Beaches In Korea Research Articles

Differential responses of a benthic meiofaunal community to an artificial oil spill in the intertidal zone

This study aimed to determine the potential impact of an oil spill on intertidal meiofauna at a clean, sandy beach in Korea. This objective was accomplished by examining changes in the structure of meiofaunal assemblages after a controlled oil spill of different concentrations on the beach. The concentration of total petroleum hydrocabon (TPH) in the experimental plots after oil application was expectedly higher for the first 4 d compared to before oil application. The TPH concentrations decreased at a faster rate in the first 4 d, and then progressively. The sharp decline in meiofaunal density in the experimental plots during the first 4 d after the spill might be attributed to the short-term toxic effects of the oil. This suggestion is supported by a significant negative interaction of the TPH on meiofaunal density during the study period. The period of low density of meiofauna also coincided with the maximum concentration of TPH in the sediment. The multivariate indices proved to be highly efficient, showing that samples contaminated with oil had high TPH concentrations, and were partially separated in terms of meiofaunal communities from samples before oil application or samples with low TPH concentrations. The structure of the meiofaunal communities in the experimental plots was similar before and 1 month after oil application. However, the density of meiofauna sharply decreased immediately after oil application in the experiment plots. Furthermore, the meiofaunal density recovered slowly as time passed.

사용자 욕구조사를 통한 해양레저용품(Bodyboard)디자인 컨셉개발

인간의 특징을 설명하는 단어 중 하나가 "유희적 인간"이다. 또한 최근 생활수준이 높아지고 삶이 더욱 윤택해짐에 따라 놀이는 인간 삶의 중심 가치로 부상하고 있다. 최근 해양레저산업의 규모가 확대됨에 따라 해양용품 개발의 필요성이 대두되고 있으며, 해양레저장비를 수입에 의존해 오던 국내 시장에서 국산 해양 레저 용품의 개발이 필요성을 더욱 커지고 있다. 본 연구는 바디보드(bodyboard)의 신제품 개발에 있어서 제품분석 및 소비자 욕구 조사를 통한 국내 시장에 적합한 새로운 바디보드의 디자인 컨셉 제안을 목표로 한다. 연구 결과는 다음과 같다. 첫째, 한국시장의 바디보드는 14세에서 29세 사이의 젊은 층을 위한 40,000원~100,000원 대의 가격 포지셔닝이 바람직하다. 둘째, 작은 파도 위주의 국내 해안환경에도 튜브형 바디보드가 적합하다. 튜브형 바디보드의 선호고객이 65%이상으로 조사되었다. 셋째, 새로운 가치 창출형 바디보드 개발을 위하여 본 연구에서는 새로운 CMFF(Color, Material, Form, Function)전략이 개발되었다. 본 연구결과는 객관적이고 과학적인 소비자 조사가 이루어지지 않았던 바디보드개발의 연구 분야에 있어서 새로운 제품 디자인개발 방법을 제시했다는 점에서 의미를 가진다. One of the words that describe unique features of human beings is "Homo Ludens (Playing Man)". As humans enjoy abundant and prosperous lives and the quality of life is further improved, play is increasingly becoming a central value of human life. As part of play, ocean leisure is getting popular these days, and in turn demands for ocean leisure-related products in Korea, most of which are dependent on foreign markets, are growing. Therefore, it is required that local companies are quick to turn their eyes on the fast developing market. This research aims to help develop a design concept for bodyboard, more suitable for the domestic market, by analyzing products and reflecting customers' needs. The findings of this study are as follows: first, it is desirable that the target of bodyboard in domestic market is young people aged between 14 and 29 and its price ranges from 40,000 to 100,000 won; second, a tube-type bodyboard is appropriate for beaches in Korea mostly with small and gentle waves, as also shown in a survey that over 65% of those surveyed prefer a tube-type bodyboard, and lastly, the CMFF (Color, Material, Form, and Function) strategy was newly developed in this study in order to create new concept bodyboards.

Mitigation Measures for Beach Erosion and Rip Current

ABSTRACT Kim, K.-H., Shin, S., Widayati, A.Y.W., 2013. Mitigation Measures for Beach Erosion and Rip Current In: Conley, D.C., Masselink, G., Russell, P.E. and O'Hare, T.J. (eds.) Korea has achieved both economical and socio-cultural developments in recent years, and in the midst of these changes, the issue of beach erosion has been recognized as one of the most important and controversial coastal problems in the country. Hence coastal protection is required which they have to be designed, constructed and maintained efficiently (Pilarczyk and Zeidler, 1996). This case study on beach erosion was conducted at Haeundae Beach in Busan, located in the south coast of Korea. Haeundae Beach is regarded as the most popular and beautiful urban beach in Korea. One of the main purposes of this study is to take comprehensive countermeasures to mitigate the beach erosion problem at Haeundae Beach. The historical investigations, field observations, laboratory experiments, and numerical simulations were conducted to unde...

Mitigation of Beach Erosion after Coastal Road Construction

Beach erosion problems have become prevalent in Korea as a result of its economic growth and coastal development. This paper summarizes a comprehensive approach used to mitigate beach erosion that occurred after the construction of a coastal road with a seawall along Namae Beach in Korea. Field measurements of waves and currents were performed to identify the wave-induced current pattern associated with the observed shoreline erosion in front of the seawall. The construction of a short jetty and two submerged reef mounds was proposed to reduce the wave-induced current and resulting beach erosion. After the jetty construction from May to August, 2008, the shoreline advanced offshore continuously in the zone affected by the jetty. Field monitoring will be continued during the reef mound construction and for beach nourishment proposed to maintain a wide beach in front of the seawall. This mitigation project indicates that the effect of a coastal road on an adjacent beach should be taken into account before its siting because of the long-term evolution of the beach morphology.

First record of the genus Cyclopinoides (Copepoda, Cyclopoida, Cyclopinidae) from the Pacific

A new species belonging to the genus Cyclopinoides Lindberg, 1953 (Cyclopinidae) is described from three beaches in Korea and Japan, as the first record of the genus from the Pacific. Among five species currently recognized in the genus, the new species resembles C. schulzi Herbst, 1964 from the Red Sea in sharing the character combination of 20-segmented antennule and stumpy caudal rami. However, C. orientalis n. sp. differs from it by relatively longer caudal rami (2.5–2.8 times as long as wide in female and about 1.6–1.8 times in male, while less than 2 times in female and about 1.3 times in male of C. schulzi), and by the transformation of an outer distal spine to a slender seta on the distal exopodal segment of leg 4. Moreover, C. orientalis n. sp. is discernible from C. schulzi in having a pyriform copulatory tube (against elongated tubular style in C. schulzi). A key to the species hitherto known in the genus is provided.

Shallow-water phoxocephalid Amphipoda (Crustacea) of Korea

Five new species of phoxocephalid amphipods from sandy beaches in Korea belonging to two genera are described and figured: Mandibulophoxus mai n. sp., M. hongae n. sp., Grandifoxus malipoensis n. sp., G. cuspis n. sp., and G. bangpoensis n. sp. Keys to the known species and diagnoses of the genera are provided. The male characters of the genus Mandibulophoxus are given for the first time, but no male specimens of Grandifoxus were obtained during the present study.