TY - JOUR
T1 - Effects of adult stocking density on egg production and viability in cultures of the calanoid copepod Acartia tonsa (Dana)
AU - Jepsen, Per Meyer
AU - Andersen, Nikolaj
AU - Holm, Thue
AU - Jørgensen, Anders T.
AU - Højgaard, Jonas Kring
AU - Hansen, Benni Winding
PY - 2007
Y1 - 2007
N2 - The effect of stocking density of the calanoid copepod Acartia tonsa was evaluated in a 96 h rearing experiment. Possible density-dependent egg production and egg viability were analysed at stocking densities of 100, 200, 300, 400 and 600 adults L−1. Temperature, oxygen saturation and algal concentration were kept optimal. A non-density-dependent mortality rate of 15–19% day−1 was documented. A non-significant density-dependent egg production was observed between 100 and 600 adults L−1. The average egg production was 22.5±8.8 egg female−1 day−1 in all densities. The average egg hatching success was 84.7±4.8% and was never observed below 76.1%, with no significant differences across the stocking densities. Conclusively, as a practical recommendation for the aquaculture industry, copepod cultures with densities ranging from 100 to 600 adults L−1 and presumably even more dense cultures are possible with the studied species obtaining a steady egg production and still high egg viability.
AB - The effect of stocking density of the calanoid copepod Acartia tonsa was evaluated in a 96 h rearing experiment. Possible density-dependent egg production and egg viability were analysed at stocking densities of 100, 200, 300, 400 and 600 adults L−1. Temperature, oxygen saturation and algal concentration were kept optimal. A non-density-dependent mortality rate of 15–19% day−1 was documented. A non-significant density-dependent egg production was observed between 100 and 600 adults L−1. The average egg production was 22.5±8.8 egg female−1 day−1 in all densities. The average egg hatching success was 84.7±4.8% and was never observed below 76.1%, with no significant differences across the stocking densities. Conclusively, as a practical recommendation for the aquaculture industry, copepod cultures with densities ranging from 100 to 600 adults L−1 and presumably even more dense cultures are possible with the studied species obtaining a steady egg production and still high egg viability.
U2 - 10.1111/j.1365-2109.2007.01730.x
DO - 10.1111/j.1365-2109.2007.01730.x
M3 - Journal article
SN - 1355-557X
VL - 38
SP - 764
EP - 772
JO - Aquaculture Research
JF - Aquaculture Research
IS - 6
ER -