首页 | 本学科首页   官方微博 | 高级检索  
     


Selection of sites for egg deposition and spawning dynamics in the waccamaw darter
Authors:Lindquist  David G.  Shute  John R.  Shute  Peggy W.  Jones  L. Michael
Affiliation:(1) Department of Biological Sciences, University of North Carolina-Wilmington, NC, 28406, U.S.A.;(2) Present address: Department of Zoology, University of Tennessee, Knoxville, TN, 37916, U.S.A.
Abstract:Synopsis We provided 93 experimental spawning covers for the waccamaw darter. We grouped the covers (3 sizes of slate and one of concave tile) in three arrangements at six Lake Waccamaw locations to separate the variables of water depth, distance from shore, cover density and cover type. Tag returns of marked males suggest low fidelity for nest sites. Egg production under the 3 different sizes of slate was not significantly different. Egg production under the tile was significantly less than that under the slates. Egg production was significantly higher off the undeveloped southeastern shore in 2 m of water and lowest at the shallowest location with the highest experimental cover density. The number of eggs in nest is positively correlated with male size. We conclude that medium size slate covers placed in a linear arrangement in 2 m of water on a mixed sand bottom result in the highest egg production for the waccamaw darter.
Keywords:Experimental spawning cover  Breeding season  Nest choice  Nest fidelity  Nest egg number  Nest quality  Male and female size  Fish  Percids
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号