deep water coral reefs

• what can not reach deep coral reefs?

  sunlight
• what is another name for deep water coral reefs?

  cold water coral reefs
• what is the common feature of the deep water coral reefs?

  • lack of sunlight
  • to support photosynthetic algae
  • within the coral polyps
• what dont the coral polyps have?

  symbiotic photosynthetic algae
• what does no symbiotic photosynthetic algae cause?

  • less food energy available
  • grow slower than tropical coral reefs
• what is an ecological feature of deep water coral reefs ?

  no symbiotic photosynthetic algae
• what is the importance of deep water coral reefs ?

  support large biomass of fish that have low reproduction so easy to exploit
• why are deep water coral reefs easy to over exploit ?

  large biomass of fish with a low reproductive rate
• name 3 species in deep water coral reefs?

  • roundnose grenadier
  • blue whiting
  • orange roughly
• what species have some exploitation have been banned in deep coral reefs ?

  orange roughy
• what are the 2 main threats to deep water coral reefs?

  deep water trawling

  oil and gas
• what has deep water trawling caused?

  • by catch
  • damage to reef
• how does oil and gas harm deep water coral reefs?

  cause the release of co2 which increases ocean acidification
• what conservation effort has occured to stop trawling?

  • darwin mounds SAC north west scotland
  • oculina bank florida protected