TY - JOUR
T1 - Brown shrimp (crangon crangon, L.) functional response to density of different sized juvenile bivalves macoma balthica (l.)
AU - Andresen, H.
AU - van der Meer, J.
PY - 2010
Y1 - 2010
N2 - Variability in infaunal bivalve abundance in the Wadden Sea is largely determined by recruitment variability. Post-settlement, but pre-recruitment bivalve mortality is high and related to the occurrence of their most abundant predator, the brown shrimp Crangon crangon. To investigate if the mortality patterns of newly settled bivalves can be explained by the foraging behavior of brown shrimp, we carried out experiments on shrimp functional response to three size classes of juveniles of the Baltic Tellin Macoma balthica. The functional response curves for all three prey sizes (0.62 mm, 0.73 mm, and 0.85 mm) were the hyperbolic Holling's type II. The attack rate was highest for the smallest prey size (a=0.31, medium and large prey a=0.22); the handling time was longest for the largest prey size (T
AB - Variability in infaunal bivalve abundance in the Wadden Sea is largely determined by recruitment variability. Post-settlement, but pre-recruitment bivalve mortality is high and related to the occurrence of their most abundant predator, the brown shrimp Crangon crangon. To investigate if the mortality patterns of newly settled bivalves can be explained by the foraging behavior of brown shrimp, we carried out experiments on shrimp functional response to three size classes of juveniles of the Baltic Tellin Macoma balthica. The functional response curves for all three prey sizes (0.62 mm, 0.73 mm, and 0.85 mm) were the hyperbolic Holling's type II. The attack rate was highest for the smallest prey size (a=0.31, medium and large prey a=0.22); the handling time was longest for the largest prey size (T
U2 - 10.1016/j.jembe.2010.04.027
DO - 10.1016/j.jembe.2010.04.027
M3 - Article
SN - 0022-0981
VL - 390
SP - 31
EP - 38
JO - Journal of Experimental Marine Biology and Ecology
JF - Journal of Experimental Marine Biology and Ecology
ER -