WI - Cormorant Research Group Meetings  

IV EUROPEAN CONFERENCE
ON CORMORANTS


Bologna, 1-2 November 1995

proceedings published as

N. Baccetti & G. Cherubini (Eds.).

Supplemento Ricerche Biologia Selvaggina
vol. XXVI - pp. 591
December 1997


INDEX


SESSION I
Cormorant numbers in Europe and the Mediterranean


RØV N.
Population trends and regulation of breeding numbers in the Great Cormorant in Norway



5


SELLERS R. M., G. R. EKINS, B. HUGHES & KIRBY T. S.
Population development of inland breeding Cormorants in Great Britain



11


LINDELL L.
Development of the breeding population of Cormorants in Sweden,l992-1995



23


BREGNBALLE T. & GREGERSEN T.
Changes in growth of the breeding population of Cormorants Phalacrocorax carbo sinensis in Denmark




31


MENKE T.
Development of the Cormorant breeding population in Germany until 1995



47


ULENAERS P., K. DEVOS & TACOB J-P.
Population development of wintering and breeding Cormorants (Phalacrocorax carbo sinensis) in Belgium




55


MUSIL P., T. FORMílNEK & ŠKOPEK J.
Numbers and movements of Cormorants Phalacrocorax carbo sinensis in the Czech Republic and Slovakia




61


SAMUSENKO I. & KOZULIN A.
Population dynamics of Cormorants and key-factors determining expansion in Belarus




73


CARPEGNA F., F. GRIECO, M. GRUSSU, E. VERONESI & VOLPONI S.
The Italian breeding population of Cormorant (Phalacrocorax carbo)



81


MELLIN M., I. MIROWSKA-IBRON, T. GROMADZKA & KRUPA R.
Recent development of the Cormorant breeding population in north-eastern Poland




89


SESSION II
Ecology, behaviour and dispersion

 

VELDKAMP R.
Early breeding by Cormorants Phalacrocorax carbo sinensis at Wanneperveen, The Netherlands: profiting by spawning Roach Rutilus rutilus




99


BUCHHEIM A.
Temporal limits of overwintering in migratory Cormorants and the influence of frost-periods on wintering individuals




111


DAVIES J. M. & FELTHAM M. J.
The abundance and distribution of Cormorants on a river fishery in north-west England




119


DOHERTY D. & McCARTHY K.
The population dynamics, foraging activities and diet of great Cormorants (Phalacrocorax carbo carbo L.) in the vicinity of an Irish hydroelectricity generating station




133


MOGSTAD D. K. & Røv N.
Movements of Norwegian Great Cormorants



145


KOSHELEV A., B. CHABAN & POKUSA R.
Seasonal distribution and mortality of Cormorant from the northern Azov Sea



153


FISKE E. & Røv N.
Survival rates of Great Cormorant (Phalacrocorax carbo carbo) from ring-recovery data




159


LINDELL L.
Food composition of Cormorants Phalacrocorax carbo sinensis in Sweden



163


HALD-MORTENSEN P.
Does Cormorant food tell more about fish than Cormorants?



173


WALTHEW G.
Cormorant predation of pond fish in Hong Kong



181


SESSION III
Methods of studying diet and feeding ecology

 

CARSS D. N.
Techniques for assessing Cormorant diet and food intake: towards a consensus view




197


TRAUTTMANSDORFF T. & WASSERMANN G.
Diet and pellet production of immature Cormorants (Phalacrocorax carbo sinensis) .




231


CHERUBINI G. & MANTOVANI R.
Variability in the results of diet assessment by using indices for otolith digestion




239


MARQUISS M. & CARSS D. N.
Methods of estimating the diet of sawbill ducks Mergus spp. and Cormorants Phalacrocorax carbo




247


FELTHAM M. J. & DAVIES T. M.
Daily food intake of Cormorants: a summary



259


KELLER T.
Estimating the daily energy expenditure of wintering Cormorants (Phalacrocorax carbo sinensis) in Bavaria, Southern Germany - methods and handling




269


SESSION IV
Interactions with fish and fishermen

 

CARSS D. N., M. MARQUISS & LAUDER A. W.
Cormorant Phalacrocorax carbo carbo predation at a major trout fishery in Scotland




281


KELLER T., T. VORDERMEIER, M. VON LUKOWICZ & KLEIN M.
The impacts of Cormorants on the fish stocks of several Bavarian water bodies with special emphasis on the ecological and economical aspects




295


MARION L.
Comparison between the diet of breeding Cormorants Phalacrocorax carbo sinensis, captures by fisheries and available fish species: the case of the largest inland colony in France, at the Lake of Grand-Lieu





313


VOLPONI S.
Cormorants wintering in the Po Delta: estimate of fish consumption and possible impact on aquaculture production




323


VAN DAM C.
Cormorants and commercial fisheries in the Netherlands



333


ENGSTRÖM H.
Do Cormorants deplete fish numbers close to their breeding colonies?



343


ADAMEK Z., H. KLINGER & STAUB E.
Cormorants in Europe - the evaluation of EIFAC/FAO questionnaire campaign



347


DOBROWOLSKI K. A. & DEJTROWSKI R.
Control of the population of Cormorants as pests of fish stock in Poland



355


POSTERS


BACCETTI N., G. CHERUBINI, R. SANTOLINI & SERRA L.
Cormorant wintering in Italy: numbers and trends



363


BECCARIA A., M. PASCALE, A. PERRONE, S. RE, G. SARACCO
Cormorant (Phalacrocorax carbo) diet in the "Lame del Sesia" Natural Park, N Italy




367


BOLDREGHINI P., R. SANTOLINI, R. TINARELLI, K. KRAVOS, F. PERCO, P. UTMAR & ZANUTTO I.
Different Cormorant diets in two coastal wetlands of the northern Adriatic Sea




371


BREGNBALLE T., S. E. SCHJØRRING ,T. GREGERSEN, L. ABRAHAMSEN & FRITZE E.
Plastic leg-ring wear and loss in a study of Cormorants




377


CARSS D. N., S. B. PIERTNEY, A. GOOSTREY, M. MARQUISS, J. F. DALLAS, J. S. KIRBY, G. R. EKINS & HANNAFORD-HILL , L. R.
The use of molecular markers to investigate dispersal and colony formation of UK Cormorants Phalacrocorax carbo





383


CORBI F., D. CASCIANELLI & PINOS E.
Cormorants wintering in Latium, Central Italy in the season 1994-95



389


CORDA G., H. SCHENK & TORRE A.
Midwinter counts of Cormorant (Phalacrocorax carbo sinensis) in Sardinia, 1993-95: preliminary results




397


DAVIES T. M. & FELTHAM M. .T.
Fish wounding by Cormorants



403


DELLA TOFFOLA M., G. ALESSANDRIA & CARPEGNA E.
Origins of ringed Cormorants Phalacrocorax carbo observed in north-western Italy (1987 - 1994)




409


DONATI F., G. COSSUTTA, A. RONCARATI & LORO F.
The impact of fish eating birds on intensive sea bass (Dicentrarchus labrax L.) farms: economic losses and benefits of covering the ponds




413


FELTHAM M. J. &DAVIES J. M.
The diet of wintering Cormorants in relation to angling ; catches on a coarse river fishery in north-west England: spatial and temporal variation




425


FLORIS E.
Preliminary note on the Sardinian breeding colony of Cormorant



435


FUKUDA M.
Relationships between age and breeding success of Great Cormorant Phalacrocorax carbo hanedae at Shinobazu Pond colony, Tokyo, Japan




439


GOC M., L. ILISZKO & CHELKOWSKA N.
Daily foraging rhythm at a Cormorant Phalacrocorax carbo colony during the breeding season




445


GOC M. & NITECKI C.
Human activities accelerate the expansion of the Cormorant breeding colony at Katy Rybackie, NE Poland




453


GOGU-BOGDAN M.
Food composition of Great Cormorant during the breeding season in "Prundu Cu Pasari" colony, Danube Delta Reserve - Preliminary results




457


GRADE N. & GRANADEIRO J. P.
Cormorant wintering in Portugal: the case of Ria Formosa Natural Park



465


GRIECO E, E. VERONESI & FRUGIS S.
The Cormorant colony of Val Campotto (NE Italy): recent changes in structure and breeding biology




469


KOOP B. & KIECKBUSCH J. J.
Change in feeding habits by Great Cormorants Phalacrocorax carbo sinensis in Schleswig-Holstein, Germany




477


LARICCIA G.
Feeding ecology of Cormorants (Phalacrocorax carbo sinensis) wintering in the Pontini coastal lagoons (Parco Nazionale del Circeo, Latina, Italy)




487


LEKUONA J. M. & CAMPOS E.
Wintering population and roosting distribution of Cormorants (Phalacrocorax carbo) in the north of Spain




493


MARTYNIAK A., B. GABRYS, S. BORON, P. HLIWA, U. SZYMANSKA, J. TERLECKI & ROMANIEWICZ A.
Diet composition of Cormorants Phalacrocorax carbo sinensis from pellets collected in the post-breeding season at the Wigry National Park (NE Poland)





499


MARTYNIAK A., J. TERLECKl, S. BORON, P. HLIWA,. U. SZYMANSKA, B. GABRYS & ROMANIEWICZ A.
Diet composition of Cormorants Phalacrocorax carbo sinensis from pellets collected at Katy Rybackie colony, northern Poland





505


MELLIN M. & KRUPA R.
Diet of Cormorant, based on the analysis of pellets from breeding colonies in NE Poland




511


MELOTTI P, A. RONCARATI, O. MORDENTI, F. LORO & DEES A.
Fish-eating bird predation impact on intensive farming of gilthead seabream (Sparus aurata L.) in the North Adriatic area, Italy .




517


PIZARRO S. R., G., MUNOZ. ARROYO, J. ,A. .MASERO F., HORTAS, A. PÉREZ-HURTADO & CASTRO M.
Preliminary data on Cormorant numbers and diet in Càdiz Bay SW Spain




521


SCHENK H.
Fishermen and Cormorants in the Oristano province (Sardinia, Italy): more than a local problem




529


STEMPNIEWICZ L. & GROCHOWSKI A.
Diet composition of Cormorants in the breeding colony of Katy Rybackie, NE Poland (regurgitated preys, 1992-94)




537


SUDFELDT C. & BUCHHEIM A.
Preliminary results on status and distribution of Cormorants Phalacrocorax carbo wintering in the western Federal States of Germany in 1994/95




545


TALUKDAR B. K.
Status and conservation of Phalacrocoracidae in Assam, India



551


TINARELLI R., P UTMAR & PERCO F.
Assessment of the attraction level of fish-farms and larger wetlands for the Cormorant in Friuli-Venezia Giulia (N Italy)




557


VOLPONI S. & EMILIANI D.
The Pygmy Cormorant Phalacrocorax pygmaeus as a breeding species in Italy




563


VOLPONI S., D. EMILIANI Population, breeding success and diet of Great Cormorants nesting in the Po Delta area (Northern Italy)



569


WIHNEY B. J., C. J. FEAR & PARKIN D. T.
Preliminary results of a genetic investigation into the origin of the British inland Phalacrocorax carbo breeding colonies




575


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