JP2003265062A - Foldable incorporeal penetrating label using magnetic film - Google Patents

Foldable incorporeal penetrating label using magnetic film

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Publication number
JP2003265062A
JP2003265062A JP2002118569A JP2002118569A JP2003265062A JP 2003265062 A JP2003265062 A JP 2003265062A JP 2002118569 A JP2002118569 A JP 2002118569A JP 2002118569 A JP2002118569 A JP 2002118569A JP 2003265062 A JP2003265062 A JP 2003265062A
Authority
JP
Japan
Prior art keywords
label
film
sign
fish
marker
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002118569A
Other languages
Japanese (ja)
Inventor
Shinichi Osumi
伸一 大角
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP2002118569A priority Critical patent/JP2003265062A/en
Publication of JP2003265062A publication Critical patent/JP2003265062A/en
Pending legal-status Critical Current

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Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

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  • Farming Of Fish And Shellfish (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a label slightly affecting an organism without causing falling off and omission of discoveries and reports. <P>SOLUTION: The label 6 is obtained by describing marks 4 such as an application for survey cooperation, an agency for carrying out survey or a contact address on a flat magnetic film 3, rolling the film 3, folding the rolled film 3, shaping (miniaturizing) the folded rolled film 3 into a cylindrical form with a water-soluble adhesive 5 and providing the label 6. The resultant label 6 is then embedded in a peritoneal cavity 8 of the organism of the object of the label. <P>COPYRIGHT: (C)2003,JPO

Description

【発明の詳細な説明】 【0001】 【考案の属する技術分野】本発明は生物個体群の移入,
分散,個体数を調査する標識再補調査,とりわけ魚介類
における標識放流調査の個体識別に用いる標識に関する
ものである。 【0002】 【従来の技術】標識再捕調査に用いられる標識に望まれ
る条件として(1)発見されやすい(2)生物への影響
が少ない(3)標識の脱落がない(4)標識発見者から
の報告もれが少ない,といった点Ricker(195
8)はあげている。さらに食用の種苗に大量に標識する
必要のある標識放流調査では(5)安価で容易に標識の
装着が可能(6)誤食されにくく,誤食されても人体に
無害である。などが求められる。 【0003】従来からの標識として,金属や合成樹脂で
製造され対象生物の体にフックで取り付け体外に標識本
体が露出する体外型タグ,金属片や電子部品などで構成
された標識本体を体内に埋め込み金属探知器やX線等の
探知器を用いて検出する体内型タグ,鰭や耳など生物体
に傷や印をつける体外マーキングなどがある。 【0004】体外型タグの例としてアンカータグ,ダー
トタグ,リボンタグなどがあるが,そのいずれも体外に
露出しているため標識の発見が容易な反面,カムフラー
ジュが損なわれ外敵に発見されやすく,水の抵抗を受け
遊泳が阻害される。また,装着部は傷口が塞がらず常に
病原体の感染門戸になるなど生物への影響が大きい。さ
らに,標識は常に外界にさらされ劣化が激しく,生体に
癒着しないため脱落も多く1年以上の追跡が出来ないと
いった問題がある。 【0005】体内型タグの例としてステンレス線を用い
たCorded Wire Tag,金線を用いた金線
標識,電子部品からなるPITタグなどがあげられる。
これらの体内型タグはいずれも体内(頭部や筋肉の結合
組織内)に突入するため小型であり,生物に対する影響
や脱落が比較的小さい。しかし,その半面体内に埋め込
まれているため外観からの識別は出来ず,解剖しても微
小で肉眼による発見が困難であるため特殊な検知器を持
たない一般の人からの情報は得がたい。さらに,コード
ワイヤータグなどの金属片を磁化し標識とするものは磁
気が弱く,時間とともに磁気が減衰し探知できなくな
る。また,これらの内部標識は誤食される恐れがあるた
め国内での使用は自粛されがちである。 【0006】体外マーキングの例として,鰭カット,鰭
抜去,焼印,ラテックスなどの色素を透明部分に注入す
る方法,プラスチック製の微小な固形板にコード化され
た数文字の記号を記し,折り畳むことなく透明組織に埋
め込むVisible Implant Alphan
umeric Tagなどがあげられる。体外マーキン
グは小型種苗に装着可能で安価であるが,生体のもつ再
生能力により標識が消えたり識別が困難になったりマー
キングの種類に限りがあるなどの問題がある。Visi
ble Implant Alphanumeric
Tagやラテックスなどは魚体の透明部分に挿入するた
め外部から目視により発見できるが,透明部分の無い魚
種には使用できず,さらに透明部分も多くの場合小さい
ので標識の装着は困難である。 【0007】以上の欠点に加え,これまでの全ての標識
は10cm足らずの放流魚に標識を装着するためどうし
ても標識は小型化してしまい,標識に記入できる情報量
が制限されていた。情報をコード化して標識に多くの情
報を持たせたものもあるが,コードを読めない一般の人
からの報告は期待できない。そのため,今日用いられて
いる全ての標識に共通の問題として,一般の人が標識魚
を再補し標識を発見したとしても,標識が何を意味して
いるものか,また何処に連絡してよいか解らないため情
報もれとなるケースが多いといった問題があった。 【0008】しかしながら放流される魚類の移動能力は
非常に大きく,標識放流調査ではまず対象生物の移動範
囲を知るため広範囲の定性的調査が必要となる。そのた
め漁業者や遊漁者に再捕報告を依頼する再捕報告方式の
調査が主体となり,広範囲における一般からの再捕報告
をどのように収集するかが大きな問題となっていた。従
来は,魚が集まる漁協や市場に依頼して標識魚の発見,
保管,連絡を行ってもらう方法や,ポスター等を貼り遊
漁者などに報告を求める方法を取ってきた。しかし,こ
の方法だとポスター代や宣伝,魚の買い取りに莫大な費
用や労力を必要とし,さらにポスターなどで宣伝した場
所や,報告依頼した地域以外で再捕された場合では再捕
報告が全く期待できなかった。また,宣伝効果も数ヶ月
で薄れてしまうため(ポスターの劣化や,人々の印象の
薄弱化,報告依頼の忘却等)数年単位の調査が必要であ
る放流調査にはうまく機能しなかった。加えて,他の機
関が放流した標識魚の報告や(素人には標識の種類の識
別は困難である),記憶違い(発見から報告までに時間
がかかり記憶が薄れる),聞き間違い(間接的に報告が
なされるケースが多いため)により試験データに間違っ
た情報が混入する等の問題があった。 【0009】これらの問題から,これまでの標識だと実
質上比較的狭い範囲での短期間の調査しかカバーでき
ず,コストもかかり得られる情報も不確かなものだっ
た。このように,標識に求められる条件を全て満たす標
識は現在聞発されていない。 【0010】 【発明が解決しようとする課題】本発明は前述の欠点を
除くためになされたものであり,発見されやすく報告漏
れの無い標識であり,かつ生物への影響が少なく脱落が
無く安価で装着しやすく放流後の調査も容易な標識を提
供することにある。 【0011】 【課題を解決するための手段】報告漏れを少なくし放流
後の調査を容易にするためには,一般人が容易にその標
識の意味を理解し協力できるよう,多くの可視的な意味
の伝わる文字情報を記入する必要がある。多くの文字情
報を記入するためには大きい表面積が必要となる。しか
し,標識を大型化すれば生物への影響も大きくなる。そ
こで,柔軟性のある薄いフィルムを小さく折り畳めば体
積が小さくなり,標識を装着する生物に負荷をかけずに
面積を大きくできることを思いついた。また,外部に露
出していては生物に対する影響が大きくなり標識自体の
劣化も激しくなるため内部標識とし,弾性のある素材を
折り畳み水溶性の接着剤で体内(腹腔内)に突入するこ
とによって,腹腔内で接着がはずれ少し広がり突入穴よ
り大きくなるため脱落を防ぎ,腹腔外に取り出した時さ
らに大きく広がり発見しやすくする方法を見いだした。
さらに,磁性体微粉末を薄く塗布することにより長期
間,強い磁力の保持が可能であることを見いだし,磁気
探知器を用い外部からの発見が容易に行えるようにし
た。 【0012】上記のことを見出し,このような知見から
扁平な磁気フィルムを折畳み,動物体内(腹腔内)に突
入し,標識再補調査用(主に魚類などの標識放流調査)
の標識とする本発明を考案した。 【0013】 【課題を解決しようとする課題および手段】それを図面
について説明すれば,図1のように硬磁性体2の微粒子
粉をフィルム1に塗布,蒸着,またはフィルム材料に練
り込んだ磁気フィルムを素材に用いる。フィルムの表面
上には図2のように放流調査の協力要請,放流魚の職別
データ,調査実施機関,連絡先等の刻印4を肉眼で確認
でき,一般の人が容易に理解できる言語で記入する。刻
印を施した磁気フィルムは磁気シートに電子複写したも
のを小さく切り分けることにより従来からある機械を利
用して容易に大量生産できる。次に図3のようにこのフ
ィルムを巻き付け,小さく折り畳んでゆき円柱状に整形
し末端を水溶性の接着剤5で接着する。また,予めこの
接着剤に感染症予防のための抗生物質(ストレプトマイ
シン,テラマイシンなど),ワクチン等を溶かし練りこ
んでおくことにより標識装着後の薬浴や投薬過程を省略
することが出来る。 【0014】フィルム1は柔軟性と耐水性を兼ね備えた
素材が好ましくプラスチック,ゴム,セルロース,金属
箔などがあげられる。プラスチック素材にはポリエチレ
ン,ポリプロピレン,メチルペンテン樹脂.ポリカーボ
ネイト,塩化ビニール樹脂,メタクリル樹脂,ポリスチ
レン,スチレン・アクリロニトリルコポリマー,スチレ
ン系樹,ABS 樹脂,アアセタール樹脂,ナイロン,
フッ素樹脂などがあり,いずれも熱可塑性を有しており
加工しやすく耐水性が有り,生体に対し無害であり素材
として好ましい。セルロースには紙,セロハン.アセテ
ートなどがあり体外では枯草菌などにより分解され自然
に優しい。ゴムにはシリコンなどがあり生体親和性が高
く生体に対する影響が少ない。また,フィルムの色は蛍
光色などの視認性のよい色を用いると発見しやすくな
る。 【0015】磁性体材料には,全ての磁気を持つ材料が
使用できるが,鉄,コバルト.ニッケル,カドミウム,
テルビウム.ジスプロシウム,ホルミウム,エルビウ
ム,ツリウムなどを含む合金および金属間化合物,並び
にEuO,CrO,CrBrなどの強磁性体や,M
nO,Cr,FeS,FeCl,MnAsなど
の反強磁性体,Feを始め各種のフェライト,鉄
ガーネット,クロマイトなどのフェリ磁性体が,特に強
い磁性を持ち保磁力が大きいため,探知しやすく長期間
磁気の減衰が無いなどの標識として好ましい性質を持
つ。さらに磁性体を粉末にして薄く塗布することによっ
て抗磁力を300〜500エルステッドまで強めること
ができる(コードワイヤータグなどの金属片では抗磁力
が50エルステッド程度)。また本案はオーディオテー
プやビデオテープ同様,音声情報や画像情報を記録する
ことが出来る。または,情報をデジタル化して記録すれ
ば標識調査には十分過ぎるほどの膨大な情報を記録する
ことができ,読み取り装置をコンピューターと連動させ
ればデータ管理が容易になる。 【0016】このようにして完成した小型の標識6を,
図5に示すように注射器型の標識打ち込み器7に装填
し,標識対象魚の腹腔8に挿入する。腹腔内に打ち込ま
れた標識6は,図6に示すように体液によって末端を接
着していた水溶性の接着剤が溶かされ,腹腔内のすき間
の大きさに合わせて少し広がる。そのため,標識6は注
射針の突入孔10より大きくなり,抜け落ちることは無
い。また,標識の突入孔は数日で塞がるため,この標識
が脱落することは完全になくなる。また,傷口の融合を
妨げるものは無く,薬も直に作用するため傷口が早急に
塞がり,外部標識のように装着部が病原体の感染門戸に
なることはない。なお,フィルムは柔軟性のある素材で
出来ているため内臓を傷つけることはない。 【0017】次に,標識魚を放流するが,標識が魚体内
にあるため水の抵抗を受けず,外敵からの発見されやす
さも非標識魚と何ら変わりがない。さらに柔軟性のある
素材を用いているため,身体の動きに応じて変形し運動
を阻害することはない。また,生物体に毒性の無い素材
を用いている。このように,標識対象生物に与える影響
が非常に軽微で,標識の脱落が無いことが特徴に上げら
れる。さらに標識自体も紫外線など外界の環境変化にさ
らされること無いため素材や刻印の劣化がない。 【0018】その後,標識魚は成長しつつ広い範囲に分
散・移動してゆき各地で再補される。漁業者に再補され
た魚は漁協や市場などに集められるため,調査員を配し
て磁気探知器で標識の有無をまとめて調査出来る。磁気
探知のため開腹も魚を1尾ずつチェックする必要もな
く,山ずみにしたものを探知器でなぞるだけで標識魚の
有無を一度に確認できる。このように確実に発見でき,
脱落や生物に対する影響も無いため定量的な調査に非常
に有効である。 【0019】さらに漁業者以外の遊漁者や調査員を配し
た範囲外で再補された場合,図7に示すように再補され
た魚は調理時に非可食部の内臓を取り除くため腹腔は切
り開かれる。この際,内臓11と一緒に標識6は取りだ
されるが,腹腔内圧から解き放たれるため折り畳まれて
いた標識6は広がり,みかけじょう大きくなり調理者の
目に留まりやすくなる。標識は視認性のよい色で,見た
目のサイズも大きくなるので標識は容易に発見される。
さらに,非可食部の内蔵11と一緒に排除される上,発
見も容易なので誤食される心配も無く,従来の外部標識
と同様に日本国内での使用が可能である。また,金属片
など硬い材料でなく,人体に無害な素材を用いているた
め,万一誤食した場合でも消化器官を傷つけることなく
容易に体外に排出される。 【0020】標識の表面には標識調査の協力願,放流年
月日,実施機関,連絡先などのメッセージが容易に読み
取れるように明記されているため,発見者はこの標識が
なにを意味するものなのか何処に報告すれば良いかをす
ぐさま理解し,連絡場所を間違えること無く標識調査実
施機関に家庭から直に連絡できる。この際,漁獲方法,
魚のサイズ,漁獲場所および胃内容物など貴重なデータ
を,確認を取りながら直接聞き出すことが出来る。この
ように第三者を間に挟むことなく直ちに連絡が取れるた
め又聞きや記憶の薄弱による間違った情報の混入が無
い。さらには標識自体に宣伝効果があり標識魚と一緒に
移動するため,ポスターによる宣伝地域外や宣伝期間外
でも再補報告が期待できる。つまりこの標識を用いれば
大掛りな調査や宣伝をしなくても,いながらにして数年
単位に及ぶ長期間の,地球規模での広範囲の定性的調査
が可能となる。例えるなら,この標識はポスター付きの
標識であり,その宣伝効果により報告漏れを防いでいる
点が特にユニークである。 【0021】このように,この標識は構造が単純ながら
標識に求められる条件(1)発見されやすい(2)生物
への影響が少ない(3)標識の脱落がない(4)標識発
見者からの報告もれが少ない(5)容易に大量生産で
き,コストもかからない(6)人体に無害で誤食されに
くい,などを全て満たしている。また,定性的な調査と
定量的な調査の両方に使用でき,調査にコストがかから
ないなど有利な点が多い標識である。 【0022】 【実施例】実施例1(全長5〜10cmの魚類を用いた
標識装着試験)では,フィルム素材にはプラスチックの
ポリエチレンを用いた。色は黄色とし,二酸化クロムの
微粒子を塗布した。フィルムサイズは4cm×1cm×
厚さ0.05mmとし,インクリボンによる焼き付け印
刷により刻印を施した。永久磁石によって磁化した後,
フィルムを丸め円柱状に整形し(半径1mm×高さ1c
m)末端を,テラマイシンを練り込んだ水溶性接着剤で
固定した。 【0023】できあがった標識を全長8cmののマアジ
10尾にそれぞれ装着した。装着には注射器を改造し自
作した標識打ち込み器7を用い,注射針内の標識6をピ
ストンに固定したシャフトで押し出し、腹腔内8に突入
した。打ち込み機にはマガジン9を設け連続的に注射針
内に標識が送り込まれるようにした。打ち込み後は薬浴
や投薬は行わなかった。マアジは瀬戸内海の養殖場の海
上小割り網生簀で1年間飼育した後,取り上げ,成長,
生残,行動,標識の脱落率,磁気探知器での検出率,お
よび標識の腹腔内での状態を調査した。また比較のため
非装着魚と,現在一般によく使用されているダート型の
外部標識を背部に装着したものを,同様に飼育した。 【0024】その結果を表1に示す。標識装着後の行動
観察では,フィルム型標識は対照区となんら変わりなく
異常行動は観察されなかった,ダート型標識では,生簀
網に標識装着部をこすりつける行動が観察された。標識
装着部はダート型標識では化膿し取り上げ時まで傷口が
塞がることはなかったが,フィルム型標識では数日で突
入孔は塞がっていた。また,磁気の減衰もなく装着時と
同じ距離(魚体から20cmの距離)から磁気探知が可
能であった。1年後の腹腔内部でのフィルムの状態は1
0検体全て,標識の色落ち,文字の消失,標識本体の破
損はなく良好な保存状態であった。さらに,図8に示す
ように標識は少し広がり脂肪組織に包まれた状態で,他
の臓器や腹腔内壁に破損や出血は認められなかった。内
臓を取りだすとさらに標識は広がり容易に発見できた。 【0025】 【表1】 【0026】実施例2(全長4〜8cmの頭足類を用い
た標識装着試験)では,フィルム素材にはプラスチック
の塩化ビニールを用いた。色は緑蛍光色とし,γ酸化鉄
の微粒子を塩化ビニールに練り込んだ。フィルムサイズ
は4cm×5mm×厚さ0.01mmとし,電子複写に
より刻印を施した。フィルムを丸め円柱状に整形し(半
径0.25mm×高さ5mm)末端を,ニフルスチレン
酸ナトリウムを練り込んだ水溶性接着剤で固定した。で
きあがった標識を全長6cmのタコの腹部内にそれぞれ
装着した。装着に用いた装着器の針はより細い太さ1.
2mmのものを用いた。ダート型外部標識も腹部末端部
に装着した。飼育はコンクリート水槽で行い,実施例1
と同様の試験を行った。結果は,表2に記す。 【0027】 【表2】 【0028】実施例3(甲幅4〜6cmの甲殼類を用い
た標識装着試験)フィルム素材にはプラスチックのポリ
プロピレンを用いた。色はオレンジの蛍光色とし,コバ
ルトをポリプロピレンに蒸着した。フィルムサイズは4
cm×8mm×厚さ0.01mmとし,電子複写により
刻印を施した。フィルムを丸め円柱状に整形し(半径
0.25mm×高さ8mm)全体を,ニフルスチレン酸
ナトリウムを練り込んだ水溶性接着剤につけ込みコーテ
ィングし固定した。甲幅5cmのガザミの前側縁部に標
識を打ち込んだ。ダート型外部標識も前側縁部に装着し
た。飼育は砂を敷いたコンクリート水槽で行い,実施例
1と同様の試験を行った。結果は表3に記す。 【0029】 【表3】 【0030】 【発明の効果】この標識は構造が単純ながら(1)発見
されやすい(2)生物への影響が少ない(3)標識の脱
落がない(4)標識発見者からの報告もれが少ない
(5)容易に大量生産できコストもかからない(6)誤
食されにくく人体に無害,など標識に求められる条件を
全て満たしている。そのため,定性的な調査と定量的な
調査の両方をこなすことができる。さらに,標識自体に
放流機関名,連絡先,が標識に記されているため宣伝な
ど調査努力をしなくても,一般からの情報がいながらに
して得られる。しかも,標識の脱落が無い性質も加わ
り,どんなに遠距離の宣伝外地域でも,何十年たとうと
も同様に情報が得られる。このため,これまで調査が不
可能であった長寿命の移動能力の高い魚種の調査を,調
査コストをほとんどかけず行うことができる。
Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the transfer of a biological population,
The present invention relates to tag re-supplementary surveys to investigate variance and the number of individuals, especially to the tags used for individual identification in tagging surveys of fish and shellfish. 2. Description of the Related Art As conditions desired for a tag used in a tag recapture survey, (1) it is easy to be found, (2) the effect on organisms is small, (3) the tag does not fall off, and (4) the tag discoverer. Ricker (195
8) is raised. In addition, in tagging surveys where it is necessary to label edible seedlings in large quantities, (5) inexpensive and easy to apply the tag (6) it is hard to be accidentally eaten, and it is harmless to the human body if accidentally eaten. Is required. As a conventional sign, an extracorporeal tag made of metal or synthetic resin, attached to the body of a target organism with a hook, and exposing the sign body outside the body, a sign body composed of metal pieces and electronic parts, etc., is inserted into the body. There are an in-body tag that is detected using an embedded metal detector or a detector such as an X-ray, and an extracorporeal marking that scratches or marks an organism such as a fin or an ear. [0004] Examples of extracorporeal tags include anchor tags, dirt tags, and ribbon tags, all of which are exposed outside the body, making it easy to find the sign. Swimming is hindered by resistance. In addition, the wound does not close the wound, and it has a great influence on living things, such as being always a gateway to pathogen infection. Furthermore, there is a problem that the sign is always exposed to the outside world, is severely deteriorated, does not adhere to the living body, is often dropped, and cannot be tracked for more than one year. Examples of the in-body type tag include a Corded Wire Tag using a stainless wire, a gold wire marker using a gold wire, and a PIT tag made of an electronic component.
Each of these in-body tags is small because it penetrates into the body (into the connective tissue of the head and muscles), and has a relatively small effect on living things and falling off. However, since it is embedded in the half-faced body, it cannot be identified from its external appearance. Even if it is dissected, it is difficult to find it with the naked eye, so it is difficult to obtain information from ordinary people who do not have a special detector. In addition, a mark made by magnetizing a metal piece such as a code wire tag is weak in magnetism, and the magnetism is attenuated with time and cannot be detected. In addition, the use of these internal signs in the country is apt to be discouraged because they can be eaten by mistake. [0006] Examples of extracorporeal marking include a method of injecting a dye such as fin cut, fin removal, branding, latex, etc. into a transparent part, marking a few characters coded on a small solid plastic plate, and folding it. Visible Implant Alphan embedded in transparent tissue
umeric Tag and the like. In vitro marking can be attached to small seedlings and is inexpensive, but there are problems such as the disappearance of the label, difficulty in identification, and limited marking types due to the regeneration ability of the living body. Visi
ble Implant Alphanumeric
Tag and latex can be visually detected from the outside because they are inserted into the transparent part of the fish, but they cannot be used for fish species that do not have a transparent part, and it is difficult to attach a marker because the transparent part is often small. [0007] In addition to the above drawbacks, which until just labels for all labels for mounting the label released fish not trivial 10cm of causes is miniaturized, the amount of information that can be entered in the label is limited. Some codes encode the information and give the sign a lot of information, but reports from the general public who cannot read the code cannot be expected. Therefore, a common problem with all tags used today is that, even if the general public finds the tag by re-supplementing the tag fish, let us know what the tag means and where to contact it. There was a problem that information was often leaked because it was not understood. [0008] However, the movement ability of the released fish is very large, and in the tagging survey, a wide-range qualitative survey is first required to know the moving range of the target organism. For this reason, surveys on recapture reporting methods, in which fishermen and recreational fishermen are requested to report recaptures, have become the main subject, and how to collect recapture reports from the general public over a wide area has become a major issue. In the past, we asked fisheries cooperatives and markets where fish gathered to find labeled fish,
We have been using methods of storage and communication, as well as putting posters and so on and requesting reports from recreational fishermen. However, this method requires enormous costs and labor for posters, advertisements, and fish purchases. In addition, reports of recaptures are not expected if they are recaptured in places other than those advertised on posters or in areas where reports were requested. could not. In addition, since the advertising effect diminishes in a few months (deterioration of posters, weakening of people's impressions, forgetting to request reports, etc.), it did not work well for release surveys, which require surveys every several years. In addition, reports of tagged fish released by other agencies (it is difficult for amateurs to identify the type of tag), misunderstandings (it takes a long time from discovery to reporting and the memory fades), and misunderstandings (indirectly There are many cases in which reports are made), so that incorrect information may be mixed in the test data. [0009] Due to these problems, the conventional signs can cover only a short period of investigation in a practically relatively narrow area, and the information that can be costly and uncertain is uncertain. As described above, no sign that satisfies all the conditions required for the sign is currently heard. SUMMARY OF THE INVENTION [0010] The present invention has been made to eliminate the above-mentioned drawbacks, and is a sign which is easy to be found and has no report omission. The purpose of the present invention is to provide a sign which is easy to be attached to and is easy to investigate after release. [0011] In order to reduce the omission of the report and to facilitate the investigation after the release, a number of visible meanings are used so that the general public can easily understand and cooperate with the meaning of the sign. It is necessary to fill in the character information transmitted. A large surface area is required for writing a lot of character information. However, the larger the tag, the greater the impact on living things. Therefore, I came up with the idea that if a flexible thin film is folded small, the volume can be reduced, and the area can be increased without imposing a load on the organism to which the sign is attached. In addition, if exposed to the outside, the effect on living organisms will increase and the deterioration of the sign itself will become severe, so it will be used as an internal sign, and by folding an elastic material into the body (intraperitoneal cavity) with a water-soluble adhesive, We found a method to prevent the falling off because the adhesive spreads slightly in the abdominal cavity and becomes larger than the entry hole, so that it can be spread out even more when it is taken out of the abdominal cavity to make it easier to find.
Furthermore, they discovered that a strong magnetic force can be maintained for a long period of time by applying a thin coating of magnetic substance fine powder, and a magnetic detector was used to facilitate discovery from outside. [0012] Based on the above findings, the flat magnetic film is folded from the above findings, penetrated into the animal body (intraperitoneal cavity), and used for re-supplementation of labeling (mainly for tagging of fish and the like).
The present invention has been devised as a sign of the present invention. Referring to the drawings, as shown in FIG. 1, a fine powder of a hard magnetic material 2 is applied to a film 1, deposited, or kneaded into a film material. Use film as material. On the surface of the film, as shown in Fig. 2, the request for cooperation in the release of the fish, the data on the type of fish released, the institution conducting the survey, the contact information, etc. 4 can be visually checked and entered in a language that can be easily understood by the general public. I do. The engraved magnetic film can be easily mass-produced by using a conventional machine by cutting an electronically copied magnetic sheet into small pieces. Next, as shown in FIG. 3, this film is wound, folded small, shaped into a cylindrical shape, and the ends are bonded with a water-soluble adhesive 5. In addition, by dissolving and kneading antibiotics (such as streptomycin and terramycin) and vaccines for preventing infectious diseases into the adhesive beforehand, it is possible to omit the medicine bath and the medication process after the label is attached. The film 1 is preferably made of a material having both flexibility and water resistance, and examples thereof include plastic, rubber, cellulose, and metal foil. Plastic materials are polyethylene, polypropylene, and methylpentene resin. Polycarbonate, vinyl chloride resin, methacrylic resin, polystyrene, styrene / acrylonitrile copolymer, styrene resin, ABS resin, acetal resin, nylon,
There are fluororesins and the like, all of which have thermoplasticity, are easy to process, have water resistance, are harmless to living bodies, and are preferable as materials. Paper and cellophane include cellulose. There is acetate, etc., which is naturally degraded outside the body by Bacillus subtilis. Rubber includes silicone and the like, and has high biocompatibility and little influence on living bodies. In addition, when the color of the film is a color with good visibility such as a fluorescent color, it is easy to find out. As the magnetic material, any material having magnetism can be used. Nickel, cadmium,
terbium. Alloys and intermetallic compounds containing dysprosium, holmium, erbium, thulium, etc .; ferromagnetic materials such as EuO, CrO 2 , CrBr 3 , M
Antiferromagnetic substances such as nO, Cr 2 O 3 , FeS, FeCl 2 , and MnAs, and ferrimagnetic substances such as various ferrites such as Fe 3 O 4 , iron garnet, and chromite have particularly strong magnetism and a large coercive force. Therefore, it has a desirable property as a marker that is easy to detect and has no magnetic attenuation for a long time. Further, the coercive force can be increased to 300 to 500 Oe by applying a thin powder of a magnetic material (the coercive force of a metal piece such as a cord wire tag is about 50 Oe). The present invention can record audio information and image information as well as audio tapes and video tapes. Alternatively, if the information is digitized and recorded, it is possible to record a huge amount of information that is more than sufficient for a tag survey, and if the reading device is linked to a computer, data management becomes easy. The small sign 6 completed in this way is
As shown in FIG. 5, it is loaded into a syringe-type marker driving device 7 and inserted into the peritoneal cavity 8 of the fish to be labeled. As shown in FIG. 6, the water-soluble adhesive, whose end has been adhered by the body fluid, is dissolved in the marker 6 that has been injected into the abdominal cavity, and spreads slightly according to the size of the gap in the abdominal cavity. Therefore, the marker 6 becomes larger than the injection hole 10 of the injection needle and does not fall off. In addition, the entry hole of the sign is closed in a few days, so that the sign does not fall off completely. In addition, there is nothing to hinder the fusion of the wound, and the drug acts directly so that the wound is immediately closed, and the mounting part does not become a pathogen of the pathogen, unlike external signs. The film is made of a flexible material and does not damage the internal organs. Next, the labeled fish are released. However, since the marker is in the fish body, there is no resistance to water, and the likelihood of being detected by an external enemy is no different from that of the unlabeled fish. Furthermore, since it is made of a flexible material, it does not deform according to the movement of the body and does not hinder the movement. In addition, materials that are not toxic to living organisms are used. As described above, the effect on the target organism for labeling is very slight, and the feature is that there is no dropout of the label. Further, since the sign itself is not exposed to external environmental changes such as ultraviolet rays, there is no deterioration of the material and the marking. Thereafter, the labeled fish are dispersed and moved over a wide range as they grow, and are replenished in various places. Fish re-supplied by fishermen are collected at fisheries cooperatives and markets, so that researchers can be deployed and magnetic markers can be used to collectively check for signs. There is no need to open the stomach or check the fish one by one because of magnetic detection, and you can check the presence of labeled fish at once by simply tracing the mountainous object with a detector. In this way, they can be reliably detected,
It is very effective for quantitative investigation because there is no dropout and no effect on organisms. Further, when the fish is resupplied outside the range where the recreational fishermen and the investigators other than the fishermen are arranged, as shown in FIG. It is cut open. At this time, the marker 6 is taken out together with the internal organs 11, but the marker 6 released from the intra-abdominal pressure is spread, becomes apparently larger, and is easily noticed by the cook. The sign is easily visible because the sign has a good visibility and the size of the sign increases.
Furthermore, it is eliminated together with the built-in non-edible portion 11 and is easy to find, so that there is no risk of accidental eating, and it can be used in Japan like a conventional external sign. In addition, since it is made of a material that is harmless to the human body, rather than a hard material such as a metal piece, even if it accidentally eats, it is easily discharged outside the body without damaging the digestive organs. On the surface of the sign, a message such as a request for cooperation in sign survey, date of release, executing agency, and contact information is clearly stated so that the signer can understand what the sign means. You can immediately understand where the report is and what you should report, and you can contact the signing surveying agency directly from home without making a mistake in the place to contact. At this time,
Valuable data such as fish size, catch location and stomach contents can be heard directly with confirmation. In this way, since a contact can be made immediately without a third party being interposed, there is no mixing of wrong information due to weakness of hearing or memory. Furthermore, since the tag itself has an advertising effect and moves with the tagged fish, re-supplementary reports can be expected outside the advertising area or outside the advertising period by posters. In other words, this sign allows long-term qualitative surveys on a global scale of several years without large-scale surveys and publicity. The sign is a sign with a poster, for example, and it is particularly unique in that its advertising effect prevents omission of reports. As described above, this label has a simple structure, but the conditions required for the label are as follows: (1) easy to find; (2) little effect on living organisms; (3) no loss of the label; It satisfies all of the following: there are few reports, (5) it can be easily mass-produced, and there is no cost. (6) it is harmless to the human body and is not easily eaten by mistake. In addition, it can be used for both qualitative and quantitative surveys, and has many advantages such as low cost. EXAMPLE In Example 1 (labeling test using fish having a total length of 5 to 10 cm), plastic polyethylene was used as a film material. The color was yellow, and fine particles of chromium dioxide were applied. The film size is 4cm x 1cm x
The thickness was set to 0.05 mm, and engraving was performed by printing using an ink ribbon. After being magnetized by a permanent magnet,
Round the film into a cylindrical shape (radius 1mm x height 1c)
m) The ends were fixed with a water-soluble adhesive into which terramycin was kneaded. The labels thus completed were respectively mounted on ten fishes of 8 cm in length. The syringe was modified and a self-made marker driving device 7 was used. The marker 6 in the injection needle was pushed out with a shaft fixed to a piston, and was inserted into the abdominal cavity 8. The driving machine was provided with a magazine 9 so that the marker could be continuously fed into the injection needle. No drug bath or medication was given after the injection. Japanese horse mackerel is bred for one year in a marine submarine net cage at a cultivation site in the Seto Inland Sea.
Survival, behavior, marker shedding rate, magnetic detector detection rate, and intraperitoneal marker status were investigated. For comparison, non-fitted fish and those with a dart-type external marker, which is now commonly used, attached to the back were bred in the same manner. Table 1 shows the results. In the behavioral observation after tagging, no abnormal behavior was observed for the film-type marker as in the control group, and for the dirt-type marker, the behavior of rubbing the marker-attached part on the fish net was observed. The dart-type label was suppurated and the wound was not closed until picking up, but the entry hole was closed in a few days with the film-type label. In addition, it was possible to detect magnetism from the same distance (20 cm from the fish body) as when it was worn without attenuation of magnetism. One year later, the condition of the film inside the abdominal cavity was 1
All of the 0 samples were in a good storage state without discoloration of the label, loss of characters, and damage to the label body. Further, as shown in FIG. 8, the marker was slightly spread and wrapped in adipose tissue, and no damage or bleeding was observed in other organs or the inner wall of the abdominal cavity. When the internal organs were removed, the marker spread further and was easily found. [Table 1] In Example 2 (labeling test using cephalopods with a total length of 4 to 8 cm), plastic vinyl chloride was used as the film material. The color was a green fluorescent color, and fine particles of gamma iron oxide were kneaded into vinyl chloride. The film size was 4 cm × 5 mm × thickness 0.01 mm, and was stamped by electronic copying. The film was rounded and shaped into a cylindrical shape (radius 0.25 mm × height 5 mm), and the end was fixed with a water-soluble adhesive into which sodium niflustyrene was kneaded. Each of the completed markers was attached to the abdomen of an octopus having a total length of 6 cm. The needle of the mounting device used for mounting is thinner.
A 2 mm one was used. A dirt-type external marker was also attached to the end of the abdomen. The breeding was carried out in a concrete aquarium.
The same test was performed. The results are shown in Table 2. [Table 2] Example 3 (Labeling test using shells with a shell width of 4 to 6 cm) Plastic polypropylene was used as the film material. The color was orange fluorescent and cobalt was deposited on polypropylene. Film size is 4
cm × 8 mm × thickness 0.01 mm, and stamped by electronic copying. The film was rounded and shaped into a columnar shape (radius 0.25 mm × height 8 mm), and the whole was soaked in a water-soluble adhesive kneaded with sodium nifurstyreneate, coated and fixed. A sign was struck into the front edge of a 5 cm instep incision. A dirt-type external marker was also attached to the front edge. The breeding was carried out in a concrete tank laid with sand, and the same test as in Example 1 was performed. The results are shown in Table 3. [Table 3] As described above, this marker has a simple structure, (1) is easily detected, (2) has little effect on living organisms, (3) there is no dropout of the label, and (4) there is no report from the label discoverer. It satisfies all of the requirements for signs, such as low (5) easy mass production and low cost (6) harmless to human body due to poor eating. Therefore, both qualitative and quantitative surveys can be performed. Furthermore, since the name of the release agency and contact information are written on the sign itself, the information can be obtained from the general public without any research efforts such as advertising. In addition, it has the property that the sign does not fall off, so that information can be obtained no matter how far away from the publicity, even after decades. For this reason, it is possible to conduct a long-lived fish survey with a high ability to move, which was previously impossible to investigate, at little cost.

【図面の簡単な説明】 【図1】本考案の断面図である。 【図2】本考案の全展開図である。 【図3】本考案の半展開図である。 【図4】本考案の斜視図である。 【図5】本考案の装着方法を示した図である。 【図6】本考案の魚体の腹腔内での装着直後の状態を示
した図である。 【図7】本考案が魚体から取り出され発見される状態を
示した図である。 【図8】本考案の1年後の魚体内における状態を示した
写真である。 【符号の説明】 1 フィルム 2 硬磁性体 3 磁気フィルム
4 刻印 5 水溶性接着剤 6 標識 7
標識打ち込み器 8 腹腔 9 マガジン 10 突入孔 11 内蔵 12 脂肪
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of the present invention. FIG. 2 is a full development view of the present invention. FIG. 3 is a partially exploded view of the present invention. FIG. 4 is a perspective view of the present invention. FIG. 5 is a view showing a mounting method of the present invention. FIG. 6 is a view showing a state immediately after the fish body of the present invention is worn in the abdominal cavity. FIG. 7 is a view showing a state in which the present invention is taken out from a fish body and found. FIG. 8 is a photograph showing a state in a fish body one year after the present invention. [Description of Signs] 1 Film 2 Hard magnetic material 3 Magnetic film
4 Carved seal 5 Water-soluble adhesive 6 Mark 7
Marking tool 8 Abdominal cavity 9 Magazine 10 Entry hole 11 Built-in 12 Fat

Claims (1)

【特許請求の範囲】 【請求項1】折り畳んだフィルムを生物体内に突入し,
標識再補調査用の標識とする。
Claims: 1. The folded film is inserted into a living organism,
Use as a marker for reassessment of the marker.
JP2002118569A 2002-03-14 2002-03-14 Foldable incorporeal penetrating label using magnetic film Pending JP2003265062A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

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Publications (1)

Publication Number Publication Date
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Family

ID=29207901

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