Results 61 to 70 of about 53,919 (205)
Why do some fish fight more than others? [PDF]
, 2012 Reversible changes in how readily animals fight can be explained in terms of adaptive responses to differences in the costs and benefits of fighting. In contrast, long-term differences in aggressiveness raise a number of questions, including why animals ...
Huntingford, F. +2 more
core +1 more source
Nitrogen excretion and oxygen consumption under severe hypoxia in siluriform fishes from the Amazon
Journal of Fish Biology, EarlyView.Abstract Siluriform fishes collected from the Rio Negro and Rio Solimões proved to be highly resistant to aquatic hypoxia. In all four species analysed in this study, aquatic oxygen consumption significantly decreased from normoxic levels at water PO2 values near 1 kPa. Air‐breathing activity was observed only in Sturisoma sp. (Rio Negro).
Bernd Pelster +2 more
wiley +1 more source
A Puzzle About Economic Explanation: Examining the Cournot and Bertrand Models of Duopoly Competition [PDF]
, 2017 Economists use various models to explain why it is that firms are capable of pricing above marginal cost. In this paper, we will examine two of them: the Cournot and Bertrand duopoly models. Economists generally accept both models as good explanations of
Nebel, Jonathan
core
Journal of Fish Biology, EarlyView.Abstract A specimen of rosy barb Pethia conchonius of 51 mm standard length, encountered in an urban pond in London, is reported. This small cyprinid is native to lakes and streams in subtropical regions of southern Asia and is commonly sold as an ornamental fish.
Peter J. Barry +3 more
wiley +1 more source
School Science and Mathematics, EarlyView.ABSTRACT Developing teacher noticing with preservice teachers (PSTs) is important work. In this study, we investigated one aspect of teacher noticing, PSTs' responses to early learners’ mathematical thinking during an alternative field experience. PSTs' use of teacher moves occurring in the moment of small group instruction with pre‐kindergarten and ...
Brandy N. Crowley +6 more
wiley +1 more source
Shocked and Scorched: The Tail of a Tadpole in an Interstellar Pond
, 2012 We report multi-wavelength observations of the far-infrared source IRAS 20324+4057, including high-resolution optical imaging with HST, and ground-based near-infrared, millimeter-wave and radio observations.
Bally +17 more
core +1 more source
The principles of systems biology
Experimental Physiology, EarlyView.Abstract Physiological interpretations of Systems Biology have made many advances since the Principles of Systems Biology were first published in this journal in 2008. Those advances show that the main principle, Biological Relativity, is a logical necessity since no system can exist without the form of the system.
Denis Noble, Reine Bourret
wiley +1 more source
Visual Discrimination of Geometric and Complex 2D Shapes in Goldfish (Carassius auratus)
Animal Behavior and Cognition, 2018 Visual object recognition allows fish to locate prey, avoid predators, recognize individuals, choose mates, and navigate. Previous studies have examined shape discrimination in goldfish, but without controlling multiple dimensions of the stimuli to ...
Caroline M. DeLong +4 more
doaj +1 more source
Veterinary Medicine and Science, 2023 Background The beneficial effects of Bacillus subtilis on growth, immune response, and disease resistance against various diseases in different fish species have been proved.
Parisa Shahbazi +9 more
doaj +1 more source
The Influence of Body Size and Hemoglobin Multiplicity on Critical Oxygen Threshold in Red Drum (Sciaenops ocellatus) [PDF]
, 2016 Hypoxia is common in marine environments and fishes use a suite of cardiorespiratory adjustments to defend aerobic metabolism, including reducing standard metabolic rate (SMR), the minimum metabolic rate needed to sustain life at a specified temperature,
Pan, Yihang
core +1 more source