Nutrient limitation of primary producers affects planktivorous fish condition

Arne Michael Malzahn, Nicole Aberle, Catriona Clemmesen, Maarten Boersma

Research output: Contribution to journalArticle

95 Citations (Scopus)

Abstract

We investigated whether nutrient limitations of primary producers act upward through food webs only in terms of density effects or if there is a second pathway for nutrient limitation signals channelled upward to higher trophic levels. We used tritrophic food chains to assess the effects of nutrient-limited phytoplankters (the cryptophyte Rhodomonas salina) on herbivorous zooplankters (the calanoid copepod Acartia tonsa) and finally zooplanktivores (larval herring Clupea harengus) living on the herbivores. The primary producers' food quality had a significant effect on fish condition. Our experimental phosphorus-limited food chain resulted in larval fish with a significantly poorer condition than their counterparts reared under nitrogen-limited or nutrient-sufficient conditions. Our results show that mineral nutrient requirements of consumers have to be satisfied first before fatty acids can promote further growth. This challenges the match/mismatch hypothesis, which links larval fish survival probability solely to prey availability, and could imply that reduced nutrient releases into the environment may affect fish stocks even more severely than previously believed.

Original languageEnglish
Pages (from-to)2062-2071
Number of pages10
JournalLimnology and Oceanography
Volume52
Issue number5
Publication statusPublished - Sep 2007

ASJC Scopus subject areas

  • Oceanography
  • Aquatic Science

Fingerprint Dive into the research topics of 'Nutrient limitation of primary producers affects planktivorous fish condition'. Together they form a unique fingerprint.

  • Cite this

    Malzahn, A. M., Aberle, N., Clemmesen, C., & Boersma, M. (2007). Nutrient limitation of primary producers affects planktivorous fish condition. Limnology and Oceanography, 52(5), 2062-2071.