the growth of Azolla microphylla biomass Pintami '; M. Hasbi; Budijono '
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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Abstract

Aquaculture waste rich in organic materials and it is potencial as basic materials for liquid fertilizer. To increase the N, P and K content, addition of EM4 and acetic acid activators are needed. To understand the effectiveness of the activators in increasing the N, P and K content, a study has been conducted from March to April 2015. There were 5 treatments applied, there was 10 L of pure waste (Po/ control) and 10 L waste that were added with 100 ml EM4 + 1 kg rice bran + 100 gr sugar(P1); 350 ml acetic acid 95% +1 kg rice bran + 100 gr sugar (P2); 100 ml EM4 (P3) and 350 ml acetic acid 95% (P4). Samples were fermented for 12 days. Results shown that the highest N (12,718.34 mg/L) was in the P3, the highest P (70.14 mg/L) was in the P1 and the highest K (11.49 mg/l) was in the P4. The values of organic materials content in the fertilizer produced in this research, however, was lower than that of the standard values mentioned in the SNI No.70/Permentan/SR 140/2011 and thus indicates that the activator is not significantly increase the organic materials in the aquaculture waste.Keyword: aquaculture waste, Liquid Fertilizer, EM4, acetic acid
Density and Distribution of Seagrass in Beruk Island Coastal Waters Rupat Island of Bengkalis Regency Riau Province Hara, Filio; Mulyadi, Aras; ', Zulkifli
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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Abstract

Seagrasses are plants adapted to live fully in the marine environment. Seagrass plays an important role in coastal areas due to critical habitat for many kinds of marine animals such as fish, molluscs, crustaceans, echinoderms. The research was conducted inJanuary 2015 inBeruk Island Waters in order to know the different of seagrass distribution and density in northern and southern partsof Beruk Island. The method used was line transect and applyingsix stations, namely stations I, II and III in the southern part of Beruk Island and stations IV, V and VI in the northern area of Beruk Island. The results obtained II seagrass species, i.e. Enhalus acoroides and Halophila ovalis.The pattern of distribution of seagrass at southern of Beruk Island was randomized and E. acoroideswas found as the most dominant species. However,the distribution  in northern of Beruk Island was cluster at station IV and V and randomized at station VI with the dominant species wasH. ovalis. The highest E. acoroides density was found in southern of Beruk Island at station II with the total density of 80 individuals/m2.The highest H. ovalis density in northern partof Beruk Island was at station V with the total density of40 individuals/m2. Key Words : Seagrass, Distribution, Density, Beruk Island, Bengkalis
Community Stucture of Epiphytic Diatoms on Seagrass Leaves of Enhalus acoroides in Jago-Jago Coastal Waters of Tapanuli Tengah North Sumatera Province Bornok Silalahi; Sofyan Husein Siregar; Zulkifli '
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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Abstract

This research was conducted in March 2015 in the coastal waters of the village of Jago-Jago Central Tapanuli, North Sumatra. The aim of this research was to know the community structure of epiphytic diatom which include the type and abundance, diversity, uniformity and epiphytic diatom dominance contained in the leaves of Enhalus acoroides and to know the characteristics of the diatom habitat includes water quality parameters that affect the existence of epiphytic diatoms. Data were obtained by direct observation, measurement and sampling in the field followed by the identification of the type (species) of epiphytic diatom at the Marine Biological Laboratory, University of Riau. The results showed Total epiphytic diatoms found were 30 genera. The highest abundance of diatoms were Nitzschia and Skeletonoma that were recorded in station III. This genus has high adaptability pitch on the environment so that it can grow and develop properly. Diatom abundance of epiphytes on the leave base, middle and tip of the station I ranged from 31.093 to 71.035 ind/cm2, in the station II ranged from 59.093 to 92.855 ind/cm2 and at stations III ranged from 33.562 to 82.460 ind/cm2. The highest abundance of epiphytic diatoms was found in station II, ie 75.013 ind/cm2, while the lowest abundance was found in station I, 48.935 ind/cm2. The value of diversity index (H '), dominance index (D) and uniformity index (E), concluded that quality was diversity of species were, no species dominated and water quality was still in favorable condition to support the life of epiphytic diatoms.Key Words: Community Structure, Epiphytic Diatoms, Enhalus acoroides, TapanuliTengah
Community Stucture of Epiphytic Diatoms on Seagrass Leaves of Enhalus acoroides in Jago-Jago Coastal Waters of Tapanuli Tengah North Sumatera Province Bornok Silalahi; Sofyan Husein Siregar; Zulkifli '
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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Abstract

This research was conducted in March 2015 in the coastal waters of the village of Jago-Jago Central Tapanuli, North Sumatra. The aim of this research was to know the community structure of epiphytic diatom which include the type and abundance, diversity, uniformity and epiphytic diatom dominance contained in the leaves of Enhalus acoroides and to know the characteristics of the diatom habitat includes water quality parameters that affect the existence of epiphytic diatoms. Data were obtained by direct observation, measurement and sampling in the field followed by the identification of the type (species) of epiphytic diatom at the Marine Biological Laboratory, University of Riau. The results showed Total epiphytic diatoms found were 30 genera. The highest abundance of diatoms were Nitzschia and Skeletonoma that were recorded in station III. This genus has high adaptability pitch on the environment so that it can grow and develop properly. Diatom abundance of epiphytes on the leave base, middle and tip of the station I ranged from 31.093 to 71.035 ind/cm2, in the station II ranged from 59.093 to 92.855 ind/cm2 and at stations III ranged from 33.562 to 82.460 ind/cm2. The highest abundance of epiphytic diatoms was found in station II, ie 75.013 ind/cm2, while the lowest abundance was found in station I, 48.935 ind/cm2. The value of diversity index (H '), dominance index (D) and uniformity index (E), concluded that quality was diversity of species were, no species dominated and water quality was still in favorable condition to support the life of epiphytic diatoms.Key Words: Community Structure, Epiphytic Diatoms, Enhalus acoroides, TapanuliTengah

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