Effects of ocean acidification on larval development and early post-hatching traits in Concholepas concholepas (loco)

2014 ◽  
Vol 514 ◽  
pp. 87-103 ◽  
Author(s):  
PH Manríquez ◽  
ME Jara ◽  
ML Mardones ◽  
R Torres ◽  
NA Lagos ◽  
...  
Keyword(s):  
Ocean Acidification ◽  
Larval Development ◽  
Concholepas Concholepas

scholarly journals Impacts of ocean acidification on development of the meroplanktonic larval stage of the sea urchin Centrostephanus rodgersii

2011 ◽  
Vol 69 (3) ◽  
pp. 460-464 ◽  
Author(s):  
Steve S. Doo ◽  
Symon A. Dworjanyn ◽  
Shawna A. Foo ◽  
Natalie A. Soars ◽  
Maria Byrne
Keyword(s):  
Ocean Acidification ◽  
Larval Development ◽  
Sea Urchin ◽  
Larval Stage ◽  
Larval Growth ◽  
Marine Science ◽  
Eastern Australia ◽  
The Impact ◽  
Near Future

Abstract Doo, S. S., Dworjanyn, S. A., Foo, S. A., Soars, N. A., and Byrne, M. 2012. Impacts of ocean acidification on development of the meroplanktonic larval stage of the sea urchin Centrostephanus rodgersii. – ICES Journal of Marine Science, 69: 460–464. The effects of near-future ocean acidification/hypercapnia on larval development were investigated in the sea urchin Centrostephanus rodgersii, a habitat-modifying species from eastern Australia. Decreased pH (−0.3 to −0.5 pH units) or increased pCO2 significantly reduced the percentage of normal larvae. Larval growth was negatively impacted with smaller larvae in the pH 7.6/1800 ppm treatments. The impact of acidification on development was similar on days 3 and 5, indicating deleterious effects early in development. On day 3, increased abnormalities in the pH 7.6/1600 ppm treatment were seen in aberrant prism stage larvae and arrested/dead embryos. By day 5, echinoplutei in this treatment had smaller arm rods. Observations of smaller larvae in C. rodgersii have significant implications for this species because larval success may be a potential bottleneck for persistence in a changing ocean.

Differential response to ocean acidification in physiological traits of Concholepas concholepas populations

2014 ◽  
Vol 90 ◽  
pp. 127-134 ◽  
Author(s):  
Marco A. Lardies ◽  
María Belén Arias ◽  
María Josefina Poupin ◽  
Patricio H. Manríquez ◽  
Rodrigo Torres ◽  
...  
Keyword(s):  
Ocean Acidification ◽  
Differential Response ◽  
Physiological Traits ◽  
Concholepas Concholepas

scholarly journals Impact of Ocean Warming and Ocean Acidification on Larval Development and Calcification in the Sea Urchin Tripneustes gratilla

PLoS ONE ◽  
2010 ◽  
Vol 5 (6) ◽  
pp. e11372 ◽  
Author(s):  
Hannah Sheppard Brennand ◽  
Natalie Soars ◽  
Symon A. Dworjanyn ◽  
Andrew R. Davis ◽  
Maria Byrne
Keyword(s):  
Ocean Acidification ◽  
Larval Development ◽  
Sea Urchin ◽  
Ocean Warming ◽  
Tripneustes Gratilla

scholarly journals Ocean Acidification Disrupts Prey Responses to Predator Cues but Not Net Prey Shell Growth in Concholepas concholepas (loco)

PLoS ONE ◽  
2013 ◽  
Vol 8 (7) ◽  
pp. e68643 ◽  
Author(s):  
Patricio H. Manríquez ◽  
María Elisa Jara ◽  
María Loreto Mardones ◽  
Jorge M. Navarro ◽  
Rodrigo Torres ◽  
...  
Keyword(s):  
Ocean Acidification ◽  
Shell Growth ◽  
Predator Cues ◽  
Concholepas Concholepas

scholarly journals CO2-driven ocean acidification reduces larval feeding efficiency and changes food selectivity in the mollusk Concholepas concholepas

2013 ◽  
Vol 35 (5) ◽  
pp. 1059-1068 ◽  
Author(s):  
Cristian A. Vargas ◽  
Makarena de la Hoz ◽  
Victor Aguilera ◽  
Valeska San Martín ◽  
Patricio H. Manríquez ◽  
...  
Keyword(s):  
Ocean Acidification ◽  
Food Selectivity ◽  
Larval Feeding ◽  
Feeding Efficiency ◽  
Concholepas Concholepas

scholarly journals Ocean pH fluctuations affect mussel larvae at key developmental transitions

2018 ◽  
Vol 285 (1893) ◽  
pp. 20182381 ◽  
Author(s):  
L. Kapsenberg ◽  
A. Miglioli ◽  
M. C. Bitter ◽  
E. Tambutté ◽  
R. Dumollard ◽  
...  
Keyword(s):  
Ocean Acidification ◽  
Larval Development ◽  
Shell Growth ◽  
Larval Shell ◽  
Abnormal Development ◽  
Life History Stage ◽  
Carbonate Chemistry ◽  
Developmental Processes ◽  
Seawater Chemistry ◽  
The Impact

Coastal marine ecosystems experience dynamic fluctuations in seawater carbonate chemistry. The importance of this variation in the context of ocean acidification requires knowing what aspect of variability biological processes respond to. We conducted four experiments (ranging from 3 to 22 days) with different variability regimes (pH T 7.4–8.1) assessing the impact of diel fluctuations in carbonate chemistry on the early development of the mussel Mytilus galloprovincialis . Larval shell growth was consistently correlated to mean exposures, regardless of variability regimes, indicating that calcification responds instantaneously to seawater chemistry. Larval development was impacted by timing of exposure, revealing sensitivity of two developmental processes: development of the shell field, and transition from the first to the second larval shell. Fluorescent staining revealed developmental delay of the shell field at low pH, and abnormal development thereof was correlated with hinge defects in D-veligers. This study shows, for the first time, that ocean acidification affects larval soft-tissue development, independent from calcification. Multiple developmental processes additively underpin the teratogenic effect of ocean acidification on bivalve larvae. These results explain why trochophores are the most sensitive life-history stage in marine bivalves and suggest that short-term variability in carbonate chemistry can impact early larval development.

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