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All Journal Buletin PSP JURNAL PIJAR Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Biologi Tropis Albacore : Jurnal Penelitian Perikanan Laut Pendas : Jurnah Ilmiah Pendidikan Dasar Jurnal Pengabdian Magister Pendidikan IPA Jurnal Pengabdian Masyarakat Sains Indonesia (Indonesian Journal Of Science Community Services) Jurnal Ilmiah Profesi Pendidikan Journal of Classroom Action Research Jurnal Inovasi Pendidikan dan Sains Jurnal Pijar MIPA Jurnal Pendidikan dan Pengabdian Masyarakat
Karnan Karnan
Pendidikan Biologi FKIP Universitas Mataram
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Library & Information Science Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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Size Distribution of Mangrove Crabs (Scylla spp.) Caught By Fishermen in the Bagek Kembar Exclusive Ecosystem Area (KEE), Sekotong, West Lombok Laraswati, Lina Sapta; Syukur, Abdul; Karnan, Karnan; Mahrus, H.
Jurnal Pijar Mipa Vol. 20 No. 8 (2025): Special Issue
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i8.11184

Abstract

Mangrove crab (Scylla spp.) is one of the fishery commodities of high economic value that depends on the existence of mangrove ecosystems. The Bagek Kembar Exclusive Ecosystem Area (KEE) in Sekotong, West Lombok, is one of the important habitats for mangrove crabs and serves as the primary location for fishing activities by local fishermen. This study aims to determine the distribution of mangrove crab size caught by fishermen based on morphometric parameters, which include carapace length, carapace width, abdomen width, propodus length, propodus width, merus length, dactylus length, and plepod diameter. This type of research uses a descriptive research design with a quantitative approach. Sampling was conducted using purposive sampling, where mangrove crabs caught by fishermen at the research site were considered a representative sample of the population. Data analysis was conducted using descriptive statistics, which included calculating mean values, median, mode, and standard deviation, as well as analysing the frequency distribution of mangrove crab sizes. The determination of the number of classes and the interval of the frequency distribution class was carried out using Sturges' rule formula to describe the population structure of mangrove crabs. The study's results showed that most of the mangrove crabs caught were small to medium in size. The majority (65%) of crabs have a carapace length (PK) between 4–6 cm and are dominated by the juvenile or premature gonadal phase. The rarity of large individuals (>10 cm) suggests that crabs are significantly exploited before reaching their maximum adult size. This pattern also shows the role of KEE Bagek Kembar as a nursery ground dominated by juvenile individuals. Based on these findings, management efforts such as determining minimum catch sizes, protecting nursery habitats, increasing fishing gear selectivity, and long-term population monitoring are recommended to support the sustainability of mangrove crab stocks in this region.
Reproductive Aspects of Scad Fish (Selar crumenophthalmus) Landed at the Fish Landing Base of PPI Tanjung Luar, East Lombok Aldauria, Suciq; Karnan, Karnan; Yamin, M.; Merta, I Wayan
Jurnal Pijar Mipa Vol. 20 No. 8 (2025): Special Issue
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i8.11185

Abstract

Selar crumenophthalmus, known as the bigeye scad, is a commercially important small pelagic fish widely exploited in East Lombok waters. This study aims to examine the reproductive characteristics of the species, including gonadal maturity stages (GMS), gonadosomatic index (GSI), sex ratio, length–weight relationship, and length–fecundity relationship, based on samples collected at PPI Tanjung Luar from June to August 2025. This study employed a descriptive exploratory research design, with samples collected using quota sampling consisting of 90 individuals who landed at PPI Tanjung Luar from June to August 2025, and the data were analyzed descriptively. The species designated GMS I–V, with GMS II and III being the most dominant stages across months. The highest GSI values for both sexes occurred in June, indicating the peak spawning period, with female GSI reaching 2.34% and male GSI 0.80%. Monthly sex ratios shifted from 2.13:1 (June) to 0.64:1 (July) and 1:1 (August). The length–weight relationship showed positive allometric growth in males (b = 3.05) and negative allometric growth in females (b = 2.189). Fecundity ranged from 9,312–11,843 eggs in June and 8,495–15,006 eggs in July, with a strong positive correlation to body length in mature females. These findings indicate that reproduction peaks in June, providing essential information for the sustainable management of the species in Tanjung Luar.
Morphometric And Meristic Aspects of Lemuru Fish (Sardinella lemuru) Landed on Pancer Beach Banyuwangi Rida, Dea Yolanda Aulia; Karnan, Karnan; Santoso, Didik
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i1.11364

Abstract

Lemuru fish (Sardinella lemuru) is the main small pelagic commodity in the Bali Strait that has high economic value but is vulnerable to pressure on the surface. This study aims to analyze the morphometric and meristic characteristics of lemuru fish landed on Pancer beach, Banyuwangi. The research method used a descriptive survey with stratified random sampling techniques of 50 individuals in the period from October to December 2022.  The results of measurements on 23 morphometric variables showed that the total length was 9 ≤ 19 cm (92%), the standard length was 7 ≤ 17 cm (86%), the body width was 1 ≤ 11 cm (90%), the height of the body was 2 ≤ 10 cm (88%), the height of the tail rod was 1 ≤ 9 cm (84%), the length of the tail rod was 1 ≤ 9 cm (96%), the length of the ventral fin was 1 ≤ 9 cm (90%),  Pectoral fin length 1 ≤ 13 cm (98%), Eye diameter 1 ≤ 9 cm (90%) and weight 10 ≤ 24 g (98%). Meanwhile, the calculation of 14 meristic variables of lemuru fish showed that: Number of Hard Dorsal Radius 2 ≤ 12 (88%), Number of Weak Dorsal Radius 3 ≤ 13 (96%), Number of Hard Anal Fin Fingers 2 ≤ 6 (86%), Number of Weak Anal Fin Fingers 2 ≤ 8 (88%), Number of Scales on Lateral Stripes 54 ≤ 67 (78%), Number of Scales Around the Body 33 ≤ 41 (60%), Number of Scales on Side Lines 5 ≤ 17 (94%),  The number of scales below the side line is 10 ≤ 20 (94%).
Respon Guru, Siswa, dan Keterlaksanaan Pembelajaran Modul IPA Berbasis Etnosains di SMPN 1 Pujut Muhsin, Lalu Syukran; Syukur, Abdul; Karnan, Karnan
Jurnal Ilmiah Profesi Pendidikan Vol. 11 No. 1 (2026): Februari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jipp.v11i1.4483

Abstract

Pembelajaran IPA berbasis etnosains mengintegrasikan kearifan lokal ke dalam pembelajaran sehingga pembelajaran menjadi lebih kontekstual dan bermakna bagi peserta didik. Penggunaan modul IPA berbasis etnosains diharapkan dapat mendukung proses pembelajaran IPA di sekolah. Penelitian ini bertujuan untuk mendeskripsikan respon guru, respon siswa, dan keterlaksanaan pembelajaran pada penggunaan modul IPA berbasis etnosains di SMPN 1 Pujut. Penelitian ini menggunakan pendekatan deskriptif kuantitatif dengan subjek penelitian guru IPA dan peserta didik SMPN 1 Pujut. Data dikumpulkan melalui angket respon guru, angket respon siswa, dan lembar observasi keterlaksanaan pembelajaran, kemudian dianalisis menggunakan analisis deskriptif kuantitatif dalam bentuk persentase. Hasil penelitian menunjukkan bahwa respon guru terhadap modul IPA berbasis etnosains berada pada kategori sangat baik dengan persentase 74%–84%, sedangkan respon siswa berada pada kategori sangat baik dengan persentase 68%–77%. Keterlaksanaan pembelajaran menggunakan modul IPA berbasis etnosains mencapai nilai rata-rata sebesar 83,6% dengan kategori sangat baik. Berdasarkan hasil tersebut, modul IPA berbasis etnosains dinyatakan praktis dan layak digunakan sebagai sumber belajar pendukung dalam pembelajaran IPA di SMP.
Co-Authors A. Wahab Jufri A. Wahyuli A.A. Ketut Agung Cahyawan W Abdul Syukur Abdul Syukur Abdul Syukur Abdul Syukur Abdul Syukur Agil Al Idrus Agil Al Idrus Ahmad Raksun Ahmad Raksun Ahmad Raksun Ahmad Raksun Ahmad Raksun Ahmad Raksun, Ahmad Alawiyah, Rita Aldauria, Suciq Aldri Frinaldi Alpiansah, Hairul Arif Safrillah Azfani, Lalu Ahmad Azizah, Norma B. A. Janiarti Baiq Diana Safitri Baiq Sri Handayani Baiq Sri Handayani Baiq Sri Handayani Budhi H. Iskandar Bukhari Abdillah Chatarina Umbul Wahyuni Dadi Setiadi Dianam DIDIK SANTOSO Didik Santoso Didik Santoso Diniah, Siti Eliyan Irmasari Ernani Lubis F. F. F. Putri Fahira Putri Utami Fariah, Lailatul Fitriyani Fitriyani Gede Mertha Gito Hadiprayitno Gito Hadiprayitno Gito Hadiprayitno Gusfina, Omira Calia Habibah Hafizatil Adni Handayani, Sri Hilmi, Masnayati Husain, Pahmi I Gde Mertha I Gde Mertha I Wayan Merta I Wayan Merta I Wayan Merta Ilhamdi, M. Liwa Ilhamdi, Mohammad Liwa Imam Bachtiar Imami, Vines Salsa Insani, Reginah Fhathonah Intan Putri Yasa Intiana, Rohana Hariana Irawan, Jono Izza Melati Sukma Jamaluddin Jamaluddin Jamaluddin Jamaluddin Khairuddin Khairuddin Khairuddin Khairuddin Khairuddin Khairuddin Kusuma, Anindita Suliya Hangesti Mandra L. Lisnawati Lalu Japa Lalu Japa Lalu Japa Lalu Japa Lalu Japa Lalu Japa, Lalu Lalu Zulkifli LALU ZULKIFLI Laraswati, Lina Sapta Lidia Zindarti Nurmia Lidya Hasmaningsih Lina Maulina Linda Lestari Lulu Febrianti M. Yamin M. Yamin M. Yamin M. Yamin Mahrus Mahrus Mahrus Mahrus Mahrus, Mahrus Mahrus, H. Mahyuni Mahyuni Mahyuni Mahyuni Mahyuni Manisa, Safariyanti MARDIANA MELATI, PUPUT Merta , I Wayan Moh. Liwa Ilhamdi, Moh. Liwa Mohammad Liwa Ilhamdi Mohammad Liwa Ilhamdi Muh Fahmi Zuhdi Muhlis Muhlis Muhlis Muhsin, Lalu Syukran Mulyani, Irna Mulyono S. Baskoro Mustaruddin Nanisfi, Maulidatin Ni Luh Putu Pebri Artayani . Ni Nyoman Muliaheni Niarni, Baiq Gina Amalia Nila Sari NURUL HIDAYAH Nurwijayanti PRAPTI SEDIJANI, PRAPTI Priyo Hartanto Purnamawati, Rena Putri, Luh Putu Sasmita Sridewi Putu Artayasa Rayyana Renita, Octa Rida, Dea Yolanda Aulia Rispawati Rispawati Rispawati Rispawati, Rispawati Rohana Hariana Intiana Rohani S. Rohana Hariana Intiana Safarianti Manisa Safruddin Safruddin Sirni Hadriwani Suganda, M. Tomy Aria Sulistia Ningrum Suliyadi, Suliyadi SUYANTRI, ENI Syachruddin AR Syafro’ Khuluq Jam’iyyah Syamsul Bahri Tri Ayu Lestari Umami, Lia Ummi Auliya’ Amalina W. Apriani Wahyuningsih Wahyuningsih Wardatul Uyun Winata, I Gede Darma Z. Thifali Z. Unsalhusna Zulhaida, Maria