NIPPON SUISAN GAKKAISHI
Online ISSN : 1349-998X
Print ISSN : 0021-5392
ISSN-L : 0021-5392
Originals
Survival, growth, density and standing stock of underyearling white-spotted charr Salvelinus leucomaenis from eyed eggs stocked in a Japanese mountain stream
TOMOYUKI NAKAMURATAKAHIDE DOI
Author information
JOURNAL FREE ACCESS

2009 Volume 75 Issue 2 Pages 198-203

Details
Abstract
  We stocked eyed eggs of the white-spotted charr Salvelinus leucomaenis in fish-uninhabited reaches of the Kirizushisawa Stream of Kinu River, Tone River System, central Japan in January 2005 and 2006 using the Vibert box technique and surveyed the incubation rate, survival rate, growth, density and standing stock of the underyearling charr from the eyed eggs between August and November. In each year, the incubation rates were 93.2 and 99.0% and survival rates from eyed egg to November were 5.6 and 3.6%. The average standard length and body weight were 57.4 mm, 3.8 g and 60.3 mm, 3.8 g, and density and standing stock per 1 m2 water surface were 0.67 fish, 2.6 g and 0.48 fish, 1.8 g in November for each year, respectively. The number of eggs/fish decreased exponentially from January to November in both years.
Content from these authors
© 2009 by The Japanese Society of Fisheries Science
Previous article Next article
feedback
Top