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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Fisheries and aquatic sciences
Journal Basic Information
Journal DOI :
The Korean Society of Fisheries and Aquatic Science
Editor in Chief :
Sungchul C. Bai
Volume & Issues
Volume 17, Issue 4 - Dec 2014
Volume 17, Issue 3 - Sep 2014
Volume 17, Issue 2 - Jun 2014
Volume 17, Issue 1 - Mar 2014
Selecting the target year
A Review of the Optimum Feeding Rates in Olive Flounder (5 g through 525 g) Paralichthys olivaceus Fed the Commercial Feed
Okorie, Okorie Eme ; Kim, Young Chul ; Kim, Kang-Woong ; An, Cheul Min ; Lee, Kyeong-Jun ; Bai, Sungchul C. ;
Fisheries and aquatic sciences, volume 17, issue 4, 2014, Pages 391~401
DOI : 10.5657/FAS.2014.0391
Ten feeding trials were conducted to determine and to make the guideline for the optimum feeding rates in olive flounder Paralichthys olivaceus fed extruded pellets at various growth stages at the optimum rearing water temperature. The entire trials were grouped into four growth stages, namely the first stage of juvenile (5 and 9 g), the second stage of juvenile (20, 30, 40 and 50 g), growing (240 and 317 g) and sub-adult (384 and 525 g) stages with 2, 4, 2 and 2 feeding trials, respectively. In the first and second experiments, results indicated that the optimum feeding rates for the first stage of juvenile olive flounder weighing 5 and 9 g could be >5.17 but <5.52% and >4.44 but <4.64% body weight (BW)/day, respectively. In the third, fourth, fifth and sixth experiments, results suggested that the optimum feeding rates for the second stage of juvenile olive flounder weighing 20, 30, 40 and 50 g could be >3.47 but <3.50, >2.85 but <3.53, >2.58 but <3.04 and >2.36 but <2.50% BW/day, respectively. In the seventh and eighth experiments, results showed the optimum feeding rates for growing olive flounder weighing 240 and 317 g to be >1.03 but <1.25 and >0.85 but <1.0 % BW/day, respectively. In the ninth and tenth experiments, the optimum feeding rates in sub-adult olive flounder weighing 384 and 525 g were shown to be >0.69 but <0.7 and >0.55 but <0.8% BW/day, respectively. We will compare these results with the previous studies done by other research groups.
Development of Reaction Flavors with Enzymatic Hydrolysate of Krill Euphausia superba in Ramen Sauce
Kim, Ye-Joo ; Park, Jin-Yong ; Park, Hyun-Joo ; Kim, Seon-Bong ; Chun, Byung-Soo ; Lee, Yang-Bong ;
Fisheries and aquatic sciences, volume 17, issue 4, 2014, Pages 403~408
DOI : 10.5657/FAS.2014.0403
Antarctic krill Euphausia superba is an excellent potential source of food protein. We used enzymatic hydrolysate of Antarctic krill and 10 other precursors to seek the optimum krill reaction flavor and apply to ramen sauce. Krill concentrate and powder were compared by sensory evaluation. The krill powder performed better preference, and was added to ramen sauce, which itself performed better than a commercial shrimp flavored sauce. In total, 47 and 39 volatile compounds were identified from krill concentrate and powder, respectively. Both products contained many aldehydes and sulfur-containing compounds. The whisky flavor of aldehydes lowered the shrimp flavor of the krill concentrate. Sulfur-containing compounds were found in krill powder, confirming the results from sensory evaluation.
Monthly Variations in the Nutritional Composition of Antarctic Krill Euphausia superba
Kim, Min-A ; Jung, Hae-Rim ; Lee, Yang-Bong ; Chun, Byung-Soo ; Kim, Seon-Bong ;
Fisheries and aquatic sciences, volume 17, issue 4, 2014, Pages 409~419
DOI : 10.5657/FAS.2014.0409
The proximate composition and various specific components of Antarctic krill Euphausia superba, in the catch season between March and August were investigated. Frozen krill were freeze-dried and milled. The proximate composition comprised water, proteins, fats, ash, fatty acids, and amino acids, while the specific components were vitamins, minerals, nucleotides, betaine, and astaxanthin. The moisture content of the krill ranged from 77 to 80%, with the highest value in June, and the ash content was between 12 and 13%. The protein content was lowest in May, and the fat content was 18-19%, with the highest value in March. The amino acid content varied according to the season: taurine and glycine were highest in August;
-alanine was higher in April and May; and arginine, ornithine, and lysine were highest in March. The unsaturated fat content was ~50% and omega-3 fatty acids were highest in June. Oil-soluble vitamins A and E were highest in March, and the water-soluble vitamin content was less than that of oil-soluble vitamins. The mineral content was highest in June, and the most abundant mineral was sodium at 235.60 mg/100 g krill. The content of other minerals was lowest (2.94 mg/100 g) in April, except for lead. The nucleotide content was highest in July, while the betaine content was highest in April and lowest in June. The astaxanthin content was highest in May and ranged from 6 to 10 ppm in other months.
Antioxidant and Cholinesterase Inhibitory Activities of the By-products of Three Pandalid Shrimps
Kim, Sang-Bo ; Yoon, Na Young ; Shi, Kil Bo ; Lim, Chi-Won ;
Fisheries and aquatic sciences, volume 17, issue 4, 2014, Pages 421~425
DOI : 10.5657/FAS.2014.0421
The antioxidant and cholinesterase inhibitory activities of the acetone and dichloromethane (
) extracts of the by-products (heads, shells, and tails) of Pandalus borealis, Pandalus hypsinotus, and Pandalopsis japonica belonging to the family Pandalidae were investigated and their bioactivities were compared. The antioxidant and cholinesterase inhibitory activities of the organic solvent extracts of three shrimp by-products were evaluated using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-Azino-bis[3-ethylbenzothiazoline-6-sulfonic acid] (
) radical scavenging activities, reducing power and xanthine oxidase (XO) inhibitory activity assays and Ellman's colorimetric method. The extracts of P. hypsinotus exhibited the highest antioxidant and cholinesterase inhibitory activities. The acetone extracts showed more potent activities toward antioxidant and cholinesterase inhibition compared with the
extracts. Furthermore, the total carotenoid contents of the acetone extracts were higher than those of the
extracts. Thus, the carotenoid contents may affect antioxidant and cholinesterase inhibition. Our results suggest that the shrimp by-products could act as a nutraceutical agent to prevent oxidative stress and Alzheimer's disease.
Total Mercury Contents of Antarctic Toothfish Dissostichus mawsoni Caught in the Antarctic Sea
Son, Kwang-Tae ; Kwon, Ji-Young ; Jo, Mi-Ra ; Yoon, Minchul ; Song, Ki-Cheol ; Choi, Woo-Seok ; Yeon, In-Ja ; Kim, Ji-Hoe ; Lee, Tae Seek ;
Fisheries and aquatic sciences, volume 17, issue 4, 2014, Pages 427~431
DOI : 10.5657/FAS.2014.0427
Mercury is an element of special concern for human health. Measurements of total mercury levels in fish have been taken into consideration to assess risk. In this study, the Antarctic toothfish Dissostichus mawsoni was evaluated as a potential safe food source through measurement of total mercury contents. Total mercury concentrations in Antarctic toothfish ranged from
. The total mercury concentration was significantly correlated with macroscopic values including total fish length, weight, gonadosomatic index, and maturity (P < 0.01 or 0.05). Furthermore, according to the risk assessment, the total mercury body exposure rate from Antarctic toothfish ranged from 2.125% to 2.847% of the Provisional Tolerable Weekly Intake. Therefore, the Antarctic toothfish could be used as a potential safe seafood source.
Comparison of Free and Dipeptide Lysine Utilization in Diets for Juvenile Olive Flounder Paralichthys olivaceus
Rahimnejad, Samad ; Lee, Kyeong-Jun ;
Fisheries and aquatic sciences, volume 17, issue 4, 2014, Pages 433~439
DOI : 10.5657/FAS.2014.0433
We compared the utilization efficiency of free lysine (FL) and dipeptide lysine-glycine (LG) in terms of growth performance and whole-body amino acid composition in olive flounder Paralichthys olivaceus. A basal experimental diet was formulated to contain 0.5% (basal) lysine from fish meal, and four other diets were prepared by supplementing 0.5% or 1.0% of either FL or LG. The experiment was performed in triplicate, and 20 randomly selected fish averaging
were fed one of the test diets at the rate of 3% BW/day twice daily for 6 weeks. At the end of the feeding trial, fish fed the basal diet showed significantly less weight gain than did the other groups. The results of a two-way ANOVA showed that both lysine level (P = 0.001) and type (P = 0.034) influenced growth rate; however, we found no significant interaction between lysine level and form (P > 0.05). Our results revealed a significant improvement in protein efficiency ratio (PER) with each increment of dietary lysine, and the groups fed LG-supplemented diets showed higher PER than did those offered FL. Hepatosomatic and viscerosomatic indices were significantly influenced by lysine level and form, and higher values were recorded in fish fed diets containing LG. Significantly higher whole-body arginine levels were found in LG-fed groups, and a significant interaction was observed between lysine level and form (P = 0.009). Whole-body valine and aspartic acid contents were affected by lysine level, and alanine concentration was influenced by both lysine level and form. Our findings indicate that juvenile olive flounder can utilize LG more efficiently than FL for protein synthesis.
Effects of Dietary Nutrient Content, Feeding Period, and Feed Allowance on Juvenile Olive Flounder Paralichthys olivaceus at Different Feeding Period and Ration
Kim, Byeng-Hak ; Cho, Sung Hwoan ;
Fisheries and aquatic sciences, volume 17, issue 4, 2014, Pages 441~448
DOI : 10.5657/FAS.2014.0441
We examined the effects of dietary nutrient content, feeding period, and feed allowance on compensatory growth, food use, chemical composition, and serum chemistry of juvenile olive flounder Paralichthys olivaceus. We placed 720 juvenile fish into 24 400-L flow-through round tanks (30 fish per tank).A
factorial design (diet: control (C) and high protein and lipid (HPL)
feeding period: 8 and 6 weeks
feed allowance: 100% and 90% of satiation) was applied. Fish were hand-fed twice daily, based on the designated feeding schedule. Weight gain and food consumption were affected by both the feeding period and feed allowance, but not by diet. The food efficiency ratio was not affected by diet, feeding period, or feed allowance, but the protein efficiency ratio and protein retention were affected by diet and feeding period, respectively. We found that the full compensatory growth of fish was not achieved at a restricted feeding allowance.
Effects of Food Deprivation and Feeding Ratio on the Growth, Feed Utilization and Body Composition of Juvenile Olive Flounder Paralichthys olivaceus
Cho, Sung Hwoan ;
Fisheries and aquatic sciences, volume 17, issue 4, 2014, Pages 449~454
DOI : 10.5657/FAS.2014.0449
The effects of food deprivation and feeding ratio on the growth, feed utilization and body composition of juvenile olive flounder Paralichthys olivaceus were investigated in 810 juvenile fish averaging 6.4 g in weight randomly distributed in 27 400-L flow-through tanks. A 3 [food deprivation: 8-week feeding without food deprivation (8W), 7-week feeding after 1-week food deprivation (7W) and 6-week feeding after 2-week food deprivation (6W)]
(feeding ratio: 100%, 95% and 90% of satiation, hereafter denoted by 100, 95 and 90, respectively) factorial design was applied. The weight gain of the fish was significantly affected by both food deprivation and feeding ratio. The weight gain of the fish under the 8W-100 treatment was higher than that of those under the 7W-95, 7W-90, 6W-100, 6W-95 and 6W-90 treatments, but did not differ from those of fish under the 8W-95, 8W-90 and 7W-100 treatments. The specific growth rate (SGR) and the feed intake of the fish were affected by both food deprivation and feeding ratio. However, the feed conversion ratio (FCR) was unaffected by both food deprivation and feeding ratio. The protein efficiency ratio (PER) was affected by the feeding ratio, but not by food deprivation. The protein retention (PR) was affected by food deprivation, but not by feeding ratio. Juvenile olive flounder subjected to 1-week food deprivation at 100% satiation (7W-100 treatment) achieved full compensatory growth.
Dietary Protein Requirement for Young Far Eastern Catfish Silurus asotus
Kim, Kyoung-Duck ; Kim, Kang-Woong ; Lee, Bong-Joo ; Son, Maeng Hyun ; Han, Hyon-Sob ; Kim, Jin Do ;
Fisheries and aquatic sciences, volume 17, issue 4, 2014, Pages 455~459
DOI : 10.5657/FAS.2014.0455
A feeding trial was conducted to determine the optimum dietary protein requirement of young far eastern catfish Silurus asotus. Five isocaloric diets were formulated to contain graded levels of protein (35, 40, 45, 50, and 55%). Triplicate groups of fish (initial body weight of 44 g) were hand-fed to apparent satiation for 9-weeks. Weight gain and specific growth rate of fish fed 55% protein diet were significantly higher than those of fish fed 35 and 40% protein diets, but not significantly different from those of fish fed 45 and 50% protein diets. The feed efficiency of fish fed 50 and 55% protein diets was significantly higher than that of fish fed 35, 40 and 45% protein diets. The protein efficiency ratio of fish fed 40% protein diet was significantly higher than that of fish fed 45, 50 and 55% protein diets, but not significantly different from that of fish fed 35% protein diet. The dietary protein level significantly affected whole body lipid and moisture contents. The results of this study suggest that the 45% protein in the diet is optimal for maximum growth of young far eastern catfish weighing in the range of 44 to 227 g.
Aroclor 1254 May Induce Common DNA Effects in Developing Paralichthys olivaceus Embryos and Larvae
Min, Eun Young ; Kang, Ju Chan ;
Fisheries and aquatic sciences, volume 17, issue 4, 2014, Pages 461~469
DOI : 10.5657/FAS.2014.0461
Polychlorinated biphenyls (PCBs) are persistent pollutants in aquatic environments, often causing the decline or disappearance of wild populations. In this study, we used a random amplified polymorphic DNA (RAPD) assay to evaluate the effects on the genomic DNA of olive flounder embryo and larval stages of exposure to Aroclor 1254 at concentrations of 1, 5, 10, 20, and
. We compared RAPD fingerprints of exposed and non-exposed samples. Polymorphisms were revealed as the presence and/or absence of DNA fragments between the two samples. A dose-dependent increase in the number of polymorphic bands was observed with Aroclor 1254 treatment. Also, RAPD profiles of animals exposed to Aroclor 1254 exhibited an increase in the frequency values (FV) compared to the control. A phenogram constructed using neighbor-joining method indicated that genomic template stability in developing embryo and larval stages was significantly affected at
. This study suggested that DNA polymorphisms detected by RAPD analysis could be used as an investigative tool for environmental toxicology and as a useful biomarker in early life stages for the detection of potential genotoxicants.
Genomic Organization and Isoform-Dependent Expression Patterns of Wap65 genes in Various Tissues during Immune Challenges in the Mud Loach Misgurnus mizolepis
Kim, Yi Kyung ; Cho, Young Sun ; Lee, Sang Yoon ; Nam, Yoon Kwon ;
Fisheries and aquatic sciences, volume 17, issue 4, 2014, Pages 471~478
DOI : 10.5657/FAS.2014.0471
Genomic organization, including the structural characteristics of 5'-flanking regions of two 65-kDa protein (WAP65) isoform genes associated with warm temperature acclimation, were characterized and their transcriptional responses to immune challenges were examined in the intestine, kidney and spleen of the mud loach (Misgurnus mizolepis; Cypriniformes). Both mud loach Wap65 isoform genes displayed a 10-exon structure that is common to most teleostean Wap65 genes. The two mud loach Wap65 isoforms were predicted to possess various stress- and immune-related transcription factor binding sites in their regulatory regions; however, the predicted motif profiles differed between the two isoforms, and the inflammation-related transcription factor binding motifs, such as NF-
and CREBP sites, were more highlighted in the Wap65-2 isoform than the Wap65-1 isoform. The results of qRT-PCR indicated that experimental immune challenges using Edwardsiella tarda, lipopolysaccharide or polyI:C induced the Wap65-2 isoform more than Wap65-1 isoform, although modulation patterns in response to these challenges were tissue- and stimulant-dependent. This study confirms that functional diversification between the two mud loach Wap65 isoforms (i.e., closer involvement of Wap65-2 in the acute phase of inflammation and innate immunity) occurs at the mRNA level in multiple tissues, and suggests that such differential modulation patterns between the two isoforms are related to the different transcription factor binding profiles in their regulatory regions.
A Cyan Fluorescent Protein Gene (cfp)-Transgenic Marine Medaka Oryzias dancena with Potential Ornamental Applications
Vu, Nguyen Thanh ; Cho, Young Sun ; Lee, Sang Yoon ; Kim, Dong Soo ; Nam, Yoon Kwon ;
Fisheries and aquatic sciences, volume 17, issue 4, 2014, Pages 479~486
DOI : 10.5657/FAS.2014.0479
To evaluate their potential utility as an ornamental organism, novel transgenic marine medaka Oryzias dancena strains with a highly vivid fluorescent phenotype were established through transgenesis of a cyan fluorescent protein gene (cfp) driven by the endogenous fast skeletal myosin light chain 2 gene (mlc2f) promoter. The transgenic marine medaka strains possessed multiple copies of transgene integrants and passed their fluorescent transgenes successfully to subsequent generations. Transgenic expression in skeletal muscles at both the mRNA and phenotypic levels was, overall, dependent upon transgene copy numbers. In the external phenotype, an authentic fluorescent color was dominant in the skeletal muscles of the transgenic fish and clearly visible to the unaided eye. The phenotypic fluorescent color presented differentially in response to different light-irradiation sources; the transgenics displayed a yellow-green color under normal daylight or white room light conditions, a strong green-glowing fluorescence under ultraviolet light, and a cyan-like fluorescence under blue light from a light-emitting diode.
First Record of the Hermit Crab Catapaguroides fragilis (Decapoda: Anomura: Paguridae) in the Korean Waters
Hwang, Kangseok ; Kim, Mi Hyang ; Seo, In-Soo ; Oh, Chul Woong ; Park, Jin-Ho ;
Fisheries and aquatic sciences, volume 17, issue 4, 2014, Pages 487~490
DOI : 10.5657/FAS.2014.0487
A pagurid hermit crab Catapaguroides fragilis was collected in Jeju Island, and described as new to the Korean fauna. It is the first member of the genus Catapaguroides known from Korea. Morphological descriptions of C. fragilis are presented with illustrations.
New Record of the Birdbeak Burrfish Cyclichthys orbicularis (Pisces: Diodontidae), in Korea
Lee, Won-Chan ; Kim, Jeong Bae ; Kim, Hyong Chul ; Bae, Seung Eun ; Ryu, Jung-Hwa ; Kim, Jin-Koo ;
Fisheries and aquatic sciences, volume 17, issue 4, 2014, Pages 491~496
DOI : 10.5657/FAS.2014.0491
A total of six specimens (57.03-100.72 mm in standard length) belonging to the family Diodontidae were collected around Jeju Island, Korea between July and August 2013. On the Basis of morphological and molecular analyses, we identified the specimens as Cyclichthys orbicularis (Bloch, 1785), a new record to the Korean fish fauna. Morphologically, the species is characterized by nine caudal fin rays, immovable spines on the head and body except the caudal peduncle, and small black spots dorsally. Some morphometric characters changed disproportionately with growth, which was a new finding. Caudal peduncle length, body width and preanus length to standard length tend to grow at a rate different from that of overall growth. When the 601 base pairs of mitochondrial DNA cytochrome c oxidase subunit I sequences of our specimens were compared with those of other diodontid fishes, our specimens clustered tightly around C. orbicularis (d = 0.000-0.002) in an NJ tree, with a high bootstrap value (99%). We herein describe the morphological and molecular traits of the specimens, and propose a new Korean name, "gud-ga-si-bok-sok" for the genus Cyclichthys, and "dung-geun-gud-ga-si-bok" for C. orbicularis.
New Record of the Bigtooth Pomfret Brama orcini (Pisces: Bramidae) from Korea
Lee, Woo Jun ; Kim, Jin-Koo ; Kai, Yoshiaki ;
Fisheries and aquatic sciences, volume 17, issue 4, 2014, Pages 497~501
DOI : 10.5657/FAS.2014.0497
A single specimen of Brama orcini (267.0 mm standard length, SL), belonging to the family Bramidae, was collected by purse seine from Jeju Strait, Korea, in December 2013. The specimen is characterized by having 16 gill rakers, 54 lateral line scales, and 36 vertebrae. B. orcini is distinguished from the most similar species, Brama japonica, by the number of lateral line scales (52-54 in B. orcini vs. 65-75 in B. japonica). We propose a new Korean name "Keun-bi-neul-sae-da-rae" for B. orcini.