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All Journal Jurnal Ilmu Kelautan Kepulauan Agrikan: Jurnal Agribisnis Perikanan
Alhadad, M. Said
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Environmental Science Immunology & microbiology

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Economic estimation of coral reef ecosystem utilization in Maitara island waters Tidore City islands Hi. Kader, Iwan; Alhadad, M. Said
Agrikan Jurnal Agribisnis Perikanan Vol. 15 No. 1 (2022): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1193.201 KB) | DOI: 10.52046/agrikan.v15i1.1199

Abstract

Coral reefs are a group of coral animals that live in symbiosis with a type of algae called zooxanthellae. Coral reefs themselves have functions and benefits as well as very important meaning for human life both in terms of economy and as a support for tourism activities. This study aims to estimate the economic value of using coral reef ecosystems on Maitara Island, seen from the value of direct benefits as fishing grounds, value of coral mining, tourism value and research value and estimating the value of indirect benefits as the manufacture of breakwaters and spawning areas. (nursery ground). Based on the results of the study, the actual condition of coral reef ecosystem resources in the waters of Maitara Island, Tidore Island City with an area of 17.55 Ha, has an economic value of direct use of coral reef ecosystems during 2019 of Rp. 14,762,522,910, which consists of a fishery benefit value of Rp. 6,858,991,660, the value of coral mining is Rp. 1,485,000,000, tourism value Rp. 12.060.000 and research value Rp. 5,850,000. While the indirect benefit value of coral reefs on Maitara Island in 2019 was Rp. 6,400,621,250, which consists of making a wave barrier of Rp. 6,380,000,000 and the value of the nursery ground is Rp. 20,621,250.
Ecological Study Of Polychaeta (Family capitelidae) As A Bio-Indicator of Organic Pollution in Kasturian And Salero Coastal Waters City Of Ternate Irham, Irham; Salim, Fajria Dewi; Alhadad, M. Said
Agrikan Jurnal Agribisnis Perikanan Vol. 15 No. 2 (2022): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52046/agrikan.v15i2.1369

Abstract

Pollution of the marine environment hurts the survival of aquatic organisms. One of the impacts caused by human activities is sea pollution. One source of marine pollution comes from organic waste, namely waste that comes from household waste that enters the waters. It affects the ecology of organisms and creates species that are susceptible to pollutants. This study aimed to determine the level of organic matter contamination using the species diversity index and the dominance index of Polychaeta (family Capitelidae). This research was carried out around the coastal waters of the North Ternate District from March to July 2020. The parameters observed were determining the substrate's texture, organic matter, diversity and dominance, and environmental parameters, which were then determined by the level of water pollution. The results obtained found as many as 156 individual worms consisting of 2 (two) species, namely Heteromastus sp and Capitella capitata. The composition of the substrate consists of sand, silt and clay. Overall the substrate is dominated by dusty loams and sandy loams. The analysis of the diversity index, dominance index and dissolved oxygen content shows that Kasturian and Salero coastal waters in a heavily polluted condition.
Biology Reproduction aspects study of Yellowtail Fusilier (Caesio sp.) Landed at Ternate Archipelago Fishing Port, Indonesia Iksan, Kusdi Hi.; Susanto, Adi Noman; Irham, Irham; Ahmad, Aditiyawan; Karim, Wanty Julianti; Alhadad, M. Said
Agrikan Jurnal Agribisnis Perikanan Vol. 17 No. 2 (2024): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52046/agrikan.v17i2.2252

Abstract

This research aims to determine growth patterns, gonad maturity levels, gonad maturity index and size of first mature gonads. The research was carried out for 5 months starting from November 2023 to March 2024 with the sampling location at PPN Ternate. Data collection used the observation method (direct observation). The data was analyzed using Microsoft Excel. The results of the sex ratio for male and female escaped fish were 1: 1.36, indicating that the catch of fish was balanced at 1: 1. The results of the analysis of the relationship between length and weight showed that male and female escaped fish were allometrically negative, where there was a faster growth in length than weight gain. The level of gonad maturity in the yellowtail (Caesio sp.) (males and females) experienced the highest gonad maturity in March with the number of mature gonads in male fish amounting to 46,49% and the number of mature gonad in fish amounting to 54,04%. The hight gonad maturity indeks value in male and female escaped fish occurred in March. Based on analysis of the gonad maturity indeks (IKG), the fish with the highest TKG was found in TKG IV with a value of 1,8526. the avarage size of mature gonads for male fisht is 252 mm and famale fish is 243 mm.
Length Frequency and Sex Ratio of Bullet Tuna (Auxis rochei) Landed at Ternate Archipelago Fishing Port, Indonesia Iksan, Kusdi Hi; Irham, Irham; Susanto, Adi Noman; Ahmad, Aditiyawan; Alhadad, M. Said; Kadir, Masykhur Abdul Kadir; Rahman, Nurdawia W.
Agrikan Jurnal Agribisnis Perikanan Vol. 18 No. 1 (2025): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52046/agrikan.v18i1.2552

Abstract

This study aims to analyze the length distribution and sex ratio of bullet tuna (Auxis rochei) landed at Ternate Archipelago Fishing Port Ternate (PPN Ternate). Sampling was conducted in June and July 2024 with 100 fish per month. Observations included total length measurements and sex identification to determine size distribution patterns and sex composition. The results showed that male fish in June had the highest frequency at class interval of 190-201 mm, and in July it shifted to class interval 226-237 mm. Meanwhile, female fish in June were dominant in the class interval of 201-210 mm, and in July increased to the class interval of 231-230 mm. The sex ratio in June was 1:1.22 (male:female), while in July it was 1:0.82. The results of the chi-square test showed that the difference in sex ratio was not statistically significant (p > 0,05), so the population was considered to have a balanced sex composition. This finding is in line with several previous studies in the Indonesian region that showed variations in size structure and sex ratio of Auxis rochei influenced by seasonality, reproductive migration, and fishing activity. This study provides important basic information to support sustainable management of bullet tuna (Auxis rochei) resources in North Maluku waters.
Sebaran Nilai Analisis Granulometri dan Statistik Sedimen Lahan Gisik Pantai Barahima Desa Mesa Kabupaten Halmahera Tengah Iskandar, Masita; Salnuddin, Salnuddin; Harahap, Zulhan A; Bemba, Jefry; Alhadad, M. Said; Ruswati, Ruswati
Jurnal Ilmu Kelautan Kepulauan Vol 7, No 1 (2024): Jurnal Ilmu Kelautan Kepulauan
Publisher : Fakultas Perikanan dan Kelautan. Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/jikk.v7i1.8346

Abstract

Co-Authors Adi Noman Susanto Ahmad, Aditiyawan Bemba, Jefry Hi. Kader, Iwan Iksan, Kusdi Hi Iksan, Kusdi Hi. Irham Irham Iskandar, Masita Kadir, Masykhur Abdul Kadir Karim, Wanty Julianti Rahman, Nurdawia W. Ruswati, Ruswati Salim, Fajria Dewi Salnuddin Salnuddin, Salnuddin Zulhan A Harahap, Zulhan A