Results 21 to 30 of about 2,664,502 (197)

Feeding ecology and epizootological value of the Great Cormorant (Phalacrocorax carbo) during the secondary expansion of the Baikal region

open access: yesЮг России: экология, развитие, 2022
Aim. To research the Great Cormorant (Phalacrocorax carbo L., 1758) ecology during the secondary expansion of the Baikal region.Material and Methods. The material for studying cormorant nutrition was 28 stomachs of harvested birds, visual observations of
E. N. Yelayev   +7 more
doaj   +1 more source

Soil conditions under great cormorant and grey heron colonies in a wetland: Effect on soil nematode abundance and trophic structure [PDF]

open access: yesJournal of Water and Land Development, 2023
This study aimed to investigate how great cormorants and grey herons affect the density and trophic diversity of soil nematodes under breeding colonies located in Stawy Raszyńskie Nature Reserve (central Poland).
Dawid Kozacki   +3 more
doaj   +1 more source

Determination of total mercury in muscle, intestines, liver and kidney tissues of cormorant (Phalacrocorax carbo), great crested grebe (Podiceps cristatus) and Eurasian buzzard (Buteo buteo)

open access: yesVeterinární Medicína, 2005
The total mercury concentrations in four tissues (muscle, intestines, liver and kidney) of aquatic birds (cormorant - Phalacrocorax carbo and great crested grebe - Podiceps cristatus) and Eurasian buzzard (Buteo buteo) were determined by cold vapour ...
P. Houserova   +5 more
doaj   +1 more source

Post-Breeding Dispersion and Migratory Routes of Dalmatian Pelican (Pelecanus Crispus), Great Cormorant (Phalacrocorax Carbo) and Eurasian Spoonbill (Platalea Leucorodia) from the North of Sinoe Lagoon (Danube Delta) [PDF]

open access: yesScientific Annals of the Danube Delta Institute, 2019
In the period 2003-2006, a series of bird markings were performed in nesting colonies from the northern part of the Sinoie lagoon in the Danube Delta Biosphere Reserve.
Kiss J. Botond   +4 more
doaj   +1 more source

Identification of Contracaecum rudolphii (Nematoda: Anisakidae) in Great Cormorants Phalacrocorax carbo sinensis (Blumenbach, 1978) from Southern Italy

open access: yesVeterinary Sciences, 2023
In this study, four dead great cormorant Phalacrocorax carbo sinensis (Blumenbach, 1978) specimens, collected from the coasts and lakes of Southern Italy, were examined by necropsy for the detection of Contraceacum sp.
Gaetano Cammilleri   +9 more
doaj   +1 more source

Effects of Great Cormorant Predation on Fish Populations and Fishery [Elektronisk resurs]

open access: yes, 2001
The strong increase in number of Great cormorants Phalacrocorax carbo in Sweden in recent years has led to conflicts - particularly with fishery. This thesis focuses on the possible effects of cormorant predation on fish populations.
Hansson, Sture,, Engström, Henri,
core   +9 more sources

Differences in the diet of breeding Cormorants Phalacrocorax carbo sinensis in an inland colony: the effect of years, breeding stages and locations within the colony

open access: yesLimnological Review, 2018
A study of the diet of the Great Cormorant Phalacrocorax carbo sinensis (fish species and size) in (1) different seasons (years), (2) breeding stages (incubation and chick rearing), and (3) breeding areas (center and edge) in the colony in the Dzierżno ...
Buttu Simone   +3 more
doaj   +1 more source

The complexity of ecological impacts induced by great cormorants [PDF]

open access: yesHydrobiologia, 2015
Following decades of global extermination, the general population of the great cormorant (Phalacrocorax carbo L.) is on the rise. The lack of regular predators, highly skilled fish rapacity, rapid metabolism, significant rate of excretion and ability to form large nesting colonies on relatively small areas lead to numerous environmental consequences of
Klimaszyk, Piotr, Rzymski, Piotr
openaire   +1 more source

APPLICATION OF THE GREAT CORMORANT'S (Phalacrocorax carbo sinensis) DAILY MEAL IN THE STIMATION OF DAMAGES AT FISHPONDS [PDF]

open access: yesCroatian Journal of Fisheries, 2004
Daily meal of the Great Cormorant (Phalacrocorax carbo sinensis), joined with the number of birds and composition of fish in the meal, has high importance in total calculation of damage-costs on fish stock.
Anđelko Opačak   +3 more
doaj  

Stomach contents of the great cormorant Phalacrocorax carbo inhabiting northeastern Poland

open access: yesArchives of Polish Fisheries, 2021
The contents of 174 stomachs of great cormorants (Phalacrocorax carbo) inhabiting northeastern Poland were analyzed. Fish and hard parts of fish were found in most of the stomachs. (87.4%). Moreover, nematode and tapeworm parasites were observed in 76.4%
Traczuk Piotr   +2 more
doaj   +1 more source

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