- 更多网络例句与多鳍鱼类的鱼相关的网络例句 [注:此内容来源于网络,仅供参考]
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Seventeen species of fish were identified in the diet. The most numerous were chub Leuciscus cephalus and roach Rutilus rutilus.
在其食物中共鉴别出17种鱼类,其中数量最多的是圆鳍雅罗鱼和拟鲤。
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Included here are fishes having either a bony skeleton, such as a perch, or a cartilaginous skeleton, such as a shark, or those lacking a jaw, such as a lamprey or hagfish.
以具有鳍及用腮呼吸为特征的一种冷血水上脊椎动物,包括多骨骼鱼类,如河鲈;或软骨鱼类,如鲨鱼;或无颚鱼类,如七鳃鳗或八目鳗类鱼
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The Plainfin Midshipman is one of several fish species, which make sounds, but its recital can go on for up to an hour.
平鳍美洲蟾鱼是少数几种能够发声的鱼类之一,它的独奏能持续一个多小时。
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Importantly, recent analyses8 have begun to reveal new relationships between early vertebrates, in which acanthodians and placoderms are scattered among the early divisions of gnathostome evolution; acanthodians, in particular, are cropping up on chondrichthyan and osteichthyan stem groups.
有颌类包括硬骨鱼类以及软骨鱼类。软骨鱼类仅占有颌类物种数的2%,其余98%的有颌类都属于硬骨鱼类。在硬骨鱼类中,大约一半是辐鳍鱼类,剩余的统称肉鳍鱼类。辐鳍鱼类包括从斑马鱼到多鳍鱼的大约2万8千个种。
- 更多网络解释与多鳍鱼类的鱼相关的网络解释 [注:此内容来源于网络,仅供参考]
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albacore tuna:长鳍金枪鱼
然而,这些妇女应避免吃含高含量甲基汞(Methyl mercury)的鱼类,如剑鱼 (swordfish)及长鳍金枪鱼(albacore tuna),因为汞能通过工业污染在鱼体内积累,即使摄取不多,食用后会导致胎儿和儿童出现神经和发育性问题.
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Polypterus bichir:多鳍鱼
主要种类为具有腹鳍的多鳍鱼(Polypterus bichir)和体形似鳗而腹鳍退化的芦鳗(Calamoichthys congicus)等. 多鳍鱼类全产在非洲热带河流中,栖于水下的泥底,性情凶猛,以小鱼、甲壳动物、昆虫为食;当河湖接近干涸时,可用鳔直接呼吸空气.
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Polypteridae:多鳍鱼科
多鳍鱼目(Polypteriformes)多鳍鱼科(Polypteridae)多鳍鱼属(Polypterus)约10种热带非洲鱼类的统称. 与芦鳗同属一科,或将多鳍鱼与鱘......海草海草(Seagrass) 海草是指生长于温带、热带近海水下的单子叶高等植物.