Tootfinder

🦠 Climate change driving major algae surge in Canada's lakes, study finds
#canada

Climate change driving major algae surge in Canada's lakes, study finds
Algal growth is accelerating in lakes across Canada, including those far from human development, and a new study shows that climate change is the primary driver.

Weekend #Plankton Factoid 🦠🦐
When most people think about algal blooms, they envision bright green water. However, blooms can also be dark red, invoking the colour of blood. A number of groups can generate red pigment blooms including flagellates like red-tide species Karenia brevis and Heterosigma akashiwo, Alexandrium spp. (Shellfish poisoning), the green algae Botryococcus braunii turning…

fresh_webs: Freshwater stream webs
A set of 26 networks of trophic-level species interactions in streams in New Zealand, Maine and North Carolina. Networks include the identities of aquatic insect, algae and fish species and their trophic interactions. Excel and plain text adjacency matrices available; webs can be downloaded individually or as a group.
This network has 110 nodes and 718 edges.
Tags: Biological, Food web, Unweighted, Metadata

"What's slimy, green and flourishing thanks to climate change?"
#Canada #Climate #ClimateChange

What's slimy, green and flourishing thanks to climate change? | CBC News
Canada's lakes are changing because of warming caused by the burning of fossil fuels. Here's why scientists are concerned.

Seaweed-Based Growth Media Could Replace Traditional Cell Culture Media in Cultivated Meat Production https://vegconomist.com/algae-microalgae-seaweed/seaweed-based-growth-media-replace-traditional-cell-…

Seaweed-Based Growth Media Could Replace Traditional Cell Culture Media in Cultivated Meat Production - vegconomist - the vegan business magazine
A new research project led by James Cook University (JCU) and the Singapore Institute of Technology (SIT) is investigating the use of seaweed as a potential

fresh_webs: Freshwater stream webs
A set of 26 networks of trophic-level species interactions in streams in New Zealand, Maine and North Carolina. Networks include the identities of aquatic insect, algae and fish species and their trophic interactions. Excel and plain text adjacency matrices available; webs can be downloaded individually or as a group.
This network has 105 nodes and 343 edges.
Tags: Biological, Food web, Unweighted, Metadata

fresh_webs: Freshwater stream webs
A set of 26 networks of trophic-level species interactions in streams in New Zealand, Maine and North Carolina. Networks include the identities of aquatic insect, algae and fish species and their trophic interactions. Excel and plain text adjacency matrices available; webs can be downloaded individually or as a group.
This network has 71 nodes and 155 edges.
Tags: Biological, Food web, Unweighted, Metadata

It is so nice how the #pandemicpond is maturing now. This is its 5th summer! Can't believe it. The bog filter has made a massive difference for the water clarity and keeping down the algae. The first pic below is from this time last year and you can see the algae clouding and sliming everything.
Two years ago I started planting some moss around rocks in the stream and it has filled in really nicely and naturally. It also served to trap seeds I think and grass and other "weeds" but I like that it just looks more and more like a normal stream. We even have a marsh marigold at the top of the stream (last pic) that we did not plant that came from one that was in the top pond and was eaten by deer. 🦌
#diy #ponds #gardening #fish #ecosystem #portalberni

Phototactic Decision-Making by Micro-Algae
Shantanu Raikwar, Adham Al-Kassem, Nir S. Gov, Adriana I. Pesci, Rapha\"el Jeanneret, Raymond E. Goldstein
https://arxiv.org/abs/2507.01684

Phototactic Decision-Making by Micro-Algae
We study how simple eukaryotic organisms make decisions in response to competing stimuli in the context of phototaxis by the unicellular alga $Chlamydomonas~reinhardtii$. While negatively phototactic cells swim directly away from a collimated light beam, when presented with two beams of adjustable intersection angle and intensities, we find that cells swim in a direction given by an intensity-weighted average of the two light propagation vectors. This geometrical law is a fixed point of an adap…

An appropriate term that might have broader usage: ‘kleptosomes’
"‘Solar-powered’ sea slugs (Elysia crispata) steal photosynthetic equipment from algae and stockpile it to use as an energy source on a rainy day. The slugs store these stolen tools, called chloroplasts, in specialized depots in their cells — dubbed ‘kleptosomes’."
from

‘Wildest thing’: solar-powered slug steals chloroplasts and stores them for emergencies
Marine creatures house contraband structures in special organelles, which the animal raids for food in times of need.

An appropriate term that might have broader usage: ‘kleptosomes’
"‘Solar-powered’ sea slugs (Elysia crispata) steal photosynthetic equipment from algae and stockpile it to use as an energy source on a rainy day. The slugs store these stolen tools, called chloroplasts, in specialized depots in their cells — dubbed ‘kleptosomes’."
from

‘Wildest thing’: solar-powered slug steals chloroplasts and stores them for emergencies
Marine creatures house contraband structures in special organelles, which the animal raids for food in times of need.

Great. Now do the same with the CBD after 6pm. https://rssfeed.media/@abcfeeds/114909787178335673

Weekend #Plankton Factoid 🦠🦐
Plankton have #parasites, just like any other organism, but in some cases, this leads to improved feeding conditions. #Daphnia zooplankton must often feed on freshwater cy…

"Antarctica’s sea ice is changing, and so is a vital part of the marine food web that lives within it"
#Antarctica #Climate #ClimateChange

Antarctica’s sea ice is changing, and so is a vital part of the marine food web that lives within it
When sea ice forms later, the communities of tiny algae that live within it change too. Detecting these early signals now could help us adapt to a changing world.

A #pandemicpond post.
The bog-barrels that I added last summer have done an absolutely incredible job at keeping the water crystal clear and almost completely algae free this summer.
Only the much warmer stream between the ponds has more algae than I really like.
I also added the bigger pump at the same time which likely helped a little but the added flow also raised the level of the top pond just above the liner in some spots. So yesterday when I topped it up, I took away the flat border stones to inspect where it was leaking. It turns out, almost everywhere!
So I added some handfuls of pebble taken from the #poolpond filter since I know there is extra there..: and stuck it under the liner to raise it an inch or two all the way around.
Here is a before and after. The first pic with the purple lilly
pads is last year with the algae that was common in the summer before the big filters. The second pic is a few weeks ago when the pond was full, clear, but overflowing, notice the water overtop the flat stones. The last two pics are today after raising the liner a little under the stones.
And a pic of the happy dual-barrel bogs (which are just small versions of the giant filter I just finished in the backyard). The marsh marigolds have not bloomed in the bog barrels. Not sure if they will this year. It is quite shady for them.
Oh and a lilly is about to bloom!The fish are also very active and happy.
#backyardproject #diy #ponds #gardening #watergarden #bloomscrolling #goldfish

fresh_webs: Freshwater stream webs
A set of 26 networks of trophic-level species interactions in streams in New Zealand, Maine and North Carolina. Networks include the identities of aquatic insect, algae and fish species and their trophic interactions. Excel and plain text adjacency matrices available; webs can be downloaded individually or as a group.
This network has 83 nodes and 335 edges.
Tags: Biological, Food web, Unweighted, Metadata

fresh_webs: Freshwater stream webs
A set of 26 networks of trophic-level species interactions in streams in New Zealand, Maine and North Carolina. Networks include the identities of aquatic insect, algae and fish species and their trophic interactions. Excel and plain text adjacency matrices available; webs can be downloaded individually or as a group.
This network has 71 nodes and 148 edges.
Tags: Biological, Food web, Unweighted, Metadata