caa a22 4500 606227741 CHVBK 20210128101200.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s10641-014-0345-5 doi (NATIONALLICENCE)springer-10.1007/s10641-014-0345-5 Relationships between feeding, growth and swimming activity of European sprat ( Sprattus sprattus L.) post-larvae in the laboratory [Elektronische Daten] [Myron Peck, Bianca Ewest, Jens-Peter Herrmann, Fahad Al-Misned, M. Mortuza, Sven Stäcker, Axel Temming] Despite their trophodynamic importance in many aquatic ecosystems, few studies have quantified the feeding-growth relationship of clupeid fishes. In laboratory trials, we quantified the relationship between rates of food consumption (C, % fish energy content (Joules d−1)), somatic growth rate (G, % Joules d−1), and swimming speed (S S, body lengths (bl) s−1) for post-larval (30- to 50-mm standard length) European sprat (Sprattus sprattus L.) collected from the southwestern Baltic Sea. Measurements of G and S S were also made on groups before and after an abrupt shift in prey availability. Maintenance (0-growth) and maximum food consumption rates were 5.5 and 42% somatic energy content d−1, respectively. Mean ± SE gross growth efficiency (K 1 = 100∙G∙C −1 ) was 26.9 ± 3.0%. Unfed post-larvae had markedly lower S S compared to continuously-fed fish (0.1 versus 0.5 to 0.7 bl s−1). After 10days of re-feeding, one group of previously unfed fish was hyperactive (mean S S of 1.2 bl s−1) but no re-fed groups exhibited hyperphagia (based upon prey numbers), increased K 1, or compensatory growth. Increased competition (relatively high S S) was evident during feeding in fish maintained at low to moderate but not at ad libitum prey levels. Our findings provide estimates of prey resources required to fuel in situ growth and help characterize metabolic strategies of European sprat within variable feeding environments. Springer Science+Business Media Dordrecht, 2014 Feeding nationallicence Growth nationallicence Swimming nationallicence Sprattus sprattus nationallicence Clupeid nationallicence Post-larvae nationallicence Peck Myron Institute for Hydrobiology and Fisheries Science, University of Hamburg, Olbersweg 24, 22767, Hamburg, Germany aut Ewest Bianca Institute for Hydrobiology and Fisheries Science, University of Hamburg, Olbersweg 24, 22767, Hamburg, Germany aut Herrmann Jens-Peter Institute for Hydrobiology and Fisheries Science, University of Hamburg, Olbersweg 24, 22767, Hamburg, Germany aut Al-Misned Fahad Department of Zoology, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia aut Mortuza M. Department of Zoology, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia aut Stäcker Sven Institute for Hydrobiology and Fisheries Science, University of Hamburg, Olbersweg 24, 22767, Hamburg, Germany aut Temming Axel Institute for Hydrobiology and Fisheries Science, University of Hamburg, Olbersweg 24, 22767, Hamburg, Germany aut Environmental Biology of Fishes Springer Netherlands 98/4(2015-04-01), 1117-1127 0378-1909 98:4<1117 2015 98 10641 https://doi.org/10.1007/s10641-014-0345-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10641-014-0345-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Peck Myron Institute for Hydrobiology and Fisheries Science, University of Hamburg, Olbersweg 24, 22767, Hamburg, Germany aut NATIONALLICENCE 700 1- Ewest Bianca Institute for Hydrobiology and Fisheries Science, University of Hamburg, Olbersweg 24, 22767, Hamburg, Germany aut NATIONALLICENCE 700 1- Herrmann Jens-Peter Institute for Hydrobiology and Fisheries Science, University of Hamburg, Olbersweg 24, 22767, Hamburg, Germany aut NATIONALLICENCE 700 1- Al-Misned Fahad Department of Zoology, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia aut NATIONALLICENCE 700 1- Mortuza M. Department of Zoology, College of Science, King Saud University, 11451, Riyadh, Saudi Arabia aut NATIONALLICENCE 700 1- Stäcker Sven Institute for Hydrobiology and Fisheries Science, University of Hamburg, Olbersweg 24, 22767, Hamburg, Germany aut NATIONALLICENCE 700 1- Temming Axel Institute for Hydrobiology and Fisheries Science, University of Hamburg, Olbersweg 24, 22767, Hamburg, Germany aut NATIONALLICENCE 773 0- Environmental Biology of Fishes Springer Netherlands 98/4(2015-04-01), 1117-1127 0378-1909 98:4<1117 2015 98 10641