Magnetic Alignment in Carps: Evidence from the Czech Christmas Fish Market

Hart, Vlastimil; Kušta, Tomáš; Němec, Pavel; Bláhová, Veronika; Ježek, Miloš; Nováková, Petra; Begall, Sabine; Červený, Jaroslav; Hanzal, Vladimír; Malkemper, E. Pascal; Štípek, Kamil; Vole, Christiane; Burda, Hynek

doi:10.1371/journal.pone.0051100

Cited by 41 publications

(18 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…, Hart et al. ), and as wild boars and warthogs are social animals that forage and rest in groups, MA might serve this function in these species. Antiparallel orientation of pairs can be interpreted as an antipredator strategy.…”

Section: Discussionmentioning

confidence: 99%

“…Nevertheless, warthogs would also benefit from a landmarkindependent navigation system, for migration and for facilitated navigation and optimal space use within their home ranges. MA has been proposed as a means to prepare co-ordinated flight responses in herding animals (Begall et al 2008, Hart et al 2012, and as wild boars and warthogs are social animals that forage and rest in groups, MA might serve this function in these species. Antiparallel orientation of pairs can be interpreted as an antipredator strategy.…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Magnetic alignment in warthogs Phacochoerus africanus and wild boars Sus scrofa

et al. 2016

Self Cite

View full text Add to dashboard Cite

Magnetic alignment (MA) results from the preference of animals to align themselves along the field lines of the geomagnetic field, a behavioural expression of a magnetic sense. MA is well documented for ruminants and might demonstrate a general magnetic sensory ability among artiodactyls. We measured body‐axis alignment in 1614 foraging or resting wild boars Sus scrofa, 1849 wild boar beds, and 1347 warthogs Phacochoerus africanus, and found a highly significant north–south preference. The magnetic field was the only common denominator of all observations. Thus, we provide the first data suggesting a magnetic sense in the Suidae.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Magnetic alignment in warthogs Phacochoerus africanus and wild boars Sus scrofa

et al. 2016

Self Cite

View full text Add to dashboard Cite

show abstract

“…NNE-SSW deflection of the preferred (landing) axis from the “ideal” N-S axis, observed in Europe is a phenomenon which we encounter also in magnetic alignment of diverse other animal species in diverse behavioural contexts: in the grazing and resting cattle, red deer, and roe deer [5-8], hunting foxes [9] or schooling carps [10]. Interestingly, while the mallards in all countries of the eastern hemisphere preferred a NNE-SSW landing axis, the mallards from western Canada and water birds form southern Botswana, i.e.…”

Section: Discussionmentioning

confidence: 99%

Directional compass preference for landing in water birds

et al. 2013

Self Cite

View full text Add to dashboard Cite

IntroductionLanding flight in birds is demanding on visual control of velocity, distance to target, and slope of descent. Birds flying in flocks must also keep a common course of landing in order to avoid collisions. Whereas the wind direction may provide a cue for landing, the nature of the landing direction indicator under windless conditions has been unknown. We recorded and analysed landing directions of 3,338 flocks in 14 species of water birds in eight countries.ResultsWe show that the preferred landing direction, independently of the direction from which the birds have arrived, is along the north-south axis. We analysed the effect of the time of the year, time of the day (and thus sun position), weather (sunny versus overcast), light breeze, locality, latitude, and magnetic declination in 2,431 flocks of mallards (Anas platyrhynchos) and found no systematic effect of these factors upon the preferred direction of landing. We found that magnetic North was a better predictor for landing direction than geographic North.ConclusionsIn absence of any other common denominator determining the landing direction, the alignment with the magnetic field lines seems to be the most plausible if not the only explanation for the directional landing preference under windless and overcast conditions and we suggest that the magnetic field thus provides a landing direction indicator.

show abstract

“…Directional bearings were measured in 14,537 individuals in 25 different locations. It was found that the C. carpio showed specific preference for alignment in accordance with the lines of the geomagnetic field; i.e ., N–S (Hart et al, ).…”

Section: Behaviour Of Fry and Adult Fishes In Magnetic Fieldsmentioning

confidence: 99%

Magnetoreception in fish

Formicki

Korzelecka-Orkisz

Tański

2019

Journal of Fish Biology

View full text Add to dashboard Cite

Magnetoreception is the ability of organisms to perceive magnetic fields in the surrounding environment and changes in its properties such as field direction, intensity and gradient, where the effect on organisms can manifest as an array of reactions. As the magnetic sense is found in many taxa, both evolutionarily young and old, it can be assumed that magnetoreception came into existence as one of the first sensory systems. Many studies on the effect of magnetic fields on fishes have considered both fishes that migrate for long distances and those that are more or less sedentary. Research has focused on tracing the perception of the geomagnetic field by fishes and understanding magnetic fields that are smaller and larger than the ambient Earth's geomagnetic field. The question of the effect of magnetic fields of values higher than the Earth's is gaining importance with the increasing effect of anthropogenic magnetic and electromagnetic fields in aquatic ecosystems. This review draws together the results of studies on the effect and reception of natural and human‐generated magnetic fields on fishes at various stages of ontogeny, chronologically arranged from gametes, through embryonic development, embryonic and larval motor function, directional reactions of embryos and larvae, orientation of fishes, to the mechanisms of magnetic field reception. The present state of knowledge indicates a common nature of effect on various ontogenetic stages of fishes. However, understanding of the mechanisms of magnetic sense in fishes and its relevance for ecological outcomes highlights that further progress requires more detailed research.

show abstract

Magnetic Alignment in Carps: Evidence from the Czech Christmas Fish Market

Cited by 41 publications

References 46 publications

Magnetic alignment in warthogs Phacochoerus africanus and wild boars Sus scrofa

Magnetic alignment in warthogs Phacochoerus africanus and wild boars Sus scrofa

Directional compass preference for landing in water birds

Magnetoreception in fish

Contact Info

Product

Resources

About