TY - JOUR
T1 - Diel vertical migration of the deep-water jellyfish Periphylla periphylla simulated as individual responses to absolute light intensity
AU - Dupont, Nicolas
AU - Klevjer, Thor Aleksander
AU - Kaartvedt, S.
AU - Aksnes, D. L.
PY - 2009/9
Y1 - 2009/9
N2 - We evaluate the hypothesis that the vertical migration of Periphylla periphylla is governed by its sensitivity to light intensity. By applying an individual-based model where random walk is combined with assumed individual responses to light, we compare the predicted vertical distributions with acoustical observations. Important features of the observed P. periphylla distributions can be explained by a simple proximate light response where individual P. periphylla avoids light above a certain threshold but also has a preference for very low light intensities. In addition to accounting for the observed synchronous diel vertical migration phenomenon in P. periphylla, this simple mechanism also accounts for simultaneous asynchronous vertical migrations observed for part of the population.
AB - We evaluate the hypothesis that the vertical migration of Periphylla periphylla is governed by its sensitivity to light intensity. By applying an individual-based model where random walk is combined with assumed individual responses to light, we compare the predicted vertical distributions with acoustical observations. Important features of the observed P. periphylla distributions can be explained by a simple proximate light response where individual P. periphylla avoids light above a certain threshold but also has a preference for very low light intensities. In addition to accounting for the observed synchronous diel vertical migration phenomenon in P. periphylla, this simple mechanism also accounts for simultaneous asynchronous vertical migrations observed for part of the population.
UR - http://www.scopus.com/inward/record.url?scp=67949118661&partnerID=8YFLogxK
U2 - 10.4319/lo.2009.54.5.1765
DO - 10.4319/lo.2009.54.5.1765
M3 - Article
AN - SCOPUS:67949118661
SN - 0024-3590
VL - 54
SP - 1765
EP - 1775
JO - Limnology and Oceanography
JF - Limnology and Oceanography
IS - 5
ER -