重捕魚數 的英文怎麼說
中文拼音 [zhòngbǔyúshǔ]
重捕魚數
英文
number of fish recaptured-
The purpose of this subject deals with the biological characters of megalobrama skolkovii dybowsky according to the results of convey of nature resource in heilongjiang waters, capture and transportation of brood fish, outer appearance, study of countable and measurable characters and all inner system, analysis of muscle composition, study of chromosome, and discuss the classification status, and also carried out the artificial fertilization
本課題通過對黑龍江魴進行資源調查、親魚采捕和運輸、外部形態、外部可數及可量性狀和內部各系統的研究、肌肉成分的分析、染色體的研究等實驗,重點研究黑龍江魴的生物學特性,並對黑龍江魴的分類地位進行了探討,同時對黑龍江魴進行了人工繁殖。The massive over - fishing of the largest predatory sharks in the coastal waters of the atlantic over the past 30 - some years has led to an explosion in the ray, skate and small shark species that they prey on, with devastating effects for one of the organisms at the bottom of the food chain
過去卅年來,大西洋沿海大型掠食性鯊魚遭過度捕釣,導致?魚、鰩魚與小鯊魚等獵物的數量激增,對食物鏈底端的一種生物造成嚴重沖擊。
分享友人