living in a contaminated estuary - behavioral changes and ecological consequences for five species
DESCRIPTION
Discussion of Weis et al. 2011 by Chao Wang, CIAM 6117 UPR Rio PiedrasTRANSCRIPT
Living in a Contaminated Estuary: Behavioral Changes and
Ecological Consequences for Five Species
Wang Chao
30 Sep. 2013
Publishing
Authors:
Judith S. Weis,
Lauren Bergey,
Jessica Reichmuth,
Allison Candelmo
Source: BioScience, Vol. 61, No. 5
(May 2011), pp. 375-385
Topic
1. One side is from the estuary
pollution.
2. The other side is from the effect
to species by pollution.
Estuary Pollution
Urban areas often grow up around estuaries.
Industrial development often leaves a legacy
of pollution in these areas.
The Georges River Estuary
http://www.georgesriver.org.au/Estuary-Management-Plan.html
Estuary Pollution
http://estuaries.noaa.gov/Estuarylive/VideoGallery.aspx?ID=43
http://estuaries.noaa.gov/Estuarylive/VideoGallery.aspx?ID=33
First,let’s watch a video.
After watch the video
Do you think what things are
the major sources of pollution to the estuary?
Metals, oils, toxic organic compounds
such as (PCB)…
and high levels of nutrients......
Estuary Pollution
Note: PCB stand for polychlorinated biphenyl
Main Topic--Behavioral Changes
This paper focus on the feeding behavior
and predator-prey relations in contaminated
and clean estuaries and examining population
and community-level consequences.
Questions and discussion
Questions and discussion
http://www.flickr.com/photos/neilfisher/5977061232/
http://ocean.nationalgeographic.com/ocean/photos/sea-urchins/
http://www.seafriends.org.nz/images/urchin.htm
Top-downurchin
kelpSea otter
Questions and discussion
Feeding habits and diet, physiology, body
size, and reproductive rate affect how a
species responds to contaminant stress,
but all of those traits can themselves be
altered by contamination.
Plasticity of traits, especially feeding
habits, is important in a changing
environment.
Questions and discussion
Body size
Questions and discussion
Feeding
Questions and discussion
Questions and discussion
Questions and discussion
Questions and discussion
Are organisms at higher trophic levels more likely to be affected?
Reynolds PL, Bruno JF (2012) Effects of Trophic Skewing of Species Richness on Ecosystem Functioning
in a Diverse Marine Community. PLoS ONE 7(5): e36196. doi:10.1371/journal.pone.0036196
Questions and discussion
Are certain taxonomic groups more likely to be
successful under contaminant stress?
Different special have different tolerance to the
contaminated estuary.
For example, Bergey et al. (2007) pointed that one
trait of crustacean that may promote their greater
success could be the ability to move contaminants
into their exoskeletons before molting.