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한국수산과학회(구 한국수산학회)> Fisheries and Aquatic Sciences

Fisheries and Aquatic Sciences update

  • : 한국수산과학회(구 한국수산학회)
  • : 수해양분야  >  수산생물학
  • : KCI등재
  • : SCOPUS
  • : 연속간행물
  • : 계간
  • : 2234-1749
  • : 2234-1757
  • : Journal of Fisheries Science and Technology(~2008)→Fisheries and Aquatic Sciences(2009~)

수록정보
수록범위 : 1권1호(1998)~21권2호(2018) |수록논문 수 : 852
Fisheries and Aquatic Sciences
21권2호(2018년 06월) 수록논문
최근 권호 논문
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KCI등재 SCOPUS

1Isolation and characterization of acid-soluble bluefin tuna (Thunnus orientalis) skin collagen

저자 : Teruyoshi Tanaka , Kenji Takahashi , Kazufumi Tsubaki , Maika Hira

발행기관 : 한국수산과학회(구 한국수산학회) 간행물 : Fisheries and Aquatic Sciences 21권 2호 발행 연도 : 2018 페이지 : pp. 1-8 (8 pages)

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In this study, we isolated and characterized the acid-soluble skin collagen of Pacific bluefin tuna (PBT, Thunnus orientalis). The PBT skin collagen was composed of two α chains (α1 and α2) and one β chain. The denaturation temperature of PBT collagen was low although it was rich in proline and hydroxyproline. The primary structure of PBT skin collagen was almost identical to that of calf and salmon skin collagen; however, it differed with respect to the epitope recognition of the antibody against salmon type I collagen. These results suggest that the primary structure of skin collagen was highly conserved among animal species, although partial sequences that included the epitope structure differed among collagens.

KCI등재 SCOPUS

2Anti-inflammatory effect of ozonated krill (Euphausia superba) oil in lipopolysaccharide-stimulated RAW 264.7 macrophages

저자 : Hong-deok Kim , Soo-bin Lee , Seok-chun Ko , Won-kyo Jung , Yo

발행기관 : 한국수산과학회(구 한국수산학회) 간행물 : Fisheries and Aquatic Sciences 21권 2호 발행 연도 : 2018 페이지 : pp. 1-9 (9 pages)

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Background: Inflammation has been known to associate with many human diseases. The objective of this study was to evaluate an anti-inflammatory effect of ozonated krill (Euphausia superba) oil, which was prepared by the treatment of krill oil using ozone gas. The anti-inflammatory activity was evaluated in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. Results: Ozonated krill oil significantly inhibited nitric oxide (NO) production and suppressed the mRNA and protein expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) in LPS-stimulated RAW 264.7 macrophages. Ozonated krill oil also reduced the mRNA expression of inflammatory cytokines such as interleukin (IL)-1β, IL-6, and tumor necrosis factor (TNF)-α in LPS-stimulated RAW 264.7 macrophages. To elucidate the mechanism underlying the anti-inflammatory activity of ozonated krill oil, we evaluated the effects of ozonated krill oil on the activation of mitogen-activated protein kinases (MAPKs) pathway. Ozonated krill oil suppressed the LPS-stimulated phosphorylation of p38 MAPK and c-Jun N-terminal kinases (JNK). Conclusion: This study revealed that the ozonated krill oil exhibited an anti-inflammatory effect in LPS-stimulated RAW 264.7 macrophages. To the best of our knowledge, this is the first report that ozonated krill oil suppressed pro-inflammatory mediator and cytokine expression in LPS-stimulated RAW 264.7 macrophages by inhibiting the phosphorylation of p38 MAPK and JNK.

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The objective of this study was to investigate the anti-inflammatory effects of the pepsinolytic hydrolysate from the fish frame, Johnius belengerii, on lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. The J. belengerii frame hydrolysate (JFH) significantly suppressed nitric oxide (NO) secretion on LPS-stimulated RAW264.7 macrophages. Moreover, the JFH markedly inhibited the levels of protein and mRNA expression of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2). Furthermore, the LPS-stimulated mRNA expression of pro-inflammatory cytokines, including tumor necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6 was downregulated when cells were cultured with the JFH. The JFH significantly reduced the phosphorylation of c-Jun N-terminal kinase (JNK) and the translocation of nuclear factor-kappa B (NF-κB) in macrophages. As the result, the JFH has the potential anti-inflammatory activity via blocking the JNK and NF-κB signal pathways.

KCI등재 SCOPUS

4Inhibition of MMP-2 and MMP-9 activities by solvent-partitioned Sargassum horneri extracts

저자 : Fatih Karadeniz , Seul-gi Lee , Jung Hwan Oh , Jung-ae Kim , C

발행기관 : 한국수산과학회(구 한국수산학회) 간행물 : Fisheries and Aquatic Sciences 21권 2호 발행 연도 : 2018 페이지 : pp. 1-7 (7 pages)

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Background: Matrix metalloproteinases (MMPs) are linked with several complications such as metastasis of cancer progression, oxidative stress, and hepatic fibrosis. Brown seaweeds are being extensively studied for their bioactive molecule content against cancer progression. In this context, Sargassum horneri was reported to possess various bioactivities including antiviral, antimicrobial, and anti-inflammatory partly due to its phenolic compound content. Methods: In this study, potential of S. horneri was evaluated through anti-MMP effect in HT1080 fibrosarcoma cells. S. horneri crude extract was fractionated with organic solvents, namely, water (H2O), n-buthanol (n-BuOH), 85% aqueous methanol (85% aq. MeOH), and n-hexane. The non-toxicity of fraction samples (Sargassum horneri solvent-partitioned extracts (SHEs)) was confirmed by cell-viability assay. SHEs were tested for their ability to inhibit MMP enzymatic activity through gelatin digestion evaluation and cell migration assay. Expressions of MMP-2 and MMP-9 and tissue inhibitors of MMP (TIMPs) were evaluated by reverse transcription and Western blotting. Results: All fractions inhibited the enzymatic activities of MMP-2 and MMP-9 according to gelatin zymography. Except H2O fraction, fractions hindered the cell migration significantly. All tested fractions suppressed both mRNA and protein levels of MMP-2, MMP-9, TIMP-1, and TIMP-2. Conclusion: Overall, current results suggested that S. horneri has potential to be a good source for anti-MMP agents, and further investigations are underway for better understanding of the action mechanism and isolation and elucidation of the bioactive molecules.

KCI등재 SCOPUS

5Purification and characterization of β-secretase inhibitory peptide from sea hare (Aplysia kurodai) by enzymatic hydrolysis

저자 : Jung Kwon Lee , Sung Rae Kim , Hee-guk Byun

발행기관 : 한국수산과학회(구 한국수산학회) 간행물 : Fisheries and Aquatic Sciences 21권 2호 발행 연도 : 2018 페이지 : pp. 1-8 (8 pages)

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Amyloid plaque, also called senile plaque, the product of aggregation of β-amyloid peptides (Aβ), is observed in brains of the patients with Alzheimer's disease (AD) and is one of the key factors in etiology of the disease. In this study, hydrolysates obtained from the sea hare (Aplysia kurodai) were investigated for β-secretase inhibitory peptide. The sea hare's muscle protein was hydrolyzed using six enzymes in a batch reactor. Trypsin hydrolysate had highest β-secretase inhibitory activity compared to the other hydrolysates. β-secretase inhibitory peptide was separated using Sephadex G-25 column chromatography and high-performance liquid chromatography on a C18 column. β-secretase inhibitory peptide was identified as eight amino acid residues of Val-Ala-Ala-Leu-Met-Leu-Phe-Asn by N-terminal amino acid sequence analysis. IC50 value of purified β-secretase inhibitory peptide was 74.25 μM, and Lineweaver-Burk plots suggested that the peptide purified from sea hare muscle protein acts as a competitive inhibitor against β-secretase. Results of this study suggest that peptides derived from sea hare muscle may be beneficial as anti-dementia compounds in functional foods or as pharmaceuticals.

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Substitution effect of white radish' by-product (WRB) and tunic of sea squirt (TSS) for Undaria in feed on growth and carcass composition of abalone was determined. Eight-hundred forty juveniles were distributed into 12 containers. Three formulated diets were prepared in triplicate. A 15% Undaria was included in the control diet. The 15% Undaria was substituted with a same amount of WRB and TSS, referred to as the DRG and TSS diets, respectively. Finally, dry Undaria was also prepared to compare effect of the formulated diets on performance of abalone. The experimental diets were fed to abalone once a day at a satiation level with a little leftover. The feeding trial lasted for 16 weeks. Crude protein, crude lipid, and ash content of the experimental diets changed over all period of time. Higher crude protein and lipid and ash contents retained in all formulated diets compared to the Undaria were observed at 24 and 48 h after seawater immersion. Survival of abalone was not affected by the experimental diets. Weight gain and specific growth rate (SGR) of abalone fed the TSS diet was greater than all other diets. Weight gain and SGR of abalone fed the control diet was not different from those of abalone fed the WRB diet. Proximates of the soft body of abalone was affected by the diets. In conclusion, WRB and TSS are the promising feed ingredients to replace Undaria in abalone feed; especially, TSS is superior to either Undaria or WRB. The formulated diets produced improved growth performance of abalone over the single Undaria.

KCI등재 SCOPUS

7Estimation of primary production of the waters around rack oyster farm at Wando, Korea

저자 : Woo-geon Jeong , Sang-man Cho

발행기관 : 한국수산과학회(구 한국수산학회) 간행물 : Fisheries and Aquatic Sciences 21권 2호 발행 연도 : 2018 페이지 : pp. 1-7 (7 pages)

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To establish a comprehensive management strategy, as part of the optimization of cultural practice for an oyster rack culture system, we used a numerical model to estimate the primary production in the waters on the eastern coast of Wando island, South Korea. The estimated primary production ranged from 17.12 to 1052.55 mgC m-2 day-1 (204.22 ± 224.75 mgC m-2 day-1 in average). Except for the times of peak phytoplankton blooms, the estimated primary production (PP) was consistently under 200 mgC m-2 day-1, which is more similar to the value of PP measured off the western coast of South Korea than the southern coast. No clear relationship was observed between nitrogen content and rainfall with the exception of heavy rainfall events, indicating that precipitation might not be the main source of nutrients in these waters. No clear influence was observed from Doam tidal discharge, located 24 km north from these waters due to main tide comes in this area from the channel between Gunwe-myeon in Wando island and Pukpyeong-myeon in Haenam-gun. Because of the shallow water depth and strong tidal current, resuspension of sediments, which causes an input of nitrogen into the system, could be easily caused by even mild wind and the infrequent passing of ships. Microscopic examination of the phytoplankton composition showed additional contribution of benthic species such as Paralia sulcata into the waters, which increase the productivity of oyster farms in the waters. The availability of nitrate and phosphate for primary production was temporarily limited throughout most of the spring and autumn blooming season.

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8Interspecific hybridization in seahorses: artificially produced hybrid offspring of Hippocampus kuda and Hippocampus reidi

저자 : Sang-yun Han , Sum Rho , Gyeong Eon Noh , Jin-koo Kim

발행기관 : 한국수산과학회(구 한국수산학회) 간행물 : Fisheries and Aquatic Sciences 21권 2호 발행 연도 : 2018 페이지 : pp. 1-8 (8 pages)

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Interspecific hybridization experiments were conducted between the common seahorse Hippocampus kuda (male) and the slender seahorse H. reidi (female) during artificial rearing to develop a new aquarium fish with unique polyandrous mating. Molecular analysis via mitochondrial DNA (mtDNA) cytochrome b and nuclear DNA (ncDNA) ribosomal protein S7 gene supported the hybridization between the two species, and the hybrid also showed morphological characteristics of both species. Juveniles of H. kuda have dense melanophores on the whole body or only on the trunk and tail, whereas juveniles of H. reidi have thin melanophores on the whole body or present in stripes only along their prominent trunk and tail rings. However, all the hybrid juveniles had dense melanophores only on the tail, with the striped trunk rings, thus showing an intermediate pattern, and these patterns were limited to the fairly early stage of development (1-10 days old). In contrast, the two eye spines in the hybrid were apparent after 9 days old, which were not inherited from H. kuda (one eye spine), but from H. reidi (two eye spines). According to LOESS (local regression) analysis, the growth rate increased between 20 and 25 days, and the hybrids grew faster than H. kuda when they entered the explosive second phase of growth between 25 and 45 days for all the seahorses. This study highlights the hybridization between H. kuda and H. reidi may contribute to the improved taxonomic information of young seahorses.

KCI등재 SCOPUS

9Monitoring of emaciation disease in cultured Paralichthys olivaceus of Jeju island during 2014-2015

저자 : Seung Min Kim , Lyu Jin Jun , Da Won Lee , Hyun Kyung Park , H

발행기관 : 한국수산과학회(구 한국수산학회) 간행물 : Fisheries and Aquatic Sciences 21권 2호 발행 연도 : 2018 페이지 : pp. 1-7 (7 pages)

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This study investigated the trend in emaciation infection outbreak in olive flounder (Paralichthys olivaceus) of Jeju island, South Korea, during 2014-2015. A total of 900 fish were systematically examined by PCR method using the EM-F/EM-R primer set in April, May, September, November, and December 2014, and the infection rate was recorded. In 2015, the same examination was conducted in March, May, July, and October but with 660 fish. It was found that the infection rate was 18.3~71.6% in 2014, which increased to 16.3~90.3% in 2015. Furthermore, September and December in 2014 and March, July, and October in 2015 showed a relatively higher infection rate. According to the infection trend analysis, which depended on the sample size, the infection occurred in all of fish sizes in this study and 11~30 cm fish group showed the highest infection rate. Histological examination confirmed that the kidney areas of the emaciating infected olive flounder contained several spores of 4~9 μm, and in severe cases, the elimination and destruction of tissue were confirmed by PCR. Thus, an important portion of farmed olive flounders in the Jeju region suffers from emaciation disease. This epidemiological survey serves as a useful reference on the emaciation disease of cultured olive flounders in Jeju.

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