Effect of body mass and activity on the metabolic rate and ammonia-N excretion of the spiny lobster Sagmariasus verreauxi during ontogeny

Jensen, Mark A.; Fitzgibbon, Quinn P.; Carter, Chris; Adams, Louise R.

doi:10.1016/j.cbpa.2013.06.003

Cited by 30 publications

(42 citation statements)

References 78 publications

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“…This hypothesis predicts that ontogenetic changes in growth rate should cause temporally associated shifts in the metabolic scaling exponent (b) (Glazier, 2005). First, in many animals and plants, b tends to be higher during early developmental stages when growth is rapid than during later developmental stages when growth has slowed down (Riisgård, 1998;Glazier, 2005;Hunt von Herbing, 2006;Czarnołeski et al, 2008;Peng et al, 2010;Rombough, 2011;Gaitán-Espitia et al, 2013;Jensen et al, 2013). First, in many animals and plants, b tends to be higher during early developmental stages when growth is rapid than during later developmental stages when growth has slowed down (Riisgård, 1998;Glazier, 2005;Hunt von Herbing, 2006;Czarnołeski et al, 2008;Peng et al, 2010;Rombough, 2011;Gaitán-Espitia et al, 2013;Jensen et al, 2013).…”

Section: (2) Cause Versus Effectmentioning

confidence: 99%

“…Three major lines of evidence support this prediction. First, in many animals and plants, b tends to be higher during early developmental stages when growth is rapid than during later developmental stages when growth has slowed down (Riisgård, 1998;Glazier, 2005;Hunt von Herbing, 2006;Czarnołeski et al, 2008;Peng et al, 2010;Rombough, 2011;Gaitán-Espitia et al, 2013;Jensen et al, 2013). Second, in many pelagic animals with high growth or production rates throughout their relatively short lives (e.g.…”

Section: (2) Cause Versus Effectmentioning

confidence: 99%

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Is metabolic rate a universal ‘pacemaker’ for biological processes?

2014

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A common, long-held belief is that metabolic rate drives the rates of various biological, ecological and evolutionary processes. Although this metabolic pacemaker view (as assumed by the recent, influential 'metabolic theory of ecology') may be true in at least some situations (e.g. those involving moderate temperature effects or physiological processes closely linked to metabolism, such as heartbeat and breathing rate), it suffers from several major limitations, including: (i) it is supported chiefly by indirect, correlational evidence (e.g. similarities between the body-size and temperature scaling of metabolic rate and that of other biological processes, which are not always observed) - direct, mechanistic or experimental support is scarce and much needed; (ii) it is contradicted by abundant evidence showing that various intrinsic and extrinsic factors (e.g. hormonal action and temperature changes) can dissociate the rates of metabolism, growth, development and other biological processes; (iii) there are many examples where metabolic rate appears to respond to, rather than drive the rates of various other biological processes (e.g. ontogenetic growth, food intake and locomotor activity); (iv) there are additional examples where metabolic rate appears to be unrelated to the rate of a biological process (e.g. ageing, circadian rhythms, and molecular evolution); and (v) the theoretical foundation for the metabolic pacemaker view focuses only on the energetic control of biological processes, while ignoring the importance of informational control, as mediated by various genetic, cellular, and neuroendocrine regulatory systems. I argue that a comprehensive understanding of the pace of life must include how biological activities depend on both energy and information and their environmentally sensitive interaction. This conclusion is supported by extensive evidence showing that hormones and other regulatory factors and signalling systems coordinate the processes of growth, metabolism and food intake in adaptive ways that are responsive to an organism's internal and external conditions. Metabolic rate does not merely dictate growth rate, but is coadjusted with it. Energy and information use are intimately intertwined in living systems: biological signalling pathways both control and respond to the energetic state of an organism. This review also reveals that we have much to learn about the temporal structure of the pace of life. Are its component processes highly integrated and synchronized, or are they loosely connected and often discordant? And what causes the level of coordination that we see? These questions are of great theoretical and practical importance.

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Section: (2) Cause Versus Effectmentioning

confidence: 99%

Section: (2) Cause Versus Effectmentioning

confidence: 99%

Is metabolic rate a universal ‘pacemaker’ for biological processes?

2014

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“…However, a slight protein-sparing effect of lipids was found in S. verreauxi larvae (Jensen et al 2013) and in P. argus juveniles (Perera et al 2005) fed particular feeds. While O/N ratio supports the contention for a protein-sparing effect of carbohydrate in other crustaceans such as the American lobster, H. americanus (Brown 2006), there is limited evidence for this effect in spiny lobsters (Perera et al 2005;Limbourn et al 2008;Jensen et al 2013). Nevertheless, carbohydrate metabolism is now considered more important than previously assumed in other crustaceans, such as shrimp (S anchez-Paz et al 2006), so the capacity for spiny lobster juveniles to use carbohydrates as alternative energy source still needs closer examination (Simon 2009c,d;Simon & Jeffs 2011).…”

Section: Post-absorptive Processesmentioning

confidence: 95%

“…The oxygen consumption/ammonia excretion atomic ratio (O/N) enables a better interpretation of these variables in terms of energy metabolism. Spiny lobsters have typically low O/N ratios being indicative of a markedly protein-based energy metabolism both in larvae (Jensen et al 2013) and juvenile (Perera et al 2005). However, a slight protein-sparing effect of lipids was found in S. verreauxi larvae (Jensen et al 2013) and in P. argus juveniles (Perera et al 2005) fed particular feeds.…”

Section: Post-absorptive Processesmentioning

confidence: 99%

“…Spiny lobsters have typically low O/N ratios being indicative of a markedly protein-based energy metabolism both in larvae (Jensen et al 2013) and juvenile (Perera et al 2005). However, a slight protein-sparing effect of lipids was found in S. verreauxi larvae (Jensen et al 2013) and in P. argus juveniles (Perera et al 2005) fed particular feeds. While O/N ratio supports the contention for a protein-sparing effect of carbohydrate in other crustaceans such as the American lobster, H. americanus (Brown 2006), there is limited evidence for this effect in spiny lobsters (Perera et al 2005;Limbourn et al 2008;Jensen et al 2013).…”

Section: Post-absorptive Processesmentioning

confidence: 99%

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Digestive physiology of spiny lobsters: implications for formulated diet development

Perera

Simon

2014

Reviews in Aquaculture

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The development of cost-effective and nutritionally adequate formulated feeds is a key step for developing sustainable technologies for new aquaculture species. There has been many research effort for over 30 years on feed development for spiny lobsters, but amazingly, poor performance of formulated feeds remains one of the major obstacles to progressing commercial aquaculture of these crustaceans. This is partially due to a lack of information on how spiny lobsters digest and assimilate formulated feeds. The aim of this review is to integrate recent information on the digestive physiology of spiny lobsters to identify areas where further studies are needed for advancing to more physiologically tailored formulated feeds. Increasing the efficiency of mechanical and chemical digestion is imperative for better digestion of formulated feeds. This is likely to be achieved by improving feed format, reducing the particle size of ingredients, using digestible binders, preprocessing or selecting more soluble macronutrients and supplementing feeds with additives such as pH buffers, emulsifying agents and/or exogenous enzymes. Future research needs to adopt a holistic approach for investigating the digestive processes in spiny lobsters by focusing on digestion as well as downstream processes. The protein-sparing effect of lipids and carbohydrates on spiny lobster metabolism is of a particular significance as the spiny lobster metabolism is strongly directed towards the use of protein. This review provides important insights, practical solutions and key research directions to improve both our understanding of spiny lobster digestive physiology and the performance of formulated feeds for spiny lobsters.

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Spiny lobster predation of barrens‐forming sea urchins is not limited by body size, but may be overstated

Day,

Knott,

Swadling

et al. 2024

Ecosphere

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Worldwide, lobsters are considered key predators that control urchin populations. It has been widely reported that lobster size plays a significant role in the size of urchins they feed on, as does the size of the urchin. Generally, it is thought that small palinurid “spiny” lobsters measuring less than 120 mm carapace length (CL) are morphologically incapable of eating urchins, while large lobsters are voracious predators. Urchin size is expected to affect predation with larger urchins of greater than 90 mm test diameter (TD) presenting the most difficult prey. These generalities, however, have not been quantitatively tested for the eastern spiny lobster Sagmariasus verreauxi and recently the accepted size paradigm for lobsters eating urchins has come into question. The aim of this study was to assess whether lobster predation on urchins would differ with urchin size or species, or the size of lobster. Our results indicate that S. verreauxi does not fit the common lobster patterns regarding urchin predation. There were generally low rates of predation and a significant negative relationship between feeding and both lobster size and urchin size. We found that small lobsters were capable urchin predators with a higher likelihood of eating urchins than larger lobsters, which were more reluctant predators. While we did find the expected effect of smaller urchins being significantly more vulnerable prey, there was none of the expected size limitations for small lobsters eating large urchins and predation did not differ between urchin species, indicating that this was a general pattern. Overall, we observed low rates of predation, suggesting that either S. verreauxi may not be a key urchin predator like other lobster species elsewhere, or that small lobsters are underestimated as urchin predators in temperate marine ecosystems.

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Effect of body mass and activity on the metabolic rate and ammonia-N excretion of the spiny lobster Sagmariasus verreauxi during ontogeny

Cited by 30 publications

References 78 publications

Is metabolic rate a universal ‘pacemaker’ for biological processes?

Is metabolic rate a universal ‘pacemaker’ for biological processes?

Digestive physiology of spiny lobsters: implications for formulated diet development

Spiny lobster predation of barrens‐forming sea urchins is not limited by body size, but may be overstated

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