I've just started growing daphnia at home. I've got two populations in glass containers: one indoor set-up with a bubbler and artificial light; and the other set-up outdoors in the sun and the wind.
My question is what temperature range is survivable? I'm in New Zealand and it does get cold here in the winter. I'd expect down to maybe -3°C on the coldest nights. It won't freeze the container solid, but it would chill the water to zero - I guess there is some risk of skinning over with ice and losing oxygen exchange.
Would you expect the outdoor group to survive? Should I bring them in when it starts getting colder?
Any advice appreciated
My question is what temperature range is survivable? I'm in New Zealand and it does get cold here in the winter. I'd expect down to maybe -3°C on the coldest nights. It won't freeze the container solid, but it would chill the water to zero - I guess there is some risk of skinning over with ice and losing oxygen exchange.
Would you expect the outdoor group to survive? Should I bring them in when it starts getting colder?
Any advice appreciated