Abalone under moderate heat stress have elevated metabolic rates and changes to digestive enzyme activities

Frederick, Alyssa R.; Lee, Ariana M.; Wehrle, Beck A.; Catabay, Caitlyn C.; Rankins, Daniel R.; Clements, Kendall D.; German, Donovan P.

doi:10.1016/j.cbpa.2022.111230

Cited by 9 publications

(7 citation statements)

References 85 publications

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“…This debilitating syndrome leads to starvation, anorexia, weakness, and foot atrophy, resulting in alarmingly high mortality rates that have hastened the decline of abalone populations, both in the wild and captivity (Di et al, 2016;Crosson and Friedman, 2018;Frederick et al, 2022a). Furthermore, abalone species along the California coastline, now considered endangered or critically endangered, exhibit several detrimental effects as ocean temperatures continue to rise (Rogers-Bennett et al, 2010;Frederick et al, 2022b).…”

Section: Introductionmentioning

confidence: 99%

Temperature-induced variations in dulse (Devaleraea mollis) nutrition provide indirect benefits on juvenile red abalone (Haliotis rufescens) Growth

Rizzo,

Beckert,

Boles

et al. 2024

Front. Mar. Sci.

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Changes in climate conditions can have cascading repercussions for organismal performance and survival, altering the productivity of aquatic systems. While numerous studies have examined the direct effects of temperature on species fitness, fewer studies have analyzed how individual impacts may translate to downstream primary consumers. Temperature-induced changes in the nutritional quality of seaweed may cause critical shifts in energy and nutrient availability for these consumers. A multifaceted experiment was conducted to assess the indirect impacts of California’s coastal climate conditions on abalone growth. This experiment fed juvenile red abalone (Haliotis rufescens) of two different size classes in ambient water conditions with the seaweed dulse (Devaleraea mollis), conditioned at 13°C, 15°C, and 17°C for 92 days. Nutritional analyses revealed significantly higher protein and nitrogen content in the 17°C dulse culture than in the 15°C and 13°C cultures, and no significant differences in carbohydrates. Furthermore, analyses on body weight ratio and condition factor indicate that juvenile red abalone of smaller size display significantly better growth and condition when fed dulse cultured at higher temperatures. Differences between size classes suggest that temperature changes, and subsequent shifts in the nutritional composition of dulse, may have greater impacts on smaller, younger red abalone.

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Section: Introductionmentioning

confidence: 99%

Temperature-induced variations in dulse (Devaleraea mollis) nutrition provide indirect benefits on juvenile red abalone (Haliotis rufescens) Growth

Rizzo,

Beckert,

Boles

et al. 2024

Front. Mar. Sci.

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“…Digestive enzyme activity of abalone, as in other species, is significantly influenced by diet (Bansemer et al, 2016;Erasmus et al, 1997;García-Carreño et al, 2003;Garcia-Esquivel & Felbeck, 2006;Knauer et al, 1996) and potentially thermal stress (Frederick et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

“…Digestion and utilisation of formulated diets by abalone depend on numerous factors, including digestive enzyme activity and enzyme‐substrate contact time (Currie et al., 2015; Fountoulaki et al., 2005). Digestive enzyme activity of abalone, as in other species, is significantly influenced by diet (Bansemer et al., 2016; Erasmus et al., 1997; García‐Carreño et al., 2003; Garcia‐Esquivel & Felbeck, 2006; Knauer et al., 1996) and potentially thermal stress (Frederick et al., 2022). The natural diet of abalone consists of macroalgae; therefore, they possess various enzymes capable of breaking down the cell walls of carbohydrates, such as amylases that specifically hydrolyse starch and glycogen (Fleming et al., 1996; Rodríguez‐Viera et al., 2021).…”

Section: Introductionmentioning

confidence: 99%

“…The authors concluded that younger (1‐year‐old) abalone most likely require more protein to achieve the best performance in their diet. Recently, a study subjected two different abalone species ( Haliotis iris and H. rufescens ) to a 5°C temperature increase and measured digestive enzyme activity and diet digestibility (Frederick et al., 2022). The authors reported that carbohydrase activity was species‐specific with significantly reduced activity observed at high temperatures in H. iris , whereas the digestibility was not affected by temperature in either species (Frederick et al., 2022).…”

Section: Introductionmentioning

confidence: 99%

“…Recently, a study subjected two different abalone species ( Haliotis iris and H. rufescens ) to a 5°C temperature increase and measured digestive enzyme activity and diet digestibility (Frederick et al., 2022). The authors reported that carbohydrase activity was species‐specific with significantly reduced activity observed at high temperatures in H. iris , whereas the digestibility was not affected by temperature in either species (Frederick et al., 2022). These observations together suggest that the digestive physiology of abalone may be diet dependant, may change throughout the production period and is species‐specific.…”

Section: Introductionmentioning

confidence: 99%

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Digestive enzymes of postweaned greenlip abalone (Haliotis laevigata) are influenced by water temperatures and dietary protein levels

Bansemer,

Salini,

Qin

et al. 2023

Aquaculture Fish & Fisheries

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Digestive enzyme activities are known to fluctuate in abalone grown under different environmental conditions however the effects of different dietary regimes are less clear. Therefore, in a 12‐week study, the effects of water temperature and dietary protein levels on digestive enzyme activity in postweaned (6‐month‐old) greenlip abalone (Haliotis laevigata) were investigated. The abalone were fed diets with crude protein levels that ranged from 27% to 36% and cultured at 14°C, 17°C and 20°C. Diets were formulated to be isoenergetic (12.5 MJ kg−1 digestible energy) and isolipidic (3.6% crude lipid). Trypsin, α‐amylase and lipase activities were measured in the gastrointestinal region. Trypsin, α‐amylase and lipase activities significantly increased as water temperatures were raised. In addition, significantly higher α‐amylase activities were observed as protein levels increased, potentially indicating a compensatory effect to increase carbohydrate utilisation for energy metabolism when in short supply. However, abalone fed high dietary protein levels may also utilise protein for energy metabolism. Further research investigating the dietary carbohydrate source for greenlip abalone is recommended. This study provides useful information on the digestive enzyme activity in postweaned greenlip abalone to improve diet strategies for sustainable production.Abbreviated abstract: Post‐weaned greenlip abalone digestive enzyme activity was examined after feeding four dietary protein levels at three different temperatures for a 12‐week period. Enzyme activities were significantly increased with increasing water temperature. Additionally, significantly higher α‐amylase activities were observed as protein levels increased.

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Genome-wide association screening and MassARRAY for detection of high-temperature resistance-related SNPs and genes in a hybrid abalone (Haliotis discus hannai ♀ × H. fulgens ♂) based on super genotyping-by-sequencing

Zhao

Gan

et al. 2023

Aquaculture

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Abalone under moderate heat stress have elevated metabolic rates and changes to digestive enzyme activities

Cited by 9 publications

References 85 publications

Temperature-induced variations in dulse (Devaleraea mollis) nutrition provide indirect benefits on juvenile red abalone (Haliotis rufescens) Growth

Temperature-induced variations in dulse (Devaleraea mollis) nutrition provide indirect benefits on juvenile red abalone (Haliotis rufescens) Growth

Digestive enzymes of postweaned greenlip abalone (Haliotis laevigata) are influenced by water temperatures and dietary protein levels

Genome-wide association screening and MassARRAY for detection of high-temperature resistance-related SNPs and genes in a hybrid abalone (Haliotis discus hannai ♀ × H. fulgens ♂) based on super genotyping-by-sequencing

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