Economic impact of predatory piscivorous birds on small-scale aquaculture farms in Kenya
Aquaculture Reports, 2019 This study assessed the economic loss due to pond-fish predation by piscivorous birds in small-scale aquaculture systems in western Kenya. Piscivorous birds were surveyed in the field through daily focal scan sampling to record abundance and species ...
Nickson Erick Otieno
exaly +5 more sources
The influence of meal size on prey DNA detectability in piscivorous birds. [PDF]
Mol Ecol Resour, 2017 AbstractMolecular methods allow noninvasive assessment of vertebrate predator–prey systems at high taxonomic resolution by examining dietary samples such as faeces and pellets. To facilitate the interpretation of field‐derived data, feeding trials, investigating the impacts of biological, methodological and environmental factors on prey DNA detection ...
Thalinger B +3 more
europepmc +5 more sources
Diet analysis in piscivorous birds: What can the addition of molecular tools offer? [PDF]
Ecol Evol, 2017 AbstractIn trophic studies on piscivorous birds, it is vital to know which kind of dietary sample provides the information of interest and how the prey can be identified reliably and efficiently. Often, noninvasively obtained dietary samples such as regurgitated pellets, feces, and regurgitated fish samples are the preferred source of information. Fish
Oehm J +3 more
europepmc +4 more sources
Feces from Piscivorous and Herbivorous Birds Stimulate Differentially Phytoplankton Growth [PDF]
Water (Switzerland), 2019 Aquatic birds may impact shallow ecosystems via organic and nutrient enrichment with feces. Such input may alleviate nutrient limitation, unbalance their ecological stoichiometry, and stimulate primary production. Herbivorous and piscivorous birds may produce different effects on aquatic ecosystems due to different physiology, diet and feces elemental ...
Marija Katarzyte +2 more
exaly +4 more sources
Sex-specific prey partitioning in breeding piscivorous birds examined via a novel, noninvasive approach. [PDF]
Ecol Evol, 2018 AbstractPiscivorous birds frequently display sex‐specific differences in their hunting and feeding behavior, which lead to diverging impacts on prey populations. Cormorants (Phalacrocoracidae), for example, were previously studied to examine dietary differences between the sexes and males were found to consume larger fish in coastal areas during autumn
Thalinger B +4 more
europepmc +5 more sources
Helminth parasites of piscivorous birds from lakes in the south of Chile [PDF]
Memorias Do Instituto Oswaldo Cruz, 1993 Torres P
exaly +6 more sources
Cormorant catch concerns for fishers: estimating the size-selectivity of a piscivorous bird. [PDF]
PLoS ONE, 2013 Conflict arises in fisheries worldwide when piscivorous birds target fish species of commercial value. This paper presents a method for estimating size selectivity functions for piscivores and uses it to compare predation selectivities of Great ...
Vladimir Troynikov +6 more
doaj +5 more sources
Historic and contemporary use of catfish aquaculture by piscivorous birds in the Mississippi Delta [PDF]
The Condor, 2020 AbstractPiscivorous birds are the primary source of catfish (Ictalurus spp.) depredation at aquaculture facilities in northwestern Mississippi. Of particular concern is the Double-crested Cormorant (Phalacrocorax auritus), which can cost aquaculture producers millions of dollars annually through the depredation of cultured fish.
Paul C Burr +4 more
openaire +2 more sources
THE ROLE OF PISCIVOROUS BIRDS OF PODICEPS GENUS IN THE ECOLOGY OF ERYSIPELOTHRIX RHUSIOPATHIAE BACTERIA [PDF]
Ribogospodarsʹka Nauka Ukraïni, 2015 Purpose. To analyze the role of piscivorous birds of Podiceps genus in the ecology of Erysipelothrix rhusiopathiae bacteria. Methodology. The serological examination of birds was performed using E.
O. Hulai, O. Zhukorskyi
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SEMANTIC FEATURES OF THE NAMES OF ASTRAKHAN PISCIVOROUS BIRDS
HUMANITARIAN RESEARCHES, 2021 The article is devoted to the description of the names of piscivorous birds in the Astrakhan dialects. The nominations of birds in the Russian language constitute a layer of common Slavic vocabulary. The Proto-Slavic vocabulary and wordformation system served as the basis for further historical development.
M. EKATERINA B.
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