The Antarctic ecosystem of Potter Cove, King-George Island (Isla 25 de Mayo)

411 Pages·2007·7.46 MB·English

571

2008
The Antarctic ecosystem of Potter Cove,
King-George Island (Isla 25 de Mayo)
Synopsis of research performed 1999-2006
at the Dallmann Laboratory and Jubany Station
_______________________________________________

Edited by Christian Wiencke, Gustavo A. Ferreyra,
Doris Abele and Sergio Marenssi

ALFRED-WEGENER-INSTITUT FÜR
POLAR- UND MEERESFORSCHUNG
In der Helmholtz-Gemeinschaft

D-27570 BREMERHAVEN
Bundesrepublik Deutschland

ISSN 1866-3192
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The Antarctic ecosystem of Potter Cove,
King-George Island (Isla 25 de Mayo)
Synopsis of research performed 1999-2006
at the Dallmann Laboratory and Jubany Station
_______________________________________________

Edited by Christian Wiencke, Gustavo A. Ferreyra,
Doris Abele and Sergio Marenssi

Please cite or link this item using the identifier
hdl: 10013/epic.30038 or http://hdl.handle.net/10013/epic.30038
ISSN 1866-3192
Editors:
Christian Wiencke1, Gustavo A. Ferreyra2, Doris Abele1, & Sergio Marenssi2
1 Alfred Wegener Institute for Polar and Marine Research, D-27570 Bremerhaven, Germany
2 Instituto Antártico Argentino, Cerrito 1248, 1010 Buenos Aires, Argentina
TABLE OF CONTENTS

INTRODUCTION………………………………………………………………… 7

1. THE ENVIRONMENT OF POTTER COVE

A. Richter, S. Wuttke & K. Zacher:
Two years of in situ UV measurements at the Dallmann Laboratory/
Jubany Station................................................................................................ 12

S. Kraus & R. del Valle:
Geology, tectonics and Ar-Ar ages of the magmatic dykes from Potter
Peninsula (King George Island, South Shetland Islands)…………………….. 20

E. Ermolin, A.S. Busso:
Interaction between permafrost and groundwater on the Potter Peninsula,
King George Island (Isla 25 de Mayo), Antarctic Peninsula region………….. 31

D. Abele, A. Atencio, D. Dick, O. Gonzalez, M. Kriews, S. Meyer,
E. Philipp &V.I. Stölting:
Iron, copper and manganese discharge from glacial melting into Potter
Cove and metal concentrations in Laternula elliptica shells………………….. 39

G.A. Ferreyra, I.R. Schloss, G. Mercuri, L. Ferreyra & K.-U. Richter:
The potential ecological significance of dissolved and particulate matter
in the water column of Potter Cove, King George Island (Isla 25 de Mayo),
South Shetland Islands………………………………………………………….... 47

2. STRUCTURE AND FUNCTION OF THE ECOSYSTEM

M.L. Quartino H. Zaixso & A. Boraso de Zaixso:
Macroalgal assemblages related to abiotic factors in Potter Cove, King
George Island (Isla 25 de Mayo), Antarctica………………………………….... 58

M.L. Quartino, A. Boraso de Zaixso & F.R. Momo:
Macroalgal production and the energy cycle of Potter Cove…………………. 68

V.L. Fuentes, S.B. Schnack-Schiel, I.R. Schloss & G.G. Esnal:
Mesozooplankton of Potter Cove: Community composition and seasonal
distribution in 2002 and 2003…………………………………………………….. 75

M.S. Hoffmeyer & V.L. Fuentes:
Morphometry of Calanoides acutus and Calanus propinquus (Copepoda,
Calanoida) from West Antarctic Peninsula waters…………………………….. 85

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E. Barrera-Oro & R. Casaux:
General ecology of coastal fish from the South Shetland Islands and West
Antarctic Peninsula areas………………………………………………………… 95

G. Mercuri, M. Tatián, F.R. Momo, V.L. Fuentes & R. Sahade:
Massive input of terrigenous sediment into Potter Cove during austral
summer and the effects on the bivalve Laternula elliptica: a laboratory
experiment…………………………………………………………………………. 111

M. Tatián, G. Mercuri, V.L. Fuentes, J.C. Antacli, A. Stellfeldt &
R. Sahade:
Role of benthic filter feeders in the pelago-benthic coupling: assimilation,
biodeposition and particle flux………………………………………………….... 118

M. Tatián, C. Milozzi, R. Sahade, G. Mercuri & C. Lagger:
Contribution of different seston components to ascidian food in
Potter Cove……………………………………………………………………..…. 128

G. Veit-Köhler, J.C. Antacli & A. Rose:
Metazoan meiofauna in Potter Cove, King George Island………………..….. 135

N. Wilbert:
Species composition and structure of the ciliate community in the benthos at
King George Island, Antarctica ………………………………………………… 141

M. Graeve, R. Sahade, V.L. Fuentes, M. Tatián & G. Kattner:
Bentho-pelagic coupling at Potter Cove, Antarctica: A fatty acid approach... 147

A.G. Atencio, M.L. Bertolin, L. Longhi, G.A. Ferreyra, M.E. Ferrario
& I.R. Schloss:
Spatial and temporal variability of chlorophyll-a and particulate organic
matter in the sediments and the water column of Potter Cove, Antarctica… 154

F.R. Momo, R. Sahade & M. Tatián:
Benthic animal communities of Potter Cove (King George Island,
Antarctica): Observed patterns and explanatory models…………………….. 162

C. Büßer, S. Hahn, A. Gladbach, S. Lorenz, A. Nordt, P. Quillfeldt,
T. Schmoll & H.-U. Peter:
A decade of fundamental ecological research on storm-petrels at the Tres
Hermanos colony, Potter Peninsula, King George Island……………………. 168

R. Casaux & E. Barrera-Oro:
Recent studies on the Antarctic Shag Phalacrocorax bransfieldensis …… 176

A.M. Stchigel, M. Calduch, W.P. Mac Cormack & J. Guarro:
Micromycetes from King George Island , South Shetland Islands,
Antarctica ………………………………………………………………………… 184

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3. ECOPHYSIOLOGY OF KEY ORGANISMS IN THE ECOSYSTEM

C. Lütz, M. Blassnigg & D. Remias:
Different flavonoid patterns in Deschampsia antarctica and Colobanthus
quitensis from the maritime Antarctic …………………………………………... 192

F. Laturnus, P. Sandén, T. Svensson & C. Wiencke:
Finding the scattered pieces of the mechanisms behind the formation of
volatile halogen-containing C1- and C2-compounds in Antarctic
macroalgae ……………………………………………………………………….. 200

G. Malanga, P.M. Gonzalez, M.S. Estevez, D. Abele & S. Puntarulo:
Oxidative stress in Antarctic algae and molluscs ……………………………. 208

E. Philipp, T.Brey, M. Voigt & D.Abele:
Growth and age of L. elliptica populations in Potter Cove, King George
Island ……………………………………………………………………………… 216

S.C. Vazquez, S.H. Coria & W.P. Mac Cormack:
Properties of extracellular proteases produced by psychrotolerant bacteria
isolated in the vicinities of Jubany station ……………………………………... 223

4. RESPONSE OF KEY ORGANISMS TO GLOBAL AND REGIONAL
CHANGES AND ECOSYSTEM FUNCTIONING

G.A. Ferreyra, W.P. Mac Cormack, M. Hernando, E. Hernandez,
I.R. Schloss, D. Abele & G. Malanga:
A synthesis on UVR biological effects research in the water column of
Potter Cove ……………………………………………………………………….. 234

M. Hernando, G. Malanga, S. Puntarulo & G.A. Ferreyra:
A comparative study of defence strategies against UV-induced damage
in an Antarctic diatom (Thalassiosira sp.) and a Sub-Antarctic phyto-
flagellate (Asteromonas sp.) ……………………………………………………. 243

M.Y. Roleda, K. Zacher, G.L. Campana, A. Wulff, D. Hanelt,
M.L. Quartino & C. Wiencke:
Photosynthetic performance and impact of ultraviolet radiation on the
reproductive cells of Antarctic macroalgae …………………………………..... 254

R. Rautenberger & K. Bischof:
UV susceptibility of photosynthesis of adult sporophytes of four brown
Antarctic macroalgae (Phaeophyceae) ………………………………………… 263

U. Karsten, K. Hoyer & C. Wiencke:
Interactive effects of temperature and radiation on UV-absorbing myco-
sporine-like amino acids in two red macroalgae from Antarctica …………… 270

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G.L. Campana, F.R. Momo, M.L. Quartino & G.A. Ferreyra:
Effects of UV radiation and grazing on biomass and primary production
of subtidal benthic algae in Antarctica ………………………………………… 278

K. Zacher & G.L. Campana:
UV and grazing effects on an intertidal and subtidal algal assemblage: a
comparative study ………………………………………………….……………. 287

A. Wulff & K. Zacher:
Short-term UV effects on the photosynthesis of Antarctic benthic diatoms…..295

G.L. Campana, M.L. Quartino, A. Yousif & A. Wulff:
Impacts of UV radiation and grazing on the structure of a subtidal benthic
diatom assemblage in Antarctica ……………………………………………..… 302

E.A. Hernández, G.A. Ferreyra & W.P. Mac Cormack:
Impact of ultraviolet radiation on two isolated Antarctic marine bacteria…… 311

K. Heise & D. Abele:
Response of blood parameters of the Antarctic fish Notothenia coriiceps to
warming and hypoxia …………………………………………………………….. 320

R. Sahade, S. Tarantelli, M. Tatían & G. Mercuri:
Benthic community shifts: A possible linkage to climate change? ………..… 331

5. EFFECTS OF ANTHROPOGENIC CHANGES ON ORGANISMS
AND ON THE ECOSYSTEM

L. Ruberto, R. Dias, S.C. Vazquez, A. Lobalbo & W.P. Mac Cormack:
Small scale studies on biodegradation of hydrocarbons in acutely contami-
nated Antarctic soils ……………………………………………………………… 340

A. Curtosi, E. Pelletier, C. Vodopivez & W.P. Mac Cormack:
Distribution pattern of polycyclic aromatic hydrocarbons in soil, surface
marine sediments and suspended particulate matter in the seawater
column near Jubany Station (Antarctica) …………………………………….. 348

C. Vodopivez, W.P. Mac Cormack, E. Villaamil, A. Curtosi, E. Pelletier
& P. Smichowski:
Evidence of pollution with hydrocarbons and heavy metals in the
surrounding of Jubany Station ……………………………………………….. 357

E. Barrera-Oro, R. Casaux & R. Marschoff:
Impact of the commercial fishery and shore-based sampling programs on
inshore fish of the South Shetland Islands area ……………………………… 365

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K.C. Schuster:
Impact of human and conspecific disturbance on behaviour and heart rate of
incubating Adélie penguins (Pygoscelis adeliae) ……………………………. 373

6. LONG TERM DATA SETS

I.R. Schloss, G.A. Ferreyra, O. González, A. Atencio, A., V.L. Fuentes, G.
Tosonotto, G. Mercuri, R. Sahade, M. Tatián, & D. Abele:
Long-term hydrographic conditions and climate trends in Potter Cove …….. 382

L. Ciattaglia, C. Rafanelli, J. Araujo & H. Rodriguez:
Long-term measurements of the atmospheric carbon dioxide concentration
measured at Jubany station indicate a relationship with El Niño ……………. 390

APPENDIX

List of articles based on investigations performed in the Dallmann
Laboratory published in peer-reviewed scientific journals in the
years 1999-2007………………………………………………………………….. 397

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