• Animal Systematics, Evolution and Diversity
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• v.27 no.3
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• pp.239-245
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• 2011

We describe and illustrate two pontoniine shrimps, Cuapetes grandis and Periclimenes ornatus, for the first time in Korea. C. grandis was collected in an artifical reef of Dadae, Geojedo Island by SCUBA diving in 15-20 m depth. This species was found in an oyster within an artificial reef and appeared to be free-living. P. ornatus was collected from Seongsanpo, Jejudo Island by SCUBA diving in 10 m depth. This species had a symbiotic relationship with sea anemone. This record extends their previously known range from southern Japan to the Korean peninsula and the number of known pontoniine species in Korea to four.

• Proceedings of the Korean Society of Computer Information Conference
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• 2023.01a
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• pp.181-182
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• 2023

본 연구는 보건계열 대학생들을 대상으로 스쿠버다이빙의 응급상황대처능력과 안전지식에 대한 수준을 분석하고자 하는 서술적 조사연구이다. 본 연구의 총 대상자 수는 109명을 대상으로 분석하였으며, 자료수집기간은 2021년 6월 30일부터 8월 15일까지 시행하였다. 연구결과는 남학생의 안전지식수준이 유의하게 높았고, 스쿠버다이빙에 대한 위험한 상상을 경험한 학생들이 응급상황대처능력이 유의하게 높았다. 또한 스쿠버다이빙이 안전한 스포츠라고 생각하는 학생이 스쿠버다이빙의 안전지식이 유의하게 높았으며, 스쿠버다이빙의 안전수칙 지식을 잘 알고 있다고 대답한 학생들이 스쿠버다이빙의 안전지식 및 응급상황대처능력이 유의하게 높은 것으로 분석되었다. 따라서 응급상황대처능력을 향상시키기 위해서는 안전지식을 강화시키고 안전수칙을 철저히 지킬 수 있는 교육이 필요할 것이다.

• Korean Journal of Ichthyology
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• v.17 no.1
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• pp.84-87
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• 2005

The fish fauna was investigated in the coastal waters of Ulleungdo by SCUBA diving from 27 to 28 July 2004. We observed a total of 45 species from 22 families, including 6 species in Scorpaenidae and 5 species in Labridae. A total of 33 species were recorded at Station 1, and 15 species were recorded at Station 3. As a result of this study, we newly added 23 species to fish list in the coastal waters of Ulleungdo.

• Journal of the Korean Society of Clothing and Textiles
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• v.39 no.3
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• pp.408-418
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• 2015

This study investigates the purchasing and wearing conditions of wetsuits, and analyzes consumer awareness on wetsuit functional factors between domestic and imported brands. This research provides basic information on presenting competitiveness and developing suitable wetsuits for the Korean body shape through an investigation of a size system. An in-depth interview was conducted to consider consumer awareness with 10 persons of different levels of scuba diving experience. The survey variables consist of classified suggestion of inquires for functional factors and size systems. We distributed 80 questionnaires to scuba diving club members; subsequently, a total of 66 usable data sets were coded for statistical analysis through SPSS WIN 18.0. The result shows that respondents preferred imported ready-to-wear brands, whereas national ready-to-wear brands were purchased less often. However, the difference in customer awareness of functional factors between domestic and imported brands was not significant. In evaluating the size system of six brands (including three domestic and three imported brands), wetsuits of domestic brands were better fitted to the Korean body shape than imported brands; however, competitiveness has been hindered by public perception that domestic brands imitate imported brands. The results suggest that domestic brands can strengthen their competitiveness through promoting a lower price and size suited to Koreans while trying to change public perception as imitators of imported brands.

• Animal Systematics, Evolution and Diversity
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• v.24 no.2
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• pp.179-183
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• 2008

Some hydroid specimens were collected by SCUBA diving from 10-25 m deep at Uljin (Nagok) and Jejudo Island (Munseom, Beomseom, Supseom). Among the identified species, three species Eudendrium racemosum (Gmelin, 1791), Sertularella diaphana(Allman, 1886) and Schizotricha divergens Naumov, 1960 are new to the Korean fauna.

• Journal of Fisheries and Marine Sciences Education
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• v.29 no.2
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• pp.526-536
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• 2017

This study intended to understand similarity of image between games and position of image attribute perceived by consumers according to the games of marine sports using MDS (Multidimensional Scaling). Through the foregoing, this study aims to provide preliminary data for establishing marketing strategies for games of marine sports by accurately understanding images of marines sports perceived by consumers. For survey targets, this study selected students of K University located in Gyeonggi-do as a population, and extracted samples using convenience sampling out of non-probability sampling methods targeting 200 students who showed intention of participation in this study, and total 188 sheets of questionnaire were used as final data excepting 12 sheets that are filled up unfaithfully or considered unreliable. For data processing, this study conducted Frequency Analysis, Descriptive Statistical Analysis, Reliability Analysis, MDS (Multidimensional Scaling) and Multiple Regression Analysis, and study results show that water ski and wakeboard(.602) have the most similar image attribute, indicating that image attributes of scuba diving and water ski(2.031) are positioned farthest with each other. As for image attribute, image attribute of water ski has appearance and progressiveness, windsurfing has an image attribute of positive, scuba diving has an image attribute of negation, and marin rafting has an image attribute of friendliness.

• Journal of the Korean Society of Safety
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• v.26 no.2
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• pp.42-47
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• 2011

Going underwater is supposed to begin with the history of human beings. At first it was confined to relatively shallow level, less than several meters by holding breath. Recently, deep level diving has been necessary for such purpose as construction, maritime salvage, military operations, research and sports by using SCUBA(self-contained underwater breathing apparatus) equipment. As one goes down into water, the pressure on the diver is increased due to water pressure with depth, usually 1 atm for each 10 m water level. In deep water, mixed gas or nitrox(EAN, enriched air nitrox) could be applied for the divers lest they should get disease due to high pressure. Of these, the former is usually composed of oxygen and inert gas like helium or hydrogen, the latter contains higher oxygen content than that in normal air in which the oxygen concentration is designated by the character "EAN" followed by vol. % of oxygen, for example, "EAN 40" contains 40% of oxygen. In this case, a victim was found at the 39 m below the sea surface breathing air and nitrox in cylinder wrongly marked as EAN 36, which was analyzed to contain 63% of oxygen by GC/TCD. The cause of death could not be exactly related with the oxygen content in the nitrox cylinder, because the accurate depth for the victim to dive was not known, even though the victim was just found at the depth of 39 m. However, the wrongly marked nitrox could be believed to be the main cause of the death at the depth unless there happened any other accident except that during diving.

• Animal Systematics, Evolution and Diversity
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• v.20 no.2
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• pp.161-170
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• 2004

A taxonomic study on the marine sponges was conducted with material collected by SCUBA diving from Ulleungdo Island, Korea during July 2001 to August 2003. They were identified 19 species belonging to 14 genera in 12 families of six orders in two classes identified. Among them, Haliclona (Reniera) permollisimilis Hoshino, 1981 is newly recorded to the Korean fauna and Geodia ulleungensis n. sp. is new to science.

• Animal Systematics, Evolution and Diversity
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• v.21 no.1
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• pp.123-127
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• 2005

A new species of the genus Tethya (Demospongiae: Hadromerida: Tethyidae), Tethya songakensis, is collected from Jeju Island, Korea, by scuba diving. This new species is characterized by oxyasters, slender tylasters and spherasters with frequently branched ray. Tethya songakensis n. sp. is similar to T. simi Sara and Bavestrello, 2000 in megascleres and megasters, but it can be clearly distinguished with the latter by the shape of microasters.

• Journal of the Korean Society of Marine Environment & Safety
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• v.5 no.1
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• pp.29-36
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• 1999

A field experiment of the leeway of person-in-water(man with wetsuit) was conducted during October 1997∼ April 1998. The experiment area was northeast side of Cho Do island in Pusan. The college students whose weight ranges 60∼87 kg, height 170∼178 cm were actually drifted for the experiment. The person-in-water wore 5 mm neoprene diving wetsuit to prevent heat loss of the body. The current near the target was measured using a colored vinyl bag. To compare the result a scuba diver equipped with scuba gear and with his BC(buoyancy compensator) fully inflated was drifted alongside. The average leeway speed of man with wetsuit and that of scuba diver were about 0.4 percent and 1.3% of the 10 m wind speed above the water respectively.