Physiological tolerance to hyperthermia and hypoxia and effects on species richness and distribution of rockpool fishes of Loggerhead Key, Dry Tortugas National Park

Rummer, Jodie L.; Fangue, Nann A.; Jordan, Heidi L.; Tiffany, Briana; Blansit, K.J.; Galleher, Stacy N.; Kirkpatrick, Aimee L.; Kizlauskas, A.A.; Pomory, Christopher M.; Bennett, Wayne A.

doi:10.1016/j.jembe.2009.01.015

Cited by 14 publications

(9 citation statements)

References 26 publications

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“…This profile demonstrates that D. aruanus can tolerate temperatures as high as 35–41 °C under conditions of slowly increasing temperatures and adequate acclimation time (>2 weeks, Eme & Bennett, 2009). Similar tolerance levels have also been recorded for other Pomacentridae species such as Chromis atribbata and Pomacentrus variabilis , as well as several species within the Apogonidae, Gobiidae, Haemulidae, Labridae and Lutjanidae families (Mora & Ospina, 2001; Rummer et al ., 2009; Eme & Bennett, 2009). Consequently, given global warming is not expected to increase ocean temperatures to >35 °C, the main problem facing the majority of tropical coral reef fish is likely the loss of physiological performance necessary for ecological survival.…”

Section: Discussionsupporting

confidence: 73%

Increasing ocean temperature reduces the metabolic performance and swimming ability of coral reef damselfishes

Johansen¹,

Jones²

2011

Global Change Biology

169

162

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Tropical coral reef teleosts are exclusively ectotherms and their capacity for physical and physiological performance is therefore directly influenced by ambient temperature. This study examined the effect of increased water temperature to 3 1C above ambient on the swimming and metabolic performance of 10 species of damselfishes (Pomacentridae) representing evolutionary lineages from two subfamilies and four genera. Five distinct performance measures were tested: (a) maximum swimming speed (U crit ), (b) gait-transition speed (the speed at which they change from strictly pectoral to pectoral-and-caudal swimming, U pÀc ), (c) maximum aerobic metabolic rate (MO 2ÀMAX ), (d) resting metabolic rate (MO 2ÀREST ), and (e) aerobic scope (ratio of MO 2ÀMAX to MO 2ÀREST , A SC ). Relative to the control (29 1C), increased temperature (32 1C) had a significant negative effect across all performance measures examined, with the magnitude of the effect varying greatly among closely related species and genera. Specifically, five species spanning three genera (Dascyllus, Neopomacentrus and Pomacentrus) showed severe reductions in swimming performance with U crit reduced in these species by 21.3-27.9% and U pÀc by 32.6-51.3%. Furthermore, five species spanning all four genera showed significant reductions in metabolic performance with aerobic scope reduced by 24.3-64.9%. Comparisons of remaining performance capacities with field conditions indicate that 32 1C water temperatures will leave multiple species with less swimming capacity than required to overcome the water flows commonly found in their respective coral reef habitats. Consequently, unless adaptation is possible, significant loss of species may occur if ocean warming of ! 3 1C arises.

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Section: Discussionsupporting

confidence: 73%

Increasing ocean temperature reduces the metabolic performance and swimming ability of coral reef damselfishes

Johansen¹,

Jones²

2011

Global Change Biology

169

162

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“…water temperature and dissolved oxygen) due to influences of weather such as prolonged exposure to the sun, high‐energy wave action or freshwater run‐off. Although juvenile E. daemelii are temporary residents in rock pools, this study found that they show eurythermic tendencies (tolerance to a range of salinities) and adaption to survive in oxygen‐poor water in their early life history, similar to that found for other species in rock pools (Rummer et al., ).…”

Section: Discussionsupporting

confidence: 79%

Where are the little ones: distribution and abundance of the threatened serranid Epinephelus daemelii (Günther, 1876) in intertidal habitats in New South Wales, Australia

et al. 2014

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SummaryA survey of intertidal habitats, including coastal rock pools, was undertaken across New South Wales (NSW), Australia, February to May 2012, to test the hypothesis that the distribution and abundance of threatened juvenile black cod Epinephelus daemelii (G€ unther, 1876) does not differ across marine bioregions. An assessment was also provided on their habitat use and site fidelity. Various methods were trialled to determine the best method for detecting juvenile E. daemelii, with the most suitable method being the deployment of small baited underwater high definition video cameras for a period of 30 min. Using these baited video cameras, sampling occurred across four bioregions in NSW, covering approximately 800 km of coastline. Within each bioregion, a minimum of nine locations was selected, and at each location a minimum of six intertidal habitats was surveyed for the presence of E. daemelii. Of 412 sites surveyed, a total of 20 juveniles (mean size = 16.7 cm AE 1.1 cm SE) were found in intertidal habitats along approx. 420 km of coastline. The smallest juvenile was L T 3 cm and the largest fish was stereo measured at L T 26.5 cm. E. daemelii were found to tolerate a large range of water quality parameters, particularly temperature (mean 21.7°C AE 0.7 SE, min = 16.8°C and max = 31.2°C) and dissolved oxygen (mean 11.2 mg L À1 AE 1.3 SE, min = 5.7 mg L À1 and max = 19.2 mg L À1). E. daemelii were found in habitats dominated by boulders and overhangs, indicating a preference for structural features that provide solid cover. No E. daemelii were recorded at sites that had algae as the dominant habitat type. Juvenile E. daemelii were found to display site fidelity to rock pool habitats, with two individuals recorded as remaining at their same sites for a period of 471 days, even though the rock pools were open to the ocean at high tides. This study indicates that the abundance of juvenile E. daemelii is low, especially north of Port Stephens where adults are most abundant. Use of the small baited video cameras proved to be a successful sampling method to confirm that juvenile E. daemelii utilise rock pool and shallow reef intertidal habitats in the early stages of their life cycle.

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“…The only exception being B. soporator, previously tested in the Florida Keyes (Rummer et al, 2009). The CTMax value estimated for this species was 40.9°C, at a warming rate of 0.39°C min À 1 , slightly higher than the CTMax values estimated in the present study, 39.3°C, 39.8°C and 39.2°C, estimated at warming rates of 1°C min À 1 , 1°C 30 min À 1 and 1°C h À 1 , respectively.…”

Section: Discussionmentioning

confidence: 99%

“…Becker and Genoway, 1979;Bennett and Judd, 1992;Fangue et al, 2001;Mora and Ospina, 2001;Rummer et al, 2009;Madeira et al, 2012a;Vinagre et al, 2013). It has also been widely used for other aquatic and non-aquatic organisms, such as shrimp, crabs, amphibians, molluscs and insects (e.g.…”

Section: Introductionmentioning

confidence: 99%

Effect of warming rate on the critical thermal maxima of crabs, shrimp and fish

Vinagre

Leal

Mendonça

et al. 2015

Journal of Thermal Biology

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Physiological tolerance to hyperthermia and hypoxia and effects on species richness and distribution of rockpool fishes of Loggerhead Key, Dry Tortugas National Park

Cited by 14 publications

References 26 publications

Increasing ocean temperature reduces the metabolic performance and swimming ability of coral reef damselfishes

Increasing ocean temperature reduces the metabolic performance and swimming ability of coral reef damselfishes

Where are the little ones: distribution and abundance of the threatened serranid Epinephelus daemelii (Günther, 1876) in intertidal habitats in New South Wales, Australia

Effect of warming rate on the critical thermal maxima of crabs, shrimp and fish

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