@article{fdi:010085224,
  title = {{P}hototrophic sponge productivity may not be enhanced in a high {CO}2 world},
  author = {{B}ell, {J}. {J}. and {S}haffer, {M}. and {L}uter, {H}. {M}. and {M}ana, {R}. and {R}odolfo-{M}etalpa, {R}iccardo},
  editor = {},
  language = {{ENG}},
  abstract = {{S}ponges are major components of benthic communities across the world and have been identified as potential "winners" on coral reefs in the face of global climate change as result of their tolerance to ocean warming and acidification ({OA}). {P}revious studies have also hypothesised that photosymbiont-containing sponges might have higher productivity under future {OA} conditions as a result of photosymbionts having increased access to {CO}2 and subsequently greater carbon production. {H}ere we test this hypothesis for a widespread and abundant photosymbiont-containing sponge species {L}amellodysidea herbacea at a {CO}2 seep in {P}apua {N}ew {G}uinea simulating {OA} conditions. {W}e found seep sponges had relatively higher cyanobacterial abundance, chlorophyll concentrations and symbiont photosynthetic efficiency than non-seep sponges, and a three-fold higher sponge abundance at the seep site. {H}owever, while gross oxygen production was the same for seep and non-seep sponges, seep sponge dark respiration rates were higher and instantaneous photosynthesis: respiration ({P}:{R}) ratios were lower. {W}e show that while photosymbiont containing sponges may not have increased productivity under {OA}, they are able to show flexibility in their relationships with microbes and offset increased metabolic costs associated with climate change associated stress.},
  keywords = {{CO}2 seep ; ocean acidification ; {P}apua {N}ew {G}uinea ; {P}orifera ; respiration ; {PAPOUASIE} {NOUVELLE} {GUINEE}},
  booktitle = {},
  journal = {{G}lobal {C}hange {B}iology},
  volume = {[{E}arly access]},
  numero = {},
  pages = {[12 p.]},
  ISSN = {1354-1013},
  year = {2022},
  DOI = {10.1111/gcb.16235},
  URL = {https://www.documentation.ird.fr/hor/fdi:010085224},
}