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Kota makassar,
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INDONESIA
Jurnal Ilmu Kelautan Spermonde
Published by Universitas Hasanuddin
ISSN : 24600156     EISSN : 26145049     DOI : -
Core Subject : Science,
Earth & Planetary Sciences
The aims of this journal is to provide a venue for academicians, researchers and practitioners for publishing the original research articles or review articles in the field of Marine Science.
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue "VOLUME 8 NOMOR 1, 2022" : 6 Documents clear
HIGH EXPLOITATION RATE OF ORANGE-DOTTED TUSKFIS CHOERODON ANCHORAGO IN WALLACE LINE, SPERMONDE ISLANDS, MAKASSAR STRAIT, INDONESIA Ambo Tuwo
Jurnal Ilmu Kelautan SPERMONDE VOLUME 8 NOMOR 1, 2022
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v8i1.17898

Abstract

Orange-dotted tuskfis Choerodon anchorago is Labridae or Wrasse live in coral reefs ecosystem around the world. Wrasse is the second largest marine fish family, was found about 70 genera and about 504 species. Orange-dotted tuskfis is mostly caught by fishermen on the Wallace line on the Spermonde Islands. The Spermonde Islands consists of 60,000 ha of coral reefs. This study aims to assess the exploitation rate of Orange-dotted tuskfis in the Wallace line in the Spermonde Islands, Makassar Strait, Indonesia. Fish samples were collected from the catch in the Spermonde Islands landed at the Fish Landing Port, Makassar City in 2020. Age groups were analyzed by using Bhattacharya method. The growth rate was estimated by using Von Bertalanffy method. Total mortality (Z) was estimated by using the catch curve method. The natural mortality rate (M) was estimated by using Pauly empirical formula. The fishing mortality rate (F) was estimated by using equation . The exploitation rate (E) was estimated by using the Beverton and Holt equations, . The growth rate equation was . The total mortality rate of was 1.38, the natural mortality rate was 0.32, the fishing mortality rate was 1.06, and the exploitation rate was 0.77. Exploitation rates greater than 0.50 indicate that the Orange-dotted tuskfis C. anchorago in on the Wallace line on the Spermonde Islands is overexploited.
COMMUNITY STRUCTURE OF MACROALGAE IN LEMUKUTAN ISLAND WATERS, WEST KALIMANTAN Ikha Safitri; Mega Sari Juane; Warsidah Warsidah; Shifa Helena; Sukal Minsas; Agus Yuliono
Jurnal Ilmu Kelautan SPERMONDE VOLUME 8 NOMOR 1, 2022
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v8i1.17914

Abstract

Macroalgae or known as seaweed is one of the potential resources and is responsible for primary productivity in marine waters. Macroalgae plays an important role in marine ecosystems, provides food, oxygen, and habitat for several types of marine biota. Moreover, macroalgae have been reported as renewable resources in marine environment and widely used in various fields. The biodiversity and abundance of macroalgae are strongly influenced by aquatic environmental factors. Lemukutan Island is the largest inhabited island located in Bengkayang Regency, West Kalimantan and has the potential natural resources, including macroalgae. This Island can become a center for producing macroalgae that can be used to meet food needs both locally and domestically. The main objective of this study were to determine the community structure of macroalgae and the condition of the environmental physico-chemical parameters. The sampling locations were carried out in-situ at three stations and the determination of the sampling site was done by purposive random sampling method, by selecting an area based on the presence of macroalgae. The sampling of macroalgae was carried out using a quadratic transect with size of 10x10 m2 and the water quality parameters were measured using the AZ 8603 of WQC instrument. The study found 6 genera of macroalgae, such as Caulerpa, Halimeda, Padina, Turbinaria, Sargassum, and Gracillaria. Among the identified macroalgae, Phaeophyceae have the highest per cent contribution (50%), and Padina had the highest abundance (29.84 ind/m2). Lemukutan Island waters had a moderate level of diversity, high macroalgae uniformity, and dominance index in the low category. The aquaatic environmental factors influenced the abundance of macroalgae in Lemukutan Island waters.  
HORIZONTAL COORDINATE ACCURACY OF GOOGLE EARTH ON THE COVERAGE OF SMALL ISLANDS OF MAKASSAR CITY, INDONESIA Muhammad Anshar Amran; Ira Nirwana; Nurfitri Sam; Ulfi Syamsiah; Amir Hamzah Muhiddin
Jurnal Ilmu Kelautan SPERMONDE VOLUME 8 NOMOR 1, 2022
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v8i1.18651

Abstract

The presence of high-resolution satellite imagery on Google Earth provides an opportunity for the availability of maps that can be used as a reference for accurate coordinates. Google Earth has been developed to contain high-resolution images, but it warns users about the accuracy of the data regarding the coordinates of the objects covered. Coordinate inaccuracies have the potential to cause problems when used for navigational purposes, or in technical tasks requiring high accuracy such as surveying and mapping applications. Despite these warnings, users are often forced to refer to Google Earth as a reliable data source due to the absence of other data sources. The purpose of this study is to evaluate the accuracy of Google Earth's horizontal coordinates and determine the maximum map scale that can be made based on coordinate data from Google Earth on the coverage of small islands in the Makassar City area. The method used is to compare the object coordinate obtained from Google Earth and the coordinate measured in the field at the same object point. The calculation results show the RMSEH is 2.49 meters and the horizontal accuracy is 4.28 meters. These results indicate that the horizontal coordinates on Google Earth can be referenced to produce a map with a maximum scale of 1: 10,000.
IDENTIFICATION OF MARINE DEBRIS IN THE BEACH OF KODINGARENG LOMPO ISLAND, MAKASSAR CITY Shinta Werorilangi; Pricilia Gaby Angelica; Mahatma Lanuru; Abdul Rasyid
Jurnal Ilmu Kelautan SPERMONDE VOLUME 8 NOMOR 1, 2022
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v8i1.19225

Abstract

Marine debris may become a serious threat because of the increasing in its quantity every day, especially in marine areas around the world. The purpose of this study was to identify the amount, weight, and type of marine debris and to determine the abundance based on the amount and weight present in the coastal area on Kodingareng Lompo Island, Makassar City. This research was carried out during the ebb of the east monsoon period, i.e., in June 2021. The most common types of waste found in the three observation locations were plastic waste. The abundance of waste based on the amount is most commonly found at station 2, which is located near a residential area, so that most of the waste at the station is household waste. Meanwhile, the greatest abundance of weight was also observed at station 3 which has the widest intertidal area and the majority of the waste there came from a type of cloth which was larger than other wastes. Station 3 also has a faster flow rate than the other stations. The existing waste facilities on Kodingareng Lompo Island in the form of garbage motorbikes and Garbage Banks in general have not been effective. Several factors that can also worsen, i.e., lack of understanding, low awareness, and laziness of the community in managing their waste, people prefer to throw garbage into the sea, so the accumulation of marine waste in the coastal area of Kodingareng Lompo Island may have a negative impact in various fields of life.
SEDIMENT ORGANIC MATTER CONTENT BASED ON THE DIFFERENT AGES OF MANGROVE VEGETATION IN THE LANTEBUNG MANGROVE ECOTOURISM AREA, MAKASSAR Supriadi Mashoreng; Muh. Hatta; Rusti Rusti
Jurnal Ilmu Kelautan SPERMONDE VOLUME 8 NOMOR 1, 2022
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v8i1.19589

Abstract

Salah satu peran ekosistem mangrove bagi lingkungan adalah sebagai penyedia bahan organik melalui serasah yang jatuh. Serasah tersebut sebagian besar didekomposisi oleh bakteri pada sedimen, sebagian lainnya diekspor ke ekosistem lain dan sebagian kecil dimanfaatkan langsung oleh biota. Kandungan bahan organik pada sedimen diduga berkaitan dengan umur vegetasi mangrove. Penelitian dilakukan di kawasan ekowisata mangrove Lantebung Kota Makassar. Sebanyak empat stasiun sampling dibuat untuk menganalisis kandungan bahan organiknya. Stasiun tersebut ditempatkan berdasarkan jarak dari darat dengan asumsi bahwa semakin jauh dari darat, maka umur vegetasi mangrove semakin muda. Analisis bahan organik pada sedimen dilakukan menggunakan metode pembakaran pada suhu tinggi. Hasil penelitian menunjukkan terdapat tiga jenis mangrove yaitu Avicennia marina, Rhizophora mucronata dan Excoecaria agallocha. Jenis A. marina dominan pada bagian dalam dan tengah, sedangkan R. mucronata dominan pada bagian luar. Kandungan bahan organik sedimen berkisar 5,77-7,40% dengan rata-rata 6,68±0,68%. Pada lapisan sedimen 0-30 cm, terlihat bahwa semakin muda umur vegetasi mangrove maka kandungan bahan organik semakin kecil. Namun pada lapisan sedimen di bawahnya kandungan bahan organik relatif sama antar umur vegetasi yang berbeda. Total bahan organik pada kawasan mangrove Lantebung yang dijadikan sebagai area ekowisata (6,5 ha) sebesar 2.769 ton atau rata-rata 426 ton per hektar.
ASSESSING DISTRIBUTION PATTERN FOR SKIPJACK TUNA IN BONE GULF, INDONESIA DURING JANUARY-JUNE Mukti Zainuddin; Muhammad Ridwan; Amir Hamzah Muhiddin
Jurnal Ilmu Kelautan SPERMONDE VOLUME 8 NOMOR 1, 2022
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v8i1.20799

Abstract

Satellite remote sensing provides systematically important information on oceanographic signatures. Sea surface temperature (SST) and chlorophyll-a concentration (Chl-a) obtained from Aqua/ Moderate Resolution Imaging Spectro-radiometer (MODIS) data together with skipjack fishing data during January-June were applied to assess the distribution pattern of skipjack tuna in the Bone Gulf, Indonesia. Geographic information system techniques were employed to map out the potential fishing zone generated from the Cobb Douglass model. The fish distribution pattern was produced by the movement of the Gravity Center of the potential fishing ground. Results expressed that the most potential catch per unit efforts (fish/trip) associated with the areas where a combination of optimum SST and chlorophyll-a concentration ranged was found. The center of skipjack potential fishing zones developed in January-February along with the western regions in the Bone Gulf and moved to the northern side during March and April, and subsequently migrated to the south in May –June. We found that skipjack tuna showed a clockwise movement pattern throughout the Bone Gulf during the first semester period (January-June). Therefore, the potential fishing zones suggest corresponding to the movement of skipjack concentration, which may link with prey upon by skipjack.

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