Contrasting effects of ocean acidification on reproduction in reef fishes


Autoria(s): Welch, Megan J; Munday, Philip L
Cobertura

LATITUDE: -18.620000 * LONGITUDE: 146.490000 * DATE/TIME START: 2012-09-01T00:00:00 * DATE/TIME END: 2012-09-30T00:00:00

Data(s)

16/05/2016

Resumo

Differences in the sensitivity of marine species to ocean acidification will influence the structure of marine communities in the future. Reproduction is critical for individual and population success, yet is energetically expensive and could be adversely affected by rising CO2 levels in the ocean. We investigated the effects of projected future CO2 levels on reproductive output of two species of coral reef damselfish, Amphiprion percula and Acanthochromis polyacanthus. Adult breeding pairs were maintained at current-day control (446 µatm), moderate (652 µatm) or high CO2 (912 µatm) for a 9-month period that included the summer breeding season. The elevated CO2 treatments were consistent with CO2 levels projected by 2100 under moderate (RCP6) and high (RCP8) emission scenarios. Reproductive output increased in A. percula, with 45-75 % more egg clutches produced and a 47-56 % increase in the number of eggs per clutch in the two elevated CO2 treatments. In contrast, reproductive output decreased at high CO2 in Ac. polyacanthus, with approximately one-third as many clutches produced compared with controls. Egg survival was not affected by CO2 for A. percula, but was greater in elevated CO2 for Ac. polyacanthus. Hatching success was also greater for Ac. polyacanthus at elevated CO2, but there was no effect of CO2 treatments on offspring size. Despite the variation in reproductive output, body condition of adults did not differ between control and CO2 treatments in either species. Our results demonstrate different effects of high CO2 on fish reproduction, even among species within the same family. A greater understanding of the variation in effects of ocean acidification on reproductive performance is required to predict the consequences for future populations of marine organisms.

Formato

text/tab-separated-values, 1221 data points

Identificador

https://doi.pangaea.de/10.1594/PANGAEA.860455

doi:10.1594/PANGAEA.860455

Idioma(s)

en

Publicador

PANGAEA

Relação

Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloise (2015): seacarb: seawater carbonate chemistry with R. R package version 3.0.8. https://cran.r-project.org/package=seacarb

Direitos

CC-BY: Creative Commons Attribution 3.0 Unported

Access constraints: unrestricted

Fonte

Supplement to: Welch, Megan J; Munday, Philip L (2015): Contrasting effects of ocean acidification on reproduction in reef fishes. Coral Reefs, 35(2), 485-493, doi:10.1007/s00338-015-1385-9

Palavras-Chave #Alkalinity, total; Alkalinity, total, standard deviation; Aragonite saturation state; Bicarbonate ion; Calcite saturation state; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. (2010); Carbon, inorganic, dissolved; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Clutches per pair; Clutches per pair, standard error; Egg hatching success; Egg hatching success, standard error; Eggs area; Eggs area, standard error; Eggs per clutch; Eggs per clutch, standard error; Event label; EXP; Experiment; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Length; Length, standard error; Mass; Mass, standard error; OA-ICC; Ocean Acidification International Coordination Centre; Orpheus_Island; Partial pressure of carbon dioxide, standard deviation; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); pH; pH, standard deviation; Potentiometric; Potentiometric titration; Registration number of species; Replicates; Salinity; Salinity, standard deviation; Species; Survival; Survival rate, standard error; Temperature, water; Temperature, water, standard deviation; Treatment; Type; Uniform resource locator/link to reference
Tipo

Dataset