Blog Posts by Category
2 days ago
Thumbing through Slime Mold Identification & Appreciation page and delighted to see the beauty of iridescent of Lamproderma slime molds and the colours found in a variety of slime molds. Have you found a slime mold to share on this page? ... See MoreSee Less
5 days ago
Have you wondered about the life span of a sea urchin?Red Urchin in the forest. This individual may be 100 years old . . . or older. Really.
Research has also found that there is no diminished fitness with age in this species i.e. there is no senescence. The older Red Urchins are in fact the ones that produce the most eggs and sperm. They also continue to grow throughout their lives albeit at a very slow rate.
And a bad pun: I urchin you to share this #DailyDoseOfDepth with a friend. 🙂
Age determined by (1) tagging individual sea urchins and injection with tetracycline, which becomes incorporated into the sea urchin skeleton and can be used to track the growth rates and (2) measuring carbon-14, which has increased in all living organisms following the atmospheric testing of atomic weapons in the 1950s.
Strongylocentrotus franciscanus to 30 cm across. If you look closely you can see the tube feet among the spines.
Photo: ©Jackie Hildering; The Marine Detective
October 4th near Telegraph Cove.
- Amir, Y.; Insler, M.; Giller, A.; Gutman, D.; Atzmon, G. Senescence and Longevity of Sea Urchins. Genes 2020, 11, 573. www.mdpi.com/2073-4425/11/5/573/htm
Ebert, Thomas. (2008). Longevity and lack of senescence in the red sea urchin Strongylocentrotus franciscanus. Experimental Gerontology. 43. 734-738. 10.1016/j.exger.2008.04.015. www.researchgate.net/publication/222349781_Longevity_and_lack_of_senescence_in_the_red_sea_urchin...
#MarineBiology #Urchin ... See MoreSee Less
Category Archives: NatureKids
March 8: Seaside Treasures – We will go on a beach walk at Goose Spit Park to find and identify different beach items. Note: the time will be earlier than usual (11am to 1pm) to match with low tide times. More … Continue reading
Hello NatureKids families! What a refreshing afternoon in the Seal Bay Park forest. We learned how forests can be magical by providing us with many different things such as homes, food, jobs, products, clean water, and oxygen. Not only do … Continue reading
Sunday, June 25 NatureKids Little River Park, 9:30 am Meet at 9:30 am at park entrance on Wilkinson Road off Ellenor Road (near Comox to Powell River ferry terminal). This little park is rarely visited, except by the local residents. … Continue reading
Comox Valley NatureKids The next Explorer Day will be on Sunday, March 26th, 1:00-3:00 pm at Woodhus Slough (meeting at Salmon Point). Our special guest for this walk is Luisa Richardson, a Campbell River naturalist who is very experienced at … Continue reading