Management of Marine Resources

Permanent URI for this collection

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

Browse

Now showing 1 - 20 of 45

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
Analisis Saluran Pencernaan Ikan Selinca (Belontia hasselti) dari kanal sawit di Desa Terantang Kecamatan Tambang Kabupaten Kampar Provinsi Riau Stomach analysis of Belontia hasselti captured in the palm plantation canals at Terantang Village, Tambang Sub-Regency, Kampar Regency, Riau Province
(2012-11-26) Azwar, Delpi
A study aims to understand stomach analysis of Belontia hassellty present in the drainage canals of palm plantation in the Terantang Village has been conducted on February to April 2012. Fish samples were captured using bamboo fish trap, once/ week for a 4 month period. There were 123 fishes (102 males and 21 females) captured and TL is ranged from 52 to146 mm and BW ranged from 2 to 68 gr. Fish stomach was removed and stomach content was analyzed using volumetric, occurence frequency. Stomach content of fish is related to their size. In small fish (TL less than 135 mm), the main food is plankton. In the relatively bigger fish (TL more than 136 mm), the main food crustacean. Preponderance Index in the fish in general was chlorophyta 45.14%, cyanophyta 20.23%, basillariophyta 22.89%, crustacea 11.40%, rotifera 0,20%, and insecta 0.15%. based on data obtained, it can be concluded that Belontia hasseltii is omnivorous but it tend to be herbivorous.
ASPEK BIOLOGI REPRODUKSI IKAN BUJUK (Channa lucius) di PERAIRAN RAWA BANJIRAN SUNGAI TAPUNG A study on reproductive biology of Channa lucius captured in the flood areas of the Tapung River, Riau Province
(2012-11-26) Situmeang, Lidya
Channa lucius is a high economic valued fish that commonly inhabit swamp waters. As there is limited biological aspect information available, a study aims to understand reproductive biological aspects of this fish has been conducted on February – April 2012. Fish samples were caught using trap and line fishing gear. There were 40 fishes, consisted of 24 females and 16 males, 200 -330 mm SL and 4,79 - 5,97 gram weight. Sex ratio of females and males was 1:1,5. The GSI of mature males 0,02%-1,02% and that of the females were 0,16%-2,99%. Fecundity ranged from 1,592-1,907 eggs/ fish, with mature egg diameter ranged from 1.40-1.70 mm. Microscopic study of the ovarian structure showing that the ovary of the mature females consisted of eggs in several maturity levels, namely non vitellogenic, early vitellogenic and vitellogenic, indicates that this fish may be a partial spawner. The testes of males showing mature sperms throughout the study period, indicates this fish may be able to spawn throughout the year.
ASPEK BIOLOGI REPRODUKSI IKAN SELINCA (Belontia hasselti) DI DESA TERANTANG KECAMATAN TAMBANG KABUPATEN KAMPAR PROVINSI RIAU (Reproductive Biological Aspect of Belontia hasselti in the Terantang Aquatic at Tambang, Kampar District, Riau Province)
(2012-10-16) Simanjuntak, Esa F
Belontia hasselti is belonged to Belontiade family and commonly inhabit in the flood area in the riverside in Riau. However, information on reproductive biology of this fish is rare. To understand the reproductive biological aspects of this fish, a research has been conducted on February-April 2012. There were 123 fishes (102 males and 21 females) captured and TL is ranged from 52 to146 mm and BW ranged from 2 to 68 gr. The sex ratio of male and female is 5:1. In each sampling time there were fishes with 1st, 2nd, 3rd and 4th maturity level. The Gonado Somatic Index (GSI) is arround 0.01-10.46 %. Fecundity is around 142-10,041 eggs. Relationship between fecundity and TL is weak (r=0.03), while the relationship between fecundity with BW and GW are strong, r=0.99 and r=0.99 respectively. The egg size less various, around 0.98-1.00mm in diameter. However, the maturity stages of eggs in the ovary is various. In the 1st maturity level, the eggs are non vitellogenic with 0.05-0.18mm in diameter. In the 2nd maturity stage, the eggs are bigger 0.15-0.44mm and several eggs are in early vitellogenic stage. In the 3rd maturity level, eggs diameter is arround 0.28-1.95mm and there were several vitellogenic eggs. In the 4th maturity level, most of eggg in the ovary are mature (fully vitellogenic), 0.3-0.5mm in diameter. However, in the ovary of the 4th maturity stage fish, there are many immature eggs. This evidence indicates that B. hasselti may be a “partial spawner” and may spawn their eggs throughout the year.
Biomass Of Sea grass At Selat Mie Village Coastal Water, Moro District, Karimun Regency, Riau Archipelago
(2013-01-21) Andriadi, Nova
The research was done in January 2012 with the aim of knowing the species and biomass of seagrass. The field work was conducted in the coastal water of Selat Mie Village, Moro District, Karimun Regency, Riau Archipelago. Seagrass sample for biomass study were taken from qudrants (1x1 m2) that were plaud in 3 stasion. This research shown that were 1 (one) spesies of seagrass Enhalus acoroides. The total density of seagrass was in the range of 19,67-22,93 tunas/m2. The weight of fresh seagrass ranged from 47,4-71,1 gr/m2, dry weight of seagrass ranged from 18,5-20 gr/m2, ash weight seagrass ranged from 3,2-8,6 gr/m2, and organic biomass ranged from 0,316-0,354 gr/m2. Water quality parameter values shown that Selat Mie water is suitable for supporting the live of seagrass.
Blood condition of Clarias batracus from the Kampar and Siak Rivers, Riau Province
(2013-01-14) Anggun Satrisno, Panji
Siak River is one of the most polluted river in Riau and its low water quality may negatively affects the healt status of fish that inhabit that river. The Kampar River in contrast, is in good condition. To understand blood condition of C. batracus living in both rivers, this study was conducted. Totally 6 fishes from Siak and 8 fishes from Kampar were studied. Blood was obtained from vena caudalis and then was checked for the number of erytrocyte and leukocyte numbers, hematocrite and leucocrite levels and type of leuklocyte was studied. Leukocyte type was studied by smearing blood in the slide glass and stained with Giemsa. Results shown that the condition of blood of fish from both study sites was not signigicantly different. The number of eritrocyte and leucocyte of fish from the Siak River was 2,775,833 (hematocrite level 25.93%) and 276,750. (leukocrite level 29.72%)., while those of the Kampar River was 2,031,250 and 130,813. Types of leukocyte present in fish from both sampling areas also similar, there are monosit, limfosit, trombosit, and netrofil.
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.
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.
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.
DEGRADATION OF POLLUTANTS ORGANIC WASTE WATER PLANT PALM OIL USING BIOFILTER LIFE ZEOLIT FOR THE MEDIA LIFE OF FISH AQUACULTURE
(2013-03-22) Sari, Juwita
This research has been conducted in October – November 2012 millers located in PT. PN V Sei Galuh District Tapung Kampar regency. Intended to find out the effectiveness of a decrease in persistent organic pollutants in waste water POM with biofilter process mediated zeolite of bermedia levels of fish cultivation in wastewater. Liquid waste from land application pool and then processed on the zeolite mediated biofilter reactor, then the results are tested as a medium of live aquaculture .Samples (BOD dan COD) taken three sampling points and analyzed in the laboratory of the Departement of public works and microbiology later than No. KepmenLH. 122 2004. The measurement results,the value of the effectiveness of media processing reactor BOD parameter from 47.4 to 90.8 and COD from 43.4 to 79.4, while the effectiveness of the reactor without media processing parameters BOD from 0.3 to 0.5 % and 1.6 COD – 2 %. Concentration values of BOD and COD processing results not meet quality standards. Conditions of media processed water is better than without the media with a percentage of 40% in the goldfish , fish oreochromis niloticus at 63 % and 90 % in fish Clarias Batrachus.
The Distribution of Phytoplankton Horizontally Near Floating Net Cage in Reservoir of Koto Panjang Hydro Electric Power Plant XIII Koto Kampar Subdistrict Kampar Riau Province
(2013-02-11) Azhari, Willy
This research was conducted on may 2012 with the objective to know the distribution of phytoplankton horizontally near floating neat cage in reservoir Koto Panjang Hydro Electric Power Plant XIII Koto Kampar, subdistrict Kampar, Riau province. The sample, phytoplankton, for this research was taken using plankton net No. 25 that located in 2 station. In this research, it showed that there was 37 kind of phytoplankton from 5 classes. The affuluent of phytoplankton actually about 1900-7925 cell/l. The variety index value actually about 1,89-2,38. The dominant index value about 0,20-0,37. The kuadratic parameter of water showed that reservoir of Koto Panjang Hydro Electric Power Plant was suitable to carry phytoplankton enliven subsistance.
The Diversity of Phytoplankton and their Relation Ship With Nitrate and Phosphate in Singkarak Lake Solok Regency Sumatera Barat Province
(2013-01-10) Sartika, Desri
This research was conducted from September to October 2012 and aims to understand the relationship between nitrate and phosphate content with phytoplankton abundance. There were three stations. Sample 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 consisted of 27 genus, they were Cyanophyceae (5 genus), Chlorophyceae (13 genus), Bacillariophyceae (8 genus) and Euglenophyceae (1 genus). The average of phytoplankton abundance was around 20520 - 10920 cells/l, diversity index (H’) around 2,23 – 2,39, dominancy index (C) around 0,22 – 0,28 and diversity index (E) around 0,59 – 0,63. The result of water guality parameters respectively were: temperature : 29.30 – 29.500C, dissolved Oxygen: 2.61 – 2.93 mg/l, pH : 6, turbidity : 2 – 3.3 NTU, CO2 : 7.20 – 11.20 mg/l, Nitrate : 0,08 – 0,17 mg/l and phosphate : 0.10 – 0.13 mg/l. The results of water guality parameters is still supported. The trophic status of Singkarak Lake based on phytoplankton abundance was mesotrophic. The relationship of the abundance of phytoplankton with nutrient showed that nitrate and phosphate influenced phytoplankton abundance but not all station locations is influenced by nitrate and phosphate.
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.
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.
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.
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).
Histological structure gill and of the Kidney Kryptopterus limpok at Kampar River and An River Siak Riau Province
(2012-11-26) Hidayat
Siak River is one of the rivers that has polluted water in Riau. Low water quality in this river is negatively affects the fish living there. To understand other effects of low quality water on fish, a study aims to understand the histological structure of organs of Kryptopterus limpok has been conducted. Fish organs (gill and kidney) were processed for histological studied (formalin fixed, alcohol series, HE stained, 6 sliced). The structure of the organs were compared with the organ of fish captured in the Kampar River that has good water quality. Results shown that in general, histological structure of gill and kidney structure of fish from both areas are different. The cell structure of the Siak’s fish shown abnormality, while those of the Kampar fish were normal. Cell abnormality such as hyperplasia, hypertrophy, necrosis, hemorrhage, epithelium lifting and fused lamella are present in the gill of Siak’s fish. Most of lamella fused and there was no space between lamellae. In the kidney of the Siak’s fish, there were damaged glomerulus cells, hemorrhage, kongesti and mineralization. Based on data obtained, it can be concluded that low quality of water in the Siak river causes abnormality in tissue structure of the fish.
Jenis dan Biomassa Lamun (Seagrass) Di Perairan Pulau Belakang Padang Kecamatan Belakang Padang Kota Batam Kepulauan Riau
(2013-01-14) Yahya, Muhammad
A Study of density and biomass of seagrass at waters Belakang Padang island of Belakang Padang district, Batam city Kepulauan Riau province has done. The method used quadrate transect of 50 x 50 cm. There were 4 stasiuns observed with 3 quadrate transects each. Seagrass species found were seven which belong to two families and four genus, namely Syringodium iseotifolium, Halodule uninervis, Halophila ovalis, Halophila spinulosa, Thalassia hemprichii dan Enhalus acoroides. The density of seagrass bed varied of 18 – 818 individuals/m2 and highest by Thalassia hemprichii. Water quality of Pulau Belakang Padang is relative good for biota live of seagrass.
JENIS DAN KELIMPAHAN FITOPLANKTON DI DANAU TOBA DESA HUTA HOTANG KECAMATAN ONAN RUNGGU KABUPATEN SAMOSIR PROVINSI SUMATERA UTARA
(2013-01-07) Simanullang, Saritua
This research has been conducted in July 2012 in Lake Toba. The research used survey method. There were 3 station, Station 1: The litoral zone of resident activities such as washing, gardening, farming, tourism, and chart for fishing, Station 2: located in the middle of Lake Toba, Station 3: Outlet of Lotung river, around 500 meters from the station 1. Samplings were conducted 3 times, once/week. This research aim to know abundance of phytoplankton in Lake Toba. The results showed 47 kinds of phytoplankton that classified into 5 classes, there were :Chlorophyceae (15species), Cyanophyceae (6species), Bacillariophyceae (12species), Chrysophyceae (4species), and Xanthophyceae (10species). The average of phytoplankton abundance around 77.076-116.993 cel/l, Diversity index (H') of phytoplankton around 2,845-2,891 and Domination index (C) around 0,052-0,065. Whereas water quality parameter such as temperature around 28,3-30oC, Transparency around 433,3-650 cm, Depth around 20-70 m, pH 6, Dissolved Oxygen around 4,3-6,3 mg/l, Free carbondioxide around 3,73-5,03 mg/l, Nitrate around 0.01-0.02 mg/l, Phosphate around 0,023 mg/l. Based on abundance of phytoplankton, concluded the stations of research in lake Toba mesotrophic water
Jenis-Jenis Fitoplankton Di Sungai Segati Kecamatan Langgam Kabupaten Pelalawan, Riau
(2013-01-14) Dayuwati, Isnasia
The study to determine the types of phytoplankton around Segati River, Langgam District. The research was conducted in Juni-September 2012 in the Segati River, Langgam District, Pelalawan Regency, Riau. Phytoplankton types found during the study in the Segati River, Langgam District consisted of five classes and (17 species) namely the class Cyanophyceae (7 species), class Cryptophyceae (1 species), class Chlorophyceae (6 species), class Xanthopyceae (1 species) and class Bacillariophyceae (2 species). Abundance values of phytoplankton in the Segati River Langgam District, ranging from 625 cel/l – 1550 cell/l, diversity index (H’) around 1,0 – 3,0. Dominancy index (C) around 0.110 – 0.296 and equitability index (E) around 0.684 – 0.957. Water quality parameter in the Segati River, namely : temperature 29 0C – 31 0C, brightness 35 cm – 39 cm, flow velocity 0,10 m/dtk – 0,15 m/dtk, depth 4 – 6 m, the degree og acidity (pH) 5 – 6, dissolved oxygen (DO) 7,16 mg/l – 7,34 mg/l, carbon dioxide-free (CO2 free) 6,99 mg/l - 7,29 mg/l, Nitrate 0,030 mg/l – 0,047 mg/l and phosphate 0,004 mg/l – 0,007 mg/l. Based on the nitrate and phosphate, Segati River classified oligotrofik waters.

Browse

Browsing Management of Marine Resources by Title

Results Per Page

Sort Options