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2006-05-18

ヤマト Evolution

Evolution・・・進化

それは 古代から様々な学者が挑んできた課題ですね。

「進化論」のダーウィン、「遺伝学」のメンデル、「突然変異」のド・フリース。。。

アクアリウムの世界でも、グッピーやレッドビーの交配などで話が出てきますね。

 

まぁ、この進化に関しては あまり深く語ってはいけない分野でもあると思うんです。

優勢が出てくれば劣勢も出てくる。それにより生じる差別・・・そんな倫理的な問題。

人間が手を加えて新種を作ってしまう・・・そんな宗教的な問題。

言いたい事は色々ありますが・・・今回は 中立的な立場とさせてください(願)

 

さて、今日は熱帯魚の進化についてお話を。

熱帯魚関連で言えば 肺魚やブラインシュリンプなんかが有名ですね。

穴を掘って乾季を過ごしたり、乾燥卵でいつでも孵化できる状態であったり・・・。

乾燥地帯で子孫を残すための 必然的な進化と言えるでしょう。

 

ウチで飼育しているものでも、「ポポンデッタフルカタ」なんかがそうですね。 

本来は海水魚であった ポポンデッタフルカタ。

地動や天候によって地形が変わり、海水→汽水→淡水へと生活の場を変えていった魚です。

ですから、本来はアルカリ性の水のほうが 調子が良いのだそうで。。。

・・・ポポン、ゴメンなぁ(ウチは弱酸性)

 

さて そんな「進化」ですが、起こるのは自然界だけでは無いようです。

 

まず、こちらをご覧ください。

お馴染みの「ヤマトヌマエビ」ですが・・・いつもは こーんな渋い顔。

Yamato01  

 

 

 

 

 

 

 

 

クールにお掃除をする姿も素敵。

2006031813  

 

 

 

 

 

 

 

 

でも、ある日 アベニーマンションの注水パイプを見てみると。。。

200605171  

 

 

 

 

 

 

 

200605172  

 

 

 

 

 

 

 

・・・打たせ湯?

 

これ、挟まっている訳でもなく、逃げている訳でもありません。

自ら 水面に上がってきたのです。

そして まった~りと過ごしているんです。

 

ヤマトヌマエビの進化の過程なんだろうか?

そろそろ 水上生活でもするの?

 

・・・そのうち 床でカラカラに乾いたヤマトを見る日は 無くなるカモ?(笑)

 

 

ブログランキングでお友達探し♪

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コメント

ヤマトタケル!
うちのモエビは、ダトニオに対して素直に食べられることはしません、ものすごく威嚇します!
アメザリのようにハサミを大きく上に出して勇ましいんですが、最後はダトニオが戦艦ヤマトの如しイキオイで...

投稿: ドルコラ理事長 | 2006-05-18 22:17

っていうかこの目はいったいなんですか?(爆笑)
いつの間に白目ができたんだろう、これも進化か?!

投稿: 38brain | 2006-05-18 22:25

ヤマトくんの打たせ湯!かわいいですね。
うちのレッドビーたちもチドメ草の上で
半分水上に出ていることがあります。
なにか楽しいことあるんでしょうね♪
こちらはギョっとしますが~~

投稿: keiko | 2006-05-19 07:14

うちのヤマト君も背中を水から出してシャワーパイプをツマツマしてたりします。
乾かないのかな~って思いますけどね。
エビもじっと眺めてるといろんな面白いことしてくれますよね。
そんな風にニヤニヤしながら水槽をじっと眺めてるおいらを眺める方が面白そうですが(苦笑)

投稿: おまつ | 2006-05-19 10:03

打たせ湯ですか。
もしかしたらエビとしての進化を真剣に考えた「修行」かも知れませんよ・・・?!

投稿: 直様 | 2006-05-19 12:48

こんにちは。
打たせ湯ですか、ヤマトさんスゴすぎです(^^)
水槽脱出してその辺ツマツマしてたら怖いです(>_<)
寝ている時に顔の上を…(;゚Д゚)…!!

投稿: aquafox | 2006-05-19 15:47

★彡 ドルコラ理事長さん
・・・結局「ご馳走様」ですか(汗)
でも、その姿がかっちょいいですね。
(BGMは長渕で♪)

★彡 38brainさん
あ、ホントだ~!
めっちゃギョロっとしてますね♪
・・・気付かなかった。
多分、これも進化です。ハイ。

★彡 keikoさん
乾燥する寸前のスリルが好きなんですかねぇ?
「パリパリする殻が 気持ち良い」とか言ってるんでしょうか?
それとも、夏に向けて 日焼け中?(笑)

★彡 おまつさん
エビちゃん←おまつさん←でむちんってニヤニヤを繰り返す。
彦麻呂風に言えば「微笑みのリサイクルやぁ!」ってトコでしょうか?
・・・キモさのリサイクル?(笑)

★彡 直様さん
何かを悟ってくれたんでしょうか?
・・・とりあえず、乾燥しなくても良いから コケ食べてくれ。
進化って 時としていぢわる。

★彡 aquafoxさん
そうそう、寝ている間に毛穴を綺麗にしてくれて、
朝起きたら ピカピカお肌に。。。
・・・それはそれで、繁殖させますよ♪
ヤマトの地位が確実に向上しますよね?
・・・気持ち良いかは別として。

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