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Diversity of Phytoplankton in the Kandis River Karya Indah Village, Tapung Sub-Regency, Kampar Regency, Riau Province Lusi Vionora; Yuliati '; Efawani '
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 phytoplankton in the Kandis River was conducted from January 2014. This research aims to understand the type and abundance of phytoplankton in the Kandis River . 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 marine productivity Riau University.Result shown that the phytoplankton obtained were consist of 15 species, they were belonged to of 3 classes, namely Chlorophyceae (5 species), Bacillariophyceae (3 species), and Cyanophyceae (7 species). The average of fitoplankton abundance was around 1237-1480 cells/l. General water quality parameters are as follow: temperature: 290C, brightness: 30-32,5 cm, current speed: 0,08-0,12 m/s, pH: 5, DO: 35–3,7 mg/l, CO2: 11,88–12,9 mg/l, nitrate: 0,01–0,2 mg/l and phosphate 0,02–0,23 mg/l. Based on phytoplankton abundance, the Kandis River can be categorized as oligotriphic river.Keywords: Diversity. Phytoplankton, Kandis River

Diversity of Plankton in the Part of Upstream Siak River Palas Village, Pekanbaru City, Riau Province Sri Rahayu; 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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A study on the diversity of plankton in the part of upstream Siak River wasconducted from Mei-Juli 2013. This research aims to understand the abundance anddiversity of plankton in that area. There were three stations with 3 sampling points ineach station. Samples were taken 3 times, once a week and they were analyzed in theAquatic Ecology and Environmental Management Laboratory of the Fisheries andMarine Science Faculty, Riau University.Result shown that the phytoplankton obtained were consist of 25 species, theywere belonged to of 3 classes, namely Chlorophyceae (10 species), Bacillariophyceae(7 species), and Cyanophyceae (8 species). The average of fitoplankton abundance wasaround 1261-2540 cells/l. The most common phytoplankton was Planktonema sp.(334 cells/l, Chlorophyceae). Diversity index (H') was 2,91–3,07, equitability index (E)was 0,90–0,95 and dominancy index (C) was 0,05–0,08 and result shown that thezooplankton obtained were consist of 10 species, they were belonged to of 3 classes,namely Rotifera (5 species), Ciliata (3 species), and Copepoda (2 species). The averageof zooplankton abundance was around 414-530 inds/l. The most common zooplanktonwas Notholca sp. (88 inds/l, Rotifera). Diversity index (H') was 2,08-2,27, equitabilityindex (E) was 0,90–0,99 and dominancy index (C) was 0,11–0,12. General waterquality parameters are as follow: temperature: 29,3-30,3 0C, brightness: 30-33 cm,current speed: 0,11-0,18 m/s, pH: 5-6, DO: 3–3,4 mg/l, CO2: 8,98–10,98 mg/l, nitrate:0,11–0,14 mg/l and phosphate 0,015–0,019 mg/l. Based on plankton abundance, theSiak River can be categorized as oligotriphic river.Keywords : Plankton Abundance, Phytoplankton, Zooplankton, Upstream Siak River

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

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

STUDY ON CONSUMER ACCEPTANCE OF JELLY CANDY Seaweed (Eucheuma cottonii) WITH THE ADDITION OF NATURAL DYES rosele (Hibiscus sabdariffa L) Yuliati '; N. Ira Sari; Suardi Loekman
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This study aims to determine consumer acceptance of jelly seaweed (Eucheuma cottonii) with the addition of natural dyes rosele (Hibiscus sabdariffa L). The method used is experiment with a completely randomized design, consisting of 4 levels of treatment of R0 (without the addition of roselle), R1 (extra rosela 15%), R2 (extra rosela 20%), and R3 (extra rosela 25%). The parameters tested were organoleptic, chemical analysis and treatment of the best views of the parameters tested is treated R3 (xtra rosela 25%) with a red color such criteria (7.29), the distinctive aroma of seaweed no (7.46), sweetness and typical rosela acid (7.57), teksturserat-fiber smooth and not sticky (7.58), with a water content of 15.20%, ash content of 0.42%, 4.33% reducing sugar.Keywords: jelly, roselle, seaweed, organoleptic assessment

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