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小不點 asked in 社會與文化語言 · 1 decade ago

幫翻譯 很難 這是有關於水產的

Stingrays are char-acterized by the presence of one to three mineralized

stingers (modified barbed spines) in the tail ,

which is covered by epidermal cells secreting venom

The exact localization of this tissue is controversial,

but it is known that it is preferentially located in

the stinger ventrolateral grooves

Because stingrays are commonly found in the sea or

river shores, hidden in the sand, they frequently

cause accidents, mainly in the feet and ankles, when

people step on them. Hands can also be affected,

mainly of fishermen when manipulating fishing

nets .

Accidents are caused by a defensive whip reflex

mechanism of the tail in which the stinger is

introduced into the aggressor, causing severe

mechanical injuries and, at the same time, liberating

the venom .

There is no specific serum therapy for these

accidents . The patients

face intense local pain, oedema and erythema.

Bacterial secondary infection is also common. In

addition, accidents involving freshwater stingrays

frequently cause a persistent cutaneous necrosis

, which is related to differences observed

in the biological activities of the venom of

marine and freshwater stingrays . Although the toxinology of stingrays is a

relevant subject due to the high frequency of

accidents, the literature about the morphology of

the venom apparatus of these animals is very scarce

In this paper, a comparative morphological

analysis of the stinger epidermal tissue of Brazilian

marine and freshwater stingrays of different species

was carried out in an attempt to verify characteristic

patterns in the distribution of venom secretory

epidermal cells in these two groups. The compara-

tive analysis of the results indicates significant

differences between the stingers of marine species

and freshwater species of the Potamotrygon genus.

These differences can justify the more severe

envenomation accidents caused by specimens be-

longing to this genus when compared with accidents

caused by the marine species.

請幫幫忙吧 我翻的亂糟糟呢! 只要翻出大概意思就好

PS 只是要翻成中文 老師講解會比較懂

Update:

太感謝拉><

雖然我有翻出來 可是整個就是怪 應該說湊不起來的感覺

你幫了大忙^^

2 Answers

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  • 1 decade ago
    Favorite Answer

    魟魚是一種尾部有著1到3根已礦化的毒刺,其表皮細胞分泌著毒液的一種魚。

    此組織的準確位置是有爭議的,但已知它優先位於魟魚腹部外側的溝槽。因為魟魚常在海中或河岸中被發躲藏於沙子中,他們時常導致意外,主要是在腳上或腳踝,在人們踏到它們時。手部也會受到影響,主要對像是漁民,在他們操作漁網時。

    意外通常是由尾部的防禦鞭反射機制所造成,毒刺會刺進挑釁者身上,引起幾個機械性傷害,同時間,釋放出毒液。沒有特定的血清可治療這種意外。病患會面臨強烈的局部疼痛,浮腫和紅斑。

    細菌的續發感染也是很常見。另一方面,意外由淡水魟引起時,經常導致

    持久性的表皮壞死,其中有一項在海水魟和淡水魟毒液生物活性上的差異被觀察到。然而魟魚的毒素學是有意義的主題由於事故高頻率的發生,關於這種動物毒器形態學的文章非常的少。

    在這份文獻上,巴西不同種類的海水及淡水魟魚,其毒刺表皮組織的比較形態分析,是在試圖驗證此二族群其表皮細胞分泌毒液的特徵模式。這個結果的比較分析指出Potamotrygon屬海水種及淡水種魟魚明顯的不同之處。

    這些差異可以證明更嚴重的毒液螫入意外是由本屬的種類所造成的,在和其它海洋種類所導致的事件做比較時。

    Source(s): 曾經接觸過魟魚
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  • 5 years ago

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