Thousands of Blue button jellyfish washed ashore Okinawa

Thousands of Blue button jellyfish ( Porpita porpita ) washed ashore on a local beach today.  These beautiful animals have stinging cells called nematocysts.  They can cause skin irritation but generally are not a threat.

Blue button  jellyfish

Blue button jellyfish

Blue button  jellyfish

Blue button jellyfish 

Washed ashore

Washed ashore

Button Jellyfish

Button Jellyfish -Gobe 700

Button Jellyfish

Button Jellyfish – Gobe 700

I collected a few specimens to photograph in the studio. I was curious to see if this animal would fluoresce under blue light. I used my underwater setup as my lighting studio.  I took a few photos using the Light & Motion Nightsea Blue light.

Studio setup

DTM -Studio setup

The round disc fluoresced bright orange under blue light.

fluorescence

fluorescence

Have a great day!

 

 

Meet Your Neighbours project – Okinawa, Japan

Founded in 2009, Meet Your Neighbours is a worldwide photographic initiative created by Niall Benvie and Clay Bolt. The project is dedicated to reconnecting people with the wildlife on their own doorsteps and enriching their lives in the process. These creatures and plants are vital to people: they represent the first, and for some, the only contact with wild nature we have. Yet too often they are overlooked, undervalued.

There are seventy-five worldwide contributors to this powerful project. I am currently  the Japan contributor to this project. All images are used for conservation awareness and educational purposes.  Below are some of my favorite images.

12051921826_3aafff45a9_b

Okinawan green tree frog

11695001605_f32e144de8_b

Percnon planissimum – crab

Cherry blossom  -Mt Yaedake

Cherry blossom -Mt Yaedake

Crabs with beach trash homes

Crabs with beach trash homes

Kuroiwa's Ground Gecko -MYN

Kuroiwa’s Ground Gecko -MYN

Porcelain crab ( Petrolisthes hastatus ) -Okinawa

Porcelain crab ( Petrolisthes hastatus ) -Okinawa

Ryukyu odd-tooth snake ( Dinodon semicarinatum )

Ryukyu odd-tooth snake ( Dinodon semicarinatum )

Scopimera ryukyuensis - Ryukyu Islands

Scopimera ryukyuensis – Ryukyu Islands

17022692518_99dd5e7837_b

Fern – Ryukyu Islands

 

Blueberry hermit crabs (Coenobita purpureus)

Blueberry hermit crabs (Coenobita purpureus)

Gray faced buzzard eagle

Gray faced buzzard eagle

Princess habu -MYN technique

Princess habu -MYN technique

Charybdis japonica -Yagaji Island

Charybdis japonica -Yagaji Island

American bullfrog - Izena Island

American bullfrog – Izena Island

Chinese cowrie

Chinese cowrie

Okinawan Habu- MYN field studio technique

Okinawan Habu- MYN field studio technique

Okinawan mud lobster

Okinawan mud lobster

Sesarmops intermedius

Sesarmops intermedius

Air breathing marine slug

Air breathing marine slug

Unidentified earthworm -  MYN and under Blue light Kume Island

Unidentified earthworm – MYN and under Blue light Kume Island

Geograpsus grayi

Geograpsus grayi

Anderson's crocodile newt

Anderson’s crocodile newt

Blueberry hermit crabs (Coenobita purpureus)

Blueberry hermit crabs (Coenobita purpureus)

Have a great day !

Fluoro fingerprinting by Shawn Miller

On February 16th 2015, I went out reef walking at night during low tide. I brought my Light and Motion Nightsea blue light in search of marine life fluorescence. I stumbled upon an interesting find in the world of science. I call it Fluoro fingerprinting.

I flipped over a rock, a small sea cucumber fell off and began to fluoresce under blue light. I found another sea cucumber and photographed it using the blue light and yellow excitation filter but it did not fluoresce.

Holothuria (Platyperona) difficilis under blue light

Holothuria (Platyperona) difficilis under blue light

I gently touched it with my finger and it fluoresced bright green, leaving the print of my finger on the surface of the sea cucumber.

Fluoro fingerprinting. Okinawa-Japan

Fluoro fingerprinting. Okinawa-Japan

I checked my finger and noticed it fluoresced light green under blue light.

fluoro fingerprinting

Fluoro fingerprinting

I was excited about this find and posted it Flickr for some Identification help and explanation. Curt Fieldler emailed the photograph to Dr Alexander Kerr from the University Of Guam Marine lab and he was kind enough to assist.

 Dr Kerr stated that the species is known to have green pigment that I have seen in other Sea cucumbers. As far as the fingerprint, It seems to indicate that touching the surface of the Sea cucumber exposes the underlying carotenoid, perhaps by mobilizing the the melanin pigments. So I think you have made an interesting find. 

The next step was to photograph Holothuria (Platyperona) difficilis in a studio aquarium using the Meet your neighbours isolation technique.  I wanted to show the animal stretched out displaying  the tube feet and feathery feeding tentacles.  

Holothuria (Platyperona) difficilis  -MYN

Holothuria (Platyperona) difficilis -MYN

The last step was to photograph Holothuria (Platyperona) difficilis in its natural environment during the daytime.

Holothuria (Platyperona) difficilis

Holothuria (Platyperona) difficilis in natural environment

Learn more about capturing fluorescence http://www.nightsea.com/

Learn more about the lights used http://www.lightandmotion.com/

Learn more about Meet your Neighbours Project http://meetyourneighbours.net/

Have a great day!