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Journal : BIOGENESIS

KANDUNGAN LOGAM BERAT TEMBAGA (Cu) PADA SIPUT MERAH (Cerithidea sp) DI PERAIRAN LAUT DUMAI PROVINSI RIAU Elya Febrita; Darmadi '; Thesa Trisnani
Biogenesis Vol 8, No 1 (2011)
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (253.401 KB) | DOI: 10.31258/biogenesis.8.1.36-40

Abstract

Conducted a study to determine the concentration of heavy metals copper ( Cu ) on the Red Snail ( Cerithidea sp ) on Sea waters Dumai conducted in May and June 2011. The method used was a survey method , in which the station is purposive determination of systematic sampling at three observation stations . The main parameters measured were cu metal content in sea water , sediments and Cerithidea sp and the level of accumulation of heavy metals Cu . While supporters of the parameters are temperature , brightness , salinity , pH , dissolved oxygen , organic matter content and the type of substrate . Heavy metal concentrations of Cu were analyzed using AAS ( Atomic Absorption Spectrophotometer ). The data were analyzed descriptions. The results showed Cu concentrations of heavy metals in sea water range from 0.102 ppm - 0.175 ppm. Cu content of heavy metals in sediments ranged from 1.323 ppm - 3.631 ppm. While the concentration of Cu on Cerithidea sp ranged from 1.264 ppm - 2.592 ppm. Cu concentration of heavy metals in marine waters Dumai has passed the threshold for sea water quality, while the heavy metal concentrations of Cu in Cerithidea sp has not passed the threshold. Biological value of Cu concentration factor on Cerithidea sp ranged from 12.3 to 19.3. This shows the level of accumulation of heavy metals Cu is low.Keywords: Cerithidea sp, Heavy Metal, Copper (Cu)
KEPADATAN DAN DISTRIBUSI BIVALVIA PADA MANGROVE DI PANTAI CERMIN KABUPATEN SERDANG BEDAGAI PROVINSI SUMATRA UTARA Suwondo '; Elya Febrita; Nurida Siregar
Biogenesis Vol 9, No 1 (2012)
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (120.187 KB) | DOI: 10.31258/biogenesis.9.1.45-50

Abstract

The study was conducted to determine the density and distribution of mangroves in Coastal Bivalvia in Pantai Cermin Bedagai Serdang, Sumatra Utara Province, in January to February 2012. The study used survey methods, field data collection using a plot that is placed on a transect. Determination of observation stations done purposively sampling at three observation stations in the area intertidial. The data were analyzed descriptively. The results showed that four types Bivalvia found that Anadara sp, Pharus sp, sp Geloina and Perna viridis. The highest density found in the type Pharus sp with a mean density of 2.75 indv/m3. The lowest densities found on the type of Anadara sp with a rate of 2.07 indv/m3. Bivalvia distribution patterns on patterns of uneven distribution.Keywords: Bivalvia, Density Distribution.
KEANEKARAGAMAN JENIS KUPU-KUPU (Subordo Rhopalocera) DI KAWASAN WISATA HAPANASAN ROKAN HULU SEBAGAI SUMBER BELAJAR PADA KONSEP KEANEKARAGAMAN HAYATI Elya Febrita; Yustina '; Dahmania '
Biogenesis Vol 10, No 2 (2014)
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (192.749 KB) | DOI: 10.31258/biogenesis.10.2.48-58

Abstract

This study aims to determine species diversity of butterfly (Subordo Rhopalocera) in the tourisms area Hapanasan and designing learning sources are the relevant to biodiversity concept based on these results. Observation were conducted from April to June 2013. Determination of the research station by purposive random sampling, that determined based on differences characteristics of habitat. Station I is a secondary forest area, station II is a tourisms park area, station III is a rubber plantations area and station IV is an oil palm plantations. Biological parameters measured are species composition of butterfly (Subordo Rhopalocera) and species diversity index of butterfly (Subordo Rhopalocera). The measured physical parameters include are temperature, humidity and wind speed. Based on the results of the study, founded 194 individual of butterflies. They are consist of 60 species belong to 5 families include Hesperiidae (2 species), Papilionidae (10 species), Pieridae (9 species), Nymphalidae (36 species) and Lycaenidae (3 species). The highest number of species were founded at station II, station IV, station III and the lowest founded at station I. The highest species diversity index were founded at station II (H '=3.23), and the lowest at station I (H '=2.10). The collection and photo of speciments can be used as a source of biology learning in senior high school class X on the biodiversity concept. Learning sources that made media insectarium, syllabus, lesson plans and worksheets.Keyword: Butterfly, Diversity, Hapanasan, Learning sources
STRUKTUR KOMUNITAS SERANGGA POLINATOR DI KEBUN BUAH AGRIBISNIS FAKULTAS PERTANIAN UNIVERSITAS RIAU Suwondo "; Elya Febrita; Kurnia Khairi
Biogenesis Vol 13, No 1 (2016)
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (265.671 KB) | DOI: 10.31258/biogenesis.13.1.46-50

Abstract

ABSTRACT The aim of this research was to determine community structure of pollinator insects in fruit garden Agribusiness Agriculture Faculty University of Riau in March to April 2015. The research was conducted with determining the location of the observation by purposive sampling to establish the location of the observation at 5 fruit garden Agribusiness Agriculture Faculty University of Riau. Biological parameters observed that the abundance of species, dominance index and preferences visits, while the environmental physical parameters include temperature, humidity and light intensity. The results showed the highest relative abundance is Apis cerana, insect pollinators dominance index was low (0,189 to 0,363) and the highest preference insect pollinators in the afternoon (15:00 to 17:00). Keywords: Community structure, Insect pollinators.
IMPLEMENTASI MODEL PEMBELAJARAN INKUIRI TERBIMBING UNTUK MENINGKATKAN KETERAMPILAN PROSES SAINS SISWA PADA MATA PELAJARAN IPA KELAS VII G SMPN 23 PEKANBARU TAHUN PELAJARAN 2015/2016 Evi Suryawati; Elya Febrita; Endah Kurnia Sari
Biogenesis Vol 13, No 2 (2017)
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (398.987 KB) | DOI: 10.31258/biogenesis.13.2.85-92

Abstract

ABSTRACT The study was conducted in classes VII G SMP 23 Pekanbaru 2015/2016 school year to determine the increase science process skills of students by implementing guided inquiry learning model. This research is a classroom action research conducted in two cycles of planning, execution and observation and reflection. The data collected in this study is the science process skills that emphasizes on three areas, namely knowledge, attitudes and skills. Data were collected using tests and observation sheet. The results showed science process skills in every sphere has increased. Science process skills that emphasize cognitive seen from the results of daily tests on the first cycle that 3.05 (B) is increased in the second cycle is 3.15 (B). Students who complete the first cycle of 25 students (64.10%) and increased in the second cycle is 31 (79.49%). On average students' science process skills in the realm of attitudes in the first cycle, namely 2.90 (B) and increased in the second cycle 3.37 (B). Average science process skills of students who emphasize the domain of skills in the first cycle, namely 2.86 (B) and increased in the second cycle is 3.49 (B+). It can be concluded that the application of guided inquiry learning model can improve science process skills class VII G SMP 23 Pekanbaru in the academic year 2015/2016.  Keywords: model of guided inquiry, science process skills
STRUKTUR KOMUNITAS MAKROZOOBENTHOS DI PERAIRAN SUNGAI SUIR KANAN KECAMATAN TEBING TINGGI BARAT KABUPATEN KEPULAUAN MERANTI Yuslim Fauziah; Elya Febrita; Sholahudin Alayubi
Biogenesis Vol 7, No 02 (2011)
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (157.88 KB) | DOI: 10.31258/biogenesis.7.02.%p

Abstract

The purpose of this research is to know community makrozoobenthos structure territorial water of sungai Suir Kanan of Subdistrict (Kecamatan) Tebing Tinggi Barat Kabupaten Kepulauan Meranti at August 2010. This research use method survey with intake sampel conducted five station. Especial parameter measured is type composition, what overflows, variety and dominansi. While parameter of supporter perceived is elementary substrat, organic substance, distrubed, pH, dissolve oxygen and free carbondixide. Result of research found makrozoobenthos more than 9 type full scalely 125 individual. Proportion of biggest type of Potamopyrgus sp and Tubifex-tubifex ( 18,4%). What overflows range from 237,01 - 474,03 ind/m2. What overflows highest type are type Potamopyrgus sp and Buccinum sp equal to 118,51 ind/ m2 and what overflows type low is Dytiscus sp equal to 29,62 ind/ m2 with there is no type predominating ( C = 0,14 - 0,28). Variety categorized a medium range from ( H') = 1,3 - 1,72, this means that as a whole the individual swampy forest every medium species. Can be said that environment territorial water of sungai Suir Kanan start to experience of trouble.
ANALISIS AKTIVITAS DAN SIKAP ILMIAH MAHASISWA DENGAN MODEL PENGAJARAN LANGSUNG BERBASIS INKUIRI PADA MATA KULIAH SISTEMATIKA INVERTEBRATA Suwondo '; Elya Febrita; Ade Suryana
Biogenesis Vol 10, No 1 (2013)
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (174.981 KB) | DOI: 10.31258/biogenesis.10.1.1-10

Abstract

This research has purpose to know the activities and scientific attitude of students with Direct Instruction based Inquiry model on Invertebrate Systematics learning. This research is a descriptive research, that was conducted from March to June 2013. The samples in this research were the students of Biology Education who take course Invertebrate Systematics in academic year 2012/2013, amount to 110 students, who divided into 3 classes. Class A amount to 46 students, class B amount to 42 students and class C amount to 22 students. Parameters measured at this research were activities and scientific attitude of students. The data retrieval activities and scientific attitude of students using observation sheets and peer assessment questionnaires. The results showed that, activities of students in good category (78.23%) and the scientific attitude of students in good category (76.88%). Invertebrate Systematics learning with Direct Instruction based Inquiry model showed an increase in the activities of students learning and scientific attitude.Keywords : Activities, scientific attitude, Direct Instruction based Inquiry model
KUALTTAS BIOLOGI PERAIRAN SUNGAI SENAPELAN, SAGO DAN SAIL DI KOTA PEKANBARU BERDASARKAN BIOINDIKATOR PLANKTON DAN BENTOS Suwondo '; Elya Febrita; Dessy '; Mahmud Alpusari
Biogenesis Vol 1, No 01 (2004)
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1431.142 KB) | DOI: 10.31258/biogenesis.1.01.15-20

Abstract

Water quality based on plankton and benthic organism as bio-indicators  in Senapelan,  Sago and Sail Rivers at  Pekanbaru  city  were  investigated  on  April  -   August  2003.  Survey  method  with  purposive  random sampling  at 7  sampling  point  was  used  in the research.  Various  parameters  such  as saprobe  coefficient indexes,  plankton  and benthic  diversity  and also  bio-indexes  benthic  organism  were observed   Final results had  shown that saprobe indexes plankton between -  0,85   until   +  1,00. While diversity indexes benthic organism  between  0,1 16  -   1,335  and  bio-indexes  benthic  between  1  until  5.  Based  on  the  criterion expressed  that water quality of biology  in Senapelan,  Sago and Sail Rivers at Pekanbaru city were middle until heavily polluted.   Key  words : Biology Quality, Plank tonic, Benthic
PENGINGKATAN KUALITAS IKAN KEMBUNG ASIN (Rastrelliger sp) DENGAN PENAMBAHAN CHITOSAN KULIT UDANG SEBAGAI RANCANGAN LEMBAR KERJA SISWA (LKS) BIOLOGI DI SMA Sri Wulandari; Elya Febrita; Irfan Andi Gafur
Biogenesis Vol 13, No 2 (2017)
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (254.774 KB) | DOI: 10.31258/biogenesis.13.2.131-140

Abstract

ABSTRACT  Do research on the effectiveness of the addition of chitosan mengetaui shells on the quality of salted mackerel (Rastrelliger sp) to draft a student worksheet that was conducted in April and May 2016. The study was carried out by two phases: the field research and resistant design student worksheet (LKS ). Research experiments were conducted using a completely randomized design (CRD) non factorial, consisting of 5 treatments and 3 replicates in order to obtain 15 units of the experimental design. The observed parameters including moisture content, protein content, fat content and organoleptic value which include appearance, aroma, taste and texture. The results showed that the addition of shrimp shell chitosan significant effect on water content, protein content and fat content in the salted mackerel (Rastrelliger sp). Where to lower the moisture content of up to 9.545%, fat content up to 1,543% and can also increase the protein content of up to 48.905%. While hendonik organoleptic test appearance and taste of the most favored panelist on the addition of 3% chitosan concentration, aroma on chitosan 2% and while the texture preferred chitosan panelist at 4%. Results from the study are used as a design student worksheet (LKS) on the subjects of biology in high school. Key words: Chitosan, Salted Mackerel Fish, Student Worksheet.
IDENTIFIKASI JENIS TELUR NEMATODA YANG TERDAPAT PADA SAYURAN Suwondo "; Elya Febrita; Lestia Pratiwi
Biogenesis Vol 12, No 1 (2015)
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (317.239 KB) | DOI: 10.31258/biogenesis.12.1.14-18

Abstract

ABSTRACT The aim of reseach was to determine of the eggs of various types of parasitic nematode worms found in vegetables in February and May 2015. The study was conducted with namely the identification of various types of nematode eggs using a survey method. Sampling was done by purposive sampling. The parameters observed in this study are various types of nematode worm eggs rich in vegetable lettuce (Lactuca sativa), basil (Ocimum basilicum L) and cabbage (Brassica oleracea). The results showed that nematode worm eggs found in vegetables lettuce (Lactuca sativa) is Trichuris trichiura and Necator americanus, basil (Ocimum basilicum L) was found on the eggs Ancylostoma duodenale and cabbage (Brassica oleracea) found eggs of Ascaris lumbricoides. Keywords: Nematode worm eggs, Lettuce (Lactuca sativa), Basil (Ocimum basilicum L), Cabbage (Brassica oleracea)