The effects of temperature and pressure acclimation on the temperature and pressure tolerance of the shallow-water shrimp Palaemonetes varians

Hydrostatic pressure and temperature affect the tolerance of the free-living marine nematode Halomonhystera disjuncta to acute copper exposure

“…with regard to electrochemical and hydrophobic interactions in biological systems (Brown and Thatje, 2014;Pradillon and Gaill, 2007). Nevertheless, shallow-water marine invertebrates seem to have a wider tolerance to increased hydrostatic pressure than might be predicted a priori (Brown and Thatje, 2014;Mestre et al, 2013Mestre et al, , 2009Smith et al, 2015) and are able to increase their tolerance after a short acclimation period (New et al, 2014). Similarly, in this study, mortality and activity of H. disjuncta in treatments without Cu 2+ contamination remained unaffected by elevated pressure.…”

The Effects of Temperature and Hydrostatic Pressure on Metal Toxicity: Insights into Toxicity in the Deep Sea

“…The temperature regimes experienced by P. varians and hydrothermal vent shrimp are of similar range, and the acute temperature tolerance of the shallow-water shrimp and the hydrothermal vent shrimp are similar at native hydrostatic pressures [24][25][26][27] . Further, P. varians' sustained hyperbaric tolerance extends to the depth of some hydrothermal vents inhabited by vent shrimp 28,39,40 . Therefore, the aim of this study was to utilise P. varians as a model organism to determine the effects of temperature and hydrostatic pressure on metal toxicity.…”

“…Although Rimicaris and Mirocaris spp. appear to demonstrate higher maximum critical temperatures than shallow-water shrimp [24][25][26] , this may be an artefact of acclimation to different temperature: temperature acclimation is an extended process which affects tolerance to a range of stressors 27,28 . Indeed, the critical thermal maximum reported for Mirocaris fortunata matches the modelled critical thermal maximum of shallow-water shrimp acclimated to 19°C 27 , M. fortunata's preferred temperature 29 .…”

“…However, M. fortunata does appear to have evolved metabolic adaptations to the acute spatial and temporal scale of temperature changes inherent in the vent environment, demonstrating reduced metabolic sensitivity to acute temperature shifts 27,29,30 . Deep-sea hydrothermal vent shrimp appear adapted to high hydrostatic pressure too: the bathymetric distribution of the hydrothermal vent shrimp extends beyond the hydrostatic pressure tolerance of shallow-water shrimp at in situ temperatures 26,28 , with some species thought to be excluded from shallow vent fields by relatively low hydrostatic pressure 31 . Whilst bresiliid shrimp constitute a key component of many active hydrothermal vent communities 32 , other phylogenetically related carideans 18 are also an important constituent of inactive vent and wider deep-sea communities 33,34 , strengthening the case for utilising shrimp in a comparative experimental approach.…”

“…varians has a close phylogenetic relationship to both hydrothermal vent shrimp species and non-vent deep-sea species 17,18 , making it an excellent comparator for deep-living shrimps 29,37,38 . Indeed, the physiology of P. varians with respect to temperature and hydrostatic pressure is well studied [26][27][28][29][30][39][40][41][42] . The temperature regimes experienced by P. varians and hydrothermal vent shrimp are of similar range, and the acute temperature tolerance of the shallow-water shrimp and the hydrothermal vent shrimp are similar at native hydrostatic pressures [24][25][26][27] .…”