Metabolic readjustment in juvenile South African abalone (Haliotis midae) acclimated to combinations of temperature and dissolved oxygen levels

Vosloo, Daléne; Vosloo, André; Morillion, Elisabeth J.; Samuels, Jessika; Sommer, Paula

doi:10.1016/j.jtherbio.2013.07.001

Cited by 19 publications

(14 citation statements)

References 47 publications

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“…For example, upper thermal limits in Haliotis midae were revealed by demonstrating that protein utilization increased during exposure to 19°C compared with lower temperatures (Vosloo et al . ). Information about the metabolic state allows estimations about energy cost and hence, calculations of temperature‐dependent growth, which has been demonstrated frequently over long experiment times by manually measuring growth (Leighton ; Britz et al .…”

Section: Physiological Response To Environmentmentioning

confidence: 97%

“…; Hickey & Wells ; Vosloo et al . ), but also through temperature sensitive feed conversion ratios (Britz & Hecht ; Lopez et al . ; Sales & Britz ; García‐Esquivel et al .…”

Section: Physiological Response To Environmentmentioning

confidence: 99%

“…Average habitat temperatures for H. midae are between 13.5 and 18°C (Vosloo et al . ) which may explain the lower HSP70 expression after a 1‐month exposure to 16 or 19°C. The protective effects of HSP70 were also apparent in a comparative study between H. discus hannai Ino populations (Cheng et al .…”

Section: Physiological Response To Environmentmentioning

confidence: 99%

“…Exposure to temperatures outside of T pref may affect abalone populations and communities by causing mortalities (Leighton 1974;Raimondi et al 2002;Searle et al 2006), stunted or slower growth (Onitsuka et al 2008;Byrne et al 2011), varying development times (Grubert & Ritar 2004;Rogers-Bennett et al 2010) and altered susceptibilities to diseases (Raimondi et al 2002;Rosenblum et al 2005;Vilchis et al 2005). These changes are mediated mainly by temperature influences on metabolic rate (Wells et al 1998;Hickey & Wells 2003;Vosloo et al 2013c), but also through temperature sensitive feed conversion ratios Lopez et al 1998;Sales & Britz 2001;Garc ıa-Esquivel et al 2007). The size and developmental state of the individual can also influence its thermal tolerance (Leighton 1972;Sawatpeera et al 2001;Steinarsson & Imsland 2003;Searle et al 2006;Schaefer et al 2013;Stone et al 2013).…”

Section: Temperaturementioning

confidence: 99%

See 3 more Smart Citations

Effects of environmental and farm stress on abalone physiology: perspectives for abalone aquaculture in the face of global climate change

Morash

Alter

2015

Reviews in Aquaculture

121

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Many abalone farms are reliant on coastal water inputs which are subject to fluctuations in environmental variables such as temperature, oxygen, CO 2 and salinity. Near future climate change scenarios predict that there will be more frequent extreme weather events which can exacerbate these fluctuations and potentially be deleterious to farmed abalone where these variables remain largely uncontrolled. In this review, we have taken an in depth examination of current literature on the effects of environmental stress on abalone physiology and metabolism and how this affects their health and growth. In conjunction, we have also reviewed the effects of farm-specific stressors such as ammonia, stocking density, handling, nutrition and disease and the synergistic effects of these and environmental stressors on abalone physiology. We have identified currents gaps in our knowledge of this under-studied species and have made predictions on the effects of climate change on future abalone production with suggestions for future research. In summary, it is expected that abalone will show reduced growth rates as more energy is invested in combating stresses rather than growth. Furthermore, disease outbreaks may become more frequent with greater fluctuations in temperature and salinity, both of which have large-scale effects on immunity. The current body of knowledge is mainly on whole animal effects of stresses, but we know very little of their mechanistic foundation. Research in this area as well as investments in infrastructure will be pivotal in identifying and implementing strategic interventions to maintain a sustainable abalone industry in Australia.

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Section: Physiological Response To Environmentmentioning

confidence: 97%

“…; Hickey & Wells ; Vosloo et al . ), but also through temperature sensitive feed conversion ratios (Britz & Hecht ; Lopez et al . ; Sales & Britz ; García‐Esquivel et al .…”

Section: Physiological Response To Environmentmentioning

confidence: 99%

Section: Physiological Response To Environmentmentioning

confidence: 99%

Section: Temperaturementioning

confidence: 99%

See 2 more Smart Citations

Effects of environmental and farm stress on abalone physiology: perspectives for abalone aquaculture in the face of global climate change

Morash

Alter

2015

Reviews in Aquaculture

121

View full text Add to dashboard Cite

show abstract

“…A lowered metabolic rate, however, was found at 19°C and 126% oxygen exposure, which is most likely due to an improvement in gaseous exchange (Vosloo et al . ). Furthermore, antioxidant enzyme activity (superoxide dismutase and glutathione peroxidise, specifically) was also found to be upregulated at elevated temperatures (Vosloo et al .…”

Section: Basic Metabolism and How We Apply It To Abalonementioning

confidence: 99%

Abalone growth and associated aspects: now from a metabolic perspective

Venter

Loots

Vosloo

et al. 2016

Reviews in Aquaculture

Self Cite

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Worldwide, there are approximately 100 Haliotis species, more commonly known as abalone or ‘Paua’ in New Zealand, ‘Venus's‐ears’ in Greece, ‘Awabi’ in Japan, ‘Perlemoen’ in South Africa and ‘Ormers’ in Europe. Regardless of what they are called in any part of the world, a high monetary value is coupled to this animal, because it is largely considered a seafood delicacy. Subsequently, a great deal of research primarily focused on improving the health and growth rates of abalone were carried out to maximise productivity of the commercial farming efforts in various countries. In this review, we comprehensively describe the most recent available scientific literature on abalone biology, and those aspects related to the growth of this organism; more specifically, those factors related to the uptake and breakdown of metabolic products which ensures long‐term growth. We subsequently discuss this in terms of basic animal design, farming outcomes, feeding, cellular growth mechanisms and the unique metabolic processes that exist in these species. Using this information and the knowledge of the metabolic processes in other organisms, we additionally make a number of new hypotheses regarding how these metabolic processes may function in terms of abalone growth. Based on the information presented in this review, we also identify major research opportunities and gaps in the existing knowledge of abalone metabolism, which when elucidated may not only serve the purpose of better understanding these organisms growth but also could potentially lead to increased productivity of the abalone commercial farming sector.

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Response of water quality to land use in hydrologic response unit and riparian buffer along the Dan River, China

Liu

Zhang²,

Li³

et al. 2021

Environ Sci Pollut Res

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Metabolic readjustment in juvenile South African abalone (Haliotis midae) acclimated to combinations of temperature and dissolved oxygen levels

Cited by 19 publications

References 47 publications

Effects of environmental and farm stress on abalone physiology: perspectives for abalone aquaculture in the face of global climate change

Effects of environmental and farm stress on abalone physiology: perspectives for abalone aquaculture in the face of global climate change

Abalone growth and associated aspects: now from a metabolic perspective

Response of water quality to land use in hydrologic response unit and riparian buffer along the Dan River, China

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