黑斑紅鱸之生物學研究—Ⅰ10公克至2500公克體型魚之全長、標準長與體重關系

The Biology of Red Drum,Sciaenops Ocellatus-ⅠRelationships between Total Length,Standard Length,and Body Weiht of 10-g to 2500-g Fish

廖一久(I Chiu Liao)

《臺灣水產學會刊》 21卷1期 (1994/03) Pp. 79-89

https://doi.org/10.29822/JFST.199403.0007

摘要

本文描述一個以微電腦為基礎的水產生物長寬尺寸的量測系統。此系統是由量測臺、資料分類器，以及一個內插類比對數位轉換卡的微電腦所組成。當待測物放在量測臺上時，可以利用指標的移動以指示待測物的長或寬，連接於指標的電位計電路將指標的位移轉換為電壓信號，便可以由微電腦經由類比對數位轉換卡收集，而得到待測物的尺寸。經校正結果，此系統可量測50 cm以內的長寬尺寸，其不準度小於±0.14cm。資料分類器上有四個使用者自訂意義的按鍵，可用來定義資料或待測物的類别。一個BASIC程式可執行系統校正、量測、資料輸入/輸出、以及即時線上的資料統計分析。此系統可節省量測工作的時間與人力，減少由於人力觀測及輸入資料的錯誤機會，並藉由即時線上分析提高量測效率。

關鍵字

黑斑紅鱸 ； Sciaenops Ocellatus ； 自然產卵 ； 體長—體重關系

並列摘要

A microcomputer-based system for rapid and accurate measurement of the dimensionsof aquatic organisms is described.The system is composed of a dimension measuringboard,a category selector,and a microcomputer with an internal analog-to-digital convertercard.When the organism is placed on the measuring board,a pointer on the board canmove to touch the dimension of the specimen.A potentiometer circuit in the pointertransforms the displacement of the pointer into a voltage signal which can be collectedby the microcomputer through the analog-to-digital converter.The system can measurethe dimensions of organisms of up to 50 cm in length and/or width for an uncertaintyless than ±0.14 cm.The category selector has four user-defined keys and can be usedto add supplemental information to the dimension data of the specimen.A BASIC programis written to carry out various functions including calibration of the system,dimensionmeasurements,data and file input/output,and on-line statistical analyses of the data.Thissystem can save considerable time and labor on mass measurements,reduce human errorsby eliminating manual reading and recording of data,and improve measurement efficiencyby giving statistical parameters on site.

並列關鍵字

Red Drum ； Sciaenops Ocellatus ； Spontaneous Spawning ； Length-Weight Relationship