scholarly journals Short-term colour vision plasticity on the reef: changes in opsin expression under varying light conditions differ between ecologically distinct fish species

2018 ◽  
Vol 221 (22) ◽  
pp. jeb175281 ◽  
Author(s):  
Martin Luehrmann ◽  
Sara M. Stieb ◽  
Karen L. Carleton ◽  
Alisa Pietzker ◽  
Karen L. Cheney ◽  
...  
Keyword(s):  
Fish Species ◽  
Colour Vision ◽  
Light Conditions ◽  
Short Term ◽  
Opsin Expression

Short-term survival, space use and diel patterns of coastal fish species revealed from ‘solo datasets’

2021 ◽  
pp. 1-9
Author(s):  
Gonzalo Mucientes ◽  
Katharina Leeb ◽  
Fiona-Elaine Straßer ◽  
David Villegas-Ríos ◽  
Alexandre Alonso-Fernández
Keyword(s):  
Fish Species ◽  
Space Use ◽  
Short Term ◽  
Term Survival ◽  
Coastal Fish ◽  
Diel Patterns ◽  
Survival Space ◽  
Short Term Survival

scholarly journals Rapid recovery following short-term acoustic disturbance in two fish species

2016 ◽  
Vol 3 (1) ◽  
pp. 150686 ◽  
Author(s):  
Rick Bruintjes ◽  
Julia Purser ◽  
Kirsty A. Everley ◽  
Stephanie Mangan ◽  
Stephen D. Simpson ◽  
...  
Keyword(s):  
Fish Species ◽  
Noise Exposure ◽  
Acoustic Noise ◽  
Experimental Studies ◽  
Ventilation Rate ◽  
Rapid Recovery ◽  
Ambient Conditions ◽  
Short Term ◽  
Additional Noise ◽  
Startle Latency

Noise from human activities is known to impact organisms in a variety of taxa, but most experimental studies on the behavioural effects of noise have focused on examining responses associated with the period of actual exposure. Unlike most pollutants, acoustic noise is generally short-lived, usually dissipating quickly after the source is turned off or leaves the area. In a series of experiments, we use established experimental paradigms to examine how fish behaviour and physiology are affected, both during short-term (2 min) exposure to playback of recordings of anthropogenic noise sources and in the immediate aftermath of noise exposure. We considered the anti-predator response and ventilation rate of juvenile European eels ( Anguilla anguilla ) and ventilation rate of juvenile European seabass ( Dicentrarchus labrax ). As previously found, additional-noise exposure decreased eel anti-predator responses, increased startle latency and increased ventilation rate relative to ambient-noise-exposed controls. Our results show for the first time that those effects quickly dissipated; eels showed rapid recovery of startle responses and startle latency, and rapid albeit incomplete recovery of ventilation rate in the 2 min after noise cessation. Seabass in both laboratory and open-water conditions showed an increased ventilation rate during playback of additional noise compared with ambient conditions. However, within 2 min of noise cessation, ventilation rate showed complete recovery to levels equivalent to ambient-exposed control individuals. Care should be taken in generalizing these rapid-recovery results, as individuals might have accrued other costs during noise exposure and other species might show different recovery times. Nonetheless, our results from two different fish species provide tentative cause for optimism with respect to recovery following short-duration noise exposure, and suggest that considering periods following noise exposures could be important for mitigation and management decisions.

Short-term effects of neuroactive pharmaceutical drugs on a fish species: Biochemical and behavioural effects

2013 ◽  
Vol 144-145 ◽  
pp. 218-229 ◽  
Author(s):  
F.P. Brandão ◽  
S. Rodrigues ◽  
B.B. Castro ◽  
F. Gonçalves ◽  
S.C. Antunes ◽  
...  
Keyword(s):  
Fish Species ◽  
Pharmaceutical Drugs ◽  
Short Term ◽  
Behavioural Effects ◽  
Short Term Effects

scholarly journals Limits of cross-modal plasticity? Short-term visual deprivation does not enhance cardiac interoception, thermosensation, or tactile spatial acuity

2021 ◽  
Author(s):  
Dominika Radziun ◽  
Laura Crucianelli ◽  
H. Henrik Ehrsson
Keyword(s):  
Healthy Volunteers ◽  
Washout Period ◽  
Visual Deprivation ◽  
Control Group ◽  
Light Conditions ◽  
Complete Darkness ◽  
Short Term ◽  
Experimental Conditions ◽  
Normal Light ◽  
Experimental Group

In the present study, we investigated the effect of short-term visual deprivation on discriminative touch, cardiac interoception, and thermosensation by asking 64 healthy volunteers to perform four behavioral tasks. The experimental group contained 32 subjects who were blindfolded and kept in complete darkness for 110 minutes, while the control group consisted of 32 volunteers who were not blindfolded but were otherwise kept under identical experimental conditions. Both groups performed the required tasks three times: before and directly after deprivation (or control) and after an additional washout period of 40 minutes, in which all participants were exposed to normal light conditions. Our results showed that short-term visual deprivation had no effect on any of the senses tested. This finding suggests that short-term visual deprivation does not modulate basic bodily senses and extends this principle beyond tactile processing to the interoceptive modalities of cardiac and thermal sensations.

scholarly journals Effects of short-term fasting on spontaneous activity and excess post-exercise oxygen consumption in four juvenile fish species with different foraging strategies

Biology Open ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. bio051755
Author(s):  
Xiuming Li ◽  
Yaoguang Zhang ◽  
Shijian Fu
Keyword(s):  
Oxygen Consumption ◽  
Spontaneous Activity ◽  
Fish Species ◽  
Grass Carp ◽  
Silver Carp ◽  
Foraging Strategies ◽  
Control Group ◽  
Short Term ◽  
Post Exercise ◽  
Black Carp

ABSTRACTTo investigate the effects of short-term fasting on spontaneous activity and excess post-exercise oxygen consumption (EPOC) in sit-and-wait carnivorous southern catfish (Silurus meridionalis), active carnivorous black carp (Mylopharyngodon piceus), active herbivorous grass carp (Ctenopharyngodon idellus) and active filter-feeding silver carp (Hypophthalmichthys molitrix), each species was divided into a control group and a fasting group (deprived of food for 14 days). Both groups were maintained at 25°C and, at the end of the experimental period, the total movement distance (TMD), percent time spent moving (PTM), ventilation frequency (Vf), pre-exercise oxygen consumption (M(•)O2) and EPOC response of the experimental fish were measured. The TMD and PTM obtained for the control group of southern catfish were lower than those found for the control groups of the three active species. Short-term fasting resulted in decreases in the TMD and PTM of the southern catfish and black carp and increases in the TMD of grass carp and silver carp. The Vf of southern catfish was significantly higher than those of grass carp and silver carp, whereas the latter was also significantly higher than that of black carp. Short-term fasting resulted in significant increases in the Vf and decreases in the pre-exercise M(•)O2 of southern catfish and silver carp. Southern catfish and black carp exhibited lower peak post-exercise M(•)O2 and recovery rates, and relatively higher EPOC magnitudes than grass carp and silver carp. Short-term fasting exerted no significant effects on the peak post-exercise M(•)O2, but resulted in relatively higher EPOC magnitudes in the four fish species. These results suggest that (1) different fish species exhibit significantly different levels of spontaneous activity and post-exercise M(•)O2 profiles with different characteristics and that (2) short-term fasting exerts different effects on the level of spontaneous activity in four fish species with different foraging strategies.

scholarly journals High hydrostatic pressure effects on arginine vasotocin levels in fish

2020 ◽  
Vol 29 ◽  
pp. 165-173
Author(s):  
A Rodríguez-Illamola ◽  
JM Míguez ◽  
J Coimbra ◽  
JM Wilson
Keyword(s):  
High Pressure ◽  
Hydrostatic Pressure ◽  
Fish Species ◽  
High Hydrostatic Pressure ◽  
Plasma Cortisol ◽  
Arginine Vasotocin ◽  
Pressure Effects ◽  
Freshwater Species ◽  
Short Term ◽  
Short Term Exposure

The present study investigates the response of the hormone arginine vasotocin (AVT), the non-mammalian antidiuretic hormone, to the acclimation of fish to high hydrostatic pressure (5.1 MPa). Two fish species with different osmoregulatory strategies, the lesser spotted dogfish Scyliorhinus canicula, a marine osmoconforming chondrichthyan species adapted for migration to deep waters, and the rainbow trout Oncorhynchus mykiss, a pressure-sensitive freshwater species, were selected for study. Fish were exposed to hydrostatic pressures of either 0.1 (control) or 5.1 MPa in hydrostatic chambers for up to 2 wk at their appropriate salinities. Plasma cortisol was measured in trout, and plasma chloride, sodium and potassium were measured in both fish species. A transient high level of plasma AVT was found in dogfish and in trout after 1 and 3 d of exposure to high hydrostatic pressure, which returned to basal levels by 14 d of exposure. In contrast, pituitary AVT content was reduced after short-term exposure in dogfish, while in trout, lower expression was found in high pressure than in control conditions, independently of exposure time. In dogfish, pituitary AVT levels recovered by 14 d under high hydrostatic pressure. No changes in plasma cortisol (trout) or ions (both species) were observed. These initial increases of the AVT release from the pituitary during fish acclimation to high pressure suggest that it works as a physiological short-term response to reduce water loss and equilibrate ion osmotic balance.

scholarly journals PsbS Dependence in Lipid and Pigment Composition in Rice Plants

2021 ◽  
Vol 7 (9) ◽  
pp. 59-68
Author(s):  
Pashayeva
Keyword(s):  
Lipid Level ◽  
Ph Sensor ◽  
Photosynthetic Apparatus ◽  
Photochemical Quenching ◽  
Light Conditions ◽  
Pigment Composition ◽  
Short Term ◽  
Non Photochemical Quenching ◽  
Psbs Protein

Plants acclimate to fluctuations in light conditions by adjusting their photosynthetic apparatus. When the light intensity exceeds, an unbalanced excitation of the two photosystems occurs. It results in reduced photosynthetic efficiency. Photosystem II (PSII) is the most susceptible and dynamically regulated part of the light reactions in the thylakoid membrane. Non-photochemical quenching of chlorophyll fluorescence (NPQ) is one of the short-term photoprotective mechanisms, which consist of the number of components. The strongest NPQ component — qE is localized in the PSII antenna and induced in plants by lumen acidification, the activation of the pH sensor PsbS, and the conversion of the violaxanthin to zeaxanthin within the xanthophyll cycle. Here, I present data that characterizes the role of the PsbS protein in organization of PSII structural components in isolated PSII-enriched membranes. The preparations were isolated from wild-type (WT) and PsbS-less (PsbS-KO) mutant rice plant. Based on the obtained results, the PSII-enriched membranes from WT and PsbS-KO differ as in the level of lipids, also in carotenoids. I conclude that the PsbS-dependent changes in membrane fluidity in PsbS-KO mutant plants compensated with increased lipid level in mutant plants.

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