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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Biologi Tropis
Wiwid Andriyani Lestariningsih
Universitas Mataram
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Immunology & microbiology Materials Science & Nanotechnology Physics

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Community Structure and Health Conditions of Mangrove in Sabu Raijua Fakhrurrozi Fakhrurrozi; Zihan Yuniar; Muhammad Harun; Wiwid Andriyani Lestariningsih; Ibadur Rahman
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June
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.v23i2.4626

Abstract

Mangrove ecosystem has an important role for the coastal ecosystem in Sabu Raijua which is included in the TNP Laut Sawu conservation area. Its designation as a water conservation area indicates that the area is an important for the protection of fishery diversity and other marine resources. Mangroves play an important role for the diversity of marine biota because of their role as a breeding ground, foraging, and nursery ground for various types of marine biota. For this reason, the role of mangrove ecosystems as supporting conservation areas is very important. The functioning of the mangrove ecosystem can be seen based on the community structure and ecosystem quality conditions. This study aims to determine the condition of the community structure and health conditions of mangroves on Sabu Raijua Island. The survey location was obtained at 5 observation stations spread across Sabu Island. The results showed that 8 species of mangrove were identified with the dominance of Mangrove Lumnitzera racemosa with an IVI value of 191%. The percentage of canopy cover found ranged from 33 – 58% with an average value of 46%. Density ranges from 23 – 45 ind/plot, with an average of 31 ind/plot. The Mangrove Health Index (MHI) value in was 36.51 ± 14.05% which is included in the Moderate category. The high value of the standard deviation (14.05) indicates that there are still mangrove locations in Sabu Raijua that have poor conditions (Poor).
Identifikasi Biologi Gurita dan Nilai Indeks Untuk Pengelolaan Perikanan di Kawasan Selat Alas Nusa Tenggara Barat Muhammad Marzuki; Damai Diniariwisan; Wiwid Andriyani Lestariningsih
Jurnal Penelitian Pendidikan IPA Vol 9 No 12 (2023): December
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i12.5956

Abstract

Octopus is an important economic fishery commodity that has a high price and is a source of foreign exchange for the country, especially for fishermen in the West Nusa Tenggara region. The utilization status of the octopus fishery is not known yet and managed well for its purposes. This research aims to determine existing conditions, growth patterns, body shape, age group and condition factors, as well as to determine the index value and desired status of the biological dimensions of octopus fisheries management. The method used in this research is descriptive, where data is obtained from samples obtained from nature. The research results showed that the growth pattern of octopus caught in the waters of Alas Strait and landed on Ketapang beach, East Lombok Regency was negative allometric with a b value of 1.4516. Meanwhile, the octopus's body shape is in the less flat category with a condition factor (K) value of 1.91, with a length range between 25 cm - 60 cm. The status of stopping octopus management from the biological dimension obtained a value of 58.53% with quite sustainable status. 
Co-Authors Damai Diniariwisan Fakhrurrozi Fakhrurrozi Hery Widijanto Muhammad Harun Muhammad Marzuki Zihan Yuniar