Marine & Freshwater Environmental Education
Knot is a measure of nautical speed. More specifically one knot equals one nautical mile per hour. One nautical mile equals 6,080 feet.
The term knot came from how sailors calculated speed. They threw a log with a rope attached to it overboard. The rope had knots evenly spaced (every 47 feet and 3 inches). Therefore, by calculating the knots let out in a specific time frame (every 28 seconds) the speed was calculated.
It’s “Humuhumunukunukuāpua’a” in case you missed it when the bartender mentioned it in Forgetting Sarah Marshall. As a bonus, I’ll also give you a rundown of all the other states with a state saltwater/game fish. Some you may already know, but some might surprise you! I never would have thought that so many states have […]
The male fiddler crabs have one claw that is much larger than the other. This extra large claw is shaped like a fiddle. It is useful for two main reasons. The first being that if waved in a certain manner it attracts some hot chicks, er, female fiddler crabs. The second is that it is […]
Here are two questions we should all be asking ourselves: How does marine debris impact the ocean and Great Lakes? What are you doing to help prevent marine debris? This year the NOAA Marine Debris Program Art Contest is sponsor another amazing art contest for students in grades K-8 from all U.S. states and territories. Make sure that […]
An animal has many reasons to behave more like a ‘wallflower’ vs. a ‘social butterfly’. Some of the more universal reasons to lean to one behavior more than the other would be 1) habitat, 2) predators or 3) availability of food. For instance, river dolphins (pictured right) typically are solitaire animals because their habitat is […]
The decorator crab will hold a piece of decoration against it shell until it begins to grow there! Find out what’s used as a decoration here.
This might sound familiar (since I recently retweeted from @NOAAOceanToday) but there was recently an article discussing the virtues of sea slugs. In particular that they have been used to understand how to maximize the effectiveness of long-term memory in humans. Also, check out these divers (with the Bamfield Marine Sciences Centre in Bamfield, BC) […]
Even if you don’t live by the ocean you should care about it and issues associated with its health. Yes, the ocean ecosystem is unhealthy. Industry, industry, and more industry popped up in the last century and brought with it increased emissions into the atmosphere causing climate change. The ocean is the largest ecosystem on […]
From time to time, I like to revisit the more popular posts and present either new material or the material in a new format. Below is a simplified understanding of the three general ways that fish give birth (i.e., Within each category below there are sub-categories that I did not get into here). Please feel free […]
People often wear shark’s teeth around their neck. But, what is the significance and how do they get them? As the internet research states a sharks tooth symbolizes virility. I am not going to get any further into that aspect of the question. To each his or her own. Here is some information on the […]
I am writing this as a very long overdue expansion to a post that I wrote November 25, 2008, “What happens if I swallow salt water?“. The pertinent information lacking was the composition of the salt in salt water (my sincerest apologies). The salt in salt water is: 77.6% table salt; 10.88% magnesium chloride; 4.74% […]
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