AUK

Photo Cornelius Nello

Little auk study – the history:1970 – 1980 Norwegian and Polish studies on LA cenzus, feeding, growth(M.Norderhaug, L. Stempniewicz) 1979-1990: massive auk diet analyses at IOPAS For projects by NPI (F. Mehlum), UG (L. Stempniewicz), UB (J. Taylor)1985- 1990 Norwegian and Polish studies on energy requirement, ecophysiology of Alle alle(GW Gabrielsen, F. Mehlum, M. Konarzewski, J. Taylor)

1991 – recognition that Calanus in Alle alle diet is NOT a C. finmarchicus(S. Kwaśniewski & J. Koszteyn, IOPAS) 1992 – sampling and paper from Franz Josef Land colony (Weslawski, Stempniewicz, Galaktionov 1994) 1994 – sampling and paper from Bjornoya colony (Weslawski, Mehlum, Stempniewicz) 2001 – start of regular USA-Polish cooperation in Hornsund on auks & zoopl. (Karnovsky et al.2003, Ann Harding )2004 – sampling diet from NE Greenland (A. Harding) 2005 – sampling zooplankton & diet at NE Grenland (A. Harding & Wiktor junior) 2005 - Formulation of two clusters at IPY4 that cover the climate, ocean, plankton and seabirds coupling (SF Petersen, S. Kwasniewski, L. Stempniewicz, K. Drinkwater)

Węsławski et al..2000, Oceanologia 42

The concept of food web change in historical time. Bowheads elimination, provided excessive food for Little auks

AUK - present contact persons:

IOPAS – zooplankton sampling, diet analyses (Wojtek Walkusz)IB UG – auks feeding behaviour at colony(Lech Stempniewicz)CC USA – auks behaviour, counts at sea(Nina Karnovsky) Alaska – auks genetics, physiology(Ann Harding) Norsk Polarinstitutt –lipids transfer, food web( Harald Steen)Dansk Polarcenter – (Knud Falk ?)

Nina Karnovsky at Polish Polar Station in Hornsund, AUK study 2005

Sea birds count & zooplankton sampling

with simultaneous diet samples collection in colony (2001- 2005)

Average % of large Calanus in net tows (ind/mAverage % of large Calanus in net tows (ind/m33):):ATLANTIC WATERATLANTIC WATER ARCTIC WATERARCTIC WATER

C. finmarchicus V+ fV+ fC. glacialis IIII+III+IV+V+ fV+V+ fother taxa and stages of Calanusother taxa and stages of Calanus

2.2 kJ/m3 6.9 kJ/m3

Karnovsky et al. 2003

Seabirds counts & zooplankton sampling from OCEANIA, AUK project 2001- 2005, for details see http:/www.iopan.gda.pl/ecology

Temperature

Salinity

C. glacialisC. finmarchicus in

d/m

3

0.0

50.0

100.0150.0

200.0

250.0

300.0

350.0400.0

450.0

500.0

4 5 6 7 8

0

10

20

30

40

50

60

Little Auks at sea ind/

5km

Karnovsky et al..2003, MEPS

Example of combined survey from r/v OCEANIA, July 2001

sampledHornsundIsfjordenBjornoyaFJ LandYoung SoundNW Greenland

Not sampledNovaja ZemliaJan MayenMagdalena fjord

Little auk colonies studied by present consortium