Operculum is the hard scalelike cover of the gills of bony fishes. Cartilaginous fishes (such as sharks, skates and rays) all lack a gill cover.
Image (c) www.webs.lander.ed
Marine & Freshwater Environmental Education
Operculum is the hard scalelike cover of the gills of bony fishes. Cartilaginous fishes (such as sharks, skates and rays) all lack a gill cover.
Image (c) www.webs.lander.ed
This site uses Akismet to reduce spam. Learn how your comment data is processed.
Rest assure those crab skeletons are not all dead crabs. They are the molts from the animals. Crabs, lobsters, horseshoe crabs, and many other crustaceans go through a molting phase and the old shell is basically washed up in the wrack line. The wrack line is the deposits from the ocean after the tide has […]
Trilobites are not an opportunity to taste test three different bites of food. They are an extinct marine arthropod, that looked like a squashed centipede, dating back to the Cambrian period. They’re quite significant because paleontologists use them as an index fossil for dating back other rock structures. Image (c) smithsonianmag.com
“It is the supreme art of the teacher to awaken joy in creative expression and knowledge”. Albert Einstein (1879 – 1955) German-Swiss-U.S. scientist “The scientist is not a person who gives the right answers, he’s one who asks the right questions”. Claude Levi-Strauss (1908 – 2009) French anthropologist and ethnologist “Those that can’t do, teach”. […]
Until I saw the sea I did not know that wind could wrinkle water so I never knew that sun could splinter a whole sea of blue nor did I know before, a sea breathes in and out upon a shore by Lilian Moore
In late 2008, I wrote a very simple post explaining ‘salinity’ and the overall general amount of salt in the ocean. Now, with new data being collected by NASA (in a joint mission with Argentina) using the Aquarius instrument aboard a satellite, Satélite de Aplicaciones Científicas, we are able to more completely understand “How salty […]
Find more great ocean and conservation quotes here and please feel free to share with your friends and family! Also, ask away! If you have a question about something you found on the beach or just something you’re curious about just send an email to info@beachchairscientist.com or tweet us!
That’s right! American lobsters can be blue (rather than the brownish/green color they typically are prior to cooking) due to either a genetic modification or an abnormal diet. Both colored lobsters taste the same. One in every two million lobsters can be blue. Enjoy this funny video from the folks at CapeCast.
The amount of salt in the ocean, known as ‘salinity’, is a measure of the of the amount of salt dissolved in 1000 grams of water. The amount is expressed as parts per thousands (ppt). Refractometers are a tool used to measure the amount of salinity in the ocean. The salinity in the ocean is […]
This is a whimsical – yet still direct and profound – image I wanted to share from from my Ocean Conservation Inspiration Pinterest board. Do you have a particular phrase or image that drives you?
Can you match the scientific name to each of the fish from this Independence Day-themed trio? Leave your answer as a comment. Even better … also, try to identify each one by their common name. Have a happy and safe Fourth of July, everyone!
Copyright © 2024 · Free Wordpress Install by FreemiumPress.com
Speak Your Mind