scholarly journals Effects of Ocean Acidification and Warming on Sperm Activity and Early Life Stages of the Mediterranean Mussel (Mytilus galloprovincialis)

Water ◽  
2013 ◽  
Vol 5 (4) ◽  
pp. 1890-1915 ◽  
Author(s):  
Mikko Vihtakari ◽  
Iris Hendriks ◽  
Johnna Holding ◽  
Paul Renaud ◽  
Carlos Duarte ◽  
...  
Keyword(s):  
Ocean Acidification ◽  
Early Life ◽  
Mytilus Galloprovincialis ◽  
Life Stages ◽  
Early Life Stages ◽  
Mediterranean Mussel ◽  
The Mediterranean

scholarly journals Effect of ocean acidification on early life stages of Atlantic herring (<i>Clupea harengus</i> L.)

2011 ◽  
Vol 8 (12) ◽  
pp. 3697-3707 ◽  
Author(s):  
A. Franke ◽  
C. Clemmesen
Keyword(s):  
Ocean Acidification ◽  
Linear Relationship ◽  
Early Life ◽  
Clupea Harengus ◽  
Control Treatment ◽  
Future Research ◽  
Atlantic Herring ◽  
Life Stages ◽  
Early Life Stages ◽  
Newly Hatched Larvae

Abstract. Due to atmospheric accumulation of anthropogenic CO2 the partial pressure of carbon dioxide (pCO2) in surface seawater increases and the pH decreases. This process known as ocean acidification might have severe effects on marine organisms and ecosystems. The present study addresses the effect of ocean acidification on early developmental stages, the most sensitive stages in life history, of the Atlantic herring (Clupea harengus L.). Eggs of the Atlantic herring were fertilized and incubated in artificially acidified seawater (pCO2 1260, 1859, 2626, 2903, 4635 μatm) and a control treatment (pCO2 480 μatm) until the main hatch of herring larvae occurred. The development of the embryos was monitored daily and newly hatched larvae were sampled to analyze their morphometrics, and their condition by measuring the RNA/DNA ratios. Elevated pCO2 neither affected the embryogenesis nor the hatch rate. Furthermore the results showed no linear relationship between pCO2 and total length, dry weight, yolk sac area and otolith area of the newly hatched larvae. For pCO2 and RNA/DNA ratio, however, a significant negative linear relationship was found. The RNA concentration at hatching was reduced at higher pCO2 levels, which could lead to a decreased protein biosynthesis. The results indicate that an increased pCO2 can affect the metabolism of herring embryos negatively. Accordingly, further somatic growth of the larvae could be reduced. This can have consequences for the larval fish, since smaller and slow growing individuals have a lower survival potential due to lower feeding success and increased predation mortality. The regulatory mechanisms necessary to compensate for effects of hypercapnia could therefore lead to lower larval survival. Since the recruitment of fish seems to be determined during the early life stages, future research on the factors influencing these stages are of great importance in fisheries science.

scholarly journals Impact of ocean acidification and warming on the Mediterranean mussel (Mytilus galloprovincialis)

2014 ◽  
Vol 1 ◽  
Author(s):  
Frédéric Gazeau ◽  
Samir Alliouane ◽  
Christian Bock ◽  
Lorenzo Bramanti ◽  
Matthias López Correa ◽  
...  
Keyword(s):  
Ocean Acidification ◽  
Mytilus Galloprovincialis ◽  
Mediterranean Mussel ◽  
The Mediterranean

Effects of the duration of cold stratification on early life stages of the Mediterranean alpine plantSilene ciliata

Plant Biology ◽  
2014 ◽  
Vol 17 (2) ◽  
pp. 344-350 ◽  
Author(s):  
A. García-Fernández ◽  
A. Escudero ◽  
C. Lara-Romero ◽  
J. M. Iriondo
Keyword(s):  
Early Life ◽  
Cold Stratification ◽  
Life Stages ◽  
Early Life Stages ◽  
The Mediterranean

Interactive Effects of Ocean Acidification, Elevated Temperature, and Reduced Salinity on Early-Life Stages of the Pacific Oyster

2014 ◽  
Vol 48 (17) ◽  
pp. 10079-10088 ◽  
Author(s):  
Ginger W. K. Ko ◽  
R. Dineshram ◽  
Camilla Campanati ◽  
Vera B. S. Chan ◽  
Jon Havenhand ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
Ocean Acidification ◽  
Early Life ◽  
Pacific Oyster ◽  
Interactive Effects ◽  
Life Stages ◽  
Early Life Stages ◽  
The Pacific

scholarly journals Effects of ocean acidification on trace element accumulation in the early-life stages of squid Loligo vulgaris

2011 ◽  
Vol 105 (1-2) ◽  
pp. 166-176 ◽  
Author(s):  
T. Lacoue-Labarthe ◽  
E. Réveillac ◽  
F. Oberhänsli ◽  
J.L. Teyssié ◽  
R. Jeffree ◽  
...  
Keyword(s):  
Ocean Acidification ◽  
Trace Element ◽  
Early Life ◽  
Life Stages ◽  
Early Life Stages ◽  
Loligo Vulgaris ◽  
Element Accumulation ◽  
Trace Element Accumulation

scholarly journals European sea bass, <i>Dicentrarchus labrax</i>, in a changing ocean

2014 ◽  
Vol 11 (9) ◽  
pp. 2519-2530 ◽  
Author(s):  
E. C. Pope ◽  
R. P. Ellis ◽  
M. Scolamacchia ◽  
J. W. S. Scolding ◽  
A. Keay ◽  
...  
Keyword(s):  
Ocean Acidification ◽  
Early Life ◽  
Dicentrarchus Labrax ◽  
Sea Bass ◽  
Life Stages ◽  
Daily Mortality ◽  
Early Life Stages ◽  
European Sea Bass ◽  
Carbon Dioxide Co2 ◽  
Global Threat

Abstract. Ocean acidification, caused by rising concentrations of carbon dioxide (CO2), is widely considered to be a major global threat to marine ecosystems. To investigate the potential effects of ocean acidification on the early life stages of a commercially important fish species, European sea bass (Dicentrarchus labrax), 12 000 larvae were incubated from hatch through metamorphosis under a matrix of two temperatures (17 and 19 °C) and two seawater pCO2 levels (ambient and 1,000 μatm) and sampled regularly for 42 days. Calculated daily mortality was significantly affected by both temperature and pCO2, with both increased temperature and elevated pCO2 associated with lower daily mortality and a significant interaction between these two factors. There was no significant pCO2 effect noted on larval morphology during this period but larvae raised at 19 °C possessed significantly larger eyes and lower carbon:nitrogen ratios at the end of the study compared to those raised under 17 °C. Similarly, when the incubation was continued to post-metamorphic (juvenile) animals (day 67–69), fish raised under a combination of 19 °C and 1000 μatm pCO2 were significantly heavier. However, juvenile D. labrax raised under this combination of 19 °C and 1000 μatm pCO2 also exhibited lower aerobic scopes than those incubated at 19 °C and ambient pCO2. Most studies investigating the effects of near-future oceanic conditions on the early life stages of marine fish have used incubations of relatively short durations and suggested that these animals are resilient to ocean acidification. Whilst the increased survival and growth observed in this study supports this view, we conclude that more work is required to investigate whether the differences in juvenile physiology observed in this study manifest as negative impacts in adult fish.

Sensitivity to UV radiation in early life stages of the Mediterranean sea urchin Sphaerechinus granularis (Lamarck)

2009 ◽  
Vol 407 (6) ◽  
pp. 1892-1900 ◽  
Author(s):  
Sarah Nahon ◽  
Viviana A. Castro Porras ◽  
Audrey M. Pruski ◽  
François Charles
Keyword(s):  
Mediterranean Sea ◽  
Uv Radiation ◽  
Sea Urchin ◽  
Early Life ◽  
Life Stages ◽  
Early Life Stages ◽  
The Mediterranean
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