Seawater carbonate chemistry and hatching success of anemonefish

Oceans have continuously absorbed anthropogenic carbon dioxide from the atmosphere. The early life stages are likely vulnerable to low pH conditions. The present study aimed to assess the anemonefish (Amphiprionsebae), egg hatch rate and gonadal tissue condition in different pH levels in 6 weeks. Se...

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Bibliographic Details
Main Authors: Kannan, Gunasekaran, Ayyappan, Saravanakumar, Mariasingarayan, Yosuva
Format: Dataset
Language:English
Published: PANGAEA 2020
Subjects:
Alkalinity
total
standard deviation
Amphiprion sebae
Animalia
Aragonite saturation state
Bicarbonate ion
Calcite saturation state
Calculated using CO2SYS
Calculated using seacarb after Nisumaa et al. (2010)
Calculated using seacarb after Orr et al. (2018)
Carbon
inorganic
dissolved
Carbonate ion
Carbonate system computation flag
Carbon dioxide
Chordata
Coast and continental shelf
Containers and aquaria (20-1000 L or < 1 m**2)
Fugacity of carbon dioxide (water) at sea surface temperature (wet air)
Fugacity of carbon dioxide in seawater
Hatching rate
Identification
Indian Ocean
Laboratory experiment
Nekton
OA-ICC
Ocean Acidification International Coordination Centre
Partial pressure of carbon dioxide
Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)
Pelagos
Ocean acidification
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.922623
https://doi.org/10.1594/PANGAEA.922623
Description
Summary:Oceans have continuously absorbed anthropogenic carbon dioxide from the atmosphere. The early life stages are likely vulnerable to low pH conditions. The present study aimed to assess the anemonefish (Amphiprionsebae), egg hatch rate and gonadal tissue condition in different pH levels in 6 weeks. Seawater pH was manually manipulated by bubbling known concentrations of CO2 to achieve three pH treatments 8.1, 7.7 and 7.3. Egg hatch rate decreased with declining pH (ambient pH – 93 %, pH 7.7 – 92 %, pH 7.3 – 88 %) and a slight time delay was observed between the ambient and lower pH treatments. The condition of testicular and ovarian tissue was not affected by low pH levels. Overall, present experiment found that the slight negative effects on egg hatching success in low pH condition. The experimental results suggested that early life stages expected to vulnerable to near future ocean acidification.

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