biology notes

Larval biscuit

My former – but not forgotten – larval crush is the Image of the Week on @BIOINTERACTIVE Larval Biscuit

Larval biscuit (Clypeaster subdepressus).

See A sea biscuit’s life for more.

biology imaging notes

Face to face with the pluteus larva

Frontal view of an echino pluteus larva. Image is composed of 122 photos in different focal planes merged into one.


notes biology imaging

Sea biscuit metamorphosis on the Node’s calendar

The sea biscuit metamorphosis image that I submitted for the Node’s intersection image competition was selected for the November calendar! You can download it here.

Sea biscuit metamorphosis.
biology imaging notes

Metamorphosis of a sea biscuit

Metamorphosis is a dramatic life-changing event for many invertebrates. It’s the intersection between two distinct lives – larval and adult. It is how a caterpillar becomes a butterfly.

The process is fascinating, specially when you have the chance to see it happening with your own eyes. You too can see it in the video A Sea Biscuit’s Life.

Recently the community website the Node from The Company of Biologists announced a thematic image competition. The images needed to be related to developmental biology and some sort of intersection.

Because intersection is essentially another word for metamorphosis, I submitted a photomicrograph of a metamorphosing sea biscuit from my master’s thesis research. It made it to the final and was a runner-up!

Metamorphosis of a sea biscuit.
Metamorphosis is a drastic (and common) event in animal life histories intersecting larval and adult stages. The photo shows a sea biscuit during metamorphosis. The apparently amorphous mass of cells exposes the duality of this transformation moment. The larval body retracted and lost its form, but larval skeleton spicules are still attached (at the top). At the bottom developing podia and spines already move and interact with the substrate as the sea biscuit learns how to walk its first steps.
biology music notes

Dream Sequence

Videoclip I made for the song Dream Sequence from Professor Kliq using the material from my master’s thesis on sea biscuits.
biology imaging notes

Skeleton of the pluteus larva

Calcareous skeleton of a pluteus larva
Skeleton of the pluteus larva of a sea biscuit. Honorable mention in the Olympus BioScapes 2008.
biology notes

A Sea Biscuit’s Life

My video about the life cycle of a sea biscuit is now online!

Also available on Vimeo. Learn more at: