Effect of a magnetic pulse on orientation behavior in rainbow trout (Oncorhynchus mykiss)

Fitak, Robert R.; Wheeler, Benjamin R.; Johnsen, Sönke

doi:10.1016/j.beproc.2020.104058

Cited by 5 publications

(3 citation statements)

References 36 publications

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“…The experimental observations that magnetic orientation depends on the polarity of the ambient magnetic field in salmon ( Quinn et al 1981 ), subterranean mole-rats ( Marhold et al 1997 ), honey bees ( Kirschvink and Kobayashi-Kirschvink 1991 ), and bats ( Wang et al 2007 ) is consistent with a mechanism based on single-domain magnetite. Furthermore, effects of a strong (100–500 mT) but brief (0.1–5 ms) magnetic pulse (with the potential to change the axis of magnetization of permanent magnetic particles) on magnetic orientation in honeybees ( Kirschvink and Kobayashi-Kirschvink 1991 ), arthropods ( Ernst and Lohmann 2016 ), fish ( Fitak et al 2020 ), turtles ( Irwin and Lohmann 2005 ), birds ( Wiltschko et al 1994 ), mole-rats ( Marhold et al 1997 ), and bats ( Holland et al 2008 ) have been interpreted to support a ferrimagnetic sensory system in these species. Neither induction of electric fields nor radical-pair mechanisms (see below) are thought to lead to a prolonged effect on animal orientation from magnetic pulses, as observed in these experiments.…”

Section: Resultsmentioning

confidence: 99%

Biological Effects of Electric, Magnetic, and Electromagnetic Fields from 0 to 100 MHz on Fauna and Flora: Workshop Report

Pophof¹,

Henschenmacher²,

Kattnig

et al. 2022

Health Physics

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This report summarizes effects of anthropogenic electric, magnetic, and electromagnetic fields in the frequency range from 0 to 100 MHz on flora and fauna, as presented at an international workshop held on 5–7 November in 2019 in Munich, Germany. Such fields may originate from overhead powerlines, earth or sea cables, and from wireless charging systems. Animals and plants react differentially to anthropogenic fields; the mechanisms underlying these responses are still researched actively. Radical pairs and magnetite are discussed mechanisms of magnetoreception in insects, birds, and mammals. Moreover, several insects as well as marine species possess specialized electroreceptors, and behavioral reactions to anthropogenic fields have been reported. Plants react to experimental modifications of their magnetic environment by growth changes. Strong adverse effects of anthropogenic fields have not been described, but knowledge gaps were identified; further studies, aiming at the identification of the interaction mechanisms and the ecological consequences, are recommended.

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Section: Resultsmentioning

confidence: 99%

Biological Effects of Electric, Magnetic, and Electromagnetic Fields from 0 to 100 MHz on Fauna and Flora: Workshop Report

Pophof¹,

Henschenmacher²,

Kattnig

et al. 2022

Health Physics

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“…For example, geomagnetic storm conditions are known to disrupt circadian biochemical processes which are believed to be mediated through melatonin and cryptochrome (Close 2012;Krylov 2017). Simulated geomatic storms alter the behaviour of fish (Fitak et al 2020) and crabs (Muraveiko et al 2013) and have been implicated in the mass stranding of cetaceans (Pulkkinen et al 2020;Zellar et al 2021). There are a number of studies that document developmental effects on fish embryos if exposures occur during early developmental stages; using rudd as a model, researchers have documented reductions in condition indices and morphological abnormalities (Krylov et al 2017 which may be a result of alterations in digestive function (Golovanova et al 2015).…”

Section: Limnic Eruptionsmentioning

confidence: 99%

Consequences of “natural” disasters on aquatic life and habitats

et al. 2023

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“Natural” disasters (also known as geophysical disasters) involve physical processes that have a direct or indirect impact on humans. These events occur rapidly and may have severe consequences for resident flora and fauna as their habitat undergoes dramatic and sudden change. Although most studies have focused on the impact of natural disasters on humans and terrestrial systems, geophysical disasters can also impact aquatic ecosystems. Here we provide a synthesis on the effects of the most common and destructive geophysical disasters on aquatic systems (life and habitat). Our approach spanned realms (i.e., freshwater, estuarine, marine) and taxa (i.e., plants, vertebrates, invertebrates, microbes) and included floods, droughts, wildfires, hurricanes/cyclones/typhoons, tornadoes, dust storms, ice storms, avalanches (snow), landslides, volcanic eruptions, earthquakes (including limnic eruptions), tsunamis, and cosmic events. Many geophysical disasters have dramatic effects on aquatic systems. The evidence base is somewhat limited for some natural disasters because transient events (e.g., tornadoes, floods) are difficult to study. Most natural disaster studies focus on geology/geomorphology and hazard assessment for humans and infrastructure. However, the destruction of aquatic systems can impact humans indirectly through loss of food security, cultural services or livelihoods. Many geophysical disasters interact in complex ways (e.g., wildfires often lead to landslides and flooding) and can be magnified or otherwise mediated by human activities. Our synthesis reveals that geophysical events influence aquatic ecosystems, often in negative ways, yet systems can be resilient provided that effects are not compounded by anthropogenic stressors. It is difficult to predict or prevent geophysical disasters but understanding how aquatic ecosystems are influenced by geophysical events is important given the inherent connection between peoples and aquatic ecosystems.

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“…In recent years it was discovered that animals align their bodies along the Earth's geomagnetic alignment (GMF, [1,2]), but remains one of the most enigmatic of animal senses [3]. These magnetoreception capabilities and mechanisms are attributed mostly to biogenic magnetite [4,5], to magnetic polarity in birds [6], or is based upon blue-light dependent receptors (cryptochromes) located within eyes, proposes the coupling of magnetic sensing with vision (radical pair hypothesis, [7]), in which both magnetic inclination and polarity play an important role [8].…”

Section: Introductionmentioning

confidence: 99%

Magnetic alignment in free-ranging Indian Leopard (Panthera pardus fusca)

Yosef

Kumbhojkar²,

Gurjar³

et al. 2022

PLoS ONE

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The earth’s geomagnetic field (GMF) is known to influence the behaviour of a wide range of species, but remains one of the most enigmatic of animal senses. Animals are known to utilize the GMF for a wide range of survival capabilities such as navigation and orienteering, migration, territoriality, homing, etc. Despite a lot of study in this regard on vertebrates, little is known about the effects of GMF on felids. Hence, we analyzed the body alignment of the Indian Leopard during defecation, and walking along the trails in the Jhalana Reserve Forest in India. Using circular statistics, we found that the leopards aligned their bodies on the north-south axis during defecation (mean azimuth -176.4°), while no such preference was found when walking (mean azimuth 52.9°). Thus we prove that leopards are sensitive to the GMF during basic physiological activities and in this context show similar behaviour to other vertebrates studied to date.

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Effect of a magnetic pulse on orientation behavior in rainbow trout (Oncorhynchus mykiss)

Cited by 5 publications

References 36 publications

Biological Effects of Electric, Magnetic, and Electromagnetic Fields from 0 to 100 MHz on Fauna and Flora: Workshop Report

Biological Effects of Electric, Magnetic, and Electromagnetic Fields from 0 to 100 MHz on Fauna and Flora: Workshop Report

Consequences of “natural” disasters on aquatic life and habitats

Magnetic alignment in free-ranging Indian Leopard (Panthera pardus fusca)

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