• Title/Summary/Keyword: Fisheries Education

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Research and Development on the Traditional Fishery fermented Foods - Chemical composition of Helice tridens tientsinensis preserved in Brine - (한국 전통수산발효식품의 연구 및 개발 - 갈게(Helice tridens tientsinensis)장의 화학적 성분)

  • Choe, Sun-Nam;Kim, Jong-Bae;Yun, Sang-Sik
    • Journal of Fisheries and Marine Sciences Education
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    • v.18 no.3
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    • pp.209-217
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    • 2006
  • In this study, chemical compositions of Helice tridens tientsinensis(Htt, sea crab) and changes of chemical compositions in fermented sea crab tested according to different storage days(10, 16, 20, 25, 29, 55, 61, 67). The average amount of chemical compositions in raw Htt, it contains 77.12% of moisture, 1.96% of ash, 18.93% of crude protein, 0.26% of crude lipid. During storage time the amount of moisture and crude protein decreased, but crude lipid and ash increased. The amount of volatile basic nitrogen in Htt showed 6.56 mg/100g. The fermented sea crab in brine stored at the temperature of $5^{\circ}C$ showed 23.72 mg/100g of freshness even after 55 days. It showed first stage of decomposition(31.69 mg/100g) after 61 days. it is most efficient to store fermented sea crab at a low temperature. The amount of free amino acid composition in fresh Htt, was measured as follow ;arginine(1140.88 mg/100g), alanine(311.26 mg/100g), prorine(214.63 mg/100g), serine(113.56 mg/100g), taurine(90.80 mg/100g). The amount of amino acid in fermented sea crab increased as the storage days increased. Fatty acid contents in fresh Htt showed the largest amount of erucic acid (27.39 area%) and pentadecenoic acid (19.44 area%), oleic acid (17.68 area%), palmitic acid (11.00 area%), stearic acid (6.89 area%), and elaidic acid (6.15 area%) in order. In fermented sea crab, a small change was noticed in quantity, but the obvious increased composions were palmitoleic and heneicosanoic acid etc.

A Study on the Actual Condition of Food Hygiene Safety Awareness, Food Hygiene Attitude, and Personal Hygiene Control of Male and Female college students in South Chungcheong Province (충남지역 남녀 대학생의 식품위생안전인식, 식품위생태도, 개인위생관리에 대한 실태조사 연구)

  • Kim, Suk Hee;Chae, Byoung-Sook
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.8
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    • pp.546-556
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    • 2020
  • This study aims to provide basic data for food hygiene safety education by surveying the status of food hygiene safety awareness, attitude, and personal hygiene control of male and female college students in South Chungcheong Province, Republic of KOREA. From May 16 to June 30, 2019, 1,048 survey responses were collected at H University and analyzed statistically using SPSS 23.0. This study found males believed agricultural, livestock, and fisheries products (3.37, 3.08), and processed foods (3.40, 3.00) to be significantly safer, and information on food safety was easier to obtain (3.40, 3.00) than females. They were also more confident in choosing safe food (3.30, 2.97), than females. This indicates that males are more aware of food hygiene safety than females. On the other hand, females responded that they checked the expiration date (4.11, 4.40) and stored food according to characteristics (4.08, 4.30) than males, wash their hands after using the toilet(4.23 4.53) than males. This suggests that females were more aware of food hygiene attitudes and personal hygiene control than males. According to this study, college students' awareness of food hygiene safety and attitude, personal hygiene control showed a gender gap. Males had higher food hygiene safety awareness than females, but their awareness of food hygiene attitudes and personal hygiene control was lower. This suggests that differentiated food hygiene safety education is needed considering these gender differences.

A Study on the Educational Efficacy of a Maritime English Learning and Testing Platform (해사영어학습 및 평가 플랫폼을 활용한 교육 효과에 대한 연구)

  • Seor, Jin Ki;Park, Young-soo
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.26 no.4
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    • pp.374-381
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    • 2020
  • According to international regulations, it is mandatory for navigators or engineers to acquire suitable skillsets before their designation as a duty officer on board. One of the most important elements is Maritime English (ME), wherein students are taught a required set of basic skills that enable them to process various documents related to accidents, ship conditions, and inspections. Students have to be equipped not only with the use of general English skills but also with the coherent use of technical terms and phrases. However, due to the unique circumstances that exist in the maritime domain, the methods used for imparting maritime knowledge and the manner in which it is evaluated are restricted. Hence, this study aims to utilize an online Maritime English learning and testing platform that can be accessed on smart devices to analyze its impact on the students' learning process. An experiment was conducted on two groups of cadets, one that used the platform and another group that did not. After six-week, the experiment results showed a significant difference between the ME test scores of the two groups. The test scores were further analyzed by incorporating the students' personal elements to measure the ef icacy of the ME test platform. Therefore, the learning and evaluation processes are expected to be implemented in ways that are appropriate and convenient to specific circumstances and be widely used in the field of maritime education in the future.

Optimal Cultivation Time for Yeast and Lactic Acid Bacteria in Fermented Milk and Effects of Fermented Soybean Meal on Rumen Degradability Using Nylon Bag Technique

  • Polyorach, S.;Poungchompu, O.;Wanapat, M.;Kang, S.;Cherdthong, A.
    • Asian-Australasian Journal of Animal Sciences
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    • v.29 no.9
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    • pp.1273-1279
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    • 2016
  • The objectives of this study were to determine an optimal cultivation time for populations of yeast and lactic acid bacteria (LAB) co-cultured in fermented milk and effects of soybean meal fermented milk (SBMFM) supplementation on rumen degradability in beef cattle using nylon bag technique. The study on an optimal cultivation time for yeast and LAB growth in fermented milk was determined at 0, 4, 8, 24, 48, 72, and 96 h post-cultivation. After fermenting for 4 days, an optimal cultivation time of yeast and LAB in fermented milk was selected and used for making the SBMFM product to study nylon bag technique. Two ruminal fistulated beef cattle ($410{\pm}10kg$) were used to study on the effect of SBMFM supplementation (0%, 3%, and 5% of total concentrate substrate) on rumen degradability using in situ method at incubation times of 0, 2, 4, 6, 12, 24, 48, and 72 h according to a Completely randomized design. The results revealed that the highest yeast and LAB population culture in fermented milk was found at 72 h-post cultivation. From in situ study, the soluble fractions at time zero (a), potential degradability (a+b) and effective degradability of dry matter (EDDM) linearly (p<0.01) increased with the increasing supplemental levels and the highest was in the 5% SBMFM supplemented group. However, there was no effect of SBMFM supplement on insoluble degradability fractions (b) and rate of degradation (c). In conclusion, the optimal fermented time for fermented milk with yeast and LAB was at 72 h-post cultivation and supplementation of SBMFM at 5% of total concentrate substrate could improve rumen degradability of beef cattle. However, further research on effect of SBMFM on rumen ecology and production performance in meat and milk should be conducted using in vivo both digestion and feeding trials.

Physiological Characterization of BTEX Degrading Bacteria Microbacterium sp. EMB-1 and Rhodococ-cus sp. EMB-2 Isolated from Reed Rhizosphere of Sunchon Bay (순천만 갈대의 근권으로부터 분리한 BTEX 분해세균 Microbacterium sp. EMB-1과 Rhodococcus sp. EMB-2의 생리학적 특성 분석)

  • Kang Sung-Mi;Oh Kye-Heon;Kahng Hyung-Yeel
    • Microbiology and Biotechnology Letters
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    • v.33 no.3
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    • pp.169-177
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    • 2005
  • This study focuses on investigating roles of microorganisms in decontamination of reed rhizosphere in Sunchon Bay, Korea, which is considered one of the marsh and mud environment severely affected by human activities such as agriculture and fisheries. In general, the bay is known to play the role of the buffering zone to reduce the sudden impact or change by environmental stresses. In our initial efforts to elucidate the microbial functions in decontamination process in reed rhizosphere, pure bacteria capable of degrading aromatic hydrocarbons were isolated from reed (Phragmites communis) rhizosphere of Sunchon bay by enrichment culture using either benzene, toluene, ethylbenzene, or xylene (BTEX) as a sole source of carbon and energy. Measurement of the rates of BTEX degradation and cell growth during the incubation in BTEX media under several temperature conditions demonstrated maximized degradation of BTEX at $37^{\circ}C$ in both strains. Both strains were also resistant to all the heavy metals and antibiotics tested in this study, as well as they grew well at $42^{\circ}C$. Identification of the isolates based on 16S rRNA gene sequences, and a variety of phenotypic and morphologic properties revealed that the two strains capable of BTEX catabolism were among Microbacterium sp., and Rhodococcus sp. with over $95{\%}$ confidence, designated Microbacterium sp. EMB-1 and Rhodococcus sp. EMB-2, respectively This result suggested that in the rhizosphere of reed, one of major salt marsh plants they might play an important roles in decontamination process of reed rhizosphere contaminated with petroleum such as BTEX.

Spawning Microhabitat of Microphysogobio koreensis (Pisces: Cyprinidae) in the Seomjin River, Korea (섬진강에 서식하는 모래주사 Microphysogobio koreensis의 산란 미소서식 환경)

  • Yoon, Seung-Woon;Kim, Jae-Goo;Kim, Hyun-Tae;Park, Jong-Sung;Kim, Chi-Hong;Lee, Yong-Joo;Park, Jong-Young
    • Korean Journal of Ichthyology
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    • v.25 no.2
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    • pp.135-140
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    • 2013
  • Microphysogobio koreensis, an endemic Korean freshwater fishes belonging to Cyprinidae, is protected as a 2nd grade of endangered fishes by the ministry of the Environment. For this species, the study on the spawning microhabitat including structure of streambed and spawning grounds was carried out. The streambed that this species mainly lives consists of boulders, cobbles, and pebbles, the so-called Bb type, with a depth of 0.3 to 1.0 m and a rapid velocity of $0.5{\pm}0.2$ m/sec. But the main spawning grounds where the spawning is actually occurring, is relatively shallower, $0.4{\pm}0.1$ (0.4~0.6) m depth, and faster, $0.8{\pm}0.1$ (0.6~0.9) m/sec velocity, whereas the region that the fertilized eggs are attached are rather slowest to 0.4m/sec. The spawning starts at a water temperature of $20^{\circ}C$ in earlier May, laying their eggs on the cobbles' or boulders' surface or in between them. In particular, with a wide range of streambed structures, natural spawning grounds' environments may let the fertilized eggs not be swept from rapid current and secure efficient dissolved oxygen. The individuals, however, do not appear at the grounds any more after the spawning season, and it is expected that they may move into deeper water such as Lakes or lower streams.

A Comparative Analysis of Informatization Level for Agricultural Corporations and SMEs (농업법인과 중소기업의 정보화수준 비교 분석)

  • Bock, Gene;Kim, Bae-Bong;Lee, Jae-Keun
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.40 no.5
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    • pp.892-902
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    • 2015
  • Agri-food ICT(Information and Communications Technologies) convergence has been raised as an important issue for agricultural industry competence. In this situation, this study is to enhance agricultural competitiveness and seek to development plan for agricultural corporation by diagnosing informatization level. For this purpose, this study conducted survey on informatization level of 3,019 agricultural corporations and calculated level score. And result is compared with SMEs(Small and Medium Enterprise) informatization survey, including manufacturing and service industries, conducted by Korea Technology & Information Promotion Agency for SMEs in recent agricultural corporations' growing with automation of agricultural production and improving service to customer satisfaction. Evaluation system is established to calculate informatization level score and AHP(Analytic Hierarchy Process) method was used by the experts to investigate weighting of assessment area, assessment indicators, assessment items. As a result, agricultural corporation informatization level score was 40.16 points which is lower than the benefitted organization of agri-food IT convergence modeling(43.44 points). By assessment area, the informatization level of promotional environment area was low and investment and training items were analyzed low especially so need to improve urgently. In the analysis result by organization type, agricultural company corporation's informatization level was higher than the agricultural association corporation and 'Processing and distribution' was higher than others by business type. Informatization level of agricultural corporation is 80 percent of 2013 SMEs' level(50.18 points) and 59.4 percent of a large corporation(67.64 points). In particular, big difference is occurred in investment feasibility analysis, informatization investment and education which will be need to improve.

A Study on Sickness and Utilization of Medical Care in a Rural Area of Kyunggido (일부(一部) 농어촌주민(農漁村住民)의 상병(傷病) 및 의료이용도(醫療利用度)에 관(關)한 조사연구(調査硏究))

  • Chang, Yong-Tae
    • Journal of Preventive Medicine and Public Health
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    • v.9 no.1
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    • pp.139-146
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    • 1976
  • This survey attempted to determine the overall health situation in Kyunggido in terms of sickness prevalence, sickness distribution, demand for medical care by type, and utilization of medical care. The survey was conducted on 766 households, or 4,065 people, from July 1-31, 1975. The findings from the survey are as follows: 1) In terms of age distribution, 28.7% of the sample was from 10-19, the 40-49 age group was the next largest group, and those over 60 made up 7% of the sample. 2. The education distribution is as follows, 30.4% completed primary school, 22.4% had no formal education, 20.6% attended but did not onplete primary school, and 1.8% attended unversities or higher. 3) In terms of occupation, 55.9% were unemployed or family employees, which represents a large dependent population, 30.4% of the workers were employed in farming or fisheries. 4. The marital status is as follows, 58.8% of the women were married, 32.3% unmarried, and 7.5% divorced. 5) The prevalence rate of mouthy illness was 19.7% of 100 infant, 42.8% became fatally ill within the first year of life. This is a very high percentage compared with more developed nations. 6) Of those reportion on illness, 54.6% sought treatment. The rate of treatment was highest in infants at 77.7%. Us age increased, demand for treatment decreased to 43.1% for those in the aldest age group. The oldest age group also had the highest rate of non treatment at 56.8%. 7) The demand for medical care showed that 65.6% utilized drug stores, 20.2% utilized hospitals and clinics, 5.4% used herbdrug-stores and herb clinices, and 3.9% relied upon folk medicine and withch craft. 8) The utilization of medical facilties by sex is as follows, 65.1% of the men and 66.0% of the women used drug stores, and 19.2% of the men and 20.2% of the women used hospitals and clinics. However, more men (3.5%) were hospitalized than women (1.8%) 9) In terms of out-patient care, the largest age group of males was 10-19 (28.2%), and the largest age group of females was 0-9 (30.8%). There was no sex difference in the use of western pharmacies. Menaged 30-39 and women aged 50-59 were the most frequent users of herb clinics. 10) The rate of receiving treatment at drugstore hospitals went towards declining level in the second case of what While increaing much more at herb clinics and folk medicines in the second case than the first one. 11) After primary utilization of hospitals, 32.7%. of the adults aged 20-59 used drug-stores as a secondary source of care, and 12.8% of children and youth under age 20 continued receiving care at hospitals. 12) After primary utilization of drug-stores, 32.5 % of the adults continued to seek care at drug stores and 1.8% used hospitals. 4.2% of those over age 60 utilized folk medcine and witch craft.

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Review and Suggestions for Applying DNA Sequencing to Zooplankton Researches: from Taxonomic Approaches to Biological Interaction Analysis (동물플랑크톤 연구에 있어 DNA 분석 기법의 활용 방법과 과제: 개체 동정에서 군집 분석, 생물학적 상호작용 분석까지)

  • Oh, Hye-Ji;Chae, Yeon-Ji;Choi, Yerim;Ku, Doyeong;Heo, Yu-Ji;Kwak, Ihn-Sil;Jo, Hyunbin;Park, Young-Seuk;Chang, Kwang-Hyeon;Kim, Hyun-Woo
    • Korean Journal of Ecology and Environment
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    • v.54 no.3
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    • pp.156-169
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    • 2021
  • Traditional morphological identification difficulties, such as phenotypic plasticity, misidentification of cryptic species, and larval stage species, can be compensated for by using DNA analysis techniques, such as DNA barcoding, in surveying zooplankton populations, including species identification. Recently, the rapid development of DNA sequencing techniques has allowed DNA-based community analysis not only for zooplankton assemblages in various aquatic ecosystems but also for the gut contents of zooplankton that are limited by conventional methods such as visual and microscopic identification. Therefore, the application of DNA sequencing can help understand biological interactions through the analysis of zooplankton food sources. The present paper introduces the major DNA-based approaches in zooplankton research topics, including taxonomic approaches by DNA barcoding, community-level approaches by metabarcoding, and gut content analyses, summarizes the analysis methods, and finally suggests the methodological topics that need to be considered for future applications.

Maritime Security Training: Evaluation of the Impact on Seafarers' Security Awareness and Security Performance (선박보안교육: 선원의 보안인식과 보안성과에 미치는 영향 평가)

  • D'agostini, Enrico;Jo, Sohyun
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.25 no.2
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    • pp.201-211
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    • 2019
  • Safety and security measures in the shipping industry play a pivotal role in ensuring efficient and reliable cargo and passengers operations at each stage of the supply chain. The ISPS Code was adopted into SOLAS convention to protect seafarers and vessels from security threats. Furthermore, according to the Manila amendments to STCW Convention in 2010, personnel employed on board are required to participate in security training. Effective seafarers' education and training programs are of major importance to guarantee satisfactory performance levels onboard to minimize security-related risks. The study's contribution focuses on empirically evaluating the relationship between personal level of awareness and security performance when seafarers undertake security training courses. Findings of this study suggest that (1) seafarers who undertake maritime security training have a higher awareness of ship security, (2) security training and security awareness have a positive influence on security performance, and (3) security awareness mediates the impact of security training and security performance. In conclusion, education and training programs are key tools in enhancing seafarers' security awareness and security performance which, from an industry viewpoint, can translate into major economic, operational and reputational benefits.