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Pansch, Christian (2017): Long-term exposure to acidification disrupts reproduction in a marine invertebrate. PANGAEA, https://doi.org/10.1594/PANGAEA.880158, Supplement to: Pansch, Christian; Hattich, Giannina S I; Heinrichs, T; Pansch, Andreas; Zagrodzka, Zuzanna; Havenhand, Jonathan N; Anil, Arga Chandrashekar (2018): Long-term exposure to acidification disrupts reproduction in a marine invertebrate. PLoS ONE, 13(2), e0192036, https://doi.org/10.1371/journal.pone.0192036

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Abstract:
Climate change research is advancing to more complex and more comprehensive studies that include long-term experiments, multiple life-history stages, multi-population, and multi-trait approaches. We used a population of the barnacle Balanus improvisus known to be sensitive to short-term acidification to determine its potential for long-term acclimation to acidification. We reared laboratory-bred individuals (as singles or pairs), and field-collected assemblages of barnacles, at pH 8.1 and 7.5 ( 400 and 1600 ?atm pCO2 respectively) for up to 16 months. Acidification caused strong mortality and reduced growth rates. Acidification suppressed respiration rates and induced a higher feeding activity of barnacles after 6 months, but this suppression of respiration rate was absent after 15 months. Laboratory- bred barnacles developed mature gonads only when they were held in pairs, but nonethe- less failed to produce fertilized embryos. Field-collected barnacles reared in the laboratory for 8 months at the same pH's developed mature gonads, but only those in pH 8.1 produced viable embryos and larvae. Because survivors of long-term acidification were not capable of reproducing, this demonstrates that B. improvisus can only partially acclimate to long-term acidification. This represents a clear and significant bottleneck in the ontogeny of this barna- cle population that may limit its potential to persist in a future ocean.
Coverage:
Date/Time Start: 2013-02-02T00:00:00 * Date/Time End: 2014-06-23T00:00:00
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Datasets listed in this publication series

  1. Pansch, C (2017): Long-term exposure to acidification disrupts reproduction in a marine invertebrate Long-term exposure to acidification disrupts reproduction in a marine invertebrate Fig 1a: Survival of barnacles over time. https://doi.org/10.1594/PANGAEA.880157
  2. Pansch, C (2017): Long-term exposure to acidification disrupts reproduction in a marine invertebrate Long-term exposure to acidification disrupts reproduction in a marine invertebrate Fig 1b: Size of barnacles over time. https://doi.org/10.1594/PANGAEA.880193
  3. Pansch, C (2017): Long-term exposure to acidification disrupts reproduction in a marine invertebrate Long-term exposure to acidification disrupts reproduction in a marine invertebrate Fig 2a and 2b: Dry weight and condition index of barnacles. https://doi.org/10.1594/PANGAEA.880195
  4. Pansch, C (2017): Long-term exposure to acidification disrupts reproduction in a marine invertebrate Long-term exposure to acidification disrupts reproduction in a marine invertebrate Fig 2c and 3a-d: Activity of barnacles. https://doi.org/10.1594/PANGAEA.880196
  5. Pansch, C (2017): Long-term exposure to acidification disrupts reproduction in a marine invertebrate Long-term exposure to acidification disrupts reproduction in a marine invertebrate Fig 2d: Respiration of barnacles at 6 and at 15 months of incubation. https://doi.org/10.1594/PANGAEA.880198
  6. Pansch, C (2017): Long-term exposure to acidification disrupts reproduction in a marine invertebrate Long-term exposure to acidification disrupts reproduction in a marine invertebrate Fig 4a and 4b: larval release. https://doi.org/10.1594/PANGAEA.880199
  7. Pansch, C (2017): Long-term exposure to acidification disrupts reproduction in a marine invertebrate Long-term exposure to acidification disrupts reproduction in a marine invertebrate Fig S2. https://doi.org/10.1594/PANGAEA.880201