Temperature-growth performance curves for a coral reef fish, Acanthochromis polyacanthus

Zarco‐Perello, Salvador; Pratchett, Morgan S.; Liao, Vetea

doi:10.3755/galaxea.14.97

Cited by 16 publications

(10 citation statements)

References 36 publications

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“…For most ectothermic animals, including fishes, metabolic rates and processes are directly related to temperature, which, in turn, influences movement (Johansen, Messmer, Coker, Hoey, & Pratchett, 2014), food intake (Scott, Heupel, Tobin, & Pratchett, 2017), reproduction (Donelson, Mccormick, Booth, & Munday, 2014), growth (Zarco-Perello, Pratchett, & Liao, 2012) and survival (Payne et al, 2016). The relationship between temperature and individual performance is however, nonlinear, whereby exposure to unusually high temperatures may have significant adverse effects on fitness and survival (e.g., Peck, Huebert, & Llopiz, ;Messmer et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Latitudinal and seasonal variation in space use by a large, predatory reef fish,Plectropomus leopardus

et al. 2019

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Temperature directly affects the metabolic rate and resource requirements of ectothermic animals, which is likely to influence their movement and habitat use. Space use is a fundamental component of an animal’s ecology, and the extent of an animal’s home range has consequences for individual distributions, community structure and ecosystem function. As ocean temperatures continue to rise as a result of global warming, determining the effects of temperature on space use and movement patterns of important fisheries species is vital. Our aim was to investigate the spatial and temporal variation in space use by a tropical fisheries species, the leopard coralgrouper (Plectropomus leopardus), from two latitudinally distinct locations on Australia’s Great Barrier Reef to determine the potential response of large‐bodied tropical fishes to ocean warming through behavioural modification. Using passive acoustic telemetry of 36 tagged individuals, we found that both core use areas (50%KUD) and home range extent (95%KUD) varied with respect to location, season, body size and temperature. Average home range extent (95%KUD) for tagged P. leopardus was 0.32 km2 at the high‐latitude location (Heron Island) compared to 0.23 km2 at the low‐latitude location (Opal Reef). However, core use areas (50%KUD) did not differ significantly between the two locations. Seasonal differences were also apparent at both locations with P. leopardusshowing contraction in home range extent during the summertime. This effect was most pronounced at the low‐latitude location where home range was significantly reduced during summer when temperatures exceeded 27°C. Taken together, our findings indicate that higher ambient temperature may elicit a sustained and significant decline in space use by a commercially important reef fish. Given projected increases in ocean temperature due to global climate change, large‐bodied reef fishes may be increasingly constrained in their movement and space use, which will have ramifications for individual fitness, population viability, fisheries productivity and ecological function. A plain language summary is available for this article.

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Section: Introductionmentioning

confidence: 99%

Latitudinal and seasonal variation in space use by a large, predatory reef fish,Plectropomus leopardus

et al. 2019

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“…Capacity for acclimation may be extremely limited for stenothermal tropical coral reef fishes; studies have already shown that temperatures just 2-3°C above annual summer maxima can compromise a wide range of life history traits including swimming, growth, activity and reproduction (Munday et al, 2008;Johansen & Jones, 2011;Donelson et al, 2012b;Zarco-Perell o et al, 2012;Johansen et al, 2013Johansen et al, , 2015Rummer et al, 2014). These important traits are supported by the animal's aerobic metabolic scope (AMS), which is essentially the capacity to direct energy toward critical tasks beyond that required for basic maintenance.…”

Section: Introductionmentioning

confidence: 99%

Adapt, move or die – how will tropical coral reef fishes cope with ocean warming?

Habary

Johansen

Nay

et al. 2016

Global Change Biology

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Previous studies hailed thermal tolerance and the capacity for organisms to acclimate and adapt as the primary pathways for species survival under climate change. Here we challenge this theory. Over the past decade, more than 365 tropical stenothermal fish species have been documented moving poleward, away from ocean warming hotspots where temperatures 2-3 °C above long-term annual means can compromise critical physiological processes. We examined the capacity of a model species - a thermally sensitive coral reef fish, Chromis viridis (Pomacentridae) - to use preference behaviour to regulate its body temperature. Movement could potentially circumvent the physiological stress response associated with elevated temperatures and may be a strategy relied upon before genetic adaptation can be effectuated. Individuals were maintained at one of six temperatures (23, 25, 27, 29, 31 and 33 °C) for at least 6 weeks. We compared the relative importance of acclimation temperature to changes in upper critical thermal limits, aerobic metabolic scope and thermal preference. While acclimation temperature positively affected the upper critical thermal limit, neither aerobic metabolic scope nor thermal preference exhibited such plasticity. Importantly, when given the choice to stay in a habitat reflecting their acclimation temperatures or relocate, fish acclimated to end-of-century predicted temperatures (i.e. 31 or 33 °C) preferentially sought out cooler temperatures, those equivalent to long-term summer averages in their natural habitats (~29 °C). This was also the temperature providing the greatest aerobic metabolic scope and body condition across all treatments. Consequently, acclimation can confer plasticity in some performance traits, but may be an unreliable indicator of the ultimate survival and distribution of mobile stenothermal species under global warming. Conversely, thermal preference can arise long before, and remain long after, the harmful effects of elevated ocean temperatures take hold and may be the primary driver of the escalating poleward migration of species.

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“…For coral reef fishes, rising ocean temperatures may not be immediately lethal (Mora & Osp ına, 2001), but could have significant impacts on individual performance that will ultimately affect population demography and biogeographic distributions (Munday et al, 2008b;Nilsson et al, 2009). For example, an increase in average temperature of 2-3°C significantly compromises growth and reproduction of some species (Munday et al, 2008a;Donelson et al, 2010;Pankhurst & Munday, 2011;Rushworth et al, 2011;Zarco-Perell o et al, 2012). The mechanistic explanation for the effects on individual performance may be related to how temperature influences O 2 uptake, transport, and delivery, also known as oxygen-and capacitylimited thermal tolerance (OCLTT) (P€ ortner, 2001;P€ ortner & Knust, 2007;P€ ortner & Farrell, 2008;Eliason et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Life on the edge: thermal optima for aerobic scope of equatorial reef fishes are close to current day temperatures

Rummer

Couturier

Stecyk

et al. 2013

Global Change Biology

209

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Equatorial populations of marine species are predicted to be most impacted by global warming because they could be adapted to a narrow range of temperatures in their local environment. We investigated the thermal range at which aerobic metabolic performance is optimum in equatorial populations of coral reef fish in northern Papua New Guinea. Four species of damsel fishes and two species of cardinal fishes were held for 14d at 29, 31, 33, and 34°C, which incorporated their existing thermal range (29–31°C) as well as projected increases in ocean surface temperatures of up to 3°C by the end of this century. Resting and maximum oxygen consumption rates were measured for each species at each temperature and used to calculate the thermal reaction norm of aerobic scope. Our results indicate that one of the six species, Chromisatripectoralis, is already living above its thermal optimum of 29°C. The other five species appeared to be living close to their thermal optima (approximately 31°C). Aerobic scope was significantly reduced in all species, and approached zero for two species at 3°C above current-day temperatures. One species was unable to survive even short-term exposure to 34°C. Our results indicate that low-latitude reef fish populations are living close to their thermal optima and may be more sensitive to ocean warming than higher-latitude populations. Even relatively small temperature increases (2–3°C) could result in population declines and potentially redistribution of equatorial species to higher latitudes if adaptation cannot keep pace.

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Temperature-growth performance curves for a coral reef fish, Acanthochromis polyacanthus

Cited by 16 publications

References 36 publications

Latitudinal and seasonal variation in space use by a large, predatory reef fish,Plectropomus leopardus

Latitudinal and seasonal variation in space use by a large, predatory reef fish,Plectropomus leopardus

Adapt, move or die – how will tropical coral reef fishes cope with ocean warming?

Life on the edge: thermal optima for aerobic scope of equatorial reef fishes are close to current day temperatures

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