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Under the ferry dock. Rusty ladder, creosoted pilings, and stacks of barnacles. New blog post: https://wanderinweeta.blogspot.com/2025/06/habitat.html
#VancouverIsland #Invertebrates #MarineLife #MarineInvertebrates #Nature

A view from underneath a dock. Wooden pilings, black with creosote, green with algae, sprinkled with barnacles. Between the pilings, a ladder hangs down; a metal chain with rusty iron rungs. The lower rungs and chain are loaded with barnacles and a bit of green sea lettuce. A board on an angle also carries its load of barnacles and mussels. The water beneath reflects the surrounding colours: green, black, red, and silver.

Under the ferry dock. Rusty ladder, creosoted pilings, and stacks of barnacles. New blog post: https://wanderinweeta.blogspot.com/2025/06/habitat.html
#VancouverIsland #Invertebrates #MarineLife #MarineInvertebrates #Nature

Kelp crab and Sargassum. New blog post: https://wanderinweeta.blogspot.com/2025/05/kelp-crab-with-matching-seaweed.html #VancouverIsland #Crabs #Invertebrates #IntertidalInvertebrates #MarineInvertebrates #Seaweed #InvasiveSpecies

A kelp crab. He's the colour of brown algaes, such as bull kelp. The carapace is shield-shaped, the legs and pincers are long and thin. The crab is just arriving at a clump of Sargassum seaweed, where he will hide; the colours match his perfectly. The seaweed has long strands with tiny balls scattered throughout; they're filled with gas and serve as floats.

Feather duster tubeworm catching the light under a dock. New blog post: https://wanderinweeta.blogspot.com/2025/04/where-sun-shines.html #VancouverIsland #Invertebrates #MarineInvertebrates #InverteFest

Underwater photo. A tubeworm spreads and waves his many bright red tentacles from the end of his rubbery tube. The tube is dark brown, and connects to the underside of a blue float holding, as well, a few mussels. There's a yellow blob on the tube, just beneath the waving tentacles, probably a sponge. The water is a deep green, slightly mottled with plankton and dust.

Sand dollar community, half hidden under the sand. Dozens of sand dollars, overlapping each other. New blog post: https://wanderinweeta.blogspot.com/.../sorry-about-that.html #VancouverIsland #Invertebrates #MarineInvertebrates #IntertidalInvertebrates #Intertidal #Nature

Sand on a beach, all covered with lumps. Every lump conceals a sand dollar or two. Some circular shapes are visible.

Grainy hand hermit, staying safe. New blog post: https://wanderinweeta.blogspot.com/2025/03/when-in-doubt-hide.html #VancouverIsland #HermitCrabs #Invertebrates #IntertidalInvertebrates #MarineInvertebrates #Nature

A hermit crab inside a brownish whelk shell, being held in my fingers, with the opening facing the camera. The hermit has retreated inside the shell, and all that is visible is the large pincer, white with orange specks.

Jellyfish …

#Jellyfish #MarineBiology #Liquid #MarineInvertebrates #Underwater #Cnidaria #Bioluminescence #Aquarium #Science #Fish

Lion's mane jelly, Oyster Bay. New blog post: https://wanderinweeta.blogspot.com/2024/10/jellies-red-and-white.html #VancouverIsland #Jellyfish #MarineInvertebrates #Invertebrates

In a few centimetres of water at the edge of a beach, a lion's mane jelly has come in with the tide. It is about 30 centimetres across, a deep, glossy red with purple lights. A series of orange semi-circles, facing out, line the outer edge. A lighter red area in the centre is where the tentacles would be hanging down underneath if the jelly were in deep water. They can be seen, as a blob, through the translucent jelly.

Randomly selected image:
EMC_Phase1:Clipart/IFF/Animals/Water/Trop.Fish/Tropical09.iff #MarineInvertebrates #TerrestrialAnimal #Reptile #Drawing #Tail #Illustration #Invertebrate #Slope #Amphibian #Fish

Marine invertebrates Terrestrial animal Reptile Drawing Tail Illustration Invertebrate Slope Amphibian Fish

Randomly selected image:
EMC_Phase3:images/waterlife/waterlife.256/sanddiver.256 #Water #Underwater #TerrestrialPlant #MarineBiology #Fin #Fish #ElectricBlue #Tail #MarineInvertebrates #Invertebrate

Water Underwater Terrestrial plant Marine biology Fin Fish Electric blue Tail Marine invertebrates Invertebrate

This is Lineus longissimus, a nemertean known as the bootlace worm. It's one of the longest animals in the world. A specimen caught in Scotland after a storm is thought to have been almost 60 meters long. Although this might be an exceptional case, there's evidence that these worms can reach about 30 meters (the length of a blue whale).

More here: https://brunovellutini.com/posts/lineus-longissimus-longest-animal/

Source image: https://commons.wikimedia.org/wiki/File:Nemertean_Lineus_longissimus.tif

#Nemertea #Zoology #MarineInvertebrates #Worm #Animals #Biodiversity

Macro photograph of an adult specimen of the bootlace worm, Lineus longissimus. The background is white. The worm is dark brown with slightly fainter longitudinal stripes. On the left side of the image is the head with whitish tissue at its tip, and a more reddish color at its base (that's where the brain is). The body is entangled like a bootlace.

Iceland scallop (Chlamys islandica)
Day 27 of #invertober #invertober2023
Icelandic scallops have separate sexes from birth, whereas most scallop species are hermaphrodites. Reproduction is by broadcast spawning in June and July. After 6-10 weeks of floating as planktonic life, the larvae settle to hard sand and gravel surfaces. The species is extremely temperature sensitive, with both high and low temperature limits. As the sea surface and bottom temperatures change, the stock densities and distribution of the scallop change as well.
#bivalve #scallop #sealife #marinebiology #invertebrates #marineinvertebrates

Horned sea star (Protoreaster nodosus)
Day 25 of #invertober #invertober2023
The horned sea star is big and colorful and found in the warm, shallow waters of the Indo-Pacific region. It can range in colors from orange to tan to even green. Sea Stars have remarkable regenerative powers, when attacked and damaged by predators they are able to grow new arms. They usually have five arms but have been found with 4 or 6 arms, this may be because more than one arm has been damaged at one time!
#seastar #marinebiology #marineinvertebrates #chocolatechipseastar #starfish #sealife #invertebrates

White-spotted jellyfish (Phyllorhiza puntata)
Day 19 of #invertober #invertober2023
White-spotted jellies have a voracious appetite and consume the larvae and eggs of fishes and crustaceans. This not only impacts an ecosystem’s reproductive capacity; it also reduces the food available to other species, as a single jelly can filter up to 13,200 gallons of water a day. Native to the western Pacific, scientists are concerned that the ecosystems where P. punctata has been introduced are simply not equipped to withstand the species’ numbers.
#jellyfish #jellies #invertebrates #marineinvertebrates #marinelife #underthesea #seacreatures #marinebiology

Fuchsia flatworm (Pseudoceros ferrugineus)
Day 16 of #invertober #invertober2023
The Fuchsia flatworm's striking appearance, characterized by its bright fuchsia, red, and yellow body colors, not only serves as camouflage against coral backgrounds but also warns potential predators of its distastefulness.
#fuchsiaflatworm #flatworm #platyhelminthes #marineinvertebrates

@blog I write about biology, imaging, coding, music, and other things I find interesting to share.

Here are some keywords from the latest posts:

#Science #Biology #Outreach #Cifonauta #MarineInvertebrates #Flies #EvoDevo #DevBio #Wnt #Embryo #Larva #ImageJ #ImageProcessing #SciArt

Blue glaucus (Glaucus atlanticus)
Day 14 of #invertober #invertober2023
They only grow to about 3cm in size. They absorb toxic chemicals from their prey (Portuguese man o' war) by eating the nematocyst, which is a stinger cell where the poison is stored. So while they’re pretty to look at, don’t pick them up!
#seaslug #molluscs #marinebiology #marineinvertebrates

Eelgrass isopod (Pentidotea resecata)
Day 12 of #invertober #invertober2023
They are found along the western coast of North America in beds of kelp and eelgrass. They tend to take on the color of the plants they eat, so some are greenish, some reddish, and some brownish.
#crustacean #marinebiology #marineinvertebrates #invertebrates