Longnose lancetfish for ocean pollution ミズウオ

Fishs

Longnose lancetfish(Alepisaurus ferox)is a deep-sea fish that lives between 900 and 1500 meters, and its body length is 1.5 to 2.2 meters. It has a large mouth with fangs and can swallow other fish whole in the deep sea. The fangs are not used to cut the prey, but rather serve as a cage to prevent the captured prey from escaping.

It used to be a treasure trove of deep-sea fish research. Because waterfish are slow to digest, their stomachs yielded many valuable specimens, including other deep-sea fish that had been swallowed whole.

ミズウオは900∼1500mに生息する深海魚で体長は1.5∼2.2mです。大きな口に牙を備え深海の他の魚を丸呑みにします。牙は獲物を切り裂くために使われているわけではなく、捕えた獲物を逃がさない檻のような役目を果たしている。

かつては深海魚の研究の宝庫でした。なぜならミズウオは消化が遅いので胃からは、丸呑みされた他の深海魚など貴重な標本が沢山得られたからです

fangs serve as a cage to prevent the captured prey from escaping.

Unfortunately, recently, plastic products such as plastic bags have often been found in the stomachs of longnose lancetfish, and these have become important specimens for understanding the reality of ocean pollution. The indigestible chemical products swallowed by the Longnose lancetfish’s voracious nature are making them weak.

残念ながら最近は、ミズウオの胃の中からビニール袋などのプラスチック製品がしばしば見つかり、海洋汚染の実態を知る上で重要な標本となってしまいました。ミスウオの貪欲な性質によって飲み込まれた消化できない化学製品が、ミズウオを衰弱させています。

Longnose lancetfish live in the deep sea, but may come up to shallow water at night or in the winter when the surface water temperature drops. Weak individuals were washed ashore and captured. If you live in Shizuoka Prefecture, if you take a walk along the coast early in the morning, you might find a dead longnose lancetfish washed up on the shore.

ミズウオは深海で生活してますが、表層水温の下がる夜間や冬季には浅海に上がってくることがあります。弱った個体が浜辺に打ち上げられ捕獲されたりしました。静岡県に住んでいるなら、朝早く海岸を散歩すれば海岸に打ち上げられたミズウオの死体を発見できるかもしれません。

Longnose lancetfish have become specimens for understanding the ocean pollution.

I too have been lucky enough to find a longnose lancetfish on the beach early in the morning. Longnose lancetfishare slow to digest, so by cutting open their stomachs with a knife, I was able to observe small deep-sea fish.

わたしも朝早く起きて海岸で運よくミズウオを見つけたことがある。ミズウオは消化が遅いのでナイフでお腹を割いて見ると小型の深海魚を観察できました。

ミズウオの筋肉には水分と脂肪分が多量に含まれ、煮たり焼いたりすると水分が抜けて肉が縮み、溶けてしまうかのようになる。「ミズウオ」という名前の由来はここからきいる


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