Splitting light pollution: Wavelength effects on the activity of two sandy beach species

Environmental Pollution, Journal Year: 2024, Volume and Issue: 356, P. 124317 - 124317

Published: June 4, 2024

Language: Английский

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In Situ Study on the Influence of a Dark Environment on the Upstream Behaviors of Plateau Fishes in Fishways: A Pilot Study

Fishes, Journal Year: 2025, Volume and Issue: 10(3), P. 136 - 136

Published: March 20, 2025

To help fish to bypass dams and other human-made barriers, some fishways have ingeniously incorporated extended tunnel sections. This innovative design not only optimizes the overall structure of fishway but also significantly reduces disturbances surrounding ecosystem. However, potential challenges posed by long sections upstream migration remain insufficiently studied poorly understood. study conducted in situ experiments utilizing a passive-integrated-transponder (PIT) system quantitatively assess effects dark natural light environments on behavior plateau-endemic fishes (Schizothorax macropogon, Schizothorax waltoni, oconnori) vertical-slot fishway. A 655 m section was selected for experiment, with shading cloth used simulate environment (DE) sections, its removal serving as (NE). The results showed that DE, behaviors S. oconnori were hindered. entry efficiency at experimental segment (Ee) all three species exceeded 65% which higher than NE. passage (Ep) macropogon waltoni no significant difference between DE NE, whereas exhibited difference, an Ep 0% NE 75.0% DE. Additionally, caused temporary disruption diel rhythms species. transit speeds (St) both elevated showing particularly increase; average St (0.080 m/s) much (0.021 m/s). Ridge regression analysis further indicated primary factor influencing had positive effect behavior. Moreover, differences performances different under varying conditions highlighted species-specific sensitivity light. offers key insights canyon hydropower projects highlights tunnel-type restoring river connectivity.

Language: Английский

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Impacts of Artificial Light at Night (ALAN) on coastal ecosystems: A study on the herbivore Ampithoe valida with focus on sex-dependent responses

Marine Pollution Bulletin, Journal Year: 2025, Volume and Issue: 213, P. 117624 - 117624

Published: Feb. 1, 2025

Language: Английский

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Artificial Light at Night (ALAN) alters the behavior and physiology of a sandy beach isopod. Are these effects reversible?

Marine Environmental Research, Journal Year: 2025, Volume and Issue: 208, P. 107130 - 107130

Published: April 6, 2025

Language: Английский

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Artificial light at night alters the feeding activity and two molecular indicators in the plumose sea anemone Metridium senile (L.)

Marine Pollution Bulletin, Journal Year: 2024, Volume and Issue: 202, P. 116352 - 116352

Published: April 10, 2024

Language: Английский

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Behavioural and Transgenerational Effects of Artificial Light at Night (Alan) of Varying Spectral Compositions in Zebrafish (Danio Rerio)

Published: Jan. 1, 2024

Artificial light at night (ALAN) can disrupt the natural behaviour, physiology, and circadian rhythms of organisms exposed to it, therefore presents a significant widespread ecological concern. ALAN typically comprises wide range wavelengths, different wavelengths have effects on clocks. In animals investigated thus far, short middle are intensely involved in synchronisation entrainment, but we still poor understanding how might affect behaviour when ALAN, particular whether some disproportionally detrimental. This study examined behavioural transgenerational 10 zebrafish (Danio rerio), diurnally active model organism. Female were monochromatic spectra constant lux, impact each wavelength individual social behaviours examined. We found strongest artificial (365 470nm), which led individuals groups increasing anxiety-like behaviours. Furthermore, F1 offspring born from ALAN-exposed mothers displayed shorter movement distances moved less despite never being themselves, regardless spectral treatment. Our results highlight both specific broad-spectrum potential for cause disruptions adult their offspring. Short appeared most rapid pronounced effects, even though all treatments had effect F0 fish.

Language: Английский

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Ecological consequences of artificial light at night on coastal species in natural and artificial habitats: a review

Marine Biology, Journal Year: 2024, Volume and Issue: 172(1)

Published: Nov. 26, 2024

Language: Английский

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Embryonic exposure to artificial light at night impairs learning abilities and their covariance with behavioural traits in teleost fish

Biology Letters, Journal Year: 2023, Volume and Issue: 19(11)

Published: Nov. 1, 2023

The natural light cycle has profound effects on animals' cognitive systems. Its alteration owing to human activities, such as artificial at night (ALAN), affects the biodiversity of mammalian and avian species by impairing their functions. impact ALAN cognition, however, not been investigated in aquatic species, spite common occurrence this pollution along water bodies. We exposed eggs a teleost fish (the zebrafish

Language: Английский

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Effects of Artificial Light at Night on Fitness-Related Traits of Sea Urchin (Heliocidaris crassispina)

Animals, Journal Year: 2023, Volume and Issue: 13(19), P. 3035 - 3035

Published: Sept. 27, 2023

Limited data are available regarding the effects of elevated coastal artificial light at night (ALAN) on intertidal echinoderms. In this study, we investigated behavioral, morphological, and physiological responses sea urchin (Heliocidaris crassispina) after continuous exposure to ALAN intensities 0.1, 300, 600 Lux for 6 weeks. Our findings revealed that 300 substantially reduced food consumption, Lantern weight, gonadosomatic index (GSI). On other hand, notably prolonged righting covering response times 5-HIAA/5-HT ratio, while concurrently decreasing body GSI, Pax6 gene expression. These results indicated could cause an adverse effect fitness-related traits, including behavioral responses, growth, reproductive performance, photoreception urchins. The present study provides new insights impact pollution

Language: Английский

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Risk assessment of persistent exposure to artificial light at night revealed altered behavior and metabolic patterns of marine nocturnal shellfish

Ecological Indicators, Journal Year: 2024, Volume and Issue: 160, P. 111807 - 111807

Published: March 1, 2024

The evolvement of urbanization has caused artificial light at night (ALAN) to be one the major pollution sources in cities, resulting numerous environmental concerns. In view increasing intensity and range ALAN, this study aims evaluate influence ALAN on physiology behavior Pacific abalone Haliotis discus hannai, a typical nocturnal marine shellfish. Street lighting (SL6, lights from 18:00 until 00:00; SL12, 06:00 next morning) car (CL, were turned once every hour for 30 s then off) simulated indoors, with natural cycle group (lights 18:00) treated as control (CTR). significantly higher cumulative distance covered along duration movement was observed Group SL12 upon comparison other groups (P < 0.05). Cosine rhythm analysis revealed that peak phase abalone's moved SL6 shifted ZT16:25 ZT15:32, respectively, relative CTR (ZT12:53 ZT13:07). Correlation affirmed melatonin concentrations all negatively correlated moved. Transcriptome sequencing 1599, 2142, 1507, 1676, 2355, 1922 differentially expressed genes vs. CL, SL6, comparisons, respectively. Based enriched Kyoto Encyclopedia Genes Genomes pathways weighted geneco-expression network analysis, quantitative real-time PCR conducted validation expression levels 12 key different groups. Amino acid catabolism protein processing primary used by acquire energy under impact ALAN. targeted metabonomics 20 23 amino acids up-regulated SL6. These results reveal physiological adaptation behavioral mechanisms shellfish they also provide guidance conservation nearshore benthic biodiversity optimization urban schemes.

Language: Английский

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