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項次 書目
1
題名:BASIC CONCEPT OF FISH STOCK MANAGEMENT    
著者:Chien-Hsiung Wang
出版地區:台灣
出版城市:台北市
學科:地球科學
刊名:ACTA Oceanographica Taiwanica
卷期:19期(1988.1)
頁碼:1-8
語言:英語
摘要: 英文摘要PDF

Fish stock management is a kind of technology, which is advanced by applications to the actual fisheries and accumulation of experiences. Theoretical progress in the fish population dynamics can help the management but only through the development of the management technology. Fish stock management must be a feedback system because it is a procedure to approach the target which itself may be a variable subject. As a necessary consequence of this requirement, the management should be a dynamic pocedure. As a principle fish stock-fishery system is always in non-stationary conditions and the concept of MSY is often not sufficient to provide guidance to the management. An idea of optimization strategy may be useful. Fish stock management should contribute to the scietific researches of the stocks and its production. The management can provide useful information on the dynamics of fish stocks. In order to improve our knowledge on the biological production in the sea and to improve procedures of management, both basic studies on the biological production and practical studies through the management should be formulated under the unified framework. A simple management procedure has been proposed (Tanaka 1980) and simulation studies have proved that this procedure is usefully particular for fish stocks which are rather independent from environmental fluctuations. In this procedure catch limit Yi is adjusted in accordance with present stock level Pi relative to the target level PU and the changing rate of Pi. The formula for adjustment is △Yi/Yi=h(Pi/PU-1)+g(Pi-ℓ/Pi-ℓ) Here h and g are controlling parameters, ℓ is a time lag and indicates the difference. Only necessary information to run this procedure is relative value of Pi, which may be obtained as CPUE. On the basis of the data for the Antarctic minkle whales, Monte Carlo simulation has been conducted. With appropriate values of g and h the managemet system is a very stable even when estimation error of Pi is considerably large. A revising procedure of Pu is incorporated into this system and it is shown that Pu almost reaches to MSY after 50 years even starting from an arbitrary value of Pu.




本卷期目次
ACTA Oceanographica Taiwanica 19期 (1988.1)
BASIC CONCEPT OF FISH STOCK MANAGEMENT/ Chien-Hsiung Wang
REPORT ON MARINE RESOURCES IN THE WATERS AROUND SOLOMON ISLANDS/ Hsi-Chiang Liu
ASSESSMENT ON THE GOLDEN THREAD RESOURCES IN THE WATERS OFF NORTHWESTERN AUSTRALIA/ Chin-Lau Kuo
THE STUDY OF FISHERY BIOLOGY ON PORGIES, LETHRINUS NEBULOSUS (FORSSKAL), IN WATERS OF AUSTRALIA/ Wann-Nian Tzeng
AVAILABILITY AND POPULATION STRUCTURE OF SPOTTED MACKEREL, SCOMBER AUSTRALASICUS, IN THE ADJACENT WATERS OF TAIWAN
SOME ECOLOGICAL CONSIDERATIONS FOR STOCK ENHANCEMENT OF COMMERCIALLY IMPORTANT PRAWNS ALONG THE COASTAL WATERS OF SOUTHWEST TAIWAN/ Mao-Sun Su
COMPUTER SIMULATION AND FISHERIES STOCK ASSESSMENT/ Masaaki Arai
ASSESSMENT ON THE RED SNAPPER (LUTJANUS MALABARICUS) RESOURCE IN THE WATERS OFF NORTHWESTERN AUSTRALIA
THE RECENT TRENDS OF THE MANAGEMENT OF THE FISHERY RESOURCES IN THE COASTAL WATERS OF JAPAN/ Eiji Tanaka
SIMULATION SYSTEM FOR THE COASTAL FISHERIES STOCK MANAGEMENT/ Kun-Hsiung Chang
THE SEA FARMING PROJECTS IN TAIWAN/ Yew-Hu Chien
THE PROBLEMS IN BROWN SHRIMP GROWTH EQUATION AND THEIR REMEDIES/ Yoshiharu Matsumiya
THEORETICAL CONSIDERATION ON ESTIMATING RESTOCKING EFFECTIVENESS OF SEA-FARMING TECHNOLOGY/ Syuiti Kitada
EVALUATION OF THE RESTOCKING EFFECTIVENESS OF SEA-FARMING THROUGH THE RATIO OF MARKED FISH IN THE SAMPLED COMMERCIAL CATCH/ Chien-Chung Hsu
REVIEW OF LARVAL DRIFT AND YEAR-CLASS STRENGTH FOR THE RED KING CRAB POPULATION/ Chung-Zen Shyu
ESTIMATION OF NATURAL MORTALITY AND CATCHABILITY BY THE METHOD OF LEAST SQUARES/ Kunio Shirakihara
MANAGERIAL GUIDELINES FOR SQUID GILLNETTER OPERATING IN THE NORTH PACIFIC OCEAN BASED ON THE FACTS OBSERVED FROM THE SINO-USA SQUID GILLNETTING SURVEY CRUISE 1986 AND 1987 BY USING R/V HAI-KUNG/ Takeyuki Doi
 
   
 
   

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