Food quality dominates the impact of food quantity on Daphnia life history: possible implications for re-oligotrophication

TY - JOUR

T1 - Food quality dominates the impact of food quantity on Daphnia life history: possible implications for re-oligotrophication

AU - Sarpe, D.

AU - De Senerpont Domis, L.N.

AU - Declerck, S.A.J.

AU - Van Donk, E.

AU - Ibelings, B.W.

N1 - Reporting year: 2014 Metis note: 5669, AqE

PY - 2014

Y1 - 2014

N2 - The elemental composition of phytoplankton is highly variable compared to the relatively narrow stoichiometry of zooplankton grazers. Using a full factorial design, we tested the effects of alterations in algal elemental composition (i.e., food quality) combined with food quantity on the life history of a Daphnia galeata clone from Lake IJsselmeer. Lower food quality reduced survival, growth, and reproduction. Food quantity became important at high food quality only. The strong effect of food quality indicates the potential for a stoichiometric bottleneck in Lake IJsselmeer, resulting in less high quality food for higher trophic levels as a result of re-oligotrophication.

AB - The elemental composition of phytoplankton is highly variable compared to the relatively narrow stoichiometry of zooplankton grazers. Using a full factorial design, we tested the effects of alterations in algal elemental composition (i.e., food quality) combined with food quantity on the life history of a Daphnia galeata clone from Lake IJsselmeer. Lower food quality reduced survival, growth, and reproduction. Food quantity became important at high food quality only. The strong effect of food quality indicates the potential for a stoichiometric bottleneck in Lake IJsselmeer, resulting in less high quality food for higher trophic levels as a result of re-oligotrophication.

KW - NIOO

U2 - 10.5268/IW-4.4.701

DO - 10.5268/IW-4.4.701

M3 - Article

SN - 2044-2041

VL - 4

SP - 363

EP - 368

JO - Inland Waters

JF - Inland Waters

IS - 4

ER -