Ocean acidification effect Flashcards
How does rearing in elevated CO2 affect early life stage? (5)
- Form (growth, dimensions, development)
- Function (metabolic rate, mitrochondrial function)
- Metabolites (metabolome)
- Proteins (proteome)
- Gene expression (transcriptome)
What occurs when rearing larvae at biologically relevant CO2 levels.
can induce a number of developmental and energetic constraints
What trophic approach suggest ‘impact’ threshhold .
bottom-up
what must be considered when examining deleterious effects of CO2 on echinoderm larvae?
genetic variability
how will CO2 move into cell membranes?
through dispersion. there is no barrier against CO2. CO2 dissociates into hydrogen and bicarbonate.
–> CO2 will move into cell membrane though hydrogen and bicarbonate, and will need to be pumped back out.
the amount of magnesium in a product affects what?
the solubility of a product
what type of organisms are highly soluble?
why?
echinoderms.
-low pH increases CO2, shell dissolves
how does ocean acidification affect habitats?
as the ocean acidifies, it reduces the niche in which these animals exist. (echinoderms) (losing shell/not losing shell)
how does ocean acidification affect urchin?
pleuteus larvae
- spicules produced by calcium
- if they cannot produce spicules they will become mutated and die
how can acidification affect recruitment?
elevated CO2 levels can affect even embryos at a very young developmental stage
is there variability between urchin/echinoderms?
some crosses are more adapted to change.
-there is some potential for survival in ocean acidification, based on parental pairage.
how does our coastal conditions affect the pH?
our coastal upwelling creates a highly variable pH
-this allows our urchins to be more tolerant of pH
