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All Journal Berkala Perikanan Terubuk Jurnal Sains dan Teknologi
Rahmi Fitrawati
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Dentistry Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Veterinary

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Analysis of Alien Species Invasion in Marine Debris in Palu Bay, Central Sulawesi Roni Hermawan; Anita Treisya Aristawati; Eka Aji Pramita; Mubin Mubin; Rahmi Fitrawati; Finarti Finarti; Mohamad Akbar; Renol Renol; Alismi M Salanggon; Radhiyatul Ula
Berkala Perikanan Terubuk Vol 50, No 2 (2022): Juli 2022
Publisher : Fakultas Perikanan dan Kelautan, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/terubuk.50.2.1495 – 1501

Abstract

Marine debris provides habitat for several species. These species attach and carried (rafting) marine debris in all directions following the ocean currents. When stranded, these alien species will quickly develop because they have high survival and adaptation capabilities, these alien species will cause economic, ecological and social impacts. This research begins with a survey of the presence of marine debris that attached by alien species on coast of Palu Bay, then observations on the marine debris such as: size, weight, observations on alien species such as: type, size, colony size, ability to spread and survive, impact category based on literature. The aim of this study was to identify the types of alien species carried by marine debris in Palu Bay.  Calculating the amount of alien species carried by marine debris in Palu Bay. Based on the analysis, there are 3 alien species on the coast of Palu Bay. Lepas sp were 247 individuals, then Isognomon sp with 124 individuals and Saccostrea cuccullata d for 36 individuals. The species were found on wood, iron, coconut, PVC pipes, bamboo, nets and boat ropes as substrates.
Efisiensi Pakan Larva Ikan Nila (Oreochromis Niloticus) Hasil Maskulinisasi Madu Hutan Muhammad Amri Yusuf; Rahmi Fitrawati; Annisa Annisa; Rahayu Abriani Sahar; Reza Gustiyani Ayu
INSOLOGI: Jurnal Sains dan Teknologi Vol. 3 No. 1 (2024): Februari 2024
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v3i1.2883

Abstract

Nile tilapia is a superior commodity that has been developed with high production. Male nile tilapia has a growth rate of 2 times faster than female nile tilapia, so the cultivation of male nile tilapia (monosex) is far more profitable. The masculinization using honey will produce monosexual male nile tilapia, through immersion method using honey. Honey contain flavonoids which function to direct male genitals. Honey also contains potassium which triggers steroid hormones in protein metabolism, brings glucose into cells and stimulates the hypothalamus, so that it can trigger appetite in animals and influence the level of consumption and feed efficiency. This study aims to determine the best type of honey in nile tilapia larvae for consumption and feed efficiency. Honey used in this study were; forest honey (from Bontocani, Selayar, Sumbawa) and livestock honey with a dose of 0.2% of the total volume of solvents, through the immersion method. The seven days old nile tilapia larvae were immersed in the treatments for 24 hours, then they were reared for 60 days. Completely Randomized Design (CRD) with 3 replications per treatment was used in this experiment. The results showed that honey from Bontocani forest produced highest feed consumption and forest honey (from Bontocani, Selayar and Sumbawa) produced highest feed efficiency.
Co-Authors Alismi M Salanggon Anita Treisya Aristawati Annisa Annisa Eka Aji Pramita Finarti Finarti Mohamad Akbar Mubin Mubin Muhammad Amri Yusuf Radhiyatul Ula Renol Renol Reza Gustiyani Ayu Roni Hermawan Sahar, Rahayu Abriani