Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8870758 | Marine Pollution Bulletin | 2018 | 10 Pages |
Abstract
The effects of ocean warming and ocean acidification on developmental and reproductive traits of Lessonia trabeculata were evaluated. Meiospores were cultured for 35â¯days in an experimental mesocosm where temperature (~15 and 19â¯Â°C) and partial CO2 pressure (pCO2, ~400 and 1300â¯Î¼atm) were controlled. The results indicate that germination was reduced at 19â¯Â°C, whereas the increase of pCO2 only had effects at 15â¯Â°C. Likewise, the increase in temperature significantly affected the vegetative growth of female gametophytes. Sex ratio was not affected significantly by any of the variables studied. Fertility and reproductive success decreased by about 50% at 19â¯Â°C. The pCO2 levels had no significant effects on most early developmental traits. The results suggest that ocean warming or periodic warming events (e.g. an El Niño event) might affect the recruiting capacity of this or other similar species by affecting their early developmental stages.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Oceanography
Authors
Claudio P. González, Mario Edding, Rodrigo Torres, Patricio H. ManrÃquez,