Abstract
The four domestic Chinese carps, i.e. grass carp (Ctenopharyngodon idella), black carp (Mylopharyngodon piceus), silver carp (Hypophthalmichthys molitrix) and bighead carp (Hypophthalmichthys nobilis), cast their drifting eggs in the running water of the Yangtze River. In 1997 ~ 2005, a systematic study on the dynamics of the abundance the larvae of the four domestic Chinese carps was performed in the middle reach of the Yangtze River, close to Sanzhou city. It was calculated that in breeding seasons from early May to late June every year the abundance of fry drifting through the section of Sanzhou was 3.59 billion in 1997, 2.75 billion in 1998, 2.15 billion in 1999, 2.85 billion in 2000, 1.90 billion in 2001, 1.90 billion in 2002, 406 million in 2003, 339 million in 2004 and 105 million in 2005 respectively. Several environmental parameters related to the dynamics of larval abundance were also examined simultaneously. The construction of the Three Gorges Dam near Yichang between the upper and middle reaches of the Yangtze River has apparently had a drastic influence on the abundance of fish larvae.
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Duan, X. et al. (2009). Changes in abundance of larvae of the four domestic Chinese carps in the middle reach of the Yangtze River, China, before and after closing of the Three Gorges Dam. In: Noakes, D.L.G., Romero, A., Zhao, Y., Zhou, Y. (eds) Chinese Fishes. Developments in Environmental Biology of Fishes, vol 28. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-3458-8_3
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DOI: https://doi.org/10.1007/978-90-481-3458-8_3
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