Claim Missing Document
Check
Articles

Found 28 Documents
Search

Hubungan Kualitas Perairan Dengan Kepadatan Populasi Ikan Terubuk (Tenualosa ilisha) Di Sungai Bilah Kabupaten Labuhanbatu Machrizal, Rusdi; Dimenta, Rivo Hasper; Khairul, Khairul
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 5, No 2: Jurnal Pembelajaran Dan Biologi Nukleus September 2019
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v5i2.1375

Abstract

Penelitian ini bertujuan untuk menganalisis hubungan parameter kualitas air dengan kepadatan populasi ikan Terubuk (Tenualosa ilisha) di Sungai Bilah, Kabupaten Labuhanbatu. Pengambilan sampel dilakukan pada bulan Februari – April 2019 dengan metode ekplorasi. Ikan terubuk ditangkap menggunakan jaring insang dengan 3 ukuran berbeda, 2, 3, dan 4 inchi. Titik sampling di bagi menjadi tiga lokasi berdasarkan informasi nelayan setempat. Parameter kualitas air yang diamati meliputi suhu, salinitas, pH, DO, BOD, COD, Nitrat dan Posfat. Analisis hubungan parameter kualitas air dengan kepadatan populasi ikan dilakukan dengan menggunakan bantuan perangkat lunak SPSS ver 22 for windows. Hasil penelitian menunjukkan kepadatan populasi ikan terubuk berada diantara 0,39-1,14 ekor/100 m2. Analisis korelasi memperlihatkan bahwa terdapat korelasi searah antara suhu dan salinitas terhadap kepadatan populasi ikan terubuk (T. ilisha) dengan nilai koefisien masing-masing 1,00 (suhu) dan 0,976 (salinitas). Oleh karena itu dapat disimpulkan bahwa suhu dan salinitas merupakan faktor yang mempengaruhi kepadatan populasi ikan terubuk (T. ilisha) di Sungai Bilah
Informasi Morfologi Reproduksi Dan Nisbah Kelamin Udang Mantis Cloridopsis scorpio (Latreile, 1828) Di Perairan Ekosistem Mangrove Belawan Dimenta, Rivo Hasper; Machrizal, Rusdi; Khairul, Khairul
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 5, No 2: Jurnal Pembelajaran Dan Biologi Nukleus September 2019
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v5i2.1462

Abstract

Penelitian yang dilakukan untuk mengetahui morfologi alat reproduksi dan nisbah kelamin jantan-betina pada udang mantis Cloridopsis scorpio telah dilakukan selama 3 bulan, sejak bulan Maret hingga Mei 2019 pada perairan ekosistem mangrove Belawan. Pengambilan sampel udang mantis Cloridopsis scorpio dilakukan menggunakan jaring ambai berbahan nilon polyfilament dengan peletakan posisi jaring melawan pergerakan arus air. Penentuan stasiun pengamatan ditetapkan dengan metode purposive random sampling sehingga diharapkan dapat memperoleh data yang mewakili lokasi. Data nisbah kelamin dianalisis menggunakan analisis chi-square (χ2) (Sugiono, 2006) dan data sebaran frekuensi matang gonad udang dianalisa dengan rumus Walpole (1993). Hasil analisis nisbah kelamin menunjukkan nisbah kelamin jantan C. scorpio lebih sedikit dibandingkan betina dengan perolehan nilai chi-square hitung > chi-square tabel(0,05.10) (63,20 >18,30). Dari hasil analisa data sebaran frekuensi udang ditemukan C. scorpio kategori belum matang gonad (BMG) paling banyak ditemukan pada ekosistem mangrove Belawan dengan selang ukuran panjang tubuh 32 mm hingga 128,72 mm, dan udang mantis yang matang gonad (MG) ditemukan mulai pada selang kelas ukuran panjang tubuh 128,72 mm hingga 298,00 mm Kata kunci: Belawan, Nisbah Kelamin, Cloridopsis scorpio, Reproduksi
Exploring Factors Affecting Students’ Difficulties in Learning Science at MTs Raudlatul ‘Uluum Aek Nabara Junior High School: Focus on Animal and Plant Reproduction Materials Ananda, Tasya Dhea; Dimenta, Rivo Hasper; Nazliah, Rahmi
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i1.6992

Abstract

The learning process is inseparable from internal and external obstacles experienced by individual students. When students fail to meet the established learning standards, we categorize them as learning difficulties. This study aims to analyze the factors of learning difficulties experienced by MTs Raudlatul ‘Uluum students in the science subject of animal and plant reproduction. Therefore, this research information will be an indicator in efforts to create conducive learning conditions and environments in this school. This study used a quantitative descriptive method with a total sampling technique. The data were collected using interviews, questionnaires, and documentation of student grades. In the study, it was found that students' learning problems are affected by their interest (88.56%), intelligence (81.22%), and health (78.29%); by social influences at school (78.02%); and by the method learning (77.45% with practicums and 73.93% with instruments). Learning difficulties faced by students who are in the puberty stage need attention so that the improvement of students' abilities, skills, and talents at school can be explored optimally 
Keanekaragaman Makrozoobentos pada Ekosistem Lamun di Perairan Natal Sumatera Utara Rusdi Machrizal; Khairul Khairul; Rivo Hasper Dimenta
Gorontalo Fisheries Journal Volume 3 Nomor 1 April 2020
Publisher : Universitas Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32662/gfj.v3i1.998

Abstract

Makrozoobentos merupakan kelompok hewan yang hidup dasar perairan dan sering ditemukan hidup berasosiasi dengan organisme lain. Penelitian ini dilakukan untuk menganalisis jenis-jenis makrozoobentos yang hidup berasosiasi dengan ekosistem lamun di perairan Pantai Natal. Penelitian ini merupakan penelitian deskriptif eksploratif dimana stasiun pengamatan ditentukan berdasarkan informasi dari nelayan setempat terkait keberadaan ekosistem lamun.  Data yang dianalisis adalah Indeks keanekaragaman (H’), Indeks Dominansi (C), dan Indeks Similaritas (IS). Keseluruhan analisis data menggunakan bantuan perangkat lunak komputer Plymouth Routines software in Multivariate Research Version 7. Hasil penelitian menunjukkan terdapat 25 spesies yang terbagi menjadi 6 Klas yang hidup berasosiasi dengan ekosistem lamun di perairan Natal. Indeks keanekaragaman (H’) berada dalam kategori keanekaragaman sedang dengan nilai 2,89-2,98, sementara itu Indeks Dominansi berada pada kategori rendah dengan nilai 0,003-0,005. Selanjutnya diperoleh tingkat kesamaan (similaritas) terhadap spesies penyusun komunitas makrozoobentos dengan tingkat kesamaan tinggi (IS 93,62-100%).
PENGARUH PEMBELAJARAN OUTDOOR BERBASIS PAIKEM TERHADAP PEMAHAMAN KONSEP EKOSISTEM PADA SISWA KELAS VII DI SMP SWASTA MUHAMMADIYAH 35 SIGAMBAL Adesti, Wiki; Nazliah, Rahmi; Dimenta, Rivo Hasper
JURNAL MAHASISWA PENDIDIKAN Vol 6, No 1 (2025)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jmapen.v6i1.8035

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh pembelajaran outdoor berbasis PAIKEM terhadap pemahaman konsep ekosistem siswa kelas VII di SMP Swasta Muhammadiyah 35 Sigambal. Metode penelitian yang digunakan adalah eksperimen semu (quasi-experimental) dengan desain pretest-posttest control group design. Populasi penelitian adalah seluruh siswa kelas VII sebanyak 122 siswa, dengan sampel 60 siswa yang terbagi menjadi kelas eksperimen (30 siswa) dan kelas kontrol (30 siswa). Teknik pengumpulan data menggunakan tes pilihan ganda dan angket. Analisis data dilakukan dengan uji normalitas Shapiro- Wilk, uji homogenitas Levene's Test, dan uji t independen. Hasil penelitian menunjukkan bahwa: (1) Terdapat peningkatan pemahaman konsep ekosistem yang signifikan pada kelas eksperimen dengan rata-rata nilai post-test 79,67 (meningkat 33,34 poin dari pre-test 46,33), sedangkan kelas kontrol hanya meningkat 19,66 poin; (2) Uji t menunjukkan perbedaan signifikan antara kedua kelompok (t = 11,283; p < 0,05); (3) Respon siswa terhadap pembelajaran outdoor berbasis PAIKEM sangat positif dengan 85% siswa menyatakan lebih termotivasi.Temuan ini mendukung teori konstruktivisme dan penelitian sebelumnya yang menyatakan bahwa pembelajaran berbasis pengalaman langsung efektif meningkatkan pemahaman konsep. Penelitian ini merekomendasikan penggunaan pembelajaran outdoor berbasis PAIKEM untuk pengajaran konsep ekosistem di sekolah.
Design of an e-encyclopedia of the order of odonata from sumatra as student teaching material Siregar, Nurul Safitri; Dimenta, Rivo Hasper; Sari, Novi Fitriandika
JPBIO (Jurnal Pendidikan Biologi) Vol 9, No 1 (2024): April 2024
Publisher : STKIP Persada Khatulistiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/jpbio.v9i1.3397

Abstract

This research discusses the design of the E-Encyclopedia of the Order of Odonata as teaching material for junior high school students. This research aims to introduce how to design an E-encyclopedia of the Order of Odonata from Sumatra which can be used as teaching material for junior high school students, especially children aged (13-15 years) in the Sumatra region. The urgency is that junior high school children become familiar with the various types of the Odonata Order from Sumatra so that the identity of the Odonata Order is maintained and maintained. This research is design research consisting of three phases, namely Preliminary research, Prototyping phase, and assessment phase. The design of the E-Encyclopedia of the Odonata Order from Sumatra is an effort to develop media in studying various types of the Odonata Order from Sumatra whose development is viewed from language, material, and media. Through the development activities carried out, an E-Encyclopedia Product of the Order of Odonata from Sumatra was obtained as suitable teaching material.
Analisis Metode Praktikum Berbasis Literasi Sains pada Pembelajaran IPA Kelas VII di SMP Swasta Bhayangkari 3 Sari, Ginanjar; Sari, Novi Fitriandika; Dimenta, Rivo Hasper
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i1.12155

Abstract

Studies on contemporary scientific education have shown that classroom teaching has an impact on students' use of literacy-deficient practical exercises. Consequently, the existing approach of teaching science is significantly deficient and must be substituted. The objective of this descriptive qualitative research is to assess the effectiveness of the Science Literacy-Based Practicum Method in Science Instruction for seventh grade students at SMP Swasta Bhayangkari 3. The sample for this study consisted of thirty seventh graders from SMP Swasta Bhayangkari. Both teachers and students were provided with a questionnaire to complete, and data was gathered via interviews based on their responses. The results indicate that 19.94% of students demonstrate a strong understanding of scientifically explaining phenomena. Additionally, 8.60% of students are able to evaluate and design scientific investigations, while 9.28% of students understand how to interpret data and evidence. According to the findings of this research, integrating a practicum focused on literacy into the learning process is an effective method for promoting student performance and attaining learning goals.
KARAKTERISTIK HABITAT IKAN CUPANG LIAR (WILD BETTA) ENDEMIK SEBAGAI DASAR PENGEMBANGAN POTENSI BUDIDAYA DI KABUPATEN LABUHANBATU RAYA Rifai, Ahmad; Khairul, Khairul; Dimenta, Rivo Hasper; Siregar, Zunaidy Abdullah
Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Vol 21 No 2 (2023): Jurnal Agroqua
Publisher : University of Prof. Dr. Hazairin, SH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/ja.v21i2.4031

Abstract

Wild betta fish has high economic value as one of the ornamental fish commodities in Indonesia.  The potential for cultivation development so far has not been maximized so that it still relies on the results of capture from nature. The main key to the development of wild fish farming is actually dependent on food conversion and water quality. Water quality management must adjust to its habitat in nature, however, the study of the physical chemical parameters of wild betta fish waters endemic to Sumatra has not been widely reported. Studies related to habitat characteristics can be used as the basis for aquaculture management in the future. This study aims to analyze the condition of the physical parameters of aquatic chemistry in the natural habitat of wild betta fish in the Regency Labuhanbatu Selatan, Labuhanbatu, and Labuhanbatu Utara. This research is exlorative by observing physical and chemical factors carried out insitu and exitu. The research data is analyzed quantitatively, presented discriptively and discussed based on relevant literature. The results of the main component analysis (Principal Component Analysis) show the main characteristic parameters of wild betta fish habitat in the form of: BOD, COD, DO, conductivity, temperature, and pH. Based on the results of UPGMA analysis, the percentage of similarity of stations 1 and 2 (90.5%) while station 3 (83.6%). It was concluded that the key parameters for wild betta fish farming activities are BOD, COD, DO, conductivity, temperature, and pH and these parameters need to be measured continuously.