The sturgeon is one of the oldest bony fishes in existence. The fossil record shows that it has been around for 175 million years. It bones are made of primarily of cartilage similar to a shark’s. There are various species of sturgeon live in Europe, Asia and North America. Seven species of sturgeon have been reported in North America and two are found in on the west coast – green sturgeon (Acipenser medirostris) and white sturgeon (Acipenser transmontanus). Continue reading
Monthly Archives: February 2007
Where do you live?
At the current level of sea level increase how long will it take before your home is flooded?
How good is your boat?
If the sea level rose 30 feet 25% of the U.S. population would be directly affected.
Energy: How nature uses it
Most of us think of energy as electricity from a plug or gasoline from our favorite station. These forms of energy run our tools, toys and keep our homes at a temperature that we like. For fish and all other living things, energy takes the form of food or direct conversion of sunlight. These forms of energy come from only one place and that’s the sun, directly or indirectly. Continue reading
Declining fish energy
The energy we receive from the fish we catch has been on the decline for the last 25 years.
How do it know?
For those of us who are not fluent in several languages or do not have multiple dictionaries this is a great resource.http://babelfish.altavista.com/
Global change directory
Between the known and the unknown there are doors.A link node for global warming.http://gcmd.gsfc.nasa.gov/
Eye on the pop …
Population clock for the United States and the world.http://www.census.gov/main/www/popclock.html
Stress kills!
In our modern society we tend to be put under stressful conditions. The origin of that stress can come from many different sources – from one source at a time or several. It can be our jobs, family, the environment or many other things. These conditions can affect just one individual at a time or an entire population. In the end it really does not matter because as individuals or populations we all react much in the same way to stress. A key factor in that induces stress in populations is over crowding. Continue reading
Grow a spine!
Fish constitute nearly half (18,818) of all the animals with a spine on the planet.
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