Results 41 to 50 of about 7,869 (211)
Journal of Advanced Biotechnology and Experimental Therapeutics, 2020 This investigation was carried out to observe the migration status and the feeding guild of the avian fauna including the relative diversity of Jaipurhat District of Bangladesh. Data were collected from November 2017 to October 2019.
Al Amin +5 more
doaj +1 more source
What is the influence on water quality in temperate eutrophic lakes of a reduction of planktivorous and benthivorous fish? A systematic review protocol [PDF]
, 2013 Background: In lakes that have become eutrophic due to sewage discharges or nutrient runoff from land, problems such as algal blooms and oxygen deficiency often persist even when nutrient supplies have been reduced.
Bernes, C. +6 more
core +3 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 +1 more source
PLoS ONE, 2014 A mathematical expression of "variance" in the first line immediately below Equation number 6 in the "Estimation procedure" of the Materials and Methods is incorrectly given. The correct expression is: exp(2ϴ3+ϴ24)(exp(ϴ24)-1).
Vladimir Troynikov +6 more
openaire +4 more sources
Cormorant predation on PIT-tagged lake fish [PDF]
, 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 ...
Baktoft, Henrik +5 more
core +2 more sources
Onderstepoort Journal of Veterinary Research, 2006 The ascaridoid nematodes Dujardinascaris madagascariensis Chabaud & Caballero, 1966, Dujardinascaris dujardini (Travassos, 1920), Gedoelstascaris vandenbrandeni (Baylis, 1929) Sprent, 1978 and Multicaecum agile (Wedl, 1861) Baylis, 1923 were ...
K. Junker +3 more
doaj +1 more source
PLoS ONE, 2022 We investigated the cumulative effects of predation by piscivorous colonial waterbirds on the survival of multiple salmonid (Oncorhynchus spp.) populations listed under the U.S.
Allen F Evans +5 more
doaj +1 more source
Biological Reviews, EarlyView.ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz +6 more
wiley +1 more source
Experimental Predictions of The Functional Response of A Freshwater Fish [PDF]
, 2013 The functional response is the relationship between the feeding rate of an animal and its food density. It is reliant on two basic parameters; the volume searched for prey per unit time (searching rate) and the time taken to consume each prey item ...
Gingras M. L. +8 more
core +1 more source
The influence of rivers on seabird foraging ecology
Biological Reviews, EarlyView.ABSTRACT Rivers act as vital arteries to the world's oceans, delivering fresh water and nutrients that sustain marine ecosystems. Globally, river flow increasingly is being altered by climate change and anthropogenic pressures; yet the significance of rivers to predatory marine species, such as seabirds, and the extent to which river‐related changes ...
Julia B. Morais +2 more
wiley +1 more source