原名「台灣學術線上」
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1
題名:ASSESSMENT ON THE RED SNAPPER (LUTJANUS ALTIFRONTALIS) RESOURCE IN THE WATERS OFF NORTHWEST AUSTRALIA    
澳洲西北陸棚產短吻笛鯛之資源評估
著者:Dar-Ren Ju(朱達仁) ;Shean-Ya Yeh(葉顯椏)
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:27期(1991.9)
頁碼:86-97
語言:英語
摘要: 中文摘要PDF ; 英文摘要PDF

本報告係以臺灣地區底魚漁業場別漁獲統計年報之澳洲西北陸棚漁場漁獲統計資料(1972年至1988年),應用餘量模式來分析本區產短吻笛鯛資源狀熊;另以1982年至1988年採樣資料,估得自然死亡係數並以Beverton & Holt模式,代入所需所參數,進行Yield per recruit(Y/R)之分析。 結果如下:(1)單位努力漁獲量變動趨勢,在過去二十年間變動範圍從0.91至3.55kg/hour-tow,最近六年呈現-相當穩定狀態。其平均值為2.1kg/hour-tow;(2)最大持續生產量(MSY)由一般化餘量模式估得,其估得範圍從86公噸至125公噸之間,且相對應之最適漁獲努力量範圍從63,500小時平115,000小時(有效拖網小時);(3)瞬間自然死亡率經Widrig法估得為0.9175/年;(4)進入漁業之補充羣年齡估計為1歲,且第一次被捕獲年齡為1.5歲;(5)進入漁業之最適年齡經模式估計為1.375歲,此加入年齡下可得到最佳的Y/R值,其值為190 gm。
This paper deals with stock assessment on the resource of red snapper, Lutjanus altifrontalis, on the continental shelf off northwest Australia. Historical catch and standardized effort data series are analyzed by surplus production model. The natural and fishing mortalities of the resource are identified and the yield per recruit analysis is also performed to assess the status of the stock. The results show that (1) CPUE trend of the species in the past two decades varied from 0.91 to 3.55 kg per hour-tow and in recent six years was stable at 2.1 kg per hour-tow; (2) maximum sustainable yield ranged from 86 mt to 125 mt per year and its responding effective effort ranged from 63,500 hours to 115,000 hours of trawling per year; (3) the instantaneous rate of natural mortality of the species is estimated to be 0.9175 per year; (4) the age of recruitment of the species to the fishery is estimated to be 1 year old and the age of first capture is estimated to be 1.5 years old; and (5) the optimum age at entry into the fishery is 1.375 years old recommended for obtaining best yield per recruit under current mesh size and the potential yield per recruit is estimated to be 190 gm.


    

本卷期目次
ACTA Oceanographica Taiwanica 27期 (1991.9)
A TOPOGRAPHIC AND MAGNETIC ANALYSIS OFF SOUTHEASTERN TAIWAN/ Chuen-Tien ShyuSong-Chuen Chen
THE INDICATION OF PALEOCEANOGRAPHY FROM CARBON AND OXYGEN ISOTOPE RECORDS OF HOLOCENE PLANKTONIC FORAMS IN SEDIMENT CORE OR216-17 OFF NORTHERN LUTAO, SOUTHEASTERN TAIWAN/ Ying-Tzung ShiehMin-Pen ChenChung-Ho Wang
CALIBRATION AND CORRECTION OF CTD TEMPERATURE AND SALINITY DATA/ C. T. LiuS. P. ChengS. C. Pai
ANALYSIS OF ORGANIC AND CARBONATE CARBON IN SEDIMENTS/ Feng-Yiing ChangShuh-Ji KaoKon-Kee Liu
VELOCITY STRUCTURE AND NATURE OF THE FOREARC BASIN OFF WEST SUMATRA FROM EXPANDING SPREAD EXPERIMENTS/ Char-Shine LiuGeorge G. Shor JrJoseph R. Curray
MORPHOLOGY AND POSSIBLE ORIGIN OF THE KAOPING SUBMARINE CANYON HEAD OFF SOUTHWEST TAIWAN/ Ho-Shing YuChang-Sheng HuangJuin-Wei Ku
A STUDY ON FLEXIBLE PIPE MECHANICS UNDER NEGATIVE HYDROSTATIC PRESSURE/ Shih-Hsing KangNai-Kuang Liang
A NONLINEAR ESTIMATION OF SELECTION CURVE OF 20 SPECIES OF FISH FROM NORTHWESTERN AUSTRALIAN WATERS BY MARQUARDT'S ALGORITHM/ Tai-Shiang WenShean-Ya YehHsi-Chiang Liu
ASSESSMENT ON THE RED SNAPPER (LUTJANUS ALTIFRONTALIS) RESOURCE IN THE WATERS OFF NORTHWEST AUSTRALIA/ Dar-Ren JuShean-Ya Yeh
PRELIMINARY CHECKLIST OF FISHES FROM THE WATERS AT TUNG-SHA TAO (PRATAS ISLAND), SOUTH CHINA SEA/ Li-Shu ChenKwang-Tsao ShaoLee-Shing FangLin-Tai Her
 
   
 
   

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