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All Journal Jurnal Biologi Tropis Agrikan: Jurnal Agribisnis Perikanan
Ariyati H. Fadel
Universitas Khairun
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Environmental Science Immunology & microbiology

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Gastropod Communities in Seagrass Ecosystems in Tafaga Coastal Waters and Figures, Moti Island District, Ternate City Sunarti Sunarti; Yuyun Abubakar; Salim Abubakar; Riyadi Subur; Rina Rina; Masykhur Abdul Kadir; Adi Noman Susanto; Ariyati H. Fadel
JURNAL AGRIKAN (Agribisnis Perikanan) Vol 14 No 2 (2021): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1227.51 KB) | DOI: 10.52046/agrikan.v14i2.864

Abstract

This study was conducted with the aim of knowing the composition of gastropod species that live in the seagrass area of Tafaga and Figur coastal waters, Moti Island and to determine the structure of the gastropod community which includes density, diversity, dominance and species evenness. The sampling technique was carried out using the 50x50 m block area method. The composition of gastropod species found in coastal waters of Tafaga (station 1) was 6 species and coastal waters of Figure (station 2) were 17 species. The highest density of gastropod species in station 1 was found in the Nassarius pullus species and the lowest in the Naria erosa species. Meanwhile, in the station 2, the highest density of gastropod species was also found in the Nassarius pullus species and the lowest in the Strombus lentiginosus species. The diversity of gastropod species at station 1 is low and there are species that dominate and the distribution of species is quite even. While at station 2 the species diversity is moderate and no species dominates and the species distribution is evenly distributed.
Padina australis Seaweed Growth on The Coast of Toduku Island, Dehe Village, South Jailolo District, West Halmahera Regency Ariyati H. Fadel; Yuyun Abubakar; Fajria Dewi salim; Salim Abubakar; Adinoman Susanto; Sunarti Sunarti
JURNAL AGRIKAN (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.v15i2.1397

Abstract

This study aimed to observe the morphometric growth of Padina australis algae naturally in waters. The growth seen was the length, diameter and weight of the P. australis thallus in nature. Padina australis lives on a substrate in the form of sand, sandy gravel. Sampling by purposive sampling. Each individual sample clump was measured thallus morphology, namely; thallus length, thallus diameter, and mass weight (BM) and water quality measurements, including temperature, salinity, depth and tides were measured to see the impact on the growth of P. australis. Toduku Island, Kec. South Jailolo, West Halmahera Regency, is the location for research on the growth of the Padina australis algae. Results; The length and diameter of the thallus had the highest mean value at the ST.I location and the lowest at ST.II, from the results of the analysis of the variance, it showed that the growth of the Padina australis thallus length and weight was not significantly different or non-significant with the Fhit value < Ftable for each Fhit length (2 .29) and Fhit weight (-16.52) < Ftab (3.54) while the thallus diameter showed a significant value, namely Fhit (14.62) > Ftab (3.54) at 95% confidence. Of the three parameters, only the thallus diameter showed a significant relationship with water quality conditions at the study site and was still significant for seaweed growth, while the relationship between thallus length and weight with water quality parameters (temperature, salinity, pH, etc.) significant.
Gastropod Microhabitat Associations and Niches in Seagrass Ecosystems on Donrotu Island, South Jailolo District, West Halmahera Regency Sunarti; Yuyun Abubakar; Riyadi Subur; Salim Abubakar; Rina; Adi Noman Susanto; Ariyati H. Fadel
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): January - March
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.v23i1.4642

Abstract

Gastropods are included in the mollusk phylum which is known to be well-associated with seagrass ecosystems. The gastropod community is an important component in the food chain in seagrass beds and ecologically seagrass beds have an important role in the ecosystem. Seagrass ecosystems are habitats and food sources for fish and other aquatic biota. One of the biota commonly found in seagrass beds is Gastropods. This study was conducted to know the composition of gastropod species, types of gastropod associations, and gastropod microhabitat niches in seagrass ecosystems on Donrotu Island. Gastropod sampling was carried out at low tide. The gastropod samples found were then put into a plastic bag that already contained a label. Furthermore, the gastropod samples were brought ashore to count the number of individuals of each type and determined based on morphological characteristics such as shell shape, shell color, shell mouth opening, and spiral circle based on Dharma (1992) instructions. Based on the results of the study, the composition of the types of gastropods found in the seagrass ecosystem on the island of Donrotu was as many as 13 species. There were 13 pairs of gastropod types that had positive associations and 65 pairs of no associations. The type of gastropod that has the widest habitat niche is Cypraea tigris and the narrowest are Naticarius coillei and Pseudovertagus aluco.
Methods of Analysis of Macroalae Associations in Seagrass Ecosystems on Sibu Island, North Oba District, Tidore Islands City Ariyati H. Fadel; Riyadi Subur; Salim Abubakar; M.Said Alhadad; Rugaya Serosero; Rina Rina; Masykur Abdulkadir; Yuyun Abubakar; Darmiyati Muksin
Agrikan Jurnal Agribisnis Perikanan Vol 16 No 1 (2023): 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.v16i1.1593

Abstract

The association between macroalgae and seagrasses has many very important ecological functions, namely as a nurturing and foraging area for various types of marine organizations and to maintain the preservation and balance of marine diversity. Various types of fish that have important economic value use the habitat for shelter and foraging. The methods used in this study are is the descriptive method, the descriptive method is knowing the existence of independent variables or survive either on one or more variables. The data obtained is displayed in the form of tables or figures. Type description based on the results of sampling in the field found 11 types of macroalgae, namely Turbinaria ornate, Turbinaria conoides, Sargassum cristaefolium, Sargassum polycystum, Sargassum muticum, Padina australis, Dictyota pinnatifida, Halimeda macroloba, Bornetella oligospora, Eucheuma denticulatum, and Chondrus crispus. Of the 11 types of macroalgae there are 8 species of macroalgae that live in sand substrate, 6 species live in muddy sand substrate, 1 species live in mud substrate, 4 species live in sandy mud substrate, 9 species live in coral substrate or coral faults, and 6 species live in rock substrate.
Co-Authors Abubakar, Salim Adi Noman Susanto Adinoman Susanto Darmiyati Muksin Fajria Dewi Salim M.Said Alhadad Masykhur Abdul Kadir Masykur Abdulkadir Rina Rina Rina Riyadi Subur, Riyadi Rugaya Serosero Sunarti Sunarti Sunarti Yuyun Abubakar