Preferred temperature and critical thermal maxima of red abalone Haliotis rufescens

Dı́az, Fernando; Río-Portilla, Miguel A. Del; Sierra, Elizabeth; Aguilar, Marisela; Re‐Araujo, Ana Denise

doi:10.1016/s0306-4565(99)00032-7

Cited by 43 publications

(2 citation statements)

References 9 publications

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“…A T opt Φ A for H. rufescens of 18 °C corresponds well with studies on smaller sized specimens in fully aerated experimental systems. Optimal growth rates for juvenile H. rufescens are reported at 18 °C for specimens from southern California 41 and around 17.3 °C for specimens from Morro Bay 42 while the preferred temperature of warm acclimated juveniles from Baja, Mexico is estimated at 18.8 °C 43 . Working with gametes of H. rufescens , Boch et al 44 found that warmer sea water (18 °C) was beneficial as it mitigated the negative effects of low pH on fertilization success.…”

Section: Resultsmentioning

confidence: 98%

Oxygen availability and body mass modulate ectotherm responses to ocean warming

Duncan,

Micheli,

Boag

et al. 2023

Nat Commun

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In an ocean that is rapidly warming and losing oxygen, accurate forecasting of species’ responses must consider how this environmental change affects fundamental aspects of their physiology. Here, we develop an absolute metabolic index (ΦA) that quantifies how ocean temperature, dissolved oxygen and organismal mass interact to constrain the total oxygen budget an organism can use to fuel sustainable levels of aerobic metabolism. We calibrate species-specific parameters of ΦA with physiological measurements for red abalone (Haliotis rufescens) and purple urchin (Strongylocentrotus purpuratus). ΦA models highlight that the temperature where oxygen supply is greatest shifts cooler when water loses oxygen or organisms grow larger, providing a mechanistic explanation for observed thermal preference patterns. Viable habitat forecasts are disproportionally deleterious for red abalone, revealing how species-specific physiologies modulate the intensity of a common climate signal, captured in the newly developed ΦA framework.

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Section: Resultsmentioning

confidence: 98%

Oxygen availability and body mass modulate ectotherm responses to ocean warming

Duncan,

Micheli,

Boag

et al. 2023

Nat Commun

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“…Each aquarium was thermostatically controlled with a 1000 W heater and an air stone (15 × 5 × 5 cm). The temperature was raised from the acclimation temperatures of 16˚C, 19˚C and 22˚C ± 1˚C at a rate of 1˚C every 15 minutes [30,35,36].…”

Section: Sea Hare and Experimental Designmentioning

confidence: 99%

Thermal preference, tolerance and temperature-dependent respiration in the California sea hare <i>Aplysia californica</i>

Re¹,

Dı́az²,

Salas-Garza³

et al. 2013

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The thermoregulatory behavior of sea hare Aplysia californica was determined in a horizontal thermal gradient; with a preferred temperature (PT) of 18.3˚C for the day cycle and 20.8˚C for the night cycle. The displacement velocity demonstrated an initial rate of 30 cm•h −1 and gradually the velocity diminished to 18 cm•h −1 with several fluctuations mainly at 02:00 am. Critical Temperature Maxima (CTMax refers to the temperature point where at least 50% of the experimental group have a loss of attachment) was measured at three acclimation temperatures (16˚C, 19˚C and 22˚C). At the lowest acclimation temperature (16˚C), 50% of the experimental group had an attachment loss at CTMax 32.7˚C, and in a higher acclimation temperature (22˚C) CTMax was 36.2˚C. The Oxygen Consumption Rate (OCR) was closely correlated to acclimation temperature, and at 16˚C and 19˚C sea hare had a relatively stable metabolic rate, with OCR increasing to 9 mg O 2 h −1 •kg −1 w.w. in a higher acclimation temperature.

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Green abalone, Haliotis fulgens infected with the agent of withering syndrome do not express disease signs under a temperature regime permissive for red abalone, Haliotis rufescens

et al. 2009

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All California abalone species have been shown to be susceptible to infection with the bacterial agent of abalone withering syndrome (WS), although expression of signs of the disease may vary between species and with environmental conditions. We examined thermal modulation of WS expression in green abalone Haliotis fulgens at temperatures mimicking El Niño (18.0°C) and La Niña (14.2°C) events in southern California. In contrast to results obtained from previous experiments with red abalone, H. rufescens, the higher temperature did not result in higher infection intensities of the causative agent of the disease nor increase in clinical signs of disease. These results demonstrate clear differences in thermal regulation of disease expression between abalone species, and provide further data suggesting that green abalone should be a target species of recovery efforts in southern California, where WS is endemic.

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Preferred temperature and critical thermal maxima of red abalone Haliotis rufescens

Cited by 43 publications

References 9 publications

Oxygen availability and body mass modulate ectotherm responses to ocean warming

Oxygen availability and body mass modulate ectotherm responses to ocean warming

Thermal preference, tolerance and temperature-dependent respiration in the California sea hare <i>Aplysia californica</i>

Green abalone, Haliotis fulgens infected with the agent of withering syndrome do not express disease signs under a temperature regime permissive for red abalone, Haliotis rufescens

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Preferred temperature and critical thermal maxima of red abalone Haliotis rufescens

Cited by 43 publications

References 9 publications

Oxygen availability and body mass modulate ectotherm responses to ocean warming

Oxygen availability and body mass modulate ectotherm responses to ocean warming

Thermal preference, tolerance and temperature-dependent respiration in the California sea hare &lt;i&gt;Aplysia californica&lt;/i&gt;

Green abalone, Haliotis fulgens infected with the agent of withering syndrome do not express disease signs under a temperature regime permissive for red abalone, Haliotis rufescens

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Thermal preference, tolerance and temperature-dependent respiration in the California sea hare <i>Aplysia californica</i>