TY - JOUR
T1 - Gonadal development, spawning, growth and survival of the crayfish Procambarus llamasi at three different water temperatures
AU - Carmona-Osalde, Claudia
AU - Rodriguez-Serna, Miguel
AU - Olvera-Novoa, Miguel A.
AU - Gutierrez-Yurrita, Pedro Joaquin
N1 - Funding Information:
This research was supported by the National Council of Science and Technology (CONACyT) through a scholarship (No. Reg. 86192).
PY - 2004/4/5
Y1 - 2004/4/5
N2 - A study was done of the effect of three water temperatures (16, 21 and 26°C) on the growth, survival, gonad development and spawning rates of Procambarus llamasi during a 90-day trial. Juveniles (<40 mm total length) were stocked at 76 org/m2 density, and at a 1:1 M/F ratio. Growth improved in all treatments with increasing temperature, showing significant differences between sexes. Males grew more than females and achieved larger sizes with statistical differences (p<0.05) between treatments. Survival rate exhibited a negative relationship to temperature, with significant differences (p<0.05) between the 16°C treatment and the others, but not between the 21 and 26°C. Survival rate decreased from 90% at 16°C to 42% at 26°C. Ovary development increased as temperature increased. The gonadosomatic and maturation indexes were significantly different (p<0.05) between the 16°C treatment and the others, but not between the 21 and 26°C treatments. Spawning rate exhibited no relationship to temperature, with optimum results (22%) at 21°C.
AB - A study was done of the effect of three water temperatures (16, 21 and 26°C) on the growth, survival, gonad development and spawning rates of Procambarus llamasi during a 90-day trial. Juveniles (<40 mm total length) were stocked at 76 org/m2 density, and at a 1:1 M/F ratio. Growth improved in all treatments with increasing temperature, showing significant differences between sexes. Males grew more than females and achieved larger sizes with statistical differences (p<0.05) between treatments. Survival rate exhibited a negative relationship to temperature, with significant differences (p<0.05) between the 16°C treatment and the others, but not between the 21 and 26°C. Survival rate decreased from 90% at 16°C to 42% at 26°C. Ovary development increased as temperature increased. The gonadosomatic and maturation indexes were significantly different (p<0.05) between the 16°C treatment and the others, but not between the 21 and 26°C treatments. Spawning rate exhibited no relationship to temperature, with optimum results (22%) at 21°C.
KW - Gonadal development
KW - Procambarus llamasi
KW - Temperature
UR - http://www.scopus.com/inward/record.url?scp=1542321381&partnerID=8YFLogxK
U2 - 10.1016/S0044-8486(03)00527-1
DO - 10.1016/S0044-8486(03)00527-1
M3 - Artículo
SN - 0044-8486
VL - 232
SP - 305
EP - 316
JO - Aquaculture
JF - Aquaculture
IS - 1-4
ER -