@article{fdi:010074827,
  title = {{D}amage-related protein turnover explains inter-specific patterns of maintenance rate and suggests modifications of the {DEB} theory},
  author = {{M}aury, {O}livier and {P}oggiale, {J}. {C}. and {A}umont, {O}livier},
  editor = {},
  language = {{ENG}},
  abstract = {{M}aintenance is the energy that living organisms are bound to use to maintain their structure in a viable state. {I}t includes all the metabolic and physiological costs that are not directly associated to the production of biomass (growth and reproduction) or to development (maturation). {I}n the framework of the {DEB} theory, the somatic maintenance rate can either be proportional to organism structural volume {V} or, more marginally, to structural surface {V}-2/3. {B}eing mostly associated to similar metabolic processes, volume-specific maintenance costs are not expected to vary substantially at both intra- and inter-specific levels. {I}n the {DEB} theory, the volume-specific maintenance rate [{P}-{M}] is therefore supposed to keep constant from birth to death and to remain approximately constant between species. {H}owever, a recent meta-analysis of {DEB} parameters estimated using the {A}dd-my-{P}et collection ({K}ooijman, 2014) reveals troubling patterns apparently violating this inter-specific scaling rule and challenging the {DEB} theory. {I}t is indeed shown in this study that empirically-derived volume-specific maintenance rates scale approximately with {L}-m(-0,4) and display a very high variability around this trend. {O}verall, estimated maintenance rates in {A}dd-my-{P}et span over three to four orders of magnitude, thus invalidating the assumption of constant maintenance rate between species, which underpins the covariation rules for parameter values of the {DEB} theory. {I}n an attempt to address this major problem for the {DEB} theory, we propose a simple physiological mechanism that would simultaneously explain the apparent decrease of volume-specific maintenance rate with ultimate size and its apparent variability for a given range of maximum size. {O}ur proposition consists in making protein (and more generally structure) turnover explicit in maintenance and linking protein damage rate to aerobic metabolism and the production of {ROS}, which are decreasing with both structural volume and maximum structural volume. {W}e show that this implies that the actual volume specific maintenance rate varies both at the intra- and inter-specific levels in a range very similar to what is observed in the {A}dd-my-{P}et data estimations. {I}f true, this implies that the apparent decrease of volume-specific maintenance rate with ultimate size is an artefact and it requires modifications of the standard {DEB} theory in order to capture empirical inter-specific scaling patterns of {DEB}-parameters while keeping the consistency of the theory at both intra- and inter-specific levels.},
  keywords = {},
  booktitle = {},
  journal = {{J}ournal of {S}ea {R}esearch},
  volume = {143},
  numero = {{S}pecial {I}ssue},
  pages = {35--47},
  ISSN = {1385-1101},
  year = {2019},
  DOI = {10.1016/j.seares.2018.09.021},
  URL = {https://www.documentation.ird.fr/hor/fdi:010074827},
}