Article Per Year (5 Year)
p-Index From 2020 - 2025
8.013
P-Index
This Author published in this journals
All Journal Buletin PSP JURNAL PIJAR Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Biologi Tropis Albacore : Jurnal Penelitian Perikanan Laut 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 Immunology & microbiology Library & Information Science Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

Published : 76 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 76 Documents
Search

 4   5   6   7   8 
The Analysis of Population Structure of Mud Crab (Scylla serrata) in The Mangrove Forest Area of Bagek Kembar, West Lombok Hilmi, Masnayati; Karnan, Karnan; Ilhamdi, Mohammad Liwa
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): 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.v24i1.6683

Abstract

Scylla serrata is one of the species included in the mangrove forest ecosystem which has high economic value for human life. Seeing that mud crabs have high economic potential both domestically and abroad with a fairly high level of demand and abundant availability of catches in nature, concerns arise about the condition of their population. This research aims to determine the population structure of mangrove crabs in the Bagek Kembar Mangrove Forest Area, West Lombok. The method used is purposive sampling. Sampling was carried out at 3 stations representing the entire research location area, namely on the seafront, in the middle and farthest from the arena facing the sea. Each station has its own characteristics. The distance between stations is 50 m. Each station is installed 6 folding trap with a distance between trap 10 m. The length, width, and high size are 50 cm, 30 cm, and 15 cm respectively. This tools are completed by 3 mm mesh size. The results of the research showed that the carapace length of male and female mud crabs that were mostly caught was in the 3 – 4.5 cm and 2.5 – 4.0 cm classes. The carapace width of male and female mud crabs most often caught is in the range of 4.4 – 6.5 cm and 3.5 – 5.5 cm. And the weight of the most commonly caught male and female mud crabs was in the class range of 11.39 – 111.5 grams and 13.77 – 74.5 grams. This research concludes that mangrove crabs that live in the Bagek Kembar Mangrove Forest Area, West Lombok, based on gender, carapace length, carapace width and body weight, are dominated by juveniles. Only a limited number reach catch size.
Abundance and Distribution Patterns of Oysters (Saccostrea cucullata) in the Bagek Kembar Mangrove Area, West Lombok Umami, Lia; Karnan, Karnan; Santoso, Didik
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
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.v24i3.7200

Abstract

An invertebrate critter called Saccostrea cucullata is typically found adhering to substrates like rocks and mangrove roots. The purpose of this study is to ascertain S. cucullata's abundance and distribution patterns. This study was carried out at West Lombok's Bagek Kembar Sekotong Natural Mangrove Area in February 2024. The samples were observed using the 5 x 5 m quadratic transect approach. To ascertain S. cucullata abundance and dispersion patterns, descriptive analysis was performed on the data. According to the study's findings, station I had the greatest abundance (1.81 Ind/m2), while station III had the lowest (0.95 Ind/m2). S. cucullata exhibits a clustered and uniform distribution pattern in certain areas. In the research region, temperature, salinity, and pH are the main factors affecting S. cucullata abundance and dispersion pattern, respectively.
Analysis of Morphometric Characteristics of Indian Mackerel (Rastrelliger kanagurta Cuvier, 1816) Landed at the Fish Landing Base Tanjung Luar, East Lombok Putri, Luh Putu Sasmita Sridewi; Karnan, Karnan; Santoso, Didik
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
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.v24i3.7376

Abstract

Indian mackerel (Rastrelliger kanagurta) is a small pelagic fish species that has economic value to the community. Overfishing without management causes population decline and negative impacts on fish stocks. This study aims to analyze the morphometric characteristics of indian mackerel at Tanjung Luar Fish Landing Base (PPI), East Lombok. Data from 72 fish were collected from January to April 2024 using observation method and quantitative statistical analysis. The results of descriptive analysis showed that indian mackerel landed in Tanjung Luar PPI had average morphometric characteristics such as total length (22.07cm), standard length (18.75cm), fork length (20,35cm), head length (5.23cm), head height (4.47cm), body height (5.7cm), eye diameter (1.32cm), first dorsal fin base length (3.27cm), second dorsal fin base length (2.89cm), pectoral fin base length (2.60cm), ventral fin base length (2.35cm), anal fin base length (2.61cm), tail shaft length (4.14cm), tail shaft height (0.96cm), lower tail fin length (4.28 cm), and upper tail fin length (4.24cm). Fish growth showed an isometric growth pattern, with body parts growing proportionally. The dominant fish sizes caught were in the juvenile category at 18.2-20.6 cm (44%) and adults at 25.7-28.1 cm (28%). However, the large number of juvenile fish caught indicates the potential for overfishing, requiring effective management such as setting minimum size and fishing time to maintain the sustainability of the fish population.
The Morphometrics of Mangrove Crabs (Scylla serrata) in the Essential Ecosystem Area (KEE) of Bagek Kembar Mangrove Forest, Sekotong, West Lombok Diniah, Siti; Karnan, Karnan; Suyantri, Eni
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
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.v24i3.7513

Abstract

The intensive harvesting of Mangrove Crabs (Scylla serrata) has led to a significant decline in the population density of Scylla serrata in mangrove areas. Overfishing has resulted in a decrease in both the number and size of individual Mangrove Crabs and has altered the structure and composition of the population. This research aims to understand the morphometric characteristics of Scylla serrata, which will help sustain the population and protect mangrove areas as the native habitat for Scylla serrata and other organisms. Therefore, this study contributes to conservation and sustainable management efforts to ensure biodiversity. This type of research is descriptive-exploratory and aims to identify and analyze the size variations of Scylla serrata. The study was conducted at four points in the Essential Ecosystem Area (EEA) of Bagek Kembar Mangrove Forest, Sekotong, West Lombok, in both natural and rehabilitated zones. The results of this study found that the ratio of female to male Mangrove Crabs is 36:32, with females being more dominant in number. The morphometric characteristics of Mangrove Crabs in the Bagek Kembar Essential Ecosystem Area showed relatively uniform sizes across all sampling points, but some characteristics such as dactyl length, weight, and dactyl width showed significant differences, which may be influenced by the physiological condition of Scylla serrata and habitat conditions.
Reproductive Aspects of Scad Fish (Decapterus macarellus) Landed at The Fish Landing Base of Tanjung Luar, East Lombok Winata, I Gede Darma; Karnan, Karnan; Mahrus, Mahrus
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - Desember
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.v24i4.7991

Abstract

Scad fish (Decapterus macarellus) is a fish of important economic value, this fish is the main target of fishermen in Tanjung Luar East Lombok but information about its existence biologically has never been research.This study intended to analyze the reproductive aspects of the scad fish landed at PPI Tanjung Luar, East Lombok, based on sex ratio, length-weight relationship, gonad maturity level, gonad weight, and Gonadosomatic Index (GSI). The sampling technique was quota  implemented to get 270 scad fish from March to May 2024. Simple regression linear was applied to analyze the relationship between length and weight of scad fish. This research showed that: 1) the sex ratio of scad fish in the study site was varied, that is  0.58:1; 0.88:1; and 0.58:1 for in March, April, and May respectively, 2) the growth pattern of scad fish in the study site is negative allometric, 3) the gonad's maturity stages dominated by stage of I and II, This shows that the kite fish is still in an immature condition. and 4) the gonadal somatic index indicates that the fish can spawn more than once a year.
Pengenalan Komunitas Mikroalga untuk Penguatan Literasi Kebaharian pada Siswa SMA Negeri 1 Sekotong Lombok Barat Japa, Lalu; Karnan; Ahmad Raksun; Didik Santoso; Gito Hadiprayitno; Safarianti Manisa; Syafro’ Khuluq Jam’iyyah
Jurnal Pengabdian Magister Pendidikan IPA Vol 8 No 4 (2025): Oktober-Desember 2025
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v8i4.13115

Abstract

Kawasan Ekosistem Essensial (KEE) Bagek Kembar, Sekotong Lombok Barat, meliputi daratan dan perairan pesisir sangat penting artinya bagi masyarakat sekaligus paling besar menanggung beban akibat berbagai aktivitas di dalamnya. Aktivitas masyarakat di sekitar KEE Bagek Kembar, meliputi kegiatan pertanian, peternakan, perikanan, ekploitasi sumber daya alam dan jasa lingkungan. Menyadari pentingnya pelestarian sumber daya pesisir dan laut, maka diperlukan upaya nyata dalam pengendalian dampak negetif yang terjadi akibat berbagai aktivitas yang terjadi di dalamnya. Komunitas fitoplankton (mikroalga) seringkali digunakan sebagai tolok ukur kesehatan lingkungan perairan. Salah satu upaya pengendalian dimaksud di atas adalah melalui jalur pendidikan formal di sekolah yaitu penanaman cinta bahari sejak dini agar sumber daya kebaharian dapat dilestarikan dan pemanfaatannya bisa berkelanjutan. Kegiatan pengabdian ini bertujuan untuk: (1) Memperkenalkan komunitas mikroalga sekaligus meningkatkan literasi kebaharian pada siswa kelas alam SMAN 1 Sekotong, sebagai salah satu sekolah yang berada di wilayah KEE Bagek Kembar Desa Cendi Manik, Sekotong, Lombok Barat. Siswa kelas alam SMAN 1 Sekotong dilibatkan secara aktif dalam pembelajaran klasikal dan diskusi terkait materi tentang komunitas mikroalga dalam upaya peningkatan pengetahuan dan penguatan literasi kebaharian mereka. Kegiatan pengabdian ini diharapkan juga dapat menjadi penguatan dan pengayaan pengetahuan terhadap materi mata pelajaran biologi khususnya. Pengetahuan tentang komunitas mikroalga selanjutkan dapat memperkaya literasi kebaharian siswa kelas alam SMAN 1 Sekotong Lombok Barat. Dalam jangka panjang, kegiatan pengabdian ini diharapakan bisa menghasilkan suatu model pembelajaran terintegrasi guna meningkatkan literasi kebaharian siswa dimana pengetahuan kebaharian dimasukkan sebagai bagian dari bahan yang diajarkan (silabus) dalam pembelajaran materi biologi di sekolah, khususnya SMAN 1 Sekotong Lombok Barat.
Co-Authors A. Wahab Jufri A. Wahyuli A.A. Ketut Agung Cahyawan W Abdul Syukur 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 Aldri Frinaldi Alpiansah, Hairul Arif Safrillah B. A. Janiarti Baiq Diana Safitri Baiq Sri Handayani Baiq Sri Handayani Baiq Sri Handayani Budhi H. Iskandar Bukhari Abdillah Dadi Setiadi Dianam Didik Santoso Didik Santoso DIDIK SANTOSO Diniah, Siti Eliyan Irmasari Eni Suyantri 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 Gede Darma Winata I Wayan Merta I Wayan Merta I Wayan Merta Ilhamdi, Mohammad Liwa Imam Bachtiar Intan Putri Yasa Intiana, Rohana Hariana Izza Melati Sukma Jamaluddin Jamaluddin Jamaluddin Jamaluddin Khairuddin Khairuddin Khairuddin Khairuddin Khairuddin Khairuddin Lalu Ahmad Azfani Lalu Japa Lalu Japa Lalu Japa Lalu Japa Lalu Japa Lalu Japa, Lalu Lalu Zulkifli LALU ZULKIFLI Lidia Zindarti Nurmia Lidya Hasmaningsih Lina Maulina Linda Lestari Lisnawati Lisnawati Lulu Febrianti M. Liwa Ilhamdi M. Yamin M. Yamin M. Yamin Mahrus Mahrus Mahrus Mahrus Mahrus, Mahrus Mahyuni Mahyuni Mahyuni Mahyuni Mahyuni Manisa, Safariyanti MARDIANA Masnayati Hilmi Maulidatin Nanisfi Merta , I Wayan Moh. Liwa Ilhamdi, Moh. Liwa Mohammad Liwa Ilhamdi Mohammad Liwa Ilhamdi Muh Fahmi Zuhdi Muhlis Muhlis Muhlis Mulyani, Irna Mulyono S. Baskoro Mustaruddin Ni Luh Putu Pebri Artayani . Nila Sari Norma Azizah PRAPTI SEDIJANI, PRAPTI Priyo Hartanto Purnamawati, Rena Putri, Luh Putu Sasmita Sridewi Putu Artayasa Rayyana Reginah Fhathonah Insani Renita, Octa Rispawati Rispawati Rispawati Rispawati, Rispawati Rita Alawiyah Rohana Hariana Intiana Rohani S. Rohana Hariana Intiana Safarianti Manisa Safruddin Safruddin Safruddin Sirni Hadriwani Siti Diniah 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 Vines Salsa Imami W. Apriani Wahyuningsih Wahyuningsih Wardatul Uyun Winata, I Gede Darma Z. Thifali Z. Unsalhusna Zulhaida, Maria