Blog Posts by Category
2 days ago
A most interesting relationship between species. The Marine Detective observations bring awareness to our marine environment.The life and times of Giant Nudibranchs (and Tube-Dwelling Anemones). With coincidence, I had posted about Giant Nudibranchs yesterday and then went diving and had this great photo opportunity. The Giant Nudibranch was crawling away from where it had laid its fertilized eggs on its prey (note that there are thousands of developing embryos in that egg mass). It's what nudibranchs do. They most often lay their eggs right atop their prey. When you consider that the egg masses / ribbons of every nudibranch species look different, this is a REALLY valuable clue in trying to solve whodunnits for nudibranch eggs. If you know their prey, you have a good chance of knowing whose eggs you are looking at.
The other species in the lower photo is another giant - the Giant Sea Cucumber - Parastichopus californicus to 50 cm long.
Please know as you reflect on the ocean off our coast, that where there is sand, these species are common and living out their lives while many of us do not even know about them. This was only at ~6 m depth.
If you've not seen it already, here's the link to my blog showing the stunning diversity of colour in Giant Nudibranchs, how the swim and, how they POUNCE on their prey.
©2020 Jackie Hildering; The Marine Detective
May 31, 2020, Telegraph Cove. ... See MoreSee Less
4 days ago
Strange, wonderful things are everywhere! Botany group member Joy Dawson found and photographed these yellow and purple Vancouver groundcones in the Comox Lake area. Groundcone is a "root parasite" on salal, kinnickinnick and other members of the heather family. ... See MoreSee Less
Category Archives: Shoreline
From an email by Jocie Brooks to members of the Botany Group on May 26. This week, I’d like to draw attention to our amazing estuary, which is full of fascinating plants, many of which are now in bloom. Experience the … Continue reading
From an email by Randal Mindel to members of the Shoreline Group on May 13. Last weekend saw the passing of a strong tide cycle that took the group out to lots of nearby beaches. Below are some photos and … Continue reading
This post is by Randal Mindell, leader of the CVN Shoreline Group, from an email to members of the group on April 15. Hope this finds you all well. We just passed through a great set of spring tides over … Continue reading
The next shoreline outing will be our first estuarine outing. When: 9:30-11:30 am, Thursday, September 26th. (3.5 foot low tide is 10:15) Where: Meet at the the end of Carey Place in Royston What: Surveying the algae, plants and invertebrates … Continue reading