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Crowding female red claw crayfish, Cherax quadricarinatus, under small-tanks hatchery conditions: What is the limit?
Year:
2000
Source of publication :
Aquaculture (source)
Authors :
ברקי, אסף
;
.
קרפלוס, אילן
;
.
Volume :
181
Co-Authors:
Barki, A., Department of Aquaculture, Institute of Animal Science, Agricultural Research Organization, P.O. Box 6, Bet Dagan 50250, Israel
Karplus, I., Department of Aquaculture, Institute of Animal Science, Agricultural Research Organization, P.O. Box 6, Bet Dagan 50250, Israel
Facilitators :
From page:
235
To page:
240
(
Total pages:
6
)
Abstract:
Previous studies on reproduction in the red claw crayfish, Cherax quadricarinatus, have successfully employed broodstock densities of up to 20 crayfish m-2. This study attempted to increase the density of broodstock in order to intensify production of young in indoor hatcheries. Adult crayfish were stocked in 0.3 m2 tanks at a 1:5 M:F sex ratio at three densities 6, 12 and 18 crayfish per tank (corresponding to 20, 40 and 60 m-2) The number of berried females was noted at weekly intervals during 14 weeks. There was no difference among densities in survival rate and percentage of spawning and molting, nor in clutch size (pleopodal egg counts) of females. The results indicated that breeding red claw females are insensitive to crowding over a wide range of densities They suggest that a broodstock density higher than 60 crayfish m-2 is feasible under indoor hatchery conditions.
Note:
Related Files :
Broodstock density, Crayfish
Cherax quadricarinatus
crustacean
Decapoda
hatchery
overcrowding
Reproduction
stocking density
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/S0044-8486(99)00235-5
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
20811
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:39
You may also be interested in
Scientific Publication
Crowding female red claw crayfish, Cherax quadricarinatus, under small-tanks hatchery conditions: What is the limit?
181
Barki, A., Department of Aquaculture, Institute of Animal Science, Agricultural Research Organization, P.O. Box 6, Bet Dagan 50250, Israel
Karplus, I., Department of Aquaculture, Institute of Animal Science, Agricultural Research Organization, P.O. Box 6, Bet Dagan 50250, Israel
Crowding female red claw crayfish, Cherax quadricarinatus, under small-tanks hatchery conditions: What is the limit?
Previous studies on reproduction in the red claw crayfish, Cherax quadricarinatus, have successfully employed broodstock densities of up to 20 crayfish m-2. This study attempted to increase the density of broodstock in order to intensify production of young in indoor hatcheries. Adult crayfish were stocked in 0.3 m2 tanks at a 1:5 M:F sex ratio at three densities 6, 12 and 18 crayfish per tank (corresponding to 20, 40 and 60 m-2) The number of berried females was noted at weekly intervals during 14 weeks. There was no difference among densities in survival rate and percentage of spawning and molting, nor in clutch size (pleopodal egg counts) of females. The results indicated that breeding red claw females are insensitive to crowding over a wide range of densities They suggest that a broodstock density higher than 60 crayfish m-2 is feasible under indoor hatchery conditions.
Scientific Publication
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