Selection of sites for egg depostion and spawning dynamics in the waccamaw darter
93 experimental spawning covers for the waccamaw darter were provided. The covers (3 sizes of slate and one of concave tile) were grouped 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 m...
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Format: | Tagungsbericht |
Sprache: | eng |
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Zusammenfassung: | 93 experimental spawning covers for the waccamaw darter were provided. The covers (3 sizes of slate and one of concave tile) were grouped 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 singificantly 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 positivety correlated with male size. It was concluded 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. |
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ISSN: | 0378-1909 |