Shopping Cart
Your Cart is Empty
Quantity:
Subtotal
Taxes
Shipping
Total
There was an error with PayPalClick here to try again
CelebrateThank you for your business!You should be receiving an order confirmation from Paypal shortly.Exit Shopping Cart

UB Diving. Voted #1 dive shop by a bunch of divers.

Phone: (250) 338-0161

Email: [email protected]

Dive (b)Log

FFF-July 31st

Posted on July 31, 2015 at 1:00 PM

For this week's Friday Fish fact, I have a whole treasure trove of facts for you about starfish.

Starfish (more correctly known as Sea Stars) are not fish. They are Echinoderms. They are related to sea urchins, sea cucumbers and even sand dollars. All Echinoderms have 5 point radial symmetry, which means that their body has 5 sections (or multiples thereof) arranged around a central disk. Next time you're on a beach or diving, see if you can find a sea star, sand dollar and sea urchin and find the 5 sections in each. 

Not all sea stars have 5 arms. While the five-armed varieties of sea star are the most well-known, not all sea stars have 5 arms. Some have many more. Take our local waters Sun Star for instance, which has up to 40 arms! (Picture below)

Amazingly, sea stars can regenerate lost arms. This is useful if the sea star is threatened by a predator - it can drop an arm, get away and grow a new arm. Sea stars house most of their vital organs in their arms, so some can even regenerate an entirely new sea star from just one arm and a portion of the star's central disc. It won't happen too quickly, though. It takes about a year for an arm to grow back.

Sea stars do not have blood. Instead of blood, sea stars have a water vascular system, in which the sea star pumps sea water through its sieve plate, or madreporite, into its tube feet to extend them. Muscles within the tube feet retract them.

Sea stars have eyes. While they can't see as well as we do, sea stars have an eye spot at the end of each arm. This is a very simple eye that looks like a red spot. The eye doesn't see much detail, but can sense light and dark.

Our sea stars are disappearing. I recall diving as little as 5 years ago and encountering dozens of large sea stars on every dive I went on. 

Lately, I am very hard pressed to recall a dive I've done where I've even seen one. It appears that there is a virus that is circulating between the sea star population that is causing them to die rapidly. You can learn more about what is happening at this link.  Virus killing Sea Stars!




Categories: Funday Fish Fact, marine life

Post a Comment

Oops!

Oops, you forgot something.

Oops!

The words you entered did not match the given text. Please try again.

1796 Comments

Reply chrome hearts online store
1:36 AM on August 20, 2021 
I have to express my thanks to this writer just for rescuing me from such a dilemma. After surfing around through the the web and seeing opinions which are not productive, I was thinking my entire life was gone. Existing without the answers to the problems you've fixed by way of your main posting is a crucial case, and those which might have in a wrong way affected my career if I hadn't come across your site. Your capability and kindness in taking care of all the details was crucial. I am not sure what I would've done if I had not come upon such a thing like this. It's possible to at this point relish my future. Thank you very much for this high quality and sensible guide. I will not hesitate to suggest the sites to anybody who would like direction on this subject.
chrome hearts online store http://www.chromeheartstoreonline.com
Reply curry 7 shoes
1:35 AM on August 20, 2021 
I needed to put you a little bit of note to be able to thank you very much the moment again for all the unique suggestions you have discussed in this article. It was quite pretty generous with you giving extensively just what most of us might have offered as an e book to help with making some money on their own, mostly seeing that you could have done it in case you desired. These good ideas additionally worked as the good way to know that many people have a similar desire similar to my own to know whole lot more with reference to this problem. I believe there are many more pleasurable moments in the future for many who looked over your blog post.
curry 7 shoes http://www.curry7shoes.us
Reply lebron shoes
1:35 AM on August 20, 2021 
I wish to show appreciation to the writer just for rescuing me from this crisis. Because of looking out through the world-wide-web and seeing opinions that were not powerful, I was thinking my entire life was well over. Living without the presence of strategies to the problems you have fixed by means of this report is a critical case, and those which might have in a wrong way damaged my career if I hadn't encountered your blog. Your actual training and kindness in playing with all things was useful. I am not sure what I would've done if I hadn't come across such a solution like this. I can at this point look ahead to my future. Thanks for your time very much for the specialized and results-oriented guide. I won't hesitate to suggest your web sites to any individual who will need assistance about this issue.
lebron shoes http://www.lebronjames.us.com
Reply lebron james shoes
1:34 AM on August 20, 2021 
I intended to write you the bit of word to help give thanks yet again for the exceptional secrets you've discussed on this site. It has been certainly generous with people like you to present openly what a few people might have made available as an ebook to earn some cash for their own end, most importantly seeing that you could have done it if you considered necessary. Those strategies additionally acted to be a easy way to know that other people online have the same zeal just as my own to learn a good deal more around this issue. I am sure there are lots of more fun periods in the future for people who find out your site.
lebron james shoes http://www.lebron18.net
Reply yeezy
1:34 AM on August 20, 2021 
I and also my buddies appeared to be checking out the excellent hints from your site then the sudden came up with a horrible suspicion I never thanked you for those tips. All the guys were as a result excited to study all of them and already have honestly been tapping into them. Thank you for genuinely quite helpful as well as for going for this form of magnificent areas millions of individuals are really wanting to discover. My personal sincere regret for not expressing appreciation to earlier.
yeezy http://www.yeezysadidas.us
Reply golden goose sneakers
1:34 AM on August 20, 2021 
I intended to put you the very little note to finally thank you the moment again for all the remarkable information you've provided on this page. It has been certainly seriously open-handed with people like you in giving unhampered all that a few people could possibly have advertised for an e book in making some money for themselves, even more so given that you could have done it if you decided. The creative ideas likewise acted to be the easy way to realize that the rest have the same keenness just as mine to understand very much more concerning this matter. I think there are lots of more fun sessions ahead for those who examine your blog.
golden goose sneakers http://www.goldengoose-sneakers.us
Reply supreme hoodie
1:34 AM on August 20, 2021 
I enjoy you because of each of your labor on this web site. My mom really loves working on investigations and it's really simple to grasp why. Many of us learn all about the compelling means you create advantageous secrets on this blog and as well as boost contribution from visitors about this subject and our simple princess is in fact learning a whole lot. Have fun with the remaining portion of the year. Your performing a brilliant job.
supreme hoodie http://www.supremeclothings.us.com
Reply golden goose
1:34 AM on August 20, 2021 
Needed to write you a little bit of word to be able to say thanks over again over the wonderful pointers you have contributed on this website. It was certainly wonderfully generous of you to allow unreservedly what exactly many of us could possibly have offered for sale as an e-book to earn some money for themselves, and in particular considering the fact that you might have done it if you wanted. The things likewise worked as the easy way to understand that other people online have the identical keenness just like my very own to learn much more concerning this matter. I'm certain there are thousands of more pleasurable occasions ahead for those who browse through your site.
golden goose http://www.goldengooseoutletstore.com
Reply supreme
1:33 AM on August 20, 2021 
I intended to send you that very small observation to be able to give many thanks yet again about the lovely guidelines you have provided in this case. It has been simply remarkably generous with you to present freely all that many people might have distributed as an electronic book to end up making some money for themselves, chiefly considering that you might have tried it in the event you considered necessary. The principles as well worked as the easy way to realize that the rest have a similar dream the same as my personal own to learn way more when it comes to this problem. I think there are some more enjoyable occasions up front for individuals who scan through your website.
supreme http://www.supremeclothings.com
Reply moncler jacket
2:34 AM on August 19, 2021 
I simply desired to thank you so much yet again. I'm not certain the things that I would've followed in the absence of the entire suggestions contributed by you concerning my theme. It was a frightful problem in my opinion, however , encountering a specialized fashion you treated it made me to cry for happiness. I'm grateful for your assistance and thus believe you really know what an amazing job that you are undertaking educating people today by way of your site. I am certain you've never encountered all of us.
moncler jacket http://www.monclersoutletstore.com
Reply air jordans
2:34 AM on August 19, 2021 
I wanted to write you this very small note to say thanks a lot the moment again for your personal magnificent basics you've shown on this site. This is certainly strangely generous of people like you to grant openly all that a lot of folks would have distributed for an electronic book to generate some profit for their own end, most notably considering the fact that you could have tried it in case you desired. Those tricks also worked like the fantastic way to be certain that some people have the same passion the same as my personal own to see lots more in regard to this issue. I am certain there are many more enjoyable times up front for people who read carefully your blog post.
air jordans http://www.cheap-airjordans.us.com
Reply 100% real jordans for cheap
2:34 AM on August 19, 2021 
I needed to compose you one tiny note to finally say thanks a lot over again regarding the striking methods you've shared above. It's really surprisingly open-handed of you to grant extensively precisely what numerous people could possibly have offered for sale as an ebook to get some dough for their own end, certainly since you might well have done it in case you decided. Those good ideas also worked like a good way to recognize that most people have a similar eagerness just like my personal own to understand many more in terms of this problem. Certainly there are many more pleasurable instances in the future for many who looked over your website.
100% real jordans for cheap http://www.jordansforcheap.us.com
Reply curry 6
2:34 AM on August 19, 2021 
I simply wanted to send a small message so as to thank you for all of the lovely ways you are posting on this website. My extensive internet lookup has finally been recognized with good quality details to talk about with my family members. I 'd assert that many of us website visitors are unequivocally endowed to dwell in a magnificent community with very many perfect people with good methods. I feel extremely blessed to have discovered your entire web page and look forward to really more enjoyable times reading here. Thank you once again for everything.
curry 6 http://www.curry-6.us
Reply kyrie 7
2:33 AM on August 19, 2021 
I and also my friends happened to be digesting the good solutions from your web page and then suddenly I got an awful suspicion I had not expressed respect to the web blog owner for those tips. All of the young men became certainly glad to read through all of them and now have without a doubt been enjoying these things. Many thanks for genuinely well accommodating and then for making a decision on such excellent subject matter most people are really desirous to be aware of. My honest regret for not saying thanks to sooner.
kyrie 7 http://www.kyrie-7.com
Reply jordan shoes
2:32 AM on August 19, 2021 
I have to express some appreciation to the writer for bailing me out of such a scenario. Because of surfing through the the web and meeting notions that were not productive, I believed my life was gone. Living without the solutions to the issues you have resolved as a result of your write-up is a critical case, as well as the kind which might have negatively damaged my career if I had not noticed your blog. The natural talent and kindness in handling every aspect was precious. I'm not sure what I would've done if I hadn't encountered such a subject like this. I'm able to at this time relish my future. Thanks very much for this skilled and effective guide. I will not be reluctant to recommend your web page to anyone who will need support about this issue.
jordan shoes http://www.jordanshoes.us
Reply supreme clothing
2:31 AM on August 19, 2021 
Thank you a lot for giving everyone an extraordinarily spectacular chance to read critical reviews from here. It can be so lovely and as well , stuffed with a lot of fun for me personally and my office peers to search your website nearly thrice in one week to see the latest stuff you have got. Not to mention, I'm at all times amazed concerning the good tips you serve. Certain 1 areas in this posting are truly the very best we've had.
supreme clothing http://www.supremeoutlet.us.com
Reply yeezy 700
2:52 PM on August 17, 2021 
I want to express my appreciation to this writer just for bailing me out of this type of trouble. As a result of looking out through the search engines and finding thoughts that were not helpful, I was thinking my entire life was over. Living without the presence of approaches to the issues you have sorted out through your write-up is a crucial case, as well as ones which may have in a wrong way damaged my career if I hadn't discovered the blog. Your personal expertise and kindness in dealing with every aspect was important. I am not sure what I would have done if I had not discovered such a step like this. It's possible to at this point look forward to my future. Thanks a lot very much for this impressive and result oriented help. I won't think twice to recommend your web sites to any individual who wants and needs support on this topic.
yeezy 700 http://www.yeezy-700.com
Reply supreme clothing
2:52 PM on August 17, 2021 
I am also commenting to let you be aware of of the great discovery my princess enjoyed browsing your web page. She mastered several pieces, not to mention what it's like to have an ideal helping heart to get folks completely master specific grueling subject matter. You truly surpassed visitors' expectations. I appreciate you for presenting such necessary, healthy, educational as well as cool tips on the topic to Lizeth.
supreme clothing http://www.supremesonline.com
Reply moncler jacket
2:52 PM on August 17, 2021 
I must express my love for your kindness in support of men and women that actually need assistance with your issue. Your personal commitment to getting the message all around appeared to be unbelievably valuable and has in every case enabled employees like me to realize their dreams. The helpful suggestions means much to me and somewhat more to my office workers. With thanks; from each one of us.
moncler jacket http://www.monclersoutletstore.com
Reply stephen curry shoes
2:51 PM on August 17, 2021 
A lot of thanks for each of your hard work on this blog. My mum enjoys making time for research and it's obvious why. A number of us know all concerning the powerful method you convey precious tricks through this blog and attract participation from people on the point then our favorite daughter has been becoming educated a lot of things. Enjoy the remaining portion of the year. You're the one carrying out a wonderful job.
stephen curry shoes http://www.stephcurryshoes.com