英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:

alevin    


安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • ALEVIN Definition Meaning - Merriam-Webster
    The meaning of ALEVIN is a young fish; especially : a newly hatched salmon when still attached to the yolk sac
  • Juvenile fish - Wikipedia
    This section details the stages and the particular names used for juvenile salmon Sac fry or alevin – The life cycle of salmon begins and usually also ends in the backwaters of streams and rivers These are their spawning grounds otherwise known as redds, where salmon eggs are deposited for among the gravels of stream beds [7]
  • Alevin - Salmon facts
    During the next month, the alevin will remain hidden in the gravel nest and feed from the nutrient-rich yolk sac until it is completely absorbed The yolk sacks contain protein, sugar, minerals, and vitamins
  • Life Stage Cheat Sheet - U. S. Fish and Wildlife Service
    The yolk sacs attached to the abdomen of alevin contain protein, sugar, minerals and vitamins that sustain the alevin as they learn to swim and navigate their aquatic environment
  • The Salmon Life Cycle - U. S. National Park Service
    Overview: The anadromous life history strategy of salmon plays a key role in bringing nutrients from the ocean back into rivers and the wildlife community Though it
  • What Is a Young Salmon Called? - Reference. com
    When a salmon egg hatches, the young is called an alevin and still depends on the yolk sac for nutrition After 5 or 10 weeks, the salmon is called a fry and begins to look like a typical fish After several months, when the fish has developed its tiger-like markings, it is known as a parr
  • What Are Young Salmon Called? The Names for Baby Salmon at Each Stage
    A salmon is called an alevin, a fry, a parr and a smolt before it is considered an adult It takes about four years for a salmon to reach maturity since it must go through many stages of growth before it can swim in salt water When a salmon egg hatches, the young is called an alevin and still depends on the yolk sac for nutrition
  • Alevin – Fishionary
    An alevin is a newly hatched salmon or trout that still has its yolk-sac attached The yolk-sac provides the alevin nourishment for the first 2-3 weeks after hatching
  • Atlantic salmon life cycle - Pêches et Océans Canada
    After hatching from the egg, the salmon is called an Alevin During this stage it remains hidden in the riverbed gravel, feeding from its attached yolk sac It's about 2 cm in length Wriggling up from the gravel, a FRY begins feeding on microscopic life in the stream It eventually reaches a length of 5 to 8 cm before maturing into a PARR
  • Alaska Salmon In The Classroom: Skein 6, Salmon Alevin
    Alevin The salmon embryo inside an egg hatches out to become an alevin (the A is pronounced AY as in play or AH as in cat) Wiggling energetically and releasing a little enzyme from its head, the embryo breaks through the egg membrane For the next month or two, it hides in the dark spaces in the gravel of its natal stream or lake





中文字典-英文字典  2005-2009