Example of Detailed Lesson Plan in Values Education
Dolphins have been kept in captivity for since the 1870s. The keeping of dolphins has long been a controversial issue. The main argument for keeping dolphins in captivity relates to the positive conservation message that seeing a living dolphin can create. Those who argue against dolphins in captivity highlight the inadequacy of dolphinariums to cater for the needs of these highly intelligent creatures. Today, North American dolphinariums are successfully breeding these cetaceans and are not dependent on removing them from the wild.
The Dangers of Dolphin Meat
By: Kelcie Pegher dolphin meat
Questions About Dolphin Hunting
Why Do People Hunt Dolphins?
Photos of the Dolphin Hunt It's a fact: dolphin meat contains high levels of methylmercury. However, not all scientists agree on a simple question: is it safe to eat dolphin meat?
Why Is There Mercury in Dolphin Meat?
International studies have found high levels of mercury in dolphins. This is because dolphins are at the top of the food chain. It's like this: dolphins eat large fish, which in turn eat small fish, which feed on zooplankton, which graze on algae. Algae absorb small amounts of mercury from the aquatic environment. A single zooplankton will ingest large amounts of algae; as a result, it will contain a larger percentage of mercury than each individual algae it eats. As one goes further up the food chain, mercury levels become more and more amplified.
In addition, animals higher up the food chain tend to have higher life spans. So what started as trace amounts of mercury can add up over the 18-to-50 year life span of a dolphin.
Where does the mercury come from? Mercury is released naturally from the ground, but the World Health Organization reports that 70 percent of mercury released in the past 100 years has been manmade, primarily from the burning of wastes containing inorganic mercury and from the burning of fossil fuels, particularly coal.
Who Eats Dolphin Meat?
Small towns that still practice dolphin
The Dangers of Dolphin Meat
By: Kelcie Pegher dolphin meat
Questions About Dolphin Hunting
Why Do People Hunt Dolphins?
Photos of the Dolphin Hunt It's a fact: dolphin meat contains high levels of methylmercury. However, not all scientists agree on a simple question: is it safe to eat dolphin meat?
Why Is There Mercury in Dolphin Meat?
International studies have found high levels of mercury in dolphins. This is because dolphins are at the top of the food chain. It's like this: dolphins eat large fish, which in turn eat small fish, which feed on zooplankton, which graze on algae. Algae absorb small amounts of mercury from the aquatic environment. A single zooplankton will ingest large amounts of algae; as a result, it will contain a larger percentage of mercury than each individual algae it eats. As one goes further up the food chain, mercury levels become more and more amplified.
In addition, animals higher up the food chain tend to have higher life spans. So what started as trace amounts of mercury can add up over the 18-to-50 year life span of a dolphin.
Where does the mercury come from? Mercury is released naturally from the ground, but the World Health Organization reports that 70 percent of mercury released in the past 100 years has been manmade, primarily from the burning of wastes containing inorganic mercury and from the burning of fossil fuels, particularly coal.
Who Eats Dolphin Meat?
Small towns that still practice dolphin