Article Per Year (5 Year)
p-Index From 2020 - 2025
0.444
P-Index
This Author published in this journals
All Journal e-Journal BUDIDAYA PERAIRAN Albacore : Jurnal Penelitian Perikanan Laut
Rajagukguk, Bulfrit B.
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Humanities Environmental Science

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Pemanfaatan ragi (Saccharomyces cerevisiae) pada formulasi pakan dalam meningkatkan pertumbuhan ikan Nila (Oreochromis niloticus) Rajagukguk, Bulfrit B.; Lumenta, Cyska; Mokolensang, Jeffrie F.
e-Journal BUDIDAYA PERAIRAN Vol 5, No 3 (2017)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.5.3.2017.17887

Abstract

The purpose of this research was to determine the effect of yeast (Saccharomyces cerevisiae) with different composition of 5%, 10%, 15%, 20%, and without yeast in feed formulation on growth of tilapia (Oreochromis niloticus). The experimental fish used in this study had an average lengths of 2-3 cm  and weight of 1.0 g.  This research used cage measuring 100 x 100 x 100 cm3 that was placed in outdoor concrete pond of 3.5 x 5 m2.  Each cage filled with 10 fishes with three replication.  The dose given to the fish was 10% of the weight of biomass.  The fish was fed for three weeks, 3 times a day at 08.00 am, 12.00 pm, and 16.00 pm.. Research results showed that the greatest growth was achieved in fish treated 20% yeast and the lowest was observed in control fish (without yeast). Based on statistical analysis, all treatment displayed similar effect on all growth parameters.Keywords: Fish feed, Saccharomyces cerevisiae, yeast, Nile tilapia, fish growth
Inventarisasi dan identifikasi makroalga di Perairan Talawaan Bajo, Sulawesi Utara Rajagukguk, Bulfrit B.; Kambey, Rama Presley; Opa, Samuel Leivy; Pamikiran, Vivi Aganitji; Rumengan, Roles; Sumolang , Cakra Sigar
e-Journal BUDIDAYA PERAIRAN Vol. 11 No. 2 (2023): April - Desember
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.v11i2.49847

Abstract

Macroalgae have ecological and economic benefits both directly and indirectly, so they have great potential to be developed. This study aimed to determine the types, abundance and diversity of macroalgae in the coastal waters of Talawaan Bajo. Sampling used the line transect method with a quadratic sampling technique. The data that had been collected was analyzed used descriptive statistical analysis. There were 21 species of macroalgae consisted of Chlorophyta six species (29%), Rhodophyta twelve species (57%), and Phaeophyta three species (14%). The highest density was found in the class Rhodophyta. There were no dominating species and the uniformity value was high and in stable condition. The diversity index was classified as moderate. Research result showed that environmental factors in Talawaan Bajo Waters were favorable for macroalgae growth. Keywords: Structure community, Rhodophyta, Chlorophyta, Phaeophyta, biodiversity
RELATIONSHIP ANALYSIS BETWEEN CRAB CARAPACE WIDTH AND WEIGHT CAUGHT USING FOLDING TRAPS IN GEBANG MEKAR WATERS Jhohan; Riyanto, Mochammad; Tapilatu, Maryrose Easter; Bahtiar, Sadida Anindya; Rajagukguk, Bulfrit B.; Sasarari, Rosmina; Soradatu, Syeiqido
Jurnal Penelitian Perikanan Laut (Albacore) Vol 9 No 4 (2025): Albacore
Publisher : Departemen PSP IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/core.9.4.619-631

Abstract

The blue swimming crab (Portunus pelagicus) is a high economic importance marine species and serves as a primary target for local fisheries employing collapsible traps in Gebang Mekar, Cirebon Regency waters. This study aimed to examine the sex ratio and growth pattern based on variations in carapace width and body weight of crabs captured in the area. Fieldwork was conducted from April to May 2023 in Gebang Mekar Village. Data collection involved measuring the carapace width and body weight of crabs obtained from 30 fishing trips. A total of 2,191 individuals were recorded, comprising 638 males (29.2%) and 1,553 females (70.8%), resulting in a male-to-female ratio of 1:2.4. Carapace width ranged from 6 to 16 cm, while body weight varied between 21 to 338 grams. The analysis of the width-weight relationship yielded a regression coefficient (b) of 2.923, indicating a negative allometric growth pattern, where carapace width increases faster than body weight. The results also demonstrated a positive correlation between carapace width and body weight, suggesting that larger individuals tend to be heavier. Key words: blue swimming crab, carapace width and weight, sex ratio
Co-Authors Bahtiar, Sadida Anindya Cyska Lumenta Jhohan Kambey, Rama Presley Mochammad Riyanto Mokolensang, Jeffrie F. Opa, Samuel Leivy Pamikiran, Vivi Aganitji Rumengan, Roles Sasarari, Rosmina Soradatu, Syeiqido Sumolang , Cakra Sigar Tapilatu, Maryrose Easter