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題名:A NONLINEAR ESTIMATION OF SELECTION CURVE OF 20 SPECIES OF FISH FROM NORTHWESTERN AUSTRALIAN WATERS BY MARQUARDT'S ALGORITHM    
以馬柯特演算法非線性估計澳洲西北陸棚產20種底樓魚類之網目選擇曲線
著者:Tai-Shiang Wen(溫台祥) ;Shean-Ya Yeh(葉顯椏) ;Hsi-Chiang Liu(劉錫江)
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:73-85
語言:英語
摘要: 中文摘要PDF ; 英文摘要PDF

使用馬柯特演算法(Marquardt's algorithm),將澳洲西北陸棚產20種底棲魚類種別網目別網目選擇資料保留率(retention rate)配合非線性Richard模式,求取網目選擇曲線,估定選擇曲線之諸參數,同時推估魚種別網目別諸選擇參數。 本報告所採用估計選擇曲線諸參數起始值之方法,能使馬柯特演算法迭代運算迅速而穩定的收斂。同時結果顯示以非線性Richard模式配合保留率資料較簡單線性對數廻歸模式配合保留率資料為佳。配合Richard模式時其平均判定係數R2為0.9286,而配合簡單線性對數廻歸模式時其判定係數R2為0.7360。並且簡單對數線性模式之體長別保留率之逆算估計值經常是有偏的。
A method of estimation of the initial values of parameters in Richard curve is developed in this study for providing numerical iterative computation by computer a quicker (within 20 iterations) and stabler convergence. Parameters of selection curves of Richard model for 20 groundfish species from north western Australian waters were estimated by fitting the size specific escapement data using Marquardt's algorithm. Mesh selection parameters by mesh size of the 20 groundfish species were also investigated. By length retention rates back-calculated from (1) nonlinear Richard model and (2) simple linear log regression model are compared by determination coefficient. The results indicate that Richard model is more appropriate than simple linear regression model based on the fact that Mean R2 value of fitted Richard model (0.9286) is higher than that of fitted linear log regression model (0.7362). When linear log regression model is adopted, biased estimates may easily be generated.


    

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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