At a global scale, harmful algal blooms (HABS) are appearing in many places, often new places, and lasting longer than previously recorded. Across Florida, the occurrence of algal blooms, caused by various species of phytoplankton, has been intensifying. In the summer of 2016, a state of emergency was declared because a toxic cyanobacterial bloom occurred in Lake Okeechobee which spread into and throughout the St. Lucie River and Estuary. Water samples collected during the bloom helped identify a limiting nutrient. 1. Data from a Burger et al. (2004) indicate that mercury levels in Florida gar, top-level predators, from Lake Okeechobee were not higher than mercury levels of fish muscle from other locations in the United States. However, mercury levels in the livers of Florida gar were above the level considered safe for human consumption. a. Explain why this is good news for people who fish in Lake Okeechobee. b. Explain why this is bad news for non-human consumers of fish, and how it might be bad news for the ecosystem as a whole.
At a global scale, harmful algal blooms (HABS) are appearing in many places, often new places, and lasting longer than previously recorded. Across Florida, the occurrence of algal blooms, caused by various species of phytoplankton, has been intensifying. In the summer of 2016, a state of emergency was declared because a toxic cyanobacterial bloom occurred in Lake Okeechobee which spread into and throughout the St. Lucie River and Estuary. Water samples collected during the bloom helped identify a limiting nutrient. 1. Data from a Burger et al. (2004) indicate that mercury levels in Florida gar, top-level predators, from Lake Okeechobee were not higher than mercury levels of fish muscle from other locations in the United States. However, mercury levels in the livers of Florida gar were above the level considered safe for human consumption. a. Explain why this is good news for people who fish in Lake Okeechobee. b. Explain why this is bad news for non-human consumers of fish, and how it might be bad news for the ecosystem as a whole.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:At a global scale, harmful algal blooms (HABS) are appearing in many places, often new places, and
lasting longer than previously recorded. Across Florida, the occurrence of algal blooms, caused by
various species of phytoplankton, has been intensifying. In the summer of 2016, a state of
emergency was declared because a toxic cyanobacterial bloom occurred in Lake Okeechobee which
spread into and throughout the St. Lucie River and Estuary. Water samples collected during the
bloom helped identify a limiting nutrient.
1. Data from a Burger et al. (2004) indicate that mercury levels in Florida gar, top-level predators, from
Lake Okeechobee were not higher than mercury levels of fish muscle from other locations in the
United States. However, mercury levels in the livers of Florida gar were above the level considered
safe for human consumption.
a. Explain why this is good news for people who fish in Lake Okeechobee.
b. Explain why this is bad news for non-human consumers of fish, and how it might be bad news for
the ecosystem as a whole. *
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