NutrientLoading: Difference between revisions
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A new study has shown that reefs overgrown with algae or characterized by coral rubble send chemical cues that repel juvenile fish, while healthy coral colonies attract new recruits. | A new study has shown that reefs overgrown with algae or characterized by coral rubble send chemical cues that repel juvenile fish, while healthy coral colonies attract new recruits. | ||
Overview and Definition: nutrient loading: the influx of nutrients into the water surrounding reefs that negatively affects the overall health of the reefs | |||
'''The Importance of Nutrients''' | |||
Essential Plant Nutrients (carbon, hydrogen, and oxygen) | |||
Nutrient Limitation | |||
Biogeochemical Cycles | |||
Differences Between Solid and Liquid Nutrients | |||
'''The Effects''' | |||
Indirect (cycles of carbon, hydrogen, and oxygen; adjustments to the biosphere; tourist levels decrease) | |||
Direct (algae build up, degradation of reefs, relocating of fish life, nutrient cycling adjustments) | |||
'''Too Many Nutrients/Not Enough Nutrients''' | |||
Level of nutrients must be perfect, not too many, and not too less | |||
Sources: | |||
http://www.ncbi.nlm.nih.gov/pubmed/11381890 / http://www.dnr.state.md.us/coastalbays/water_quality/nutrient_load.html / http://www.sciencedirect.com/science/article/pii/S1877343513001917 / http://reefkeeping.com/issues/2006-08/cj/index.php / http://www.fisherycrisis.com/coral3.html / http://oregonstate.edu/ua/ncs/archives/2013/nov/large-study-shows-pollution-impact-coral-reefs-%E2%80%93-and-offers-solution / http://www.windward.hawaii.edu/facstaff/miliefsky-M/BIOL%20171L/Lab%200%20Intro/review02.pdf | |||
Dixson, Danielle L., David Abrego, and Mark E. Hay. Chemically mediated behavior of recruiting corals and fishes: A tipping point that may limit reef recovery. Science 22 August 2014: | Dixson, Danielle L., David Abrego, and Mark E. Hay. Chemically mediated behavior of recruiting corals and fishes: A tipping point that may limit reef recovery. Science 22 August 2014: | ||
Vol. 345 no. 6199 pp. 892-897. DOI: 10.1126/science.1255057 | Vol. 345 no. 6199 pp. 892-897. DOI: 10.1126/science.1255057 | ||
Revision as of 16:41, 25 February 2015
Nutrient Loading
Coral reefs thrive in nutrient poor water. Excess nutrients from runoff, wastewater treatment plants, coastal development, marinas, etc. can encourage the growth of fast-growing macroalgae, which can smother a reef.
A new study has shown that reefs overgrown with algae or characterized by coral rubble send chemical cues that repel juvenile fish, while healthy coral colonies attract new recruits.
Overview and Definition: nutrient loading: the influx of nutrients into the water surrounding reefs that negatively affects the overall health of the reefs
The Importance of Nutrients Essential Plant Nutrients (carbon, hydrogen, and oxygen) Nutrient Limitation Biogeochemical Cycles Differences Between Solid and Liquid Nutrients
The Effects Indirect (cycles of carbon, hydrogen, and oxygen; adjustments to the biosphere; tourist levels decrease) Direct (algae build up, degradation of reefs, relocating of fish life, nutrient cycling adjustments)
Too Many Nutrients/Not Enough Nutrients Level of nutrients must be perfect, not too many, and not too less
Sources: http://www.ncbi.nlm.nih.gov/pubmed/11381890 / http://www.dnr.state.md.us/coastalbays/water_quality/nutrient_load.html / http://www.sciencedirect.com/science/article/pii/S1877343513001917 / http://reefkeeping.com/issues/2006-08/cj/index.php / http://www.fisherycrisis.com/coral3.html / http://oregonstate.edu/ua/ncs/archives/2013/nov/large-study-shows-pollution-impact-coral-reefs-%E2%80%93-and-offers-solution / http://www.windward.hawaii.edu/facstaff/miliefsky-M/BIOL%20171L/Lab%200%20Intro/review02.pdf
Dixson, Danielle L., David Abrego, and Mark E. Hay. Chemically mediated behavior of recruiting corals and fishes: A tipping point that may limit reef recovery. Science 22 August 2014: Vol. 345 no. 6199 pp. 892-897. DOI: 10.1126/science.1255057