Finned foliage

I wanted to share this image of anthias swimming in the Red Sea to usher in the briskness of autumn! As you know it’s my favorite time to beachcomb, but it’s also my favorite time to be surrounded by the brilliant-colored leaves of trees. The reds, yellows, and oranges are as vibrant as a coral reef

These schooling anthias are interesting because they are born one sex, but then change to another. In fact, all anthias are born female and only change to male if the male in their school dies. Most anthias remain female their entire life. This type of hermaphrodite is known as protogynous (proh-TAH-guh-nus). If it were the other way (beginning their life as male and changing to female) it would be known as protandrous (pro–TAN-dur-us).

RedseaAnthiasThe image is from Free Underwater Images, a new favorite resource. This website “promotes increased awareness of the marine environment by allowing users to download free, high quality underwater photos.  All images are in the public domain and free for any use without prior written permission and without fee or obligation. Images can be used for any non commercial purpose”.

Test your knowledge: National Ocean Science Bowl biology

Here are some more sample questions from the Consortium for Ocean Leadership‘s popular National Ocean Science Bowl (NOSB). These questions come from the Biology section.

Good luck!

1) Northern elephant seals come ashore during the spring and summer to do what? a) Mate b) Eat c) Give birth d) Shed their fur

2) The habitat of blue whales, tunas and swordfishes is best described as: a) Benthic b) Littoral c) Estuarine d) Pelagic

3) Intensive aquaculture of which of the following organisms has contributed to loss of mangroves around the world? a) Tilapia b) Cod c) Salmon d) Shrimp

4) Lophelia (LO-fee-lee-ua) coral reefs in the North Atlantic are being primarily damaged by: a) Pfiesteria b) Poisoning c) Rising temperatures d) Trawling

How long do seastars live?

Seastars can live up to 35 years in the wild! It really depends on the species. Their wild habitat includes coral reefs, rocky coasts, sandy bottom, or even the deep sea of all the world’s oceans. There are approximately 1,800 different types of sea stars.

They have been known to live up to 10 years in aquariums.

More links on seastars:

http://animals.nationalgeographic.com/animals/invertebrates/starfish.html

http://users.bigpond.net.au/je.st/starfish/index.html

But we’ve only scratched the surface here. Check back often at http://www.beachchairscientist.com for more insight about your favorite beach discoveries.