Standard Metabolic Rate (SMR) is inversely related to erythrocyte and genome size in allopolyploid fish of the Cobitis taenia hybrid complex

Maciak, Sebastian; Janko, Karel; Kotusz, Jan; Choleva, Lukáš; Boroń, Alicja; Juchno, Dorota; Kujawa, Roman; Kozłowski, Jan; Konarzewski, Marek

doi:10.1111/j.1365-2435.2011.01870.x

Cited by 83 publications

(97 citation statements)

References 53 publications

(155 reference statements)

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“…Small cells (and organisms containing them) tend to have higher mass-specific metabolic rates than large cells (and organisms containing them) [26,[69][70][71][72][73][74][75][76][77]. Therefore, like the MTE, cell-size theory predicts that changing temperature should affect the elevation of metabolic scaling relationships, but not their slopes (but see Section 3.2.2), which again is contradicted by the results described in this study.…”

Section: Implications Of Results For Theorycontrasting

confidence: 55%

Effects of Contingency versus Constraints on the Body-Mass Scaling of Metabolic Rate

Glazier

2018

Challenges

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I illustrate the effects of both contingency and constraints on the body-mass scaling of metabolic rate by analyzing the significantly different influences of ambient temperature (T a ) on metabolic scaling in ectothermic versus endothermic animals. Interspecific comparisons show that increasing T a results in decreasing metabolic scaling slopes in ectotherms, but increasing slopes in endotherms, a pattern uniquely predicted by the metabolic-level boundaries hypothesis, as amended to include effects of the scaling of thermal conductance in endotherms outside their thermoneutral zone. No other published theoretical model explicitly predicts this striking variation in metabolic scaling, which I explain in terms of contingent effects of T a and thermoregulatory strategy in the context of physical and geometric constraints related to the scaling of surface area, volume, and heat flow across surfaces. My analysis shows that theoretical models focused on an ideal 3/4-power law, as explained by a single universally applicable mechanism, are clearly inadequate for explaining the diversity and environmental sensitivity of metabolic scaling. An important challenge is to develop a theory of metabolic scaling that recognizes the contingent effects of multiple mechanisms that are modulated by several extrinsic and intrinsic factors within specified constraints.

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Section: Implications Of Results For Theorycontrasting

confidence: 55%

Effects of Contingency versus Constraints on the Body-Mass Scaling of Metabolic Rate

Glazier

2018

Challenges

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“…Since that time, many investigators have discussed the cell-size model, including providing additional theoretical formulations, conceptual justifications, and empirical tests [19,20,56,97,105,106,130,[143][144][145][146][147][148]. However, so far the model has received mixed empirical support [19,20,97,105,106,[139][140][141][142][143]145,[149][150][151][152][153][154][155].…”

Section: Surface-area Modelsmentioning

confidence: 99%

Rediscovering and Reviving Old Observations and Explanations of Metabolic Scaling in Living Systems

Glazier

2018

Systems

112

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Why the rate of metabolism varies (scales) in regular, but diverse ways with body size is a perennial, incompletely resolved question in biology. In this article, I discuss several examples of the recent rediscovery and (or) revival of specific metabolic scaling relationships and explanations for them previously published during the nearly 200-year history of allometric studies. I carry out this discussion in the context of the four major modal mechanisms highlighted by the contextual multimodal theory (CMT) that I published in this journal four years ago. These mechanisms include metabolically important processes and their effects that relate to surface area, resource transport, system (body) composition, and resource demand. In so doing, I show that no one mechanism can completely explain the broad diversity of metabolic scaling relationships that exists. Multi-mechanistic models are required, several of which I discuss. Successfully developing a truly general theory of biological scaling requires the consideration of multiple hypotheses, causal mechanisms and scaling relationships, and their integration in a context-dependent way. A full awareness of the rich history of allometric studies, an openness to multiple perspectives, and incisive experimental and comparative tests can help this important quest.

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“…Fish are known as the vertebrates manifesting the greatest variation in values for haematological parameters (GREGORY 2001, HOM¥TOWSKA et al 2002, HARDIE and HEBERT 2003, MACIAK et al 2011. In the selected freshwater species studied here, the mean numbers of erythrocytes per mm 3 of blood were found to vary across a twofold (Table 1).…”

Section: Discussionmentioning

confidence: 94%

“…There was also considerable variability in erythrocyte size, reflecting differences in both linear parameters and volume (Tables 1, 2). Confirmation is thus offered for a thesis expounded widely in the literature as regards interspecific differences in both sizes and numbers of red blood cells in fish (LAY and BALDWIN 1999, GREGORY 2001, HOM¥TOWSKA et al 2002, HARDIE and HEBERT 2003, MACIAK et al 2011.…”

Section: Discussionmentioning

confidence: 96%

“…Linear parameters describing the sizes of erythrocytes offer an important depiction of maximal saturability of haemoglobin (HB) with oxygen, and hence of the efficiency with which the gas is transported to the tissues (NIKINMAA and SALAMA 1998, COOPER et al 2001, MACIAK et al 2011. The results of earlier haematological studies on mammals and birds have shown that the capacity of haemoglobin to become maximally oxygen-saturated is dependent on the ratio between the HB concentration and the total surface area of erythrocytes (TSAE), the latter being derived from both the sizes (S) and numbers of cells of this type (RBC) (KOSTELECKA-MYRCHA 1997, KOSTELECKA-MYRCHA and CHO£OSTIAKOW-GROMEK 2001.…”

Section: Introductionmentioning

confidence: 99%

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Regularities of Variation of the Red Blood Indices Characterizing the Respiratory Function of Blood in Selected Fish

Maciak¹,

Kostelecka‐Myrcha²

2011

Zoologica Poloniae

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There is a large diversity of red blood indices determining oxygen transport ability in vertebrates. In fish this diversity is particularly large, probably due to the great variability in water environments, which impedes the possibility of finding and understanding general patterns. It has been assumed that in mammals, the measure determining the ability of a blood unit to transport oxygen is the ratio of hemoglobin concentration (HB) and total erythrocyte surface area (TSAE). It was also shown that both in mammals and birds the amount of hemoglobin per total surface area unit (Hb/ TSAE) conditions maximum use of respiratory pigment in oxygen transport, in different physiological and environmental conditions. In order to check whether this regularity occurs in fish, red blood indices were analyzed in seven species of freshwater fish, differing noticeably in their biology and body mass in two seasons of the year. Notwithstanding this marked seasonal variability to the component variables together determining the total surface area of erythrocytes, the value for TSAE was found to differ in proportion to the higher or lower concentrations of HB. In consequence, the HB/TSAE ratio indicative of the maximal use of haemoglobin in the transport of oxygen was constant in all of the fish studied between analyzed seasons. This constancy resembling that to be noted in birds is most probably related to the counter-current gaseous exchange ongoing in the gills of fish.

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Standard Metabolic Rate (SMR) is inversely related to erythrocyte and genome size in allopolyploid fish of the Cobitis taenia hybrid complex

Cited by 83 publications

References 53 publications

Effects of Contingency versus Constraints on the Body-Mass Scaling of Metabolic Rate

Effects of Contingency versus Constraints on the Body-Mass Scaling of Metabolic Rate

Rediscovering and Reviving Old Observations and Explanations of Metabolic Scaling in Living Systems

Regularities of Variation of the Red Blood Indices Characterizing the Respiratory Function of Blood in Selected Fish

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