Effects of copepod density and water exchange on the egg production of Acartia tonsa Dana (Copepoda: Calanoida) feeding on Rhodomonas baltica

dc.contributor.advisor	Olsen, Yngvar	nb_NO
dc.contributor.advisor	Evjemo, Jan Ove	nb_NO
dc.contributor.author	Salveson, Erik	nb_NO
dc.date.accessioned	2014-12-19T13:13:06Z
dc.date.available	2014-12-19T13:13:06Z
dc.date.created	2013-07-15	nb_NO
dc.date.issued	2013	nb_NO
dc.identifier	637036	nb_NO
dc.identifier	ntnudaim:10231	nb_NO
dc.identifier.uri	http://hdl.handle.net/11250/245260
dc.description.abstract	In this study, the objective was to investigate the effect of different copepod densities and the water exchange rate day-1 on the egg production of Acartia tonsa feeding on Rhodomonas baltica. It was a main task to find the best conditions for a maximum egg production in a large scale production system. The egg production under 3 different copepod densities (5, 8-10 and 20-53 ind/ml) and with water exchange rates of 100 and 500 % day-1 were tested. In addition, other variables like ammonia, temperature (20 °C), pH (8), salinity (24-34 ), dissolved 02 (> 5 mg/L) were measured and controlled if possible. Hatching success, female ratio, eggs per female and different consumption tests were measured.	nb_NO
dc.language	eng	nb_NO
dc.publisher	Institutt for biologi	nb_NO
dc.title	Effects of copepod density and water exchange on the egg production of Acartia tonsa Dana (Copepoda: Calanoida) feeding on Rhodomonas baltica	nb_NO
dc.type	Master thesis	nb_NO
dc.source.pagenumber	52	nb_NO
dc.contributor.department	Norges teknisk-naturvitenskapelige universitet, Fakultet for naturvitenskap og teknologi, Institutt for biologi	nb_NO