Management of Marine Resources

Permanent URI for this collection

https://repository.unri.ac.id/handle/123456789/76

Browse

Now showing 1 - 20 of 47

Know the impact of Liquid Waste Disposal Water Quality River Tarai district of Kampar Regency Mines
(2013-07-23) Kurniawan, Nurmasadi; Budijono; M.Hasbi
This study was conducted in May 2013 in the waters of River Tarai District of Kampar Regency Mines. While the analysis of parameters of BOD, COD, TSS and ammonia performed at the Laboratory of the Department of Public Works, Pekanbaru. This study aims to determine the impact of the disposal of liquid waste on water quality River Village Tarai Tarai district of Kampar Regency Mines aspects of physics (pH, temperature, flow velocity, TSS, depth) and chemical (DO, BOD, COD, Ammonia. From the research this can be concluded that, wastewater effluent know an impact on the physical and chemical quality of river water Tarai as TSS increased, the depth and speed of flow, BOD, COD, pH and NH3. overall impact of discharges liquid waste into the waters of river Tarai still not exceed the assimilation capacity of the river Tarai based on the availability of dissolved oxygen conditions which still meets or is above the minimum requirement of fish life, which is 3 mg /l.
Penurunan Amoniak dan H2S pada Air Limbah Rumah Potong Hewan Sapi dengan Proses Biofilter Bermedia Kombinasi Anaerob-Aerob Bermedia Potongan Plastik untuk Media Hidup Ikan Budidaya.
(2013-07-23) Mantyasno, Agung Tris
This research has been held on October to December 2012 at cow casttle house Pekan baru city, Cipta Karya Ujung Street Pekanbaru. The arm of this research is to increase biofilter working process with old plastic bottle medium in decrease amoniak and H2S, rubbish heap water of cow cattle house until under permanent quality based on Permen LH No. 02 Tahun 2006, finally the living of fishes on the rubish heap water of cow cattle house after processing has been increase too. The water that used came from the rubbish heap water of cleaning animal and cleaning bulding in while vessel. Result of processing with reaktor medium showed that amoniak consentration reduced 70,05-22,8 mg/l with efectivity 62,14 – 83,48%. And the consentration of H2S also 12,01-0,08 mg/l with effectivity around 62,49-99,73%. The cultivation of rubbish heap water of cow cattle house with out medium has bee reduced Amoniak consentration and has too, but the effectivity of cultivated is lower. The reduce of consentration H2S Amoniak effectivity around 41,9-50,11%. Although H2S 33,79-77,14%. The research has been held 7 day with water made by control unit it make all of kind of fishes was died. The research with reaktor water made medium fishes of Jambal Siam fishes were reached 97%, Nila 80% and gold fishes 37%.
Reproductive Biology of Trichogaster pectoralis From Flood Plane captured in the Tangkerang Barat District and Delima District
(2013-07-23) Oktafia, Dhela
Trichogaster pectoralis (Anabantidae) is a type of fish that commonly inhabit flood plane of rivers in Riau and it is known as ornamental fish. The biological aspects of this fish, however, is poorly known. To understand the reproductive biology of this fish, a research study has been conducted on Februari to April 2013. Fish samples were captured from flood plane area of the Tangkerang Barat District and Delima District. Parameters measured were sex ratio, GSI, maturity level, fecundity, and egg diameter. There were 87 fishes (32 male and 55 female). The ratio of male and female was 1:2. The GSI of the fish was 0,07-9,58%, egg diameter was relative small (0,48-0,51 mm). The fecundity of fish from the flood plane was3341-22692eggs/ fish. During the sampling period, the maturity level of the fish captured was various, indicate that the T. pectoralis spawning period is relatively long and it peaks in Februari. It is predicted that the T. pectoralis is a parsial spawner.
Decrease of Ammonia and TSS Palm Oil Industry Using By Biosand Filter and Mangrove Charcoal for Fish Aquaculture Media Life
(2013-07-18) Misfahani, Wira
The research was conducted from Desember 2012 until March 2013 at palm oil mill industry of PT. PN V Sei. Galuh Tapung Districk Kampar Regency. Aimed to understand the effectiveness of biosand filter and mangrove charcoal in reducing ammonia and TSS content in liquid waste of palm oil mill for live media of fish aquacultur. Sampling of ammonia and TSS were taken in three point with interval every 2nd week for 5 times and analyzed in Laboratory of the Departement of public works and microbiology then compare with Kep-122/MENLH/2004. Liquid waste of palm oil mill processing by use of four reactor units biosand filter and two reactor mangroves charcoal have can reducing ammonia and TSS with decreased ammonia rate of 148,57 mg/l becomes 6,01 mg/l with effectivenesses 95,95 %. While that of TSS from 680 mg/l to 100 mg/l with effectivenesses 85,29 %. Percentage of survival rate for common carp 40%, tillapia 60%, and patin 77%. It’s compliance with quality standard and as good as for patin life media.
Types and Abundance of Periphyton in Water Plant (Eichornia crassipes and Ipomoea aquatica) in the Rengas Lake, Buluh Cina Village, Siak Hulu Sub-Regency, Kampar Regency, Riau
(2013-07-16) Fitria, Roiza
A study on the Types and abundance of periphyton of water plant (Eichornia crassipes and Ipomoea aquatic) in the Rengas Lake was conducted from January – March 2013. This research aims to understand the types and abundance of periphyton in that area. There were three stations with 3 sampling points in each station. Samples were taken 3 times, once a week and they were analyzed in the Aquatic Productivity Laboratory of the Fisheries and Marine Science Faculty, Riau University. Result shown that the periphyton obtained were consist of 43 species that are attached in the stem of Eichornia crassipes and 41 species in the stem of Ipomoea aquatic , they were belonged to of 5 classes, namely Chlorophyceae, Bacillariophyceae, Cyanophyceae, Xanthophyceae and Chrysophyceae. The average of periphyton abundance was around 16,194 – 16,528 cells/cm2. The most common periphyton was Ulothrix zonata (3398 - 7232 cells/cm2, Chlorophyceae) and the lowest was Cosmarium taxichondrum (2 – 6 cells/cm2, Chlorophyceae). Diversity index (H') was 2.14 – 2.84, dominancy index (C) was 1.07 – 1.22 and equitabity index (E) was 0.59 – 0.80. General water quality parameters are as follow: temperature: 27 – 300C, brightness: 0.39– 0.89 m, pH: 6 – 7, DO: 2.09 – 5.47 mg/l, CO2: 7.98 – 10.98 mg/l, nitrate: 0.00 – 0.55 mg/l and phosphate 0.40 – 0.74 mg/l. Based on data obtained, it can be concluded that water quality in the Rengas Lake is good and able to support the life of periphyton.
Decrease of Organic Pollutans Palm Oil Industry Using By Biosand Filter and Mangrove Charcoal for Fish Aquacultur Media Life
(2013-07-05) Sabriani Putri, Ria
The research was conducted from November 2012 until Januariy 2013 at palm oil industry of PT. PN V Sei. Galuh Tapung subdistrict, Kampar Regency. It’s was aims to understand the effectiveness of biosand filter and mangrove charcoal in reducing organic pollutans content in liquid waste of palm oil mill for live media of fish aquacultur. Sampling of COD and BOD5 were taken in three point with interval every 2nd week during 2 months for 5 times and Analyzed in Laboratory of the Departement of public works and microbiology then compare with Kep-122 /MENLH/2004 attachments B. Liquid waste of palm oil mill Processing by use of four reactor units biosand filter and two reactor mangroves charcoal have can reducing organic pollutans with decreased BOD rate of 261,3 mg/l becomes 51. 92 mg/l with effectivenesses 80,13 %. While that of COD from 952,8 mg/l to183.6 m/l with effectivenesses 80,73 mg/l. And percentage of survival rate for common carp 40%, tillapia 60%, and patin 77%. It’s compliance with quality standard and as good as for patin life media.
The Relationship Between Parameters Water Quality and Fish Communities In The Wetland Area of Rantau Baru Village Pangkalan Kerinci District Pelalawan Regency Riau Province
(2013-07-03) Zulfikar, Moh
A research aims to determine the relationship between parameters water quality and fish communities in the wetland area of Rantau Baru Village Sub District was conducted in Desember 2012 to February 2013. The method used in this research is a case study method with four stations. Data analysis using a Diversity Index (H '), Dominance Index (C) and Equitability Index (E) and the data of fish abundance were also obtained. Results shown that there were four families, six genera of fish that were consisted of 8 species, namely: : Clarias batrachus, Channa striata, C.micropeltes, Trichogaster pectoralis, T. leeri, Anabas testudinus, Helostoma temminckii, Pristolepis grooti. The fish abundance relative ranged from 27,92% - 0,19% ind/genus; H’ 2,7011 – 2,2191; C 0,2616 – 0,1681 ; E’ 0,7343-0.6033; temperatures 29,7 – 30,3 ⁰C; Depth 184,7 – 235,7 m; transparancy 32,5 – 56 cm ; turbidity 5 – 5,7 NTU; pH 4,7; dissolved oxygen 2,07 – 3,3 mg/l. Parameters water quality like a depth, pH and dissolved oxygen giving direct impact between fish abundance in the wetland area of Rantau Baru Village.
TYPES AND ABUNDANCE OF PHYTOPLANKTON AROUND THE FLOATING CAGE FISH CULTURE IN THE KOTO PANJANG DAM, XIII KOTO KAMPAR SUB-REGENCY, KAMPAR REGENCY RIAU
(2013-06-25) Aswad, Fadillah
Waters around the fish cage culture is rich with organic materials and it is a sufficient habitat for phytoplankton. To understand the types and abundance of phytoplankton around the floating cage area in the Koto Panjang dam, a study was conducted on May – June 2012. There were 3 stations, in the Tanjung Alai (St 1), Batu Bersurat (St 2) and Pulau Gadang Baru (St 3). In each station there were 2 sampling sites, close to the cage and 5 meters from the cage. Samplings were conducted 3 times, once/ week. Phytoplankton was identified based on Sachlan (1980), Davis (1995) and Yun Fang (1995). Results shown that the highest abundance of phytoplankton present in the St 1 (5,360 cells/ ml, 18 species), followed by St 2 (4,162 cells/ ml, 16 species) and St 3 (2,559 cells/ ml, 15 species). Types of phytoplankton around the fish cage culture in general are as follow: Bacillariophyceae (8 species), Cholorophyceae (12 species), Cyanophyceae (7 species) and Xanthophyceae (2 species). The diversity of phytoplankton in the study area are medium (H was 1.74 to 2.06), and there was no dominant species (C was 0.25-0.36). Nitrat concentration in the study area was relatively high, 0.62-1.03 mg/l, and phosphate concentration was 0.03-0.10 mg/l. Based on data obtained, it is concluded that the abundance of phytoplankton in the floating cage area is relatively low.
VERTICAL PROFILE OF DISSOLVED OXYGEN IN BANDAR KHAYANGAN RESERVOIR LEMBAH SARI SUB DISTRICT RUMBAI PESISIR DISTRICT PEKANBARU
(2013-06-20) Mayunita, Rizka
The research was conducted from July to August 2012 in Bandar Khayangan Lembah Sari Reservoir. This research aims to understand the vertical profile of dissolved oxygen in this reservoir. Water samples were collected from six station, namely station R.1 and R.2 in riverine zone, T.1 and T.2 in transition zone and L.1 and L.2 in lacustrine zone. In each station, there were three sampling sites namely: in the surface, 2 Secchi depth and in the bottom. Sample was done three time and sampling interval once week. Water quality parameters measured were dissolved oxygen, free carbon dioxide, transparancy, pH, temperature, depth, current, nitrate, phosphate, ammonia and phytoplankton abundance. The result shown dissolved oxygen range 2,40 - 6,83 mg/l, free carbon dioxide 5,33 - 9,32 mg/l, transparancy 47,00 - 55,83 cm, pH 5, temperature 31,0 - 31,7 oC, depth 1,20 - 5,00 m, current 2,61 - 3,06 cm/sec, nitrate 0,01 - 0,09 mg/l, phosphate 0,02 - 0,25 mg/l, ammonia 0,06 - 0,29 mg/l, phytoplankton abundance in the surface range 480 - 936 cells/l, and in the 2 Secchi depth 432 - 904 cells/l. The highest concentration of dissolved oxygen in the surface of riverine zone (6,83 mg/l) and the lowest concentration in lacustrine zone. Based on the vertical profile of dissolved oxygen, it can be concluded dissolved oxygen concentration in lacustrine zone has decreased rapidly due to floating cage activity than the other zones.
The Type and Abundance of Phytoplankton in The Village Pond Sialang Buah, Teluk Mengkudu Sub-Regency, Serdang Bedagai Regency, Sumatera Utara Province
(2013-06-10) Erdina, Devianti
A study aimed to determine the type and abundance of phytoplankton in the village pond Sialang Buah conducted in February 2013. There are four stations with 3 point sampling at each station. Samples were taken 3 times, once/week samples were taken 3 times, for 3 weeks and they were analyzed in the Laboratory of Marine Productivity Faculty of Fisheries and Marine Sciences University of Riau. Result shown that the phytoplankton obtained were consist of 28 species, of which 4 class Bacillariophyceae (19 species), Chlorophyceae (3 types), Cyanophyceae (5 species), and Euglenophyceae (1 species). The average abundance of phytoplankton is between 878-6075 cells / l. Phytoplankton are the most common type of Pleurosigma angulatum (1077 cells / l, Bacillariophyceae). Diversity index (H ') was 1.94 to 3.05, uniformity index (E) was 0.83 to 0.92 and dominance index (C) is 0.10 to 1.10. General water quality parameters are as follows: temperature: 28-29 0C, pH: 7, brightness: 30-50 cm, DO: 2.17 to 6 mg / l, CO2: 40 to 59.9 mg / l, Nitrate : 0.000 to 0.006 mg / l and phosphate from 0.004 to 0.040 mg / l. Based on the abundance of phytoplankton, Pond Village Sialang Buah can be categorized as oligotrophic Pond.
Diversity of Phytoplankton in the Tanjung Putus Lake, Buluh Cina Village, Siak Hulu Sub-Regency, Kampar Regency, Riau Province
(2013-06-07) Sari, Devi Novita
A study aims to understand the abundance and diversity of phytoplankton in the Tanjung Putus Lake was conducted from Desember 2012 to February 2013. There were three stations with 3 sampling points in each station. Samples were taken 3 times, once/week and they were analyzed in the Aquatic Ecology and Environmental Management Laboratory of the Fisheries and Marine Science Faculty, Riau University. Result shown that the phytoplankton obtained were consist of 20 species, they were belonged to of 6 classes, namely Bacillariophyceae (4 species), Chlorophyceae (7 species), Cryptophyceae (2 species), Cyanophyceae (4 species), Euglenophyceae (1 species) and Xanthophyceae (2 species). The average of phytoplankton abundance was around 482 – 640 cells/l. The most common phytoplankton was Dactyloccocopsis sp. (263 cells/l, Cyanophyceae). Diversity index (H') was 2.55 – 2.66, equitabity index (E) was 0.89 – 0.90 and dominancy index (C) was 0.09 – 0.10. General water quality parameters are as follow: temperature: 29 – 31 0C, pH: 6, brightness: 194.67 – 243.33 cm, DO: 6.81 – 8.68 mg/l, CO2: 9.86 – 12.38 mg/l, Nitrate: 0.007 – 0.010 mg/l and Phosphate 0.043 – 0.046 mg/l. Based on phytoplankton abundance, the Tanjung Putus lake can be categorized as oligotrophic lake.
Gastropod Community in the Mangrove Area of the Mesjid Lama Village, Talawi Sub-district, Batubara Regency, Sumatera Utara Province
(2013-06-04) Melani
Gastropods commonly inhabit mangrove area and it is predicted that there is a relationship between mangrove and gastropod communities. In the Mesjid Lama Village, part of mangrove area has been used for housing and tourism area. As any changing in the mangrove may affects the gastropod communities, a study aims to understand the community of gastropods in the mangrove area has been conducted in December 2012. There were 3 stations namely in the area where most of mangrove has been cut (St 1), in the tourism destination where several mangrove has been cut (St 2) and in the good mangrove forest (St 3). Parameters measured were abundance, diversity index (H'), dominance index (C) and equitability index (E). Results shown that there were 5 families, consisted of Potamididae (3 species), Ellobiidae (2 species), Littorinidae (1 species), Neritidae (1 species) and Assimineidae (1 species). Results shown that gastropod community is related strongly to mangrove density. In the St 3, the density of mangrove (1.722 tree/ha) as well as that of the gastropod (208.889 organisms/ha) are the highest. In contrast, in the St I, the mangrove and the gastropod densities are the lowest (444 tree/ha and 38.889 organisms/ha respectively). Water quality parameters in all stations are almost the same, water pH is 8 and that of the soil is 7.63 – 7.75. Water temperature, however is slightly different, as the St1 (31oC) is hotter than those of the other stations (30,7 oC in St 1 and 29,7 oC in St3).
Fish Community and Water Quality in Singkarak Lake Solok Regency Sumatera Barat Province
(2013-05-30) Lubis, Novandi
The research was conducted in December 2012. This study aims to knowing pelagik fish communities in Singkarak Lake with relation to water quality and also and the impact of activities around the lake. The method used in this research is the case study method. Data analysis using diversity index (H '), dominance index (C) and equitability index (E) and the value of fish abundance. Observations found five families are Cyprinidae, Tetraodontidae, Osphronemidae, Cichlidae and Anabantidae, nine genera are: Osteochilus sp, Hampala sp, Puntius sp, Osphronemus sp, Tetraodon sp, Cyclocheilichthys sp, Oreochromis sp, Trichogaster sp, and Mystacoleucus sp. Abundance values ranged 7 - 15 ind/m2; diversity index 0,4237 – 1,1566; dominance index 0,6862 – 0,8678; equitability index 0,2119 – 0,3482; temperatures ranging 29,07 – 29,77 ⁰ C; turbidity 2 - 4 NTU; pH 6; dissolved oxygen 2,70 – 3,20 mg / l, CO2 6,83 – 9,23 mg / l, COD 3,72 – 5,26 mg/l, BOD 0,94 – 1,65 mg / l. The influence of several activities such as farming, floating cages (KJA) and human settlements around the lake, led to the decline of water quality parameters in Singkarak Lake. Based on Government Regulation No.82 of 2001, the condition waters of Singkarak Lake is still in normal condition and still able to support living organisms (aquatic), especially the fish organism.
Abundance Of Dog Conch (Strombus turturella) in Coastal Area Tanjungpinang Kota Subdistrict, Tanjungpinang City. Kepulauan Riau Province
(2013-05-30) Arianti, Nisha Desfi
A research aims to determine the abundance of Dog Conch (Strombus turturella) and its relationship with water quality in the coastal area of the Tanjungpinang Kota Sub District was conducted in December 2012 to January 2013. The method used in this research is a survey method. Water quality parameters measured were temperature, turbidity, pH, salinity and DO, while Dog Conch (Strombus turturella) studied were abundance. Result shown that abundance of the Dog Conch (Strombus turturella) ranged from 31852 ind/ha – 37407 ind/ha. Water quality parameters are as follow: temperature ranged from 28,3 to 32,00 ° C; salinity ranged from 24,33 to 29,67 ‰; turbidity ranged from 5 - 11 NTU; dissolved oxygen ranged from 1,73 – 2,33 mg/l. Organic materials present in the substrate ranged from 28,80 - 49,07 %. Turbidity level were more than the standard issued by Indonesian Government (KepMen LH No.51. 2004). Based on data obtained, it can be concluded that the waters around the Tanjungpinang Kota Sub District is slightly polluted
Conditions of Marine Phytoplankton in Coastal Areas Meral Karimun regency of Kepulauan Riau Province
(2013-05-30) Gustiarisanie, Arinie
A research aims was to determine the water quality and to know how condition of phytoplankton in coastal areas Meral district Karimun Regency Kepulauan Riau Province was conducted in January-February 2013. The method used in research is a survey method. Phytoplankton species were found during the research at high tide is class Bacillariophyceae 18 species, Chlorophyceae has 4 types of classes and Dinophyceae has 2 types of classes. While at low tide the amount of phytoplankton of the class Bacillariophyceae is 13 species, Chlorophyceae has 3 types of classes and Dinophyceae has 1 types of classes. The abundance of phytoplankton at high tide range 175-276 cells / l, the diversity index (H ') ranged from 2.50 to 2.99, dominance index (C) ranged from 0.17 to 0 , 22, and index equitability (E) ranged from 0.67 to 0.96. While at low tide the abundance of phytoplankton ranged from 165-243 cells / l, the diversity index (H ') ranged from 2.31 to 2.66, the average dominance index (C) ranged from 0.20 - 0.23, the average value of uniformity (E) ranged from 0.50 to 0.75. From the condition of marine phytoplankton in coastal areas District Meral based on the value of diversity index (H '), dominance (C), and Equitability (E), while waters quality of high tide and lows including a lightly polluted waters, there are activities such as Boat harbour, recreation beach, sea sands dredging and settlements.
Vertical Distribution of Zooplankton in the Singkarak Lake, Solok Regency, Sumatera Barat Province.
(2013-05-14) Triani, Desiska
The research was conducted from November to December 2012 at the Singkarak Lake, West Sumatera Province and aims to understand the vertical distribution of zooplankton. Method used in this research was a survey method. Zooplankton samples were collected from 4 stations. They were taken using a water sampler and then sieved by a plankton net no. 25. Results shown that there were 19 genera, consisted of Rotifers (5 genera), Euglenophyceae (3 genera), Ciliates (2 genera), Protozoa (1 genus), Copepods (1 genus), Cladocera (1 genus), Sarcodina (2 genera), and Crustacean (4 genera). In the surface, the zooplankton abundance was ranged from 163 – 347 organisms/l, with H’ was 1.741 to 2.371, C was 0.221 – 0.302, E was 0.465 – 0,750. In the 100 cm depth, the zooplankton abundance was ranged from 1.741 to 2.371 organisms/l, with H’ was 2.702 – 3.006, C was 0.137 – 0.188, E was 0.660 – 0.864. In the 200 cm depth, the zooplankton abundance was ranged from 377 – 823 organisms/l, with H’ was 2.509 – 3.272, C was 0.113 – 0.209, E was 0.682 – 1.026. Water quality parameters in general were as follow : temperature 28.3 to 29.5 °C, brightness 70.4 to 224.6 cm, depth 3 to 4 m, TSS : 10.7 to 13.4 mg/l, DO : 2.5 to 3.6 mg/l, CO2 : 7.2 to 9.9 mg/l, and pH was 6.
The Structure of Fish communities and its Relationship with Water Quality in the Coastal Area of the Meral District Karimun Regency Kepulauan Riau Province
(2013-05-06) Astuti, Aditia Jufita
A research aims to determine the structure of fish communities and its relationship with water quality in the coastal area of the Meral Sub District was conducted in October – November 2012. The method used in this research is a case study method. Data were analysis using a Diversity Index (H '), Dominance Index (C) and Equitability Index (E) and the data of fish abundance were also obtained. Results shown that there were seven families of fish that were consisted of 12 species, namely: Caranx leptolepis, Chorinemus tala, Alectis indicus, Megalaspis cordyla, Cybium commersoni, Rastrelliger sp, Mugil belanak, Stromateus niger, Pampus argenteus, Pellona ditchela, Chirocentrus dorab, Ariius thallassinus. The fish abundance ranged from 0.126 - 0.220 fish/m2; H’ was 2.577 - 2.697; D was 0.196-0.202 ; E’ was 0.655-0.835; temperatures ranged from 29.5 to 31 ⁰C; turbidity ranged from 10 to 32 NTU; Velocity was from 22 to 31 cm/sec; pH 7; DO was from 3.3 to 3.7 mg/l, salinity was from 32 to 33 ‰; COD was from 199.92 to 214.20 mg/l. Cu contents ranged from 0.011 to 0.150 mg/l, Pb was ranged from 0.018 to 0.036 mg/l, Zn was ranged from 0.104 to 2.050 mg/l. Parameters water quality like a temperature, DO, velocity, turbidity and salinity giving direct impact between fish abundance and than parameters water quality giving indirect impact between fish abundance is COD and Cu, Pb and Zn.
Diversity of Phytoplankton in the Rengas Lake, Buluh Cina Village, Siak Hulu Sub-Regency, Kampar Regency, Riau
(2013-04-30) Murniarti
A study on the diversity of phytoplankton in the Rengas Lake was conducted from November 2012 to January 2013. This research aims to understand the abundance and diversity of phytoplankton in that area. There were three stations with 3 sampling points in each station. Samples were taken 3 times, once a week and they were analyzed in the Aquatic Productivity Laboratory of the Fisheries and Marine Science Faculty, Riau University. Result shown that the phytoplankton obtained were consist of 29 species, they were belonged to of 5 classes, namely Bacillariophyceae (3 species), Chlorophyceae (18 species), Chrysophyceae (2 species), Cyanophyceae (3 species) and Xanthophyceae (3 species). The average of phytoplankton abundance was around 64,303 – 86,852 cells/l. The most common phytoplankton was Phormidium sp. (50983 cells/l, Cyanophyceae) and the lowest was Vacuolaria sp. (9 cells/l, Xanthophyceae). Diversity index (H') was 1.58 – 2.18, dominancy index (C) was 0.28 – 1.24 and equitabity index (E) was 0.50 – 0.66. General water quality parameters are as follow: temperature: 27 – 300C, brightness: 0.34 – 0.94 m, pH: 6, DO: 1.38 – 2.17 mg/l, CO2: 9.00 – 10.98 mg/l, nitrate: 0.00 – 0.53 mg/l and phosphate 0.41 – 0.72 mg/l. Based on phytoplankton abundance, the Rengas lake can be categorized as eutrophic lake.
A Study of density and closeness of water plant in the Segati River, Langgam District, Pelalawan Regency, Riau
(2013-04-23) Nurmaini
A study of density and closeness of water plant at Segati River of Langgam district Pelalawan regency Riau has done. A study on to ses density, and closeness of water plant. The method used quadrate transect of 10 x 10 cm. There were 3 Stasiun observed with 2rd transects. Water plant species found were eight which belong to four class and eight families, namely Pteridopsida, Liliopsida, Monocotyledonae, Magnoliopsida dan Salviniaceae, Pontederiaceae, Poaceae, Haloragaceae, Cyperaceae, Pandanaceae, Poaceae, Euphorbiaceae. The distributions and species composition are varied dominated by Pandanus tectorius. The density of water plant varied between to 0-97 individuals/m2 and highest by Pandanus tectorius. Water quality of Langgam district is suitald for biota live of water plant.
TYPE AND ABUNDANCE OF PERIPHYTON IN THE KOTO PANJANG DAM, XIII KOTO KAMPAR DISTRICT, KAMPAR REGENCY, RIAU PROVINCE
(2013-04-19) Simanjuntak, Tiara Tinar
Periphyton is a type of algae that commonly inhabit the surface of any immersed objects. A research aims to understand types and abundant of periphyton in the Koto Panjang Dam has been conducted in Oktober to November 2012. Sampling were conducted 3 times, once/week, at 4 stations, namely St I, (riverine), St II (transitions) and St III (lakustrine) and St IV (lacustrine). Periphyton samples were taken by scraping the surface of the immersed wood using a tooth brush ( 5x5 cm2 ). Periphyton collected were then preserved using lugol 1% and then identified based on Hiroyuki et al., (1977) and Yunfang (1995). Result shown that the periphyton obtained were consisted of 38 species, they are belonged to 4 classes, namely Cyanophyceae (12 species), Chlorophyceae (12 species), Bacillariophyceae (11 species) dan Xanthophyceae (3 species). The most common periphyton in each sampling site was Rivularia globiceps. Based on periphyton abundance (21,775 - 42,792 cell/cm2), the Koto Panjang dam can be categorized as eutrophic . In general, the H’ was 1,96 - 2,23; E was 0.82 - 0.89 and C was 0.13 - 0.20. Water quality in the the dam was good, as the temperature was 25-35 0C; brightness was 26.5-118.5 cm, current speed was 0.01-0.29 m/sec, pH was 6, free Carbon Dioxide was 2.11-10.56 mg/l, nitrate was 0.02-0.08 mg/l and Phosphate was 0.02-0.05 mg/l. Based on data obtained, it can be concluded that the periphyton in the dam is growing well and the water quality is suitable for the life of that organism.

Browse

Recent Submissions