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Tomini Journal of Aquatic Science
Published by Universitas Negeri Gorontalo
ISSN : -     EISSN : 27223787     DOI : https://doi.org/10.37905/tjas
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Tomini Journal of Aquatic Science (Tomini J. Aquat. Sci.) is an open-access peer-reviewed journal that published by the Faculty of Fisheries and Marine Science, Gorontalo State University. This journal dedicated to the research in the field of aquatic sciences (freshwater, marine, and brackish). Topics of interest include but are not limited to; aquatic bioecology, aquatic biodiversity, aquatic toxicology, aquatic management, and aquaculture.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 6 Documents
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Search results for , issue "VOLUME 2 ISSUE 2, NOVEMBER 2021" : 6 Documents clear
Assessment of Water Quality Status in Bondet Estuary, Cirebon Wahyuningsih, Sri
Tomini Journal of Aquatic Science VOLUME 2 ISSUE 2, NOVEMBER 2021
Publisher : Gorontalo State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (408.205 KB) | DOI: 10.37905/tjas.v2i2.13605

Abstract

The coast is a water area that gets a lot of environmental pressure from human anthropogenic activities. As a result, many coastal areas are in a polluted condition, is no exception Bondet Estuary. An assessment of the condition and status of water quality needs to be carried out, as an effort to conserve coastal resources. This research aims to know the condition of water quality and determine the water quality status of the Bondet Estuary using the STORET method and the pollution index (IP). This study used survey method, where the determination of the sampling location is based on the purposive sampling method. Based on the STORET method, the water quality status of the Muara Sungai Bondet was moderately polluted with a score of -14 to -18, while the results of the assessment with the pollution index showed that it was lightly polluted with a value of 2.54 - 4.05. Several parameters that contribute to the condition of water quality degradation are salinity, TSS, and Pb. Based on these results, a sustainable management plan for the Bondet Estuary area is needed to reduce the negative impact on the environment due to various human activities.
Tihu Beach Tourism Development Strategy in Bone Bolango District Erlansyah, Erlansyah; Antu, Yulinda R; Anwar, Rustam
Tomini Journal of Aquatic Science VOLUME 2 ISSUE 2, NOVEMBER 2021
Publisher : Gorontalo State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (355.393 KB) | DOI: 10.37905/tjas.v2i2.13646

Abstract

Tihu Village is one of the villages located in the coastal area of Tomini Bay. Administratively, this village is included in the Bonepantai District, Bone Bolango Regency, Gorontalo Province. This bay has the potential of coastal and marine resources, especially fishery resources. This potential can certainly be used to improve the welfare or economy of the community in the present and in the future. The purpose of this research is to formulate a strategy for developing Tihu beach tourism. The analysis to determine the strategy of developing Tihu beach tourism uses 2 (two) data analyzes, namely descriptive analysis, and AHP (Analytical Hierarchy Process). Based on the results of the study, the main priority is the socio-cultural factor with a value of 0.426, the second priority is the economic factor with a value of 0.414, the third priority is the accommodation factor with a value of 0.110, and the last priority is the safety factor with a value of 0.056.
Kwandang waterfront city development study against the water conditions of north gorontalo regency Djau, Bambang
Tomini Journal of Aquatic Science VOLUME 2 ISSUE 2, NOVEMBER 2021
Publisher : Gorontalo State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (711.445 KB) | DOI: 10.37905/tjas.v2i2.13758

Abstract

Kwandang Waterfront City is a directive on urban development plans by Government Regency of North Gorontalo where there is a plan for coastal reclamation with beachfront conditions are dense settlements. However, it has not been stated in the Zoning Plan of Coastal Areas and Small Islands (RZWP3K) in Gorontalo Province. This paper aims to explore the feasibility of Kwandang Waterfront City development to changes in the physical condition of the aquatic environment of the North Gorontalo Regency through spatial analysis and weighting methods. The results of this paper can be taken into consideration in conducting a review of Coastal Spasial Plan, as a form of support for the Kwandang Waterfront City urban development plan.
Application of Different Temperatures in the Incubation Process of Jurung Fish Eggs (Tor tambra) Firdaus, Rian; Nurhatijah, Nurhatijah; Rismawati, Shela
Tomini Journal of Aquatic Science VOLUME 2 ISSUE 2, NOVEMBER 2021
Publisher : Gorontalo State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/tjas.v2i2.11832

Abstract

The habitat of the Jurung Fish (Tor tambra) is generally inflowing rivers, rocky bottom waters and relatively low water temperatures. This study aimed to determine the hatchability of the Jurung Fish (Tor tambra) eggs with different temperature treatments using a tray in the aquarium. The research method used is the laboratory experimental method and the experimental design is a non-factorial completely randomized design (CRD) consisting of 4 treatments and 4 replications: A (control), B (28°C), C (30°C) and D (32°C). The results showed that the application of different temperatures had a significant effect on the hatching of the Jurung Fish (Tor tambra) eggs. The results of Duncan's further test analysis showed that the 28°C temperature treatment was the best compared to other temperatures. This study recommends that further research is needed on larval abnormalities at different water temperatures.
Growth performance and efficiency of protein utilization in giant tiger prawn, Penaeus monodon reared in tarpaulin pond with and without faecal chamber Saade, Edison; Fachruddin, Liestiaty; Anshary, Hilal; Lante, Samuel; Haryati, Haryati; Said, Rosmala D.; Wanda, Amalia; Arlini, Fitriwi
Tomini Journal of Aquatic Science VOLUME 2 ISSUE 2, NOVEMBER 2021
Publisher : Gorontalo State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/tjas.v2i2.13347

Abstract

The accumulation of organic matter at the bottom of the pond greatly affects nutrient metabolism, feed efficiency, growth and productivity in giant tiger prawn cultivation. One of the causes is improper pool bottom construction The purpose of this study was to compare the growth performance and efficiency of protein utilization in giant tiger prawns consuming artificial feed supplemented with multi-enzymes and reared in tarpaulin ponds constructed between not and using the faecal chamber (FAMBER) or the space of metabolic waste and unconsumptioned feed (SOMECOF) at the bottom of the pond with a recirculating aquaculture system (RAS). A tarpaulin pond with a diameter of 3 m and a height of 100 cm filled with 80 cm of seawater. The tarpaulin pond is equipped with a transparent plastic roof, seawater and aeration installation, and a filter in the water pump tank. The average body weight of the experimental prawn used were 8-9 g. The feed given is pellet type artificial feed supplemented with multi-enzymes at a dose of 30 cc/kg of feed. The frequency of feeding were four times a day, namely at 07:00; 12:00; 17:00 and 22:00 with a dose of 5%. The parameters measured were growth performance including growth, condition factors and feed efficiency, while the efficiency of protein utilization included protein content, protein efficiency ratio, amino acid profile, index and score of essential amino acids of feed and experimental prawn. Data analysis was done descriptively. The results showed that all parameters of growth performance and efficiency of protein utilization in tiger prawns reared in tarpaulin ponds using FAMBER were better than those without FAMBER. Based on the results of the study, it was concluded that keeping giant tiger prawns in a tarpaulin pond using a FAMBER is better than not using a FAMBER.
Analysis of growth and reproduction of yellowstripe scad (Selaroides leptolepis) La Nane
Tomini Journal of Aquatic Science VOLUME 2 ISSUE 2, NOVEMBER 2021
Publisher : Gorontalo State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/tjas.v2i2.19489

Abstract

The waters of Tomini Bay are waters that have quite a lot of natural resources. One of the resources in these waters is the yellowstripe scad fish (Selaroides leptolepis). This observation aims to study the reproductive biology aspects of the yellowstripe scad fish, including length and weight, sex ratio, gonadal maturity level, gonadal maturity index, and fecundity in order to provide information for planning options for the management of yellowstripe scad fish resources so that they can be utilized optimally and sustainably. The observation was conducted on May 4, 2019. Fish sample analysis was carried out at the Hydrobiology and Biometrics Laboratory, Gorontalo State University. The results of the observation showed that the average length of the yellowstripe scad fish was 200 mm and the weight was 104.5 g. The length-weight relationship of yellowstripe scad fish (Selaroides leptolepis) is categorized as negative allometric with b = 1.04. The gonadal maturity index of male yellowstripe scad fish ranged from 0.008-0.034, while in females it ranged from 0.011-0.056. The average condition factor of male and female fish is 0.9962, respectively.

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