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Session 2
Ecological interactions: Links to upper and lower trophic levels


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)
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    November 5 , 2010
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    December 15 , 2010
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