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New research has provided surprising details about the biology of Earth's largest fish, the whale shark.
Scientists say that female whale sharks grow more slowly but reach a much larger size than males.
Researchers recently said they had followed the growth of 54 whale sharks over 10 years.
The creatures swam in the Ningaloo Reef off of Australia's west coast, where hundreds of the rare fish travel every year.
Whale sharks of both sexes were found to have their fastest growth while young ― about 20 to 30 centimeters per year.
Males were found to grow faster than females. They reached around eight meters in length at about 30 years old.
At that age, they reach sexual maturity, meaning the fish were able to produce young.
Females grew larger than males. Females reached about 14 meters at about age 50, when they reached sexual maturity.
Mark Meekan is a marine biologist at the Australian Institute of Marine Science. He led the research that was published in Frontiers in Marine Science.
新研究提供了关于地球上最大鱼类鲸鲨生物学方面令人意外的细节。
科学家表示,雌性鲸鲨的生长速度较慢,但是体型比雄性鲸鲨更大。
研究人员最近表示,他们在10年时间里追踪了54头鲸鲨的生长情况。
这些生物在澳大利亚西海岸的宁格鲁礁游动,每年有数百种珍稀鱼类在这里游动。
研究发现雄性和雌性鲸鲨年幼时都生长得很快,每年能长大约20-30厘米。
人们发现,雄性鲸鲨比雌性鲸鲨的生长速度更快。它们在30岁左右身长能达到8米。
它们在这个年龄达到性成熟,这意味着它可以繁殖后代。
雌性鲸鲨的体型比雄性鲸鲨大。雌性在50岁左右时达到性成熟,身长能够达到14米。
马克・米肯(Mark Meekan)是澳大利亚海洋科学研究所的海洋生物学家。他领导了这项研究,该研究结果发表在《海洋科学前沿》上。
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