原名「台灣學術線上」
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1
題名:Study on the Relationship between Acoustic Backscattering Strength and Density of Larval Anchovies    
鮆科仔稚魚密度與超音脈波之后方散亂反射強度之相關性
著者:Ming-Anne Lee(李明安) ;Kuo-Tien Lee(李國添) ;Fang-Jen Sun(孫芳仁) ;Wen-Hung Shih(施文鴻) ;Hsi-Chi Ou(歐錫祺)
出版地區:台灣
出版城市:基隆市
學科:農林漁牧礦科學
關鍵字:超音波評估 ; 平均后方散亂反射強度 ; 鮆科仔稚魚群 ; Acoustic Estimation ; Average Backscattering Strength ; Schooling of Engraulid Larvae
刊名:Journal of the Fisheries Society of Taiwan
卷期:16卷4期(1989.12)
頁碼:217-230
語言:英語
摘要: 中文摘要PDF ; 英文摘要PDF

為瞭解Anchor Tag標識法之效果及其對白鰻,Anguilla japonica,之影響,利用經海水馴化之種鰻41尾,於1987年12月至1988年9月分成A(有標識且催熟)、B(有標識無催熟)、C(對照組)三組,進行標識及體長、體重等項觀測。標識後第一個月卽有絲藻附著,但號碼清晰可辨,第五個月起開始模糊。若管理良好或在大海中,絲藻附著不嚴重,則字跡應可維持半年以上。由於標識的發炎、潰爛,而引起標識籤的脫落;但如果打標識時確實植入鰻體,且環境適當,不使標識部位發炎、潰爛,標識籤應是不容易脫落的。標識籤若脫落,由於鰻魚之復原能力强,若有再捕,很難由標識的痕跡確認是經過標識之鰻魚。標識對種鰻的成長有明顯之影響,但標識部位的發炎、潰爛並不是導致種鰻死亡的主要原因。
A field culture experiment on adult Japanese eel(Anguilla japonica)wascarried out to investigate the efficiency of anchor tags and their effect ongrowth and survival of eel.It was conducted in a sea water pond fromDecember 1987 to September 1988.Forty one eel were divided into three groups:(A)tagged,with hormonetreatment;(B)tagged,without hormone treatment;and(C)control.Filamentous algae were found to grow on the tags one month after thecommencement of experiment when the marks on the tags were still clearlyseen.Five months latter,the marks on the tags became hardly recognizable.It is thought that the marks on the tags will last for at least six monthssince the covering of filamentous algae are less possible under a strictly controlled environment(or treated in open sea).It was found from this experiment that the tags were shed due to infections,inflammations and ulcerations of the fish.However,the tags will notbe easily shed when they were properly embedded deeply into the eel skinunder adequate environmental conditions.Taggings had an obvious effect on the eel,particularly the retardationof growth.Inflammations and ulcerations caused by tagging are not themain cause for the death of eel.




本卷期目次
Journal of the Fisheries Society of Taiwan 16卷4期 (1989.12)
Study on the Relationship between Acoustic Backscattering Strength and Density of Larval Anchovies/ Ming-Anne LeeKuo-Tien LeeFang-Jen SunWen-Hung ShihHsi-Chi Ou
Preliminary Study on the Effect of Anchor Tags on Japanese Eel,Anguilla Japonica/ Chin-Lau KuoTing-Chi YuChuan-Chen WuRong-Hwa Chern
Six New Records of Sharks from Taiwan/ Shoou-Jeng JoungJin-Jehn WuChe-Tsung Chen
Morphological Observations on Larval Development of Palaemon(Palaemon)Ortmanni(Crustacea: Decapoda: Palaemonidae)/ Yueh-Er TsouJhy-Yun ShyHsiang-Ping Yu
Acute Toxicity of Ammonia to Larval Penaeus Japonicus/ Jiann-Chu ChenChi-Ching TuWen-Shi Yang
The Effects of Residual Chlorine;Temperatures and Salinities on the Mortality of Larval Milkfish Chanos Chanos/ Yew-Hu ChienYu-Han Chou
東港沿岸草蝦(Penaeus monodon)筋肉中可溶性抽出物的季節變化/ 李棟梁何碧月鄭世榮廖一久
在相同養殖條件下四種蝦類可溶性抽出物成分的比較/ 李棟梁何碧月張秀娘廖一久
臺灣魚蝦貝類病毒癥之研究/ 郭光雄陳秀男羅竹芳
 
   
 
   

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