Biologi Edukasi: Jurnal Ilmiah Pendidikan Biologi
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Jenis-jenis Ikan Hasil Tangkapan Nelayan yang Didaratkan di Tempat Pelelangan Ikan (TPI) Kuala Tuha Kecamatan Kuala Pesisir Kabupaten Nagan Raya
Get PDFPenelitian jenis-jenis ikan hasil tangkapan nelayan yang didaratkan di TPI (Tempat Pelelangan Ikan) Kuala Tuha Kecamatan Kuala Pesisir Kabupaten Nagan Raya dilaksanakan pada tanggal 29 s.d 31 Mei dan 27 s.d 30 Juni 2009 (bulan gelap). Penelitian ini bertujuan menginventarisasi jenis-jenis ikan hasil tangkapan nelayan yang didaratkan di TPI Kuala Tuha Kecamatan Kuala Pesisir Kabupaten Nagan Raya. Penelitian dilakukan dengan menggunakan metode survey langsung dengan teknik sensus jenis (spesies) ikan yang didaratkan di TPI, data dianalisis menggunakan analisis deskriptif. Hasil penelitian ditemukan 2 kelas ikan yang terdiri dari 76 Spesies (43 famili 14 ordo). Jenis ikan yang paling banyak didaratkan adalah dari kelas Osteichthyes (ikan bertulang keras) yaitu Ordo Perciformes yang mencapai lebih dari 50% (Scombridae, Stromateidae, Sciaenidae, Teraponidae, Serranidae, Mullidae, Kyphosidae, Acanthuridae, Lobotidae, Scatophagidae, Lutjanidae, Lethrinidae, Priacanthidae, Sphyraenidae, Haemulidae, Nemipteridae, Trichiuridae, Ephippidae, Mungilidae, Chandidae, Cichilidae). Dalam penelitian ini terdapat satu jenis ikan yang terancam punah/langka yaitu ikan bukum (Arothon immaculatus) dari Famili Tetraodontidae. Dalam penelitian ini tidak semua jenis ikan dapat didaratkan di TPI Kuala Tuha hal ini disebabkan oleh beberapa faktor diantaranya faktor cuaca yang tidak mendukung sehingga banyak nelayan yang tidak pergi ke laut. Musim tangkapan sangat mempengaruhi hasil tangkapan ikan dengan demikian sangat dimungkinkan masih banyak jenis-jenis ikan yang belum diinventarisasi
Penerapan Model Pembelajaran Kooperatif Tipe Team Games Tournament (TGT) Berbasis Praktikum terhadap Penguasaan Konsep Sistem Pencernaan Manusia Di SMA Negeri 1 Sigli
Get PDFPenelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran kooperatif tipe TGT terhadap penguasaan konsep sistem pencernaan manusia di SMA Negeri I Sigli. Metode yang digunakan adalah metode eksperimen dengan rancangan Pretest-postest Control Group Design. Populasi penelitian adalah seluruh siswa kelas XI IPA SMA Negeri I Sigli semester dua sebanyak 8 kelas dengan jumlah siswa 240 orang, sedangkan sampel dalam penelitian ini diambil secara acak atau random sampling sebanyak 60 siswa yang terdiri dari 30 siswa kelas XI-IPA5 sebagai kelas eksperimen dan 30 orang siswa kelas XI-IPA6 sebagai kelas kontrol. Pembelajaran kelas eksperimen diajarkan dengan menggunakan model pembelajaran kooperatif tipe TGT berbasis praktikum, sedangkan kelas kontrol diajarkan dengan model pembelajaran kooperatif tipe TGT tanpa praktikum. Teknik analisis data dilakukan dengan uji t dengan bantuan program SPSS 16.0 for windows. Hasil penelitian menunjukkan bahwa terjadi perbedaan yang signifikan penguasaan konsep terhadap siswa yang diajarkan melalui model pembelajaran TGT berbasis praktikum dengan siswa yang diajarkan dengan model pembelajaran kooperatif tipe TGT tanpa praktikum, dengan perbedaan keduanya pada taraf P 0,05, t hitung = 7,570 t tabel = 2,000 untuk penguasaan konsep. Dengan demikian, terdapat perbedaan yang signifikan penerapan model pembelajaran kooperatif tipe TGT berbasis praktikum terhadap penguasaan konsep siswa pada konsep sistem pencernaan manusia
Analisis Vegetasi Pantai Barat Aceh Pasca Tsunami
Get PDFThe objectivees of this research were; to acquered of vegetation in Banda Aceh beach after tsunami, to find expression about of composition, association, species diversity index (H), similarity index (IS), and species distribution pattern.The stage of research were; observation and segmentation of study area. The size of study area is 420 ha, and sample area is 10% of population. The station of sampling is (a). Meulaboh District Beach (MDB), (b). Aceh Jaya District Beach (AJDB), and Lhoknga District Beach (LDB). For each of sampling location a given ten sampling quadrat with five replication. total sample are 50 quadrats. The observated variable is number of spec ies, absolute diversity, absolute frequency, and absolute dominance. The calculated of importance value used formula is DR + FR + DMR., and calculated of species diversity index with Shannon-Wiener formula. The category of species diversity index is; if H1 very low category, H1-2 low category, H2-3 median category, and H3-4 high category.The result of this research are; (a). The vegetation physiognomy in Meulaboh District Beach, (b).Aceh Jaya District Beach, and Lhoknga District Beach were fundamental changed after tsunami, (c). The planting of mangrove species in Aceh West Beach didnt resulted yet optimalization, (d). Dominance of tree in Aceh West Beach were Casuarina equisetifolia, and Cocos nucifera, dominance of underbrush were Calatropis gigantea, and Vernonia cinerea, and dominance of herbs species were Ipomoea pescaprae, and Chloris barbata (5). The moment effort is necessary for serious reclamation in Aceh West Beach after tsunami specific
Penerapan Model Pembelajaran Children Learning In Science Untuk Meningkatkan Pemahaman Siswa Kelas IV SD Muhammadiyah Condongcatur Pada Konsep Bumi Dan Alam Semesta
Get PDFThis research is conducted to reveal : (1) the application of science study strategy with CLIS study model to improve the students understanding of earth and universe concept, (2) the science study strategy with CLIS study model to improve the academic attitude of students, (3) the teachers and students response to science study strategy with CLIS. Method of the research is a Classroom Action Research (CAR), consisting of three cycles. The data were collected using a test, an observation, and an interview. The result of the students concept understanding test was processed statistically using t-Test. The improvement of students understanding was corelated with Pearson Correlation Technique, while the interview and observation were described, then concluded. The result of data analysis indicate that the model of CLIS for universe and earth concept can improve the mastery of concept. In the first cycle action, it is seen that the acquirement of t0 was 9.069; in the second cycle the t value was 4.054; and in the third cycle it was 9.442; which is bigger than tt of only 2.025. It indicates that CLIS study method has improved the students concept understanding in every cycle. The correlation result of the first cycle indicates that the value of r is - 0.273; in the second cycle, the value of r was equal to 0.222. While in the third cycle, the value of r is 0.000. It indicates that the CLIS model study does not influence the improvement of the students academic attitude. This study model requires much longer time than study method usually used by the teacher, but the students are happy to study with CLIS study model
Akumulasi Logam Cadmium pada Organ Tiga Species Ikan di Perairan Krueng Keuretoe Kabupaten Aceh Utara
Get PDFPenelitian akumulasi logam cadmium bertujuan untuk (1) mengetahui organ yang mendominasi akumulasi logam cadmium pada tiga spesies ikan dan (2) mengetahui tingkat toleransi logam cadmium pada tiga spesies ikan di perairan Krueng Keureutoe Kabupaten Aceh Utara. Penelitian dilakukan di perairan Krueng Keuretoe Kabupaten Aceh Utara, pada bulan Maret sampai April 2013. Pengambilan ikan target dari Krueng Keuretoe dilakukan dengan jala, dan pancing menggunakan metode survei, sedangkan penetapan organ target dilakukan dengan metode bedah. Analisis organ yang mendominasi akumulasi ikan dilakukan dengan cara membandingkan antara organ lain yang terakumulasi cadmium, sedangkan analisis data tentang akumulasi logam cadmium dilakukan dengan metode AAS (Atomic Absorption Spectrophotometry). Hasil diperoleh adalah organ yang terkumulasi cadmium pada hepar berkisar antara 0,0130 0,0336 ppm, sedangkan tingkat akumulasi logam cadmium pada otot 0,0001-0,0299 ppm, dan pada cor berkisar 0,0008-0,0252 ppm. Kesimpulan diperoleh adalah organ yang paling dominan terakumulasi logam cadmium adalah hepar yang sudah melebihi nilai ambang batas baku mutu
AKIBAT INFEKSI Candida albicans DAN PEMBERIAN KORTIKOSTEROID MENYEBABKAN KONDISI IMUNOSUPRESI ORGAN BURSA FABRICIUS PADA AYAM PEDAGING
Get PDFPoultry sector remain problemed in animal health system. Several of infectious poultry diseases are spread across regions in Indonesia, such as Avian Influenza (AI), Newcastle Disease (ND), Infectious Bursal Disease (IBD), Cholera, Pullorum, Dwarfism, and Ascariasis. Candida albicans is a flora in a chicken otherwise in immunosuppression (immune system disorder) condition turned into a pathogen. One hundred day old broiler chickens (DOC) into four groups, divided into four groups. Group CC0 (control), fed with basal comercial nutrient, group CC1 chickens fed with basal and infected C. albicans (dose of 105 CFU/ml), group CC2, chickens fed with basal and treated by corticosteroids (3 mg/Kg), group CC3, fed with basal and treated by corticosteroids (3 mg/Kg) and infected C. albicans (dose of 105 CFU/ml). Each group contain 5 replications. Bursa of Fabrisius were collected for histopathology assay using Haematoxylin Eosin stained method. Haematoxylin Eosin stained method applied for HP assay. HP assayed cause Bursa of Fabricius were decreased of their activity. Based on research data obtained, this research concluded that corticosteroids and C. albicans infection resulted decreasing of lymphoid activity of chicken. Corticosteroids and infection C. albicans together were giving lower respon of lymphoid activity compore to each treatment of corticosteroid and C. albicans
VARIASI JENIS BAHAN BAKAR PADA PENGASAPAN IKAN BANDENG (Chanos-chanos Forskal ) MENGGUNAKAN ALAT PENGASAPAN TIPE KABINET
Get PDFThe milkfish represent one of the high commodities of protein and consumed many by society in Aceh. This research aim at to know influence of fuel type to quality of milkfish use appliance smoked of cabinet type. Time needed to degrade water concentration around 15% at coconut shell of coconut fuel is 4 hours, representing lower concentrate rate of water of smoked milkfish. Protein rate in milkfish smoked use fuel coconut shell is 32,75%, chaff of rice 27,18%, coconut coir 37,70%, and wood 27,09%. Fat rate of milkfish smoked use coconut shell of coconut fuel is 7,84%, chaff of rice 9,18%, coconut coir 7,13%, and wood 8,85%. In the test of organoleptik shell of coconut and coconut coir shows fish product which prefer either from form, colour, aroma and feel
KARAKTERISTIK PENGERINGAN TEPUNG BERAS MENGGUNAKAN ALAT PENGERING TIPE RAK
Get PDFThe study aims to enhance the quality and quantity of rice flour in drying process, especially when it is compared to the conventional sun drying. The rice flour was dried for 2 hours at different thickness of 1 and 1.5 cm. The temperatures were measured at several points of the dryers tray that is consisted of 4 layers, which was counted from the lowest layer as the first level. The samples were weighed in a small box which was put in the near border of the tray (box A) and in the centre of the tray (box B) for each layer. All measurements were done at interval of 15 minutes. Results showed that the temperature for drying the rice flour at depth 1.5 cm was 66 C, which was higher than that of drying the rice flour at depth 1 cm (60.5 C). In consequence, the relative humidity in the drying room at depth 1.5 cm was 35 %, which was lower than that of at depth 1 cm (61.8 %). However, the drying rate at depth 1.5 cm was lower than the drying rate at depth 1 cm. In addition, the distance of tray to the heater was also found to cause the low drying rate
Kemampuan Daya Hambat Beberapa Macam Sabun Antiseptik Terhadap Pertumbuhan Staphylococcus aureus dan Escherichia coli
Get PDFThis research is aimed to find out ability some kind antiseptic soaps inhibiting the growth of Staphylococcus aureus and Eschericia coli bacteria. The research method used Randomized Completely Block Design Sub Sampling with 6 treament and 3 replication, they are: antiseptic soap A, B, C, D, phenol 2% and aquadest. The group consist of S. aureus and E. coli bacteria. The inhibit experiment was done by using Kirby-Bauer methode. The parameter analyzed by using Analysis of Variance (ANOVA) continue with the Duncans Multiple Range Test (DMRT). The result showed that there were significant differences of inhibit zone that formed from both bacterias . The result of the antiseptic soap suspend inhibit zone, S. aureus bacteria has larger diameter than E. coli. Soap A, B, C and D with 50% concentrate toward both bacteria, each has average diameter 25, 16 mm, 15,6 mm, 11,5 mm and 9,83 mm while phenol has 15,0 mm. This result showed that soap A, B, and C has the equal ability to phenol 2%. Base on Duncan Multiple Range Test (DMRT), it is found out that the real differences of the inhibit zone between the two bacteria as well the real differences of treatment forward those bacteria (P0,05)
Perubahan Beberapa Sifat Fisika-Mekanika Akibat Lintasan Pengolahan Tanah Dengan Traktor Poros-Dua Pada Beberapa Lahan Miring Dan Dampaknya Terhadap Hasil Kedelai
Get PDFThe research aimed to investigate how far increasing frequency of tractor traffic tillage on slopy ground could deteriorate land stability and soil productivity has been carried out by observing and analyzing the changes of soil physical-mechanical properties underneath wheel tracks of a 2-WD tractor, at Andisols Order Soil. The experiment was conducted at the experimental field of Sare, gampoeng Aceh Village, Sub-province Aceh Besar, Aceh Province, from April up to September 2009. The altitude is 445 m above sea level. Research method employed, encompassing: (1) variance analysis due to factorial split-plot random design, to observe the effect of the treatments on soil productivity as indicated by soybean plant (Gycin max L.). The design consisted of three levels of treatments of land slope as the main plots, where: k1 = 0 -5 percent (relatively flat), k2 = 6 -10 percent (rather slopy), dan k3 = 11-15 percent (slopy/critical), and six levels of treatments of traffic tillage frequency as split plots, where: l0 = no traffic, l1 = one time traffic, l2 = three times traffic, l3 = five times traffic, l4 = seven times traffic, and l5 = nine times traffic, each at two replications, respectively; and (2) regression and correlation analysis that was used to observe the relation of traffic tillage frequency and changes of soil physical-mechanical properties as indications of land stability and productivity changes. Data observed were: soil bulk density, total porosity, stability index of soil aggregates, soil permeability, moisture content, soil consistency, soil plasticity, soil cne index, soil shear strength, and land productivity indicated by yield components of soybean plant, i.e.; root length, root weight, and yield of soybean plant. Results of the research generally indicated that maximum percentage of soil physical-mechanical changes occurred in k1 to k3 at l2 was tolerable for its soil stability index was greater than 30 in which the yield of soybean relatively low though, varied at the local level within 0.6-1.9 tonnes a hectare. Obtained from variance analysis the yield of soybean interacted significantly at l0-l5 as well as at k1-k3. Quantitatively, the results showed that the changes of soil physical-mechanical properties as well as growth components and yield of soybean were significantly different at increasing frequency of tillage traffic and land slopes. While qualitatively, obtained from regression-correlation analysis the above indication showed polynomial relations of a reliability R2 of 0.96 to 1.00 for yield of soybean plant and stability index of soil aggregates at increasing frequency of traffic tillage of l0-l5 in the three land slopes of k1-k3.