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Session
2
Ecological interactions: Links to upper and lower trophic levels
Co-Convenors:
Sanae Chiba (Research Institute for Global Change,
JAMSTEC, Japan)
Enric Saiz (Institut de Ciencies del Mar, Spain)
Invited Speaker:
Diana Stoecker (University of Maryland Center
for Environmental Science, USA)
Zooplankton play a key role in the pelagic realm
as a major link between primary producers and higher trophic levels,
either directly or indirectly via protozooplankton, therefore being
subject to either bottom-up and top-down control. Regionally-specifc
differences in food web structure and ecological interactions between
trophic levels largely influencenot only the biological productivity
but also the biogeochemical processes acting in the region, such as
the efficiencyof the biological carbon pump. Recent studies have reported
sound changes in zooplankton communities responding to various climatic
and anthropogenic forcing, such as species diversity and size composition,
seasonality, geographical distribution, etc., yet the mechanisms and
consequences of those changes in terms of the functioning of the system
and biogeochemical processes in the water column have not been fully
investigated. In this session we aim for a better understanding of the
complexity of the trophic interactions mediated by micro- and mesozooplankton,
either as prey or as predator, in marine food webs, and in particular
highlight studies that help explain how the above-mentioned spatio-temporal
changes in zooplankton communities would affect biological production
as well as biogeochemical processes. We expect papers on this scope,
ranging from the smallest scales dealing with individual behavior to
the largest scales dealing with long-term community change analysis,
based on either laboratory experiments, field observation, and model
simulation.
March 15, 2011
Diane Stoecker,
Kristen Blattner, Alison Weigel and Dean Stockwell (Invited)
Acquired phototrophy in ciliates: Does it boost trophic transfer to mesozooplankton?
(S2-6988)
(pdf,
1.8 Mb)
Michael Landry and Michael R. Stukel
Plankton trophic structure and food-web fluxes in the eastern equatorial
Pacific (S2-707) (waiting for permission)
Sylvain Lenoir, Grégory Beaugrand and Jean-Claude
Dauvin
Projections of changes in the spatial distribution of zooplankton for the
end of this century: Consequences for higher trophic levels (S2-6989)
(pdf,
2.4 Mb)
Lindsay J. Sullivan, Wim Kimmerer and Joan Lindberg
Impacts of introduced copepods on the growth and survival of planktivorous
fishin the San Francisco Estuary (S2-7103)
(pdf,
0.5 Mb)
Daniel Bevan, John F. Dower, Marc Trudel and Asit Mazumder
Spatial variability in lipid content and fatty acid profilesof macrozooplankton
from coastal British Columbia, Canada (S2-7067)
(pdf,
0.9 Mb)
Hiroya Sugisaki, Kiyotaka Hidaka, Tadafumi Ichikawa,
Yuuichi Hirota, Yutaka Hiroe, Mikiko Kuriyama, Toru Udagawa and Kaoru Nakata
Long-term variation of the plankton community in the Kuroshio warm current
area; the spawning ground of Japanese sardine (S2-7191)
(pdf,
1.7 Mb)
Corinne Pomerleau, Steven H. Ferguson, Véronique
Lesage, Gesche Winkler and Wojciech Walkutz
Zooplankton prey species and foraging ecology of bowhead whales (Balaena
mysticetus) in the Canadian High Arctic: Insights from stable isotope
and stomach content analyses (S2-7137)
(pdf,
1.5 Mb)
Ainhoa Lezama-Ochoa, Michael Ballón, Daniel Grados,
Mathieu Woillez, Udane Martinez, Guillermo Boyra, Xabier Irigoien and Arnaud
Bertrand
Acoustic study of the macrozooplankton community in the Bay of Biscay: Diel
vertical migration, spatial patterns and interaction with pelagic fish (S2-7218) (waiting for permission)
Gareth L. Lawson, Andone C. Lavery, Peter H. Wiebe, Timothy
P. White and Reny B. Tyson
Aggregation of euphausiids and interaction with higher predators in regions
of abrupt topography of the northwest Atlantic (S2-7319) (waiting
for permission)
Mette Dalgaard Agersted and Torkel Gissel Nielsen
The functional biology of krill (Thysanoessa raschii) with focus
on its ecological role in a Greenlandic fjord (S2-7022)
(pdf,
1.8 Mb)
Michael J. Dagg, Bruce W. Frost and Jan A. Newton
Phytoplankton ingestion by populations of dielly migrating copepods and
euphausiids in Dabob Bay, a coastal fiord inWashington, USA (S2-7327) (waiting for permission)
Julieta Antacli, Marina Sabatini, Rut Akselman and Daniel
Hernández
Seasonal variability of feeding and reproductive activity of the copepods
Drepanopus forcipatus and Calanus australis in the Southern
Patagonian Shelf: Post-bloom vs. early- bloom conditions (S2-6932)
(pdf,
2.7 Mb)
Jonna Engström-Öst, Elena Gorokhova, Hedvig
Hogfors, Andreas Brutemark and Anu Vehmaa
Zooplankton and algal blooms – Case studies from the Baltic (S2-7148)
(permission to post denied, contact presenter)
Tone Falkenhaug and Padmini Dalpadado
Diet composition and food selectivity of Sprat (Sprattus sprattus)
in Hardangerfjord, a fjord off western Norway (S2-6957)
(pdf,
1.7 Mb)
Leonardo Castro, Gabriel Claramunt, Humberto E. González,
María C. Krautz, Alejandra Llanos-Rivera, Joyce Méndez, Wolfgang
Schneider and Samuel Soto
The effect of contrasting feeding environments on anchoveta egg quality
during the spawning season off central Chile (S2-7182)
(pdf,
0.3 Mb)
Wim Kimmerer
Biotic vs. physical control of zooplankton in estuaries (S2-7004)
(pdf,
1.7 Mb)
Joseph D. Warren, Susan E. Parks, David Wiley, Douglas
P. Nowacek and Ari S. Friedlaender
Measurements of zooplankton preyfielddensities over small spatial and temporal
scales and their effect on the behavior of individual baleen whale predators
(S2-7048) (permission to post denied,
contact presenter)
Klas O. Möller, Christian Möllmann, Axel Temming
and Michael St. John
Resolving the small scale distribution of plankton and marine snow: Unravelling
the role of thin layers as assessed with optical techniques (S2-7025)
(pdf,
2.3 Mb)
Anastasia Nikishina, Alexander Drits and Yulia Vasilyeva
The role of Noctiluca scintillans in the trophic dynamics of the
Black Sea plankton community (S2-7070)
(pdf,
0.5 Mb)
Lene Friis Møller and Peter Tiselius
Population dynamics and predation impact of the introduced ctenophore Mnemiopsis
leidyi in the Gullmars fjord, west coast of Sweden (S2-7246)
(pdf,
2.1 Mb)