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Comparative study on stomach content analysis of snakehead fish (Channa striata, BLOCH 1793) from the Sibam and Kulim Rivers, Riau Province Rahma Dhania Salamah; Efawani '; Deni Efizon
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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Snakehead fish (Channa striata) inhabits the Sibam River that has polluted water and the Kulim River that has good water quality. As the quality of water affects the availability of food resources, it may influence the stomach content of the fish. A research aims to understand the stomach content of the fish was conducted on January-March 2017. The Index of Preponderance (IP) was calculated. There were 32 fishes from the Sibam River and 56 fishes from the Kulim River. Results shown that the main food of the snakehead fish was fish, IP value was 89% and 94% in the Sibam and Kulim Rivers respectively. Other types of food present in stomach of the Kulim’s fish were insect, bivalve and crustacean, but there was no crustacean in the Sibam’s fish. Data obtained shown that the water quality affect the availability of the snakehead fish food in general, as the fish food from the Kulim River is more various.Keyword : Sibam River, Kulim River, Stomach Content, Channa striata

Types and Density of Aquatic Plant in Lubuk Siam Lake Lubuk Siam Village Siak Hulu Sub-Regency Kampar Regency Riau Province Antoni '; Efawani '; Deni Efizon
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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Lubuk Siam Lake is one of the oxbow lakes in the Lubuk Siam Village, SiakHulu Sub-regency, Kampar Regency, Riau Province. This lake is overgrown by varioustypes of aquatic plants and almost cover the surface of the lake. This condition hampersthe fishing activities in the lake. This research aims to discover the types and density ofthe aquatic plant in Lubuk Siam Lake and it was conducted on February to March 2015.Field sampling was done 2 times, a month period. The plants were then identified basedon Van Steenis (1981).Results shown that there were 7 species of aquatic plants present in the LubukSiam Lake and they are belonged to 4 classes, 7 families. They are Eichhornia crassipes,Salvinia natans, Ipomoea aquatica, Cyperus sp., Paspalum sp., Pandanus sp., andNephrolepis sp. The most common plant is Salvinia natans (61-71 organisms/m2,relative density 55.94-57.13 %), while the rarest was Ipomoea aquatica (4.5-7organisms/m2, relative density 3.48-6.47 %). In general, the relative density of aquaticplants in the Lubuk Siam Lake can be categorized as rare to dense.Keywords: Lubuk Siam Lake, Aquatic Plant, Density

Identification of types and aquatic plants coverage area in the Bandar Kayangan Lembah Sari Lake, Rumbai Pesisir Sub-Regency, Pekanbaru, Riau Province. Lauura Hermala Yunita; Efawani '; Eddiwan '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Bandar Kayangan Lembah Sari Lake is a man-made lake that is used to store water for agricultural and tourism purposes. There are many aquatic plants present in the lake and to understand the types and coverage area of the aquatic plant, a study was conducted in March-April 2016. A purposive sampling method was applied in collecting the aquatic plant. The plants were then identified based on Van Steenis (1981). The map of Bandar Kayangan Lake was downloaded using Google Earth application and the aquatic plant coverage areas in each station were then measured as a basis to predict the plant coverage area in the lake. The aquatic plants found during this study consisted of 4 families and 4 species, they were Cyperus rotundus, Paspalum commersoni, Nymphaea sp., and Pandanus sp. The aquatic plants coverage in the Bandar Kayangan Lake was around 18% and it is categorized as rare. The area that is not covered by aquatic plant was around 82% (1,054.058 m2).Keyword : Bandar Kayangan Lembah Sari Lake, aquatic plant, coverage area.

Types and Density of Aquatic Plant in Rengas Lake, Buluh Cina Village, Siak Hulu Sub-Regency, Kampar Regency, Province of Riau. Muhammad Fazli; Efawani '; Yuliati '
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 aims to discover the types and density of aquatic plant in RengasLake, Buluh Cina Village, Siak Hulu Sub-regency, Kampar Regency, Province of Riau.This research was conducted on January until April 2013. This research uses SurveyMethod with doing both observing and sampling. Samples were taken 3 times, once aweek and they were analyzed in the Picology Laboratory of the Fisheries and MarineScience Faculty, University of Riau.Result shown that there are 3 classes, 6 families and 6 species of aquatic plants.There are Eicchornia crassipes, Vetiveria zizaniodes, Salvinia natans, Ipomoeaaquatica, Myriophyllum brasilliense, and Cyperus esculentus. From those aquaticplants, the species that has the most value of density is Eucchornia crassipes (54 - 82cells/m2) and the least value of density is Myriophyllum brasilliense (20-66cells/m2)Based on data obatained, Eucchornia crassipes is relatively the most denseaquatic plant (16 - 28%) and Myriophyluum brasillense is the least (7-19%).Keyword: Aquatic Plant, Density, Rengas Lake

Re-inventarisation of fish in the Sail River, Pekanbaru Regency, Riau province Adilla Yusra Lubis; Efawani '; Windarti '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Sail River is one of the polluted rivers in Riau. A study on fish identification in that river has been conducted in 1981 (Hamidy and Alawi, 1991) and there were 54 species present. The environmental changing during these recent years, however, may affects the fish population in that river in general. To understand the fish type present in the Sail River nowadays, a study has been conducted in December 2014 - February 2015. The fish was sampled from 5 study sites, there were in the upstream of river, under the Imam Munandar bridge, under the Sail bridge, in the Lima Puluh District and in the river mouth of the river. The fish were caught using gill net, lure, and cash net. Fish species are identified based on Saanin (1986) and Kottelat et al. (1993). Results shown that the fish caught during the study were consisted of Cypriniformes (8 species), Osteoglosiformes (1 species), Siluiformes (2 species), Beloniformes (1 species), Cyprinodontiformes (1 species), and Perciformes (10 species). The most common genus was Cypriniformes and Perciformes, and they were captured mostly under the Imam Munandar bridge. Based on data obtained, it can be concluded that the fish species living in the Sail River has been significantly decreased during the last 25 years.Key word : Sail river, Pekanbaru, cypriniformes, perciformes, fish population decrement

The Association of Pistia stratiotes and Fish in the Dam of the Fisheries and Marine Science Faculty, Riau University Cyntia Uli Artha Sihombing; Efawani '; Deni Efizon
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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The water surface of the dam of the Fisheries and Marine Science Faculty of Riau University is almost covered by Pistia stratiotes and this condition may affect the availability of fish in that area. To understand the types of fish associated with that aquatic plant, a research has been conducted February to March 2017. Based on plant density, there were 3 sampling sites, site 1 (46.19 plants/m2), site 2 (14.6 plants/m2) and site 3 (52.31 plants/m2). A modified quadrant (2 x 2 m, completed with fish trapping net attached) was placed for an hour in each site. Samplings were conducted 4 times, once/week. Results shown that there is a relationship between the plant density and the number of fish as well as the types of fish present. As the density of the plant increase, the number and type of fish present was also increase. The types of fish present are as follows: Trichogaster trichopterus, T. pectoralis, Trichopsis vittata, Rasbora einthovenii, Oreochromis nilloticus, Xenentodon canciloides, and Channa striata. In the lower surface of the plant, there were fish eggs attached. Data obtained indicate that there were 7 fish species associated with P. stratiotes and the community of the plant may serves as hatchery of the associated fish.Keywords : The Dam of the Fisheries and Marine Science Faculty of Riau University, Aasosoation

The Diversity of Plankton in the Pinang Dalam Lake, Buluh Cina Village, Siak Hulu, Kampar, Riau Province Galuh Putri Ratna Ningtyas; Efawani '; Yuliati '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 2 (2014): Wisuda Oktober Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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A study on the diversity of plankton in Pinang Dalam Lake was conductedfrom January – March 2014. This research aims to identify the diversity ofplankton in Pinang Dalam Lake. There were three stations with 3 sampling pointsin each station. Samples were taken 3 times, once a week and they were analyzedin the laboratory of Ecology and Aquatic Environment Management of Fisheriesand Marine Science Faculty of Riau University.Result shown that the plankton obtained were consist of 7 classes ofphytoplankton and 7 classes of zooplankton with 43 species as following:Bacillariophyceae Class (7 species), Cyanophyceae (4 species), Chlorophyceae (8species), Dinophyceae (2 species), Chrysophyceae (2 species), Euglenophyceae (4species), Xanthophyceae ( 2 species), Brachionidae (1 species), Maxillopoda (4species), Monogonata (3 species), Tubulinea (1 species), Copepoda (1 species),Ciliata (1 species) and the last is Bdelloidea (3 species). The average ofphytoplankton abundance was around 262222 – 328711 cells/l. Diversity index(H’) was 1.22 - 1.87, dominance index (C) was 0.51 - 0.67, and equitabity index(E) was 0.25 - 0.38. The average of zooplankton abundance was around 4622 –5333 ind/l. The result of this study based on the value of the phytoplankton,Pinang Dalam Lake including the type of lake that has a high abundance ofphytoplankton.Keywords : Phytoplankton Abundance, Pinang Dalam Lake, Oxbow Lake

Diversity of Plankton in the Part of Downstrem Siak River, Tualang Village, Tualang Sub-Regency, Siak Regency, Riau Province Ani Mulyani; Yuliati '; Efawani '
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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A study on the diversity of plankton in the part of downstrem Siak River wasconducted from May to Juli 2013. This research aims to understand the abundanceand diversity of phytoplankton in that area. There were three stations with 3 samplingpoints in each station. Samples were taken 3 times, once a week and they wereanalyzed in the Aquatic Ecology Laboratory of the Fisheries and Marine ScienceFaculty, Riau University.Result shown that plankton obtained were of 23 genus species, they werebelonged to of 3 classes, namely Bacillariophyceae (6 species), Chlorophyceae(9 species), Cyanophyceae (8 species). The average of phytoplankton abundance wasaround 1083 – 1911 cells/l. The most common phytoplankton was Diatoma sp.(316 cells/l, Bacillariophyceae). Diversity index (H') was 2,88 – 2,99, equitabilityindex (E) was 0,08 – 0,92 and dominancy index (C) was 0,04 – 0,77 and result shownthat the zooplankton obtained consist of 10 genus, they are belonged to 3 classes,namely Rotifera (5 jenis) Ciliata (3 genus), Copepoda (2 genus). The average ofzooplankton abundance was around 409 – 497 ind./l. The most common zooplanktonwas Notholca sp. (123 inds/l, Rotifera). Diversity index (H') was 2,11 - 2,24,equitability index (E) was 0,91 – 0,94 and dominancy index (C) was 0,08 – 0,12.General water quality parameters are as follow: temperature: 29 – 31 0C, pH: 6,transparancy: 29 cm, DO: 3,25 – 4,63 mg/l, CO2: 9,01 – 10,11 mg/l, nitrate:0,09 – 0,12 mg/l, and phosphate 0,013 – 0,016 mg/l.Keywords : Plankton Abundance, Phytoplankton, Zooplankton, Downstrem Siak River

FEEDING HABIT OF FRESHWATER LOBSTER (Cherax quadricarinatus) IN THE RIAU UNIVERSITY AQUATIC ECOSYSTEM Yogi Pramana Putra; Windarti '; Efawani '
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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Streams, dam and pool around the University of Riau is inhabited by many types of aquatic organisms, including freshwater loster (Cherax quadricarinatus). Freshwater lobster (Cherax quadricarinatus) is an alien species originated from Austalia. So far, the information obtained is only limited to type identification, while other information on the lobster is not yet known. To understand the feeding habit of freshwater lobster in the aquatic ecosystem, a research has been conducted in December-January 2017. There were three sampling areas, namely an earthen pool around the Rektorat Building (Station 1), the dam (Station 2) and the stream in the back of Marine Science Building (Station 3). Samplings were conducted everyday for a one month period. Lobster was captured using a scoop net and pit traps. Stomach content analysis was performed in the laboratory. Total number of lobster sampled was 40. Results shown that the main food of the lobster is detritus (IP>40%), the complementary food is fish remains, plant and phytoplankton (IP 4-40%).Keyword : Cherax quadricarinatus, Lobster, Index of preponderance, Stream, dam

Diversity of Phytoplankton in the Solok Pulau Lake, Tanjung Balam Village, Siak Hulu Sub-Regency, Kampar Regency, Riau Province Hendri Andriawan; Windarti '; Efawani '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 2 (2016): Wisuda Oktober Tahun 2016
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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A study on the diversity of phytoplankton in the Solok Pulau Lake was conducted fromOctober–December 2015. This research aims to understand the diversity and abundance ofplankton in that area. There were three stations with 3 sampling points in each station. Sampleswere taken 3 times, once a week and they were analyzed in the Aquatic Productivity Laboratoryoh the Fisheries and Marine Science Faculty, Riau University.Result shown that the phytoplankton obtained were consist of 22 species, they werebelonged to of 6 classes, Bacillariophyceae (4 species), Chlorophyceae (10 species),Cyanophyceae (3 species), Dinophyceae (1 species), Euglenophyceae (3 species) danXantophyceae (1 species). The average of phytoplankton abundance was around 553 – 17.778cells/l. The most common phytoplankton was Isthmia sp. (28.978 cells/L, Bacillariophyceae).Diversity index (H’) was 2.47 – 3. 54 and dominancy index (C) was 0.11 – 0.21. General waterquality parameters are as follow: temperature: 28 – 30 °C, pH: 6, brightness: 38 – 70.5 cm, DO:6.7 – 7.6 mg/L, CO2: 9.8 – 12.7 mg/L, Nitrate: 0.02 – 0.04 mg/L and phosphate: 0.09 – 0.018mg/L. Based on phytoplankton abundance, the Solok Pulau Lake can be categorized asoligotrophic lake.Keywords : Phytoplankton Diversity, Bacillariophyceae, Solok Pulau Lake

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