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Serosero, Rugaya
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

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Analysis of Availability and Size Distribution of Giant Shrimp (Macrobranchium sp) in River Togafo, Ternate City, North Mollucas Province Abubakar, Yuyun; Sunarti, Sunarti; Salim, Fajria Dewi; Rina, Rina; Abubakar, Salim; Serosero, Rugaya; Fadel, Ariyati H
Jurnal Biologi Tropis Vol. 24 No. 2 (2024): April - Juni
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.v24i2.7005

Abstract

Giant prawns (Macrobrachium sp) are one of the freshwater aquaculture commodities that have high economic value (Murtidjo, 1992). The demand for giant prawns in Indonesia has only been met by 40% of all existing demand (Tambunan, 2009. The aim of the research was to analyze the abundance of giant prawns and the size distribution of giant prawns in Togafo Village, West Ternate District, Ternate City. The purposive sampling method was used in this research. Then the sampling points that had been determined using purposive sampling were marked with coordinates with the help of the Global Positioning System (GPS). For the research location, it was divided into 3 observation stations. First, the shrimp body length and weight were measured using calipers and analytical scales. Abundance relative = individual/trip and Distribution of length measurements and distribution of shrimp weight measurements can be grouped using the equation (Effendie, 1979) as follows: K = 1 + 3.3 log n. Note: K = Number of Interval Classes, n = Number of Observation Data, log = Logarithm. Based on the results, the highest abundance of giant prawns (Macrobrachium sp) is at station 3 with a value of 0.575 ind., station 1 is 0.336, the lowest is at station 2 with a value of 0.088 ind. Size Distribution The smallest ranges between 40.17-52.19 mm and the largest ranges between 105.25 – 117.27 mm.
Associations Between Species and Habitat Niches of Macroalgae In Maitara Island Waters, North Tidore District, Indonesia Fadel, Ariyati H.; Subur, Riyadi; Serosero, Rugaya; Abubakar, Yuyun; Abubakar, Salim; Alhadad, M Said; Susanto, Adi Noman
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.v24i3.7118

Abstract

Macroalgae have many benefits, both ecological and economic benefits for society. The ecological benefits of macroalgae that they provide habitat for several types of marine biota such as crustaceans, mollusks, echinoderms, fish or other small fish. Macroalgae on Maitara Island has a fairly high species diversity; however its existence is currently starting to experience pressure, especially due to human activities (residents) who inhabit Maitara Island. The aim of this research is to determine the types of macroalgae, and patterns of association. The methods used in this research were identify of macroalga and associations between species of organisms. Based on the research, 14 species found in Maitara Island waters, with associatoin pattern consists of 3 types such as; positive association, negative association, and non association.
Co-Authors Abubakar, Salim Abubakar, Yuyun Adi Noman Susanto Alhadad, M Said Ariyati H Fadel Fadel, Ariyati H. Rina Rina Riyadi Subur, Riyadi Salim, Fajria Dewi Sunarti