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All Journal Jurnal Aquatik HISABUNA: Jurnal Ilmu Falak
Annisa Nurfadilah
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Religion Agriculture, Biological Sciences & Forestry Astronomy Earth & Planetary Sciences Physics Social Sciences

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Pengembangan Instrumen Qamariyah Syamsiyah Moon Phase Detector (QaSyM PD) dengan Penanggalan Sepanjang Masa: Indonesia Annisa Nurfadilah; Syarif, Rasyawan; Fatmawati
HISABUNA: Jurnal Ilmu Falak Vol 5 No 2 (2024): Juni 2024
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/hisabuna.v5i2.46370

Abstract

This article discusses the Development of Qamariyah Shamsiyah Moon Phase Detector (QaSyM PD) Instrument with All-Time Dating. The problem formulations in this thesis are 1) How is the QaSyM PD Instrument in determining the phases of the moon in Qamariyah and Shamsiyah, 2) How the Development of QaSyM PD Instrument can be valid for all time. This study uses Research and Development (RnD) research which means development research in this case the instrument by adopting the 4 D model namely Define, Design, Developing, and Dissemination. The results of this study indicate that the QaSyM PD Instrument with innovations made by researchers in the development of its dating can be valid for all time. With several stages that change the layers of the instrument starting from the first layer of the Shamsiyah calendar (Gregorian Calendar), the second layer of the Qamariyah Calendar (Hijriyah Calendar) and the third layer of moonrise and sunset times. The development of the QaSyM PD Instrument was carried out with validation and testing stages carried out through supporting data and applications. So as to produce an instrument that is valid for all time. The implication of this research is that this instrument is expected to make an educational contribution to the community, especially those who are unfamiliar with Falak Science. This research also has implications for the development of technology and science in the field of Falak Science and astronomy which can encourage further research to understand the motion of the moon with a simpler system.
Identifikasi Rumput Laut yang di Budidaya di Perairan Sulamu, Kabupaten Kupang, Nusa Tenggara Timur Annisa Nurfadilah; Marcelien Dj Ratoe Oedjoe; Agnette Tjendanawangi
Jurnal Aquatik Vol 9 No 2 (2026): Edisi Oktober 2026
Publisher : Nusa Cendana University

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Abstract

The coastal waters of Sulamu, Kupang Regency, East Nusa Tenggara, hold significant potential for seaweed aquaculture, yet taxonomic certainty and morphological characterization remain essential to explore. This study aims to identify cultivated seaweed species, describe their morphological traits, and evaluate the physical-chemical parameters at the cultivation sites. Sampling was conducted using a purposive sampling method across active farming locations in Sulamu waters. The results revealed two main species from the Phylum Rhodophyta being cultivated: Kappaphycus alvarezii (Cottonii) and Eucheuma denticulatum (Spinosum). K. alvarezii is characterized by smooth, fleshy cylindrical thalli with irregular branching patterns lacking sharp spines, exhibiting colors from green to reddish-brown due to light adaptation. Conversely, E. denticulatum features smaller thalli with distinct spines arranged in whorls along the branches. Water quality measurements indicated temperature ranging between 27.5 - 29.8 °C, salinity of 32 - 34 ppt, pH of 7.8 - 8.1, and current speeds of 22 - 35 cm/s. All environmental parameters fall within the optimal range to support seaweed growth and productivity. This study confirms that Sulamu coastal waters are highly suitable for sustainable seaweed cultivation based on clear species identification. Keywords: Eucheuma denticulatum, Identification, Kappaphycus alvarezii, Morphology, Sulamu.
Co-Authors Agnette Tjendanawangi Fatmawati Fatmawati Marcelien Dj Ratoe Oedjoe Syarif, Rasyawan