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      • 기후변화에 대비한 환경연구의 방향

        김수암,Kim, Su-Am 한국환경정책평가연구원 2002 환경정책연구 Vol.1 No.1

        Due to the recent increase in greenhouse gases in atmosphere, world climate is rapidly changing and in turn, the earth ecosystem responds upon the climate changes. Comparing the ecosystem in the past, the present shapes of ecosystem is the result of the serious modification. Fishery resources in marine ecosystem, which usually occupy the upper trophic level, are also inevitable from such changes, because they always react to the natural environmental conditions. The northwestern Pacific is the most productive ocean in the world producing about 30% of world catch. From time to time, however, it has been notified that abundance, distribution and species composition of major fish species were altered by climate events. Furthermore, primary productivity of the ocean is not stable under the changing environments, so that carrying capacity of the ocean varies from one climate regime to another. Major climate events such as global warming, atmospheric circulation pattern, climate regime shift in the North Pacific, and El Nino event in the Pacific tropical waters were introduced in relation to fisheries aspects. The current status and future projection of fishery production was investigated, especially in the North Pacific including Korean waters. This new paradigm, ecosystem response to environmental variability, has become the main theme in marine ecology and fishery science, and the GLOBEC-type researches might provide a solution far cause-effect mechanism as well as prediction capability. Ecosystem management principles for multi-species should be adopted for better understanding and management of ecosystem.

      • KCI등재

        한국의 연어생물학 연구 동향과 전망

        김수암,이채성,강수경,Kim, Su-Am,Lee, Chae-Sung,Kang, Su-Kyung 한국해양학회 2007 바다 Vol.12 No.2

        우리나라에서 연어(Oncorhynchus keta) 에 대한 관심은 1980년대 양양내수면연구소가 설치된 이후에 크게 증가하였다. 그 이후 연어방류사업이 점차 확대되어 최근에는 한반도의 18 개 하천에서 연어가 방류되고 있다. 하지만 아직 연어에 대한 충분한 연구 투자가 선행되지 않아, 연어에 대한 생태학적 이해는 부족한 편이다. 특히 지구환경은 지난 수십 년 동안 급격히 바뀌었고, 연어 개체군의 생물학적 특성도 변화하는 환경의 영향을 받아왔다. 연어 분포의 남방한계선에 있는 우리나라의 연어는 기후 및 해양의 변화에 민감하게 반응할 것이므로, 향후의 환경 변화를 주시해야 할 필요가 있다. 본 특별호에서는 북태평양에서 연어가 차지하는 수산생태학적 위치를 개괄하였고, 현재 우리나라에서 수행 중인 연어 연구의 결과를 요약하였다. 본 특별호가 우리나라 연어 연구의 방향을 제시하는 계기가 되기를 바란다. Interest in chum salmon(Oncorhynchus keta) biology I Korea has increased since the establishment of the Yangyang Inland Hatchery of the National Fisheries Research and Development Institute during mid 1980s. The enhancement program of chum salmon was expanded thereafter, so that chum salmon were transplanted 18 streams in the coast of the Korean Peninsula. However, ecological research on salmon species was very limited due to the lack of a research program. Though involvement in the North Pacific Anadromous Fish Commission (NPAFC) requires scientific investigation on salmon research of each member nation, no conspicuous increase in research funding was achieved in Korea. Oceanic environments have been rapidly altered by climate change during the last a few decades and ocean ecosystems including salmon populations will be modified by global warming. Special attention is needed for stocks near the southern boundary of distribution, such as Korean chum salmon. This special issue is the venue for reviewing ongoing researches in Korea, and we hope that this issue will be a big step toward active ecological research in Korea under changing environments.

      • KCI등재

        GLOBEC 프로그램의 목적, 운영체계 및 최근의 동향에 대하여

        김수암,Kim, Su-Am 한국해양학회 2000 바다 Vol.5 No.1

        Goals, research direction, and operational structure of the Global Ocean Ecosystem Dynamics (GLOBEC), which is co-sponsored by the Scientific Committee on Oceanic Research (SCOR) and the Intergovemmental Oceanographic Commission (IOC), are described. Following the Joint Global Ocean Flux Study (JGOFS) activities on the lower trophic level in ecosystem during 1980s-90s, scientists have considered the responses of the mid and higher trophic levels to the environmental or climate change. The scientific steering committee of the GLOBEC published the implementation plan in 1999, and the IGBP will support the GLOBEC as one of its core projects for 10 years. The GLOBEC programme has four major components: the research foci, framework activities, regional programmes, and integrating activity. The core of GLOBEC research is the four research foci: retrospective analyses, process studies, predictive and modelling capabilities, and feedbacks. Currently, four regional programmes have been undergoing in the world ocean: Southern Ocean GLOBEC (SO-GLOBEC), Small Pelagic Fishes and Climate Changes (SPACC), Cod and Climate Change (CCC), and Climate Change and Carrying Capacity (CCCC). Also, national GLOBEC programmes were already established in 9 nations. 기후변동에 따른 해양생태계의 변화를 예측하기 위한 국제 연구 프로그램인 Global Ocean Ecosystem Dynamics (GLOBEC)은 해양의 탄소순환을 집중적으로 연구한 Joint Global Ocean Flux Study(JGOFS)의 후속조치로서, 이 논문에서는 GLOBEC 프로그램의 목적, 방향, 실천계획, 체제를 정리하였다. 해양과학위원회(SCOR)와 정부간해양위원회(IOC)의 후원을 동시에 받고 있는 대형과학프로그램인 GLOBEC은 기후변화에 따른 생태계의 중위 및 상위포식자의 반응에 대한 연구이며, GLOBEC 과학집행위원회는 연구를 수행하기 위한 실천계획을 1999년에 수립하였다. GLOBEC 프로그램은 국제생지권프로그램(IGBP)의 핵심과제로 지정되어 향후 10년 동안 지속될 것이며, 구체적으로 4개의 연구 초점, 체제구축활동, 지역프로그램, 종합화 등으로 구성되어 있다. 가장 중요한 연구활동인 4개의 연구초점은 다음과 같다: 과거자료분석(Retrospective analyses), 과정 연구(Process studies), 예측과 모델링(Predictive and modelling capability), 되먹임(Feedbacks). 현재, 남극해 GLOBEC(SO-GLOBEC), 소형표층어류와 기후변화(SPACC), 대구와 기후변화(CCC), 기후변화와 환경수용력(CCCC)의 4개 국제적 지역프로그램이 있으며, 이들은 모두 우리나라 해양 및 수산연구와 밀접한 관련이 있다. 미국, 일본 등의 9개국은 국가프로그램을 운영하고 있으며, 이 수효는 점차 증가할 전망이다.

      • Estimates of Larval Mortality Based on one cohort Present During Two consecutive Surveys in the Sea

        김수암,KIM, SUAM The Korean Society of Oceanography 1990 韓國海洋學會誌 Vol.25 No.3

        Estimates of larval mortality for many marine fishes are based on field collections from several consecutive ichthyoplankton surveys, assuming that the surveys have covered the entire areas of larval habitats. The oceanic environment, however, is so dynamic and complicated that planktonic forms cannot stay within a confined area for a prolonged period. This note is prepared as a more detailed explanation of the estimates of fish larval mortality in the oceanic dispersing system, as a supplement of Kim and Bang (1990).

      • KCI등재

        전통시장 선진화를 위한 제도개선에 관한 연구 - 공설시장을 중심으로 -

        김수암,황보윤,Kim, Su-Am,HwangBo, Yun 한국벤처창업학회 2010 벤처창업연구 Vol.5 No.4

        With the liberalization of distribution services industry since 1996 as well as changes in customers' appetite to spend and consumer behaviors, new forms of distribution services have mushroomed such as superstores and SSM(Super Supermarket), online shopping, TV shopping channels. On the contrary, traditional markets have sunk into a swamp of stagnation. As this stage of stagnation of markets negatively affects tradespeople's employment, livings, and local economy, the Korean government has conducted policies to support improvement of market facilities and management since 2004. However, the government has separated facility improvement from management improvement. As of June 2008, there are 1,550 traditional markets in Korea and among these there are 388 public markets which local governments have established and managed. Public markets have possibilities to be developed as successful models of market revitalization since they can get all-expenses-paid supports for facility improvement, control of merchandise assortment, educational program for merchants. Such successful (strategic hub) markets could become the benchmark for other neighboring markets and tradespeople which could lead other successful cases. In order to produce such effects, the market should have optimized facilities, merchandise and services, co-marketing strategies with nearby markets, group purchase strategies. The hub market could play a critical role in distribution of local goods and developing high value products.

      • KCI등재

        북태평양 기후변화와 연어 생산력 변동

        김수암,강수경,서현주,김은정,강민호,Kim, Su-Am,Kang, Su-Kyung,Seo, Hyun-Ju,Kim, Eun-Jung,Kang, Min-Ho 한국해양학회 2007 바다 Vol.12 No.2

        북태평양 생태계의 연어(Oncorhynchus keta) 개체군과 기후 변동과의 관계에 대하여 연구하였다. 1950년 이후의 알류산 저기압, 남방진동, 북극진동, 태평양순년진동에 대한 지수들을 상호상관법(CCF)과 누적합(CuSum) 방법을 이용하여 연어어획량과 비교하였다. CCF와 CuSum 분석 결과는 1970년대 중반에 큰 기후변화가 발생하였음을 보여 주고 있으며 연어 개체군은 시간 지연 효과를 보이며 기후변화에 반응하였다. 연어회귀량은 태평양순년진동과 3년, 북극진동과는 $6{\sim}7$년의 시간 간격을 가지며 통계적으로 유의한 상관관계를 보였다. 연어 치어에 유리한 해양환경은 연안역에서 치어의 성장을 향상시켰지만, 초기 발생시기의 높은 성장률이 산란어의 회귀율과 관련이 있는 것 같지는 않았다. 오히려 오호츠크해와 베링해에서의 미성어 시기 성장이 회귀율과 상관관계가 유의하게 나타났으며, 이는 연어 개체군에 '크기연관사망' 과정이 적용된 것이라고 할 수 있다. 향후 우리나라 주변 해양생태계에 대한 기후변동의 영향을 설명하기 위하여 한반도 지역의 기후지수 개발이 시급히 필요하다. The relationship between North Pacific chum salmon (Oncorhynchus keta) population and climate variability was investigated in the North Pacific ecosystem. Time-series for the Aleutian Low Pressure, Southern Oscillation, Arctic Oscillation, and Pacific Decadal Oscillation (PDO) indices dating back to 1950 are compared with the chum salmon catch using a cross-correlation function (CCF) and cumulative sum (CuSum) of anomalies. The results of CCF and CuSum analyses indicated that there was a major change in climate during the mid 1970s, and that the chum salmon population responded to this climate event with a time-lag. The PDO and chum salmon returns showed a highly significant correlation with a time-lag of 3 years, while the AOI with a time-lag of $6{\sim}7$ years. The favorable environments for fry chum salmon might cause better growth in the coastal areas, but higher growth rate during the early stage does not seem to be related to the improved return rate of spawning adults. Rather, growth in the Okhotsk Sea or the Bering Sea during immature stages has a significant correlation with return rate, which implies the size-related mortality process. The development of a local climate index is necessary to elucidate the effect of climate variability on the marine ecosystem around the Korean Peninsula.

      • Descriptive hydrography of shelikof Strait, Gulf of Alaska, during the Spring Spawning Time of Walleye Pollock, Theragra chalcogramma, in the Early 1980's

        김수암,KIM, SUAM The Korean Society of Oceanography 1993 韓國海洋學會誌 Vol.28 No.1

        To delineate water properties and current patterns in the spawning area of walleye pollock, hydrographic cast and current meter data collected in Strait, Gulf of alaska, were analysed, three water masses are identified in Shelikof Strait. A small amount of cold and dilute water ($<{\;}3^{\circ}C{\;}and{\;}<{\;}31.5\textperthousand$) originates from the lower Cook Inlet and flows southwestward close to the Alaska Peninsula coast. One branch of alaska coastal Current which enters the strait from the northeast comprises the main body of the upper and middle layers of the strait, and flows toward the southwest. Estimation of geostrophic baroclinic currents reveals that comparatively fast flow exists in the surface over the deepest portion of the strait, and most water exits through the southwestern entrance between Semidi and chirikof Is. On the other hand, a relatively slow-moving warm and saline ($>{\;}5^{circ}C{\;}and{\;}>{\;}32\textperthousand$) of the southwestern entrance flows northeasterly, and occupies the bottom layer in Shelikof Strait.

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