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NIKe Jurnal Ilmiah Perikanan dan Kelautan | Fisheries and Marine Scientific Journal
Published by Universitas Negeri Gorontalo
ISSN : 23032200     EISSN : 27225836     DOI : https://doi.org/10.37905/.v0i0.6885
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science Social Sciences
The NIKe Journal is published by the Faculty of Fishery and Marine Sciences - Universitas Negeri Gorontalo. The NIKe Journal publish quarterly on March, June, September and December. Publishing research results in the fields of fisheries and marine science: management of aquatic resources; aquaculture; capture fisheries; and socio-economic-cultural affairs of coastal communities.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 5 Documents
 1 
Search results for , issue "VOLUME 8 ISSUE 3 | SEPTEMBER 2020" : 5 Documents clear
Effective and Efficient Spawning Techniques of Koi Goldfish Adris Robinson Dai; Rully Tuiyo; Syamsuddin Syamsuddin
The NIKe Journal VOLUME 8 ISSUE 3 | SEPTEMBER 2020
Publisher : Faculty of Fishery and Marine Sciences - Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/nj.v8i3.9857

Abstract

This study aims to determine effective and efficient koi fish spawning techniques and to determine the reproductive stages and fish behavior during spawning, as well as to identify problems in the spawning process. The procedure of this research consists of several stages, namely: Spawning Container Preparation, Parent Selection, Parent Release, Spawning Process, Quality of Spawning Water, Egg Counting. The results showed that natural spawning techniques were more effective and efficient. The size and weight of the fish are very influential for the number of eggs to be produced. One of the factors that support the success of a spawning is the selection to get good quality broodstock resulting in a high number of seed production. Keywords: koi; spawning; effectivity; efficiency.
Community Structure of Macrozoobenthos in Lake Limboto Abdul Hafidz Olii; Arfiani Rizki Paramata
The NIKe Journal VOLUME 8 ISSUE 3 | SEPTEMBER 2020
Publisher : Faculty of Fishery and Marine Sciences - Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/nj.v8i3.9858

Abstract

This study aims to determine the structure of the macrozoobenthic community in Limboto Lake, Gorontalo Province. Sampling was carried out at 5 stations and 3 repetitions using the Ekman Grab tool and prepared with a filter with a net size of 100 µm. Collecting data using purposive random sampling method and the influence of the macrozoobenthic community structure with physical and chemical parameters was analyzed using the CANOCO 4.5 application. The results showed that the macrozoobenthic community structure in Limboto Lake varied, with the diversity index at Station 1 and Station 2 being in the medium category, Station 3, Station 4 and Station 5 being classified as low, the uniformity index at Station 1 and Station 2 was evenly distributed, Station 3, Station 4 and Station 5 are uneven. The dominance index at Station 3, Station 4 and Station 5 shows that there are species that dominate. The highest total macrozoobenthic abundance was at Station 3, namely 427,643 individuals / m3 and the lowest was at Station 2, namely 2,038 individuals / m3. The results of the analysis showed that the substrate had the greatest influence on the macrozoobenthic community structure and was followed by other physical-chemical parameters. Keywords: Macrozoobenthos; Lake Limboto; community structure
The Effect of Different Bait on Squid Fishing Using Totabito Abdul Muin Lamela; Alfi Sahri Baruadi; Sitti Nursinar
The NIKe Journal VOLUME 8 ISSUE 3 | SEPTEMBER 2020
Publisher : Faculty of Fishery and Marine Sciences - Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/nj.v8i3.9859

Abstract

The purpose of this study was to determine the effect of different types of bait on the catch of squid (Loligo Sp) using a totabito fishing gear, by comparing and seeing the effect of the catch on each bait used as treatment. This research was conducted in August 2017 - May 2018 in the waters of Tomini Gulf, in Kayubulan Village, Batudaa Beach District, Gorontalo District. The research is an experimental fishing method and uses analysis of variance in the RAL mathematical model. This study used 3 types of bait as treatment, namely mackerel as treatment A, squid as treatment B, shrimp as treatment C. The results showed that, based on the results of analysis of variance (ANOVA), the treatment of different types of bait had a significant effect, significantly different from the catch of squid. Furthermore, based on the results of further tests using the smallest significant difference (LSD), it was found that treatment C was significantly different from treatment A and B. So that treatment C could be used as an effective bait in catching squid. Keywords: Bait; squid; Loligo sp.; totabito.
Increasing Population of Daphnia Magna Natural Feed Using the Probiotic Effective Microorganisms-4 (EM4) Muklisnah Djalil; Yuniarti Koniyo; Mulis Mulis
The NIKe Journal VOLUME 8 ISSUE 3 | SEPTEMBER 2020
Publisher : Faculty of Fishery and Marine Sciences - Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/nj.v8i3.9851

Abstract

This study aims to determine the effectiveness dose of EM4 (Effective Microorganism-4) pro-biotic to increase the population of Daphnia magna natural feed. This study used a completely randomized design (CRD) with three treatments and three replications. The treatment in this study used pro-biotic EM4 with a dose of 1 ml for treatment A, a dose of 3 ml for treatment B. 5 ml dose for treatment C and a dose of 7 ml for treatment D. The highest population growth rate was found in treatment A dose 1 ml. Followed by treatment B with a dose of 3 ml, treatment C at a dose of 5 ml and the lowest at treatment D at a dose of 7 ml with values of 0.29, 0.09, 0.05 and 0.03 respectively. ANOVA analysis showed that the provision of pro-biotic EM4 had an effect on the population growth rate of Daphnia magna. The data from the further test of the least significant difference (LSD) showed that treatment A was significantly different from treatment B, C and D. Treatment B, C and D were not significantly different. The results of water quality measurements for temperatures ranging from 26-29 ° C, pH ranges from 5-6 and Dissolved Oxygen (DO) ranges from 4.4-4.9 mg / liter. This condition is the optimum range in Daphnia magna culture. Keywords: Daphnia magna; EM4 (Effective Microorganisme-4); population increase
Mercury Contamination in Limboto Lake Sri Nawangsari Niode; Hasim Hasim; Faizal Kasim
The NIKe Journal VOLUME 8 ISSUE 3 | SEPTEMBER 2020
Publisher : Faculty of Fishery and Marine Sciences - Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/nj.v8i3.9855

Abstract

The purpose of this study was to determine the content of heavy metal mercury (Hg) in Limboto Lake waters. Sampling was conducted at 5 stations, namely Station 1 (estuary of the Biyonga River), Station 2 (estuary of the Alopohu River), Station 3 (floating net cages), Station 4 (non KJA) and Station. 5 (Outlet at Sungai Tapodu). Sampling both at the surface and the bottom of the water is only done once. Analysis of the content of mercury (Hg) was carried out at the Gorontalo Province Fishery Product Quality Development and Testing Laboratory (LPPMHP). The results showed that the mercury (Hg) content in Limboto Lake waters for Station 1 in the water samples taken was 0.027 mg / L, the sediment samples were 13.61 mg / L, for Station 2 namely water sample 0.013 mg / L and sediment sample 12.27 mg / L, Station 3, namely water sample 0.003 mg / L sediment sample 8.35 mg / L, while Station 4, namely water sample 0.0142 mg / L sediment sample 7.71 mg / L and for Station 5, water sample 0.016 mg / L sediment sample 6.79 mg / L. The condition of the heavy metal content of mercury (Hg), based on water quality standards of 0.001 mg / L and sediment quality standards of 0.2 mg / L, on average, has exceed the maximum limit, namely the level of mercury in the water is 0.0146 mg / L (> 0.001 mg / L) and the mercury level in the sediment was 9,746 mg / L (0.2 mg / L). Keywords: mercuri (Hg); water; sediment; Limboto

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