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All Journal GANEC SWARA
DAMAI DINIARIWISAN
Program Studi Budidaya Perairan, Fakultas Pertanian, Universitas Mataram
Agriculture, Biological Sciences & Forestry Education Engineering Law, Crime, Criminology & Criminal Justice Social Sciences

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IDENTIFIKASI DIMENSI BIOLOGI GURITA DI PANTAI KETAPANG LOMBOK TIMUR UNTUK PENGELOLAAN PERIKANAN BERKELANJUTAN DAMAI DINIARIWISAN; MUHAMMAD MARZUKI; WIWID ANDRIYANI LESTARININGSIH
GANEC SWARA Vol 17, No 4 (2023): Desember 2023
Publisher : Universitas Mahasaraswati K. Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35327/gara.v17i4.609

Abstract

Octopus is a mollusk which has high economic value. Ketapang Beach in East Lombok Regency is one of the octopus landing locations, so it is necessary to know the current conditions of the biological dimensions of octopuses, such as growth patterns, body shape, age group, catchability and spawning for sustainable octopus management. The purpose of this study was to find out the current condition of the octopus fishery sector, especially the biological dimension. The research uses a descriptive survey method, data and information comes from a population sample to describe objects according to actual conditions, then processed using regression. The research results stated that the growth pattern of octopuses landed on Ketapang Beach was negative allometric, where the b value was 5.161 (b>3), where the weight growth was greater than the increase in body length. The age group values at the location are dominated by octopuses of the adult age group with the highest coat length value > 12 cm with 38 individuals, and supported by 45 mature octopuses of which 38 individuals (76%) have PM > 12 cm, and 7 individuals (14 %) have PM 9 – 11 cm
KOMPOSISI KELIMPAHAN DAN STRUKTUR KOMUNITAS FITOPLANKTON DI KAWASAN PANTAI SEKOTONG, NUSA TENGGARA BARAT DAMAI DINIARIWISAN; THOY BATUN CITRA RAHMADANI
GANEC SWARA Vol 18, No 1 (2024): Maret 2024
Publisher : Universitas Mahasaraswati K. Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35327/gara.v18i1.766

Abstract

The potential for coastal resources in the Sekotong region, West Nusa Tenggara is very large both from an ecological and economic perspective. Various types of aquatic biota, both macroorganisms and microorganisms such as phytoplankton, can be found in this area. Phytoplankton can generally be used as a bioindicator to monitor water conditions, pollution and eutrophication. This research aims to determine the composition of the abundance and community of phytoplankton in the Sekotong coastal area. This research was carried out in January 2023 using a descriptive method, namely taking and measuring samples in the field and then describing the results. The highest phytoplankton abundance results obtained were 8640 cells/l, which is included in the oligotrophic or low category. Meanwhile, the phytoplankton composition found consisted of Chrysophyta and Cyanophyta. The results of the dominance index range from 0.19 to 0.34, which means low dominance, while the diversity index ranges from 0.91 to 1.71, which means moderate diversity. Water quality conditions show normal water values. So in general, the condition of the phytoplankton community in the Sekotong Beach area is still in the normal category with low abundance.
Co-Authors Muhammad Marzuki THOY BATUN CITRA RAHMADANI Wiwid Andriyani Lestariningsih