Results 71 to 80 of about 4,335 (194)

Cormorant predation on PIT-tagged lake fish

open access: yesJournal of Limnology, 2014
The present study use data from recovered PIT (Passive Integrated Transponder) tags to explore species- and size-specific annual predation rates by cormorants on three common lacustrine fishes (size range 120-367 mm) in a European lake; roach (Rutilus ...
Christian Skov   +5 more
doaj   +1 more source

ASSESSMENT METHODS OF CORMORANT (Phalacrocorax carbo) DIET [PDF]

open access: yesCroatian Journal of Fisheries, 2008
Various cormorant diet assessment methods are used to assess their daily meal in order to evaluate, using these and other data, the damage to commercial fish farms as well as the damage on open waters caused by cormorants.
Krešimir Terzić   +3 more
doaj  

Comparison of Sampling Strategies to Estimate Abundance of Double-Crested Cormorants in Western Mississippi

open access: yesHuman-Wildlife Interactions, 2017
We compared 2 sampling strategies designed to estimate abundance of double-crested cormorants (Phalacrocorax auritus, hereafter cormorants) on aquaculture ponds in western Mississippi.
Aaron T. Pearse   +3 more
doaj   +1 more source

Effects of the 1997-1998 El Niño and 1998-1999 La Niña events on breeding waterbirds and sea lions in the Upper Gulf of California, México [PDF]

open access: yesGeofísica Internacional, 2003
During 1998 and 1999 I monitored waterbirds nesting on Isla San Jorge, at La Purinera and on Isla Montague, in the northern Gulf of California, as well as sea lions on Isla San Jorge. During El Niño the brown boobies on San Jorge ceased breeding and left
Eric Mellink
doaj  

[First nesting of Phalacrocorax pygmeus in Mantua province (Lombardy, N Italy)]

open access: yesRivista Italiana di Ornitologia - Research in Ornithology, 2018
[The Authors describe the first Pygmy Cormorants nesting in the Province of Mantua, in the “Valli del Mincio” Natural Reserve, in 2014 and 2015.] [Article in Italian]
Nunzio Grattini   +2 more
doaj   +1 more source

PREVALENCE OF AVIAN PARAMYXOVIRUS 1 AND AVIAN INFLUENZA VIRUS IN DOUBLE-CRESTED CORMORANTS (PHALACROCORAX AURITUS) IN EASTERN NORTH AMERICA [PDF]

open access: bronze, 2013
Tiffanie A. Cross   +6 more
openalex   +1 more source

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