Term
| what categories of disease are affecting corals and contributing to their die offs? |
|
Definition
| black band disease, bleaching, white plagues |
|
|
Term
| how does overfishing, urchin pathogens affect coral abundance? |
|
Definition
when fish and urchin levels decline there is nothing to feed on the algae,
algae levels grow and outcompete coral leading to their decline |
|
|
Term
| why are marine diseases spreading more rapidly than terrestrial ones? |
|
Definition
water currents carry pathogens quickly and to new areas
land pathogens can get into the water from run offs |
|
|
Term
| what is aspergillus sydowii? |
|
Definition
marine fungal pathogen that originated from a terrestrial run off (host shift)
causes purpling of sea plants, necrosis |
|
|
Term
| what are some drivers of ocean disease? |
|
Definition
climate change
eutrophication
coastal population density---> runoffs, urbanization |
|
|
Term
|
Definition
loss of zooxanthellae symbiont
increasing frequency and severity
induced by elevated sea temps/ symptom of thermal stress |
|
|
Term
| what is the saharan dust hypothesis? |
|
Definition
|
|
Term
|
Definition
harmful algal blooms, 1 species growing out of control
produce toxic substances that can get into the food that humans eat |
|
|
Term
what is toxoplasma gondii? what species was affected? how did the pathogen get into the
water? |
|
Definition
newly introduced water pathogen
affected sea otters
runoff into the sea from pet feces on land, sewage treatment, feral cat colonies |
|
|
Term
|
Definition
highly polymorphic loci that control immune system self/nonself recognition
females selectively mate with male with genes that will enhance immune system of
her progeny |
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