Ocean and Polar Research最新文献_第6页

Estimating the Economic Value of the East Sea Beach Using Individual Travel Cost Method 用个人旅游成本法估算东海海滩的经济价值

Ocean and Polar Research Pub Date : 2017-03-30 DOI: 10.4217/OPR.2017.39.1.051

Heedong Pyo

引用次数: 2

Optimal Monitoring Frequency Estimation Using Confidence Intervals for the Temporal Model of a Zooplankton Species Number Based on Operational Taxonomic Units at the Tongyoung Marine Science Station 汤加海洋科学站基于操作分类单元的浮游动物种群数量时间模型的置信区间最优监测频率估计

Ocean and Polar Research Pub Date : 2017-03-30 DOI: 10.4217/OPR.2017.39.1.013

Hong-Yeon Cho, Sung Kim, Youn-Ho Lee, Gila Jung, Choong-gon Kim, D. Jeong, Yu-Cheol Lee, Mee-Hye Kang, Hana Kim, Hae-young Choi, Jina Oh, Jung-Goo Myong, Hee-Jung Choi

{"title":"Optimal Monitoring Frequency Estimation Using Confidence Intervals for the Temporal Model of a Zooplankton Species Number Based on Operational Taxonomic Units at the Tongyoung Marine Science Station","authors":"Hong-Yeon Cho, Sung Kim, Youn-Ho Lee, Gila Jung, Choong-gon Kim, D. Jeong, Yu-Cheol Lee, Mee-Hye Kang, Hana Kim, Hae-young Choi, Jina Oh, Jung-Goo Myong, Hee-Jung Choi","doi":"10.4217/OPR.2017.39.1.013","DOIUrl":"https://doi.org/10.4217/OPR.2017.39.1.013","url":null,"abstract":"Temporal changes in the number of zooplankton species are important information for understanding basic characteristics and species diversity in marine ecosystems. The aim of the present study was to estimate the optimal monitoring frequency (OMF) to guarantee and predict the minimum number of species occurrences for studies concerning marine ecosystems. The OMF is estimated using the temporal number of zooplankton species through bi-weekly monitoring of zooplankton species data according to operational taxonomic units in the Tongyoung coastal sea. The optimal model comprises two terms, a constant (optimal mean) and a cosine function with a one-year period. The confidence interval (CI) range of the model with monitoring frequency was estimated using a bootstrap method. The CI range was used as a reference to estimate the optimal monitoring frequency. In general, the minimum monitoring frequency (numbers per year) directly depends on the target (acceptable) estimation error. When the acceptable error (range of the CI) increases, the monitoring frequency decreases because the large acceptable error signals a rough estimation. If the acceptable error (unit: number value) of the number of the zooplankton species is set to 3, the minimum monitoring frequency (times per year) is 24. The residual distribution of the model followed a normal distribution. This model can be applied for the estimation of the minimal monitoring frequency that satisfies the target error bounds, as this model provides an estimation of the error of the zooplankton species numbers with monitoring frequencies.","PeriodicalId":35665,"journal":{"name":"Ocean and Polar Research","volume":"39 1","pages":"13-21"},"PeriodicalIF":0.0,"publicationDate":"2017-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49147922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ANESTHETIC AND PHYSIOLOGICAL EFFECT OF CLOVE OIL AND LIDOCAINE-HCL ON THE GRASS PUFFER, Takifugu niphobles CLOVE OIL和LIDOCAINE-HCL对禾本科、Takifugu niphobles的麻醉和生理作用

Ocean and Polar Research Pub Date : 2017-03-30 DOI: 10.4217/OPR.2017.39.1.001

T. Lee, H. Gil, I. Park

{"title":"ANESTHETIC AND PHYSIOLOGICAL EFFECT OF CLOVE OIL AND LIDOCAINE-HCL ON THE GRASS PUFFER, Takifugu niphobles","authors":"T. Lee, H. Gil, I. Park","doi":"10.4217/OPR.2017.39.1.001","DOIUrl":"https://doi.org/10.4217/OPR.2017.39.1.001","url":null,"abstract":"The aim of this study was to determine the physiological response and the applicable concentration ranges of anesthetic clove oil and anesthetic lidocaine-HCl, and to investigate the synergistic effect of a mixture of these two anesthetics on the in grass puffer (Takifugu niphobles). The anesthesia times decreased and the recovery times increased with increasing concentrations of clove oil and lidocaine-HCl. Applicable concentration ranges for long-term transportation requiring more than 1 hour were 2 ppm for clove oil and 50 ppm for lidocaine-HCl. With mixtures of the two anesthetics, the anesthesia time decreased as the admixture concentration of clove oil and lidocaine-HCl increased. Anesthesia times of experimental groups with the combined anesthetics were shorter than those with the same concentrations of clove oil or lidocaine-HCl alone. Plasma cortisol concentrations were highest at 6 hours in all experimental groups anesthetized with the mixture of clove oil and lidocaine-HCl, while all groups with clove oil or lidocaine-HCl alone had the highest plasma cortisol concentrations at 12 hours. Plasma glucose concentrations were highest at 12 hours in experimental groups anesthetized with the mixture of clove oil and lidocaine-HCl, while groups with clove oil or lidocaine-HCl alone had the highest plasma glucose at 24 hours. The results of this study provide basic information about anesthetics and the synergistic effect of mixtures of anesthetics in this fish species. This information should be useful for aquaculturists who require methods for safe and easy fish handling, and for transporters who require that minimal stress is imposed on fish during transport.","PeriodicalId":35665,"journal":{"name":"Ocean and Polar Research","volume":"39 1","pages":"372-372"},"PeriodicalIF":0.0,"publicationDate":"2017-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41559639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Correction of Aquarius Sea Surface Salinity in the East Sea 东海宝瓶座海面盐度的校正

Ocean and Polar Research Pub Date : 2016-12-30 DOI: 10.4217/OPR.2016.38.4.259

Dong-Kyu Lee

{"title":"Correction of Aquarius Sea Surface Salinity in the East Sea","authors":"Dong-Kyu Lee","doi":"10.4217/OPR.2016.38.4.259","DOIUrl":"https://doi.org/10.4217/OPR.2016.38.4.259","url":null,"abstract":"Sea Surface Salinity (SSS) observations from the Aquarius satellite in the East Sea show large systematic biases mainly caused by the surrounding lands and Radio Frequency Interferences (RFI) along the descending orbits on which the satellite travels from the Asian continent to the East Sea. To develop a technique for correcting the systematic biases unique to the East Sea, the least square regression between in situ observations of salinity and the reanalyzed salinities by HYCOM is first performed. Then monthly mean reanalyzed salinities fitted to the in situ salinities are compared with monthly mean Aquarius salinities to calculate mean biases in 1o × 1o boxes. Mean biases in winter (December−March) are found to be considerably larger than those in other seasons possibly caused by the inadequate correction of surface roughness in the sea surrounded by the land, and thus the mean bias corrections are performed using two bias tables. Large negative biases are found in the area near the coast of Japan and in the areas with islands. In the northern East Sea, data sets using the ascending orbit only (SCIA) are chosen for correction because of large RFI errors on the descending orbit (SCID). Resulting mean biases between the reanalysis salinities fitted to in situ observations and the bias corrected Aquarius salinities are less than 0.2 psu in all areas. The corrected mean salinity distributions in March and September demonstrate marked improvements when compared with mean salinities from the World Ocean Atlas (WOA [2005−2012]). In September, salinity distributions based on the corrected Aquarius and on the WOA (2005−2012) show similar distributions of Changjiang Diluted Water (CDW) in the East Sea.","PeriodicalId":35665,"journal":{"name":"Ocean and Polar Research","volume":"38 1","pages":"259-270"},"PeriodicalIF":0.0,"publicationDate":"2016-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70346420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of Temperature and Salinity Fields of HYCOM Reanalysis Data in the East Sea 东海HYCOM再分析资料的温、盐场评价

Ocean and Polar Research Pub Date : 2016-12-30 DOI: 10.4217/OPR.2016.38.4.271

홍진실, 서성봉, 전찬형, 박재훈, 박영규, 민홍식

引用次数: 4

Isotopic Hydrograph Separation Using Artificial Rain-on-snow Experiments and Its Implications by Each Tracer 人工雨雪实验的同位素水线分离及其各示踪剂的意义

Ocean and Polar Research Pub Date : 2016-12-30 DOI: 10.4217/OPR.2016.38.4.331

Jeonghoon Lee

{"title":"Isotopic Hydrograph Separation Using Artificial Rain-on-snow Experiments and Its Implications by Each Tracer","authors":"Jeonghoon Lee","doi":"10.4217/OPR.2016.38.4.331","DOIUrl":"https://doi.org/10.4217/OPR.2016.38.4.331","url":null,"abstract":"Many studies using tracers have been conducted to understand a physical process in a system. Rain-on-snow could accelerate snowmelt processes, which influences the hydrological process in both temperate and polar regions. Hydrological and ecological conditions will be affected by the amount and timing of discharge reaching the bottom of a snowpack. The discharge consists of the rain-on-snow, pore water penetrating into the snowpack and natural meltwater. In this study, after a rain-on-snow experiment, we conducted an isotopic hydrograph separation to distinguish rainwater and pore water from meltwater. Using the isotopic data of snow and meltwater from Lee et al. (2010), two components were separated based on the assumption that rainwater and pore water are new water and natural meltwater is old water. After the second rain-on-snow experiment, the maximum contributions of rainwater and pore water reached up to 69% of the discharge and then decreased. During the study period, the measured total discharge was 4153 L and 40% (based on hydrogen isotope) of rainwater and pore water was calculated in the discharge, which is not consistent with what Lee et al. (2016) calculated using chemical separation (63%). This inconsistency can be explained by how an end-member was defined in both approaches. The contributions of artificial rainonsnow and pore water to melwater discharge range between the two methods. This study will suggest a mixing calculation from isotopic compositions of the Southern Ocean.","PeriodicalId":35665,"journal":{"name":"Ocean and Polar Research","volume":"38 1","pages":"331-338"},"PeriodicalIF":0.0,"publicationDate":"2016-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70346650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effects of Enhanced pCO2and Temperature on Reproduction and Survival of the Copepod Calanus sinicus 提高co2浓度和温度对黄鳝繁殖和存活的影响

Ocean and Polar Research Pub Date : 2016-12-30 DOI: 10.4217/OPR.2016.38.4.303

Hyung-Ku Kang, Chang-Rae Lee, Dongseon Kim, S. Yoo

引用次数: 2

Re-description of Chrysaora pacifica (Goette, 1886) (Cnidaria, Scyphozoa) from Korean Coastal Waters: Morphology and Molecular Comparisons 重新描述来自朝鲜沿海水域的太平洋金蛹(Goette, 1886)(刺胞目，孢子虫目):形态和分子比较

Ocean and Polar Research Pub Date : 2016-12-30 DOI: 10.4217/OPR.2016.38.4.295

H. Lee, W. Yoon, J. Chae, Jang‐Seu Ki

引用次数: 5

Analysis of Radio Environments Allocated to HF Ocean Surface Radar in Korea 韩国高频海面雷达无线电配置环境分析

Ocean and Polar Research Pub Date : 2016-12-30 DOI: 10.4217/OPR.2016.38.4.325

Kyu‑Min Song