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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Korean Journal of Fisheries and Aquatic Sciences
Journal Basic Information
Journal DOI :
The Korean Society of Fisheries and Aquatic Science
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Volume & Issues
Volume 41, Issue 6 - Dec 2008
Volume 41, Issue 5 - Oct 2008
Volume 41, Issue 4 - Aug 2008
Volume 41, Issue 3 - Jun 2008
Volume 41, Issue 2 - Apr 2008
Volume 41, Issue 1 - Feb 2008
Selecting the target year
Evaluation of Bacteriological Safety for the Shellfish Growing Waters in Taean Area, Korea
Song, Ki-Cheol ; Lee, Doo-Seog ; Shim, Kil-Bo ; Lim, Chi-Won ; Mog, Jong-Su ; Byun, Han-Seok ; Park, Young-Je ; Cho, Ki-Chae ;
Korean Journal of Fisheries and Aquatic Sciences, volume 41, issue 3, 2008, Pages 155~162
DOI : 10.5657/kfas.2008.41.3.155
The seawater in the Taean area was surveyed to evaluate the conditions of the bay and compliance with the bacteriological criteria for a designated area for shellfish production for export. Samples of seawater were collected monthly at 34 sampling stations established in the survey area from January 2002 to December 2004. The bacterial density in the coastal area close to a pollution source located to the northeast of the survey area was higher than in the open sea to the west. The bacteriological counts in the water did not change with 16.5mm of rainfall, but increased abruptly after 65.4mm of rainfall. The total coliform and fecal coliform most probable numbers (MPNs) of 1,224 seawater samples in the survey area were <1.8-2,400 and <1.8-790 MPN/100 mL, respectively. The geometric mean and estimated 90th percentile of total coliforms were 1.9-3.4 and 2.7-26.3 MPN/100mL, respectively, and for fecal coliforms were <1.8-2.6 and 1.8-12.0 MPN/100mL, respectively. The bacteriological water quality in the Taean seawater area met the National Shellfish Sanitation Program criteria for an approved area and the Korea Shellfish Sanitation Program criteria for a designated area for shellfish production for export.
Characterizing the Quality of Salted Mackerel Prepared with Deep Seawater
Kim, Gwang-Woo ; Kim, Hye-Kyung ; Kim, Jeong-Sik ; An, Hyo-Yeong ; Hu, Gil-Won ; Son, Jin-Ki ; Kim, Ok-Seon ; Cho, Soon-Yeong ;
Korean Journal of Fisheries and Aquatic Sciences, volume 41, issue 3, 2008, Pages 163~169
DOI : 10.5657/kfas.2008.41.3.163
This study investigated the quality of salted mackerel prepared with deep seawater concentrate and salt. The quality of the salted mackerel product prepared with deep seawater was compared to that prepared with surface and intermediate seawater salts, sun-dried salt, and refined salt. After preparing the salted mackerel products using the five salts, the products were stored at
for 35 days. Quality characteristics compared were the acid value (AV), peroxide value (POV), lipophilic browning, volatile basic nitrogen (VBN), pH, viable cell count, and sensory factors. The deep seawater salted mackerel product had the lowest AV, POV, browning value, and viable cell counts, compared to the others, while it had the highest score in the sensory evaluation.
Quality of Fried Fish Paste Prepared with Sand-lance (Hypoptychus dybowskii) Meat and Propolis Additive
Kim, Gwang-Woo ; Kim, Ga-Hyeon ; Kim, Jeong-Sik ; An, Hyo-Yeong ; Hu, Gil-Won ; Park, In-Suk ; Kim, Ok-Seon ; Cho, Soon-Yeong ;
Korean Journal of Fisheries and Aquatic Sciences, volume 41, issue 3, 2008, Pages 170~175
DOI : 10.5657/kfas.2008.41.3.170
We made sand-lance meat paste containing 0.1-0.5% propolis to improve the quality of the product. The quality characteristics were analyzed by the acid value, peroxide value, volatile basic nitrogen, pH, viable cell count, and sensory evaluation. The fried sand-lance meat paste made with added propolis had a lower acid value, peroxide value, and volatile basic nitrogen content after frying compared to the control prepared with potassium sorbate. The antioxidant and antispoiling effect of propolis on the fried fish meat paste increased with the amount of propolis added. The fried sand-lance meat paste made with 0.2% added propolis was very acceptable. In addition, the bitter taste of the sand-lance meat paste containing 0.2% propolis was blocked by adding 2% sweet amber powder to the paste.
Fractionation of Endoprotease from Viscera of the Argentina Shortfin Squid Illex argentinus
Kim, Hye-Suk ; Kim, Jin-Soo ; Heu, Min-Soo ;
Korean Journal of Fisheries and Aquatic Sciences, volume 41, issue 3, 2008, Pages 176~181
DOI : 10.5657/kfas.2008.41.3.176
To evaluate the effective use of endoprotease from squid viscera as a food processing aid, various methods of fractionating endoprotease from viscera of the Argentina shortfin squid (Illex argentinus) were evaluated. The endoprotease-positive fractions of each fractionation were fraction II (30-40%, w/w) with cold acetone, fraction IV (50-60% saturation) with ammonium sulfate, fraction UF with anion exchange chromatography, and fraction II (15-24 kDa) with gel filtration. The specific activities (approximately 25 U/mg) of the fractions using ammonium sulfate and gel filtration were higher than the others. Total azocaseinolytic activity and recovery of the positive fraction using gel filtration were 806.95U and 37.82%, respectively, and were the highest among the positive fractions. Based on the results, gel filtration was the most efficient method for fractionating endoprotease from the viscera of Illex argentinus.
Biochemical Characteristics of Three Migratory Populations of Chum Salmon, Oncorhynchus keta, Spawning in Korea
Kim, Su-Kyoung ; Seong, Ki-Baik ; Lee, Chae-Sung ; Kim, Young-Dae ; Kim, Wan-Ki ; Jo, Q-Tae ; Jeon, Chang-Young ; Gong, Yong-Geun ;
Korean Journal of Fisheries and Aquatic Sciences, volume 41, issue 3, 2008, Pages 182~187
DOI : 10.5657/kfas.2008.41.3.182
Nine biochemical characteristics of female Oncorhynchus keta subpopulations that migrate to three streams (Namdaechun, Myeongpachun, Oshipchun) in Gangwon, Korea, were evaluated during November 2006: aspartate aminotransferase, alanine aminotransferase, creatine kinase, triglyceride, cholesterol, glucose, hemoglobin, and urea in the blood and RNA/DNA in muscle. The three subpopulations were identical morphologically, but differed in their biochemical characteristics. The RNA/DNA ratio could be useful for distinguishing the subpopulations. RNA/DNA ratios of the Namdaechun and the Myeongpachun and Oshipchun subpopulations were
, respectively. The difference was statistically significant (P<0.05). By contrast, the blood parameters were somewhat ambiguous.
Antimicrobial Activities of Alkyl Gallates Alone and in Combination with Antibiotics Against the Fish Pathogenic Bacteria Edwardsiella tarda and Vibrio anguillarum
Kang, So-Young ; Kang, Ji-Young ; Kim, Su-Yeon ; Kim, Do-Hyung ; Oh, Myung-Joo ;
Korean Journal of Fisheries and Aquatic Sciences, volume 41, issue 3, 2008, Pages 188~192
DOI : 10.5657/kfas.2008.41.3.188
Methyl gallate isolated from bark of the tree Rhus verniciflua Stokes has significant antimicrobial activity against the fish pathogenic bacteria Edwardsiella tarda and Vibrio anguillarum. To evaluate the antimicrobial activity of gallate derivatives, eight alkyl gallates were tested. Ethyl gallate and propyl gallate had the highest activities, with MICs of
against E. tarda. For V. anguillarum, propyl gallate and butyl gallate were highly effective, with MICs of
. When used in combination with antibiotics, methyl gallate exhibited synergistic effects with oxytetracycline against E. tarda and with norfloxacin against V. anguillarum. These results suggest that short-chain alkyl gallates can be used as alternatives to antibiotics against the fish pathogenic bacteria.
Effects of Dietary Spirulina, Chlorella, and Astaxanthin on the Body Color of Red- and White-colored Carp, Cyprinus carpio
Kim, Yi-Oh ; Jo, Jae-Yoon ; Oh, Sung-Yong ;
Korean Journal of Fisheries and Aquatic Sciences, volume 41, issue 3, 2008, Pages 193~200
DOI : 10.5657/kfas.2008.41.3.193
We experimentally investigated effects of four concentrations (4, 6, 8, and 10%) each of dietary Spirulina and Chiorella, as well as four concentrations of dietary astaxanthin (40, 60, 80, and 100 ppm in Carophyll Pink), on the body color of red- and white-colored carp, Cyprinus carpio. The total carotenoid concentration in the skin tissue of the red parts of the carp fed dietary Spirulina, Chiorella, and astaxanthin increased up to the second week of the experiment but decreased thereafter. The redness value of the Spirulina-and Chiorella-treated fish decreased up to the sixth week of the experiment and increased thereafter. However, the redness value of the astaxanthin-treated fish consistently increased, beginning in the second week. Of the three agents tested, astaxanthin in Carophyll Pink was the most effective at enhancing the redness of both red- and white-colored carp. The redness value of the fish did not statistically differ among the various concentrations of astaxanthin. Therefore, dietary supplementation with 40ppm astaxanthin would be the most economical method for enhancing the redness of red- and white-colored carp fingerlings.
Composition of Marine Algal Community at the Intertidal Zone in Gwangyang Bay, South Sea, Korea
Choi, Chang-Geun ; Huh, Sung-Hoi ;
Korean Journal of Fisheries and Aquatic Sciences, volume 41, issue 3, 2008, Pages 201~207
DOI : 10.5657/kfas.2008.41.3.201
The seasonal variation and vertical distribution of the marine algal community were investigated using the quadrat method from February 2006 to January 2007 at 10 sites in Gwangyang Bay, Korea. In total, 48 red, 17 brown, and 13 green algal taxa were identified. The algal vertical distribution in the intertidal zone was characterized by Ulva pertusa, while the upper tidal zone was dominated by Gelidium divaricatum. The middle zone was primarily composed of Enteromorpha linza, Sargassum thunbergii, and Chondracanthus intermedia, whereas Hizikia fusiformis, Sargassum thunbergii, Gelidium amansii, and Corallina pilulifera characterized the low tidal zone. Results of cluster analysis indicated that algal composition fell into two groups, which were composed of species in the inland and open sea. In conclusion, the number of species, diversity, and abundance of vegetation in this area were remarkably reduced compared to previous studies in Gwangyang Bay.
Marine Communities around Artificial Reefs Located in Ikata, Shikoku, Japan
Choi, Chang-Geun ;
Korean Journal of Fisheries and Aquatic Sciences, volume 41, issue 3, 2008, Pages 208~214
DOI : 10.5657/kfas.2008.41.3.208
This study monitored a variety of marine communities during monthly or bimonthly censuses from February 1999 to August 2000. The communities investigated included artificial reefs composed of various substrates, which were placed on an area of sandy bottom at 8, 10, and 13m depths in Muronohana, Ikata, Shikoku, Japan. Economically important shell fishes, such as the turban shell and abalone, appeared on the artificial reefs after 1 month of construction. Shell fishes were recorded at levels of five to 20 individuals per reef. A total of 37 species (4 orders, 19 families) were identified during the experimental period. Apagon semilineatus, Trachurus japonicus, Pteragogus sp., and Pterogobius elapoides accumulated over an average of 100 individuals during the study period. Apagon semilineatus, Pteragogus sp., and P. elapoides accumulated over 1,000 individuals on all artificial reefs in May 1999. Trachurus japonicus reached well over 500 individuals in the artificial iron reef during June and July 2000. Higher monthly variation in fish abundance occurred during periods of high temperature, as compared to periods of low temperature between December 1999 and March 2000. More fish were observed in the artificial iron reef than in the artificial concrete reef, because the former offered a broader inner space and the shadows of the roofs served as a shelter for fish.
The Hydraulic Characteristics of Artificial Reefs Used to Construct Seaweed Beds
Sohn, Byung-Kyu ;
Korean Journal of Fisheries and Aquatic Sciences, volume 41, issue 3, 2008, Pages 215~220
DOI : 10.5657/kfas.2008.41.3.215
This study examined the stability of cross- and box-type artificial reefs used to construct seaweed beds. Theoretical and experimental studies have clarified the Froude similitude. However, basic data needed to develop a more stable design for artificial reefs must be collected from long-term studies and analyses of sliding caused by waves. Hydraulic experiments are important for solving problems in the design and construction of artificial reefs. This study examined some design parameters for artificial reefs under wave and currents. The results showed the stability of cross- and box-type artificial reefs for constructing seaweed beds using a dimensionless parameter (the surf similarity parameter), water particle velocity, and so on. The hydraulics experiment indicated that the stability of artificial reefs differed according to their method of installation. This implies that artificial reefs should be installed after considering various environmental factors, such as wave breaking, reflection, and sediments.
Home Ranges and Homing Routes of the Black Rockfish Sebastes schlegeli Measured by Acoustic Telemetry
Kang, Kyoung-Mi ; Shin, Hyeon-Ok ;
Korean Journal of Fisheries and Aquatic Sciences, volume 41, issue 3, 2008, Pages 221~227
DOI : 10.5657/kfas.2008.41.3.221
The black rockfish (Sebastes schlegeli) is an important commercial species in Korean fisheries. We used acoustic telemetry using coded ultrasonic transmitters to track the home ranges and homing routes of the black rockfish that inhabit in the Tongyeong marine ranching area. Twenty-four fish were released at five points. The distance from the capture point (C1) to the released point was 0 (R7), 0.2 (R1), 0.9 (R2), 1.3 (R3) and 1.9 (R4) km. Two of the three fish released at R1 (0.2 km) returned home in under 48hrs. Another was found 0.8km from C1. Two of the five fish released at R2 returned home, but it took over 250 days. None of the ten fish released at R3 and R4 returned home. Three of the ten fish moved 1.1-2.6 km from C1 and were found near a cage or a natural reef. Six fish were released at R7. The younger the fish, the wider was its movement range around the artificial reefs. Fish over 3 years old were likely to move less far.
Comparison of Panning and Sodium Polytungstate Methods for Separating Dinoflagellate Cysts
Kang, Yoon-Ja ; Moon, Chang-Ho ; Cho, Hyun-Jin ;
Korean Journal of Fisheries and Aquatic Sciences, volume 41, issue 3, 2008, Pages 228~231
DOI : 10.5657/kfas.2008.41.3.228
Two methods for separating dinoflagellate cysts from marine sediments were compared: panning and sodium polytungstate (SPT). After pretreatment with the SPT solution, Protoperidinium species had a high germination rate and cell growth rate. The germinated cells grew continuously, even in a low nutrient environment. Alexandrium cysts did not germinate, because their germination is usually active in winter. Using SPT solution, the separation process was easier, quicker, and caused much less eye fatigue than the panning method. Therefore, SPT solution offers a convenient way of pretreating dinoflagellate cysts for separation and analysis.