Ryukyu Brown Frog – Amphibians of Okinawa by Shawn Miller

The Ryukyu Brown frog (Rana ulma) is found throughout the Ryukyu Islands. It is listed as an endangered species on the IUCN list of threatened species. Some of the most beautiful frogs are found on Kume Island.

  • Scientific name: Rana ulma – Synonym Babina okinavana
  • Common name: Ryukyu Brown Frog
  • Distribution: Ryukyu Islands
  • Habitat: Forests, mountain slopes, drainage ditches, and farm fields.
  • Diet: Insects
  • Average size: 45mm-65mm
  • Color: brownThe Ryukyu Brown Frog is found in northern Okinawa. The Yanbaru forest is a wildlife protected area.
Wildlife protection area -Yanbaru forest

Wildlife protection area -Yanbaru forest © Shawn Miller

They blend in very well with the leaf litter, rocks, and the surrounding grass.

Rana ulma Ryukyu brown frog

(Rana ulma) Ryukyu brown frog © Shawn Miller

Ryukyu Brown frog (Rana ulma)

Ryukyu Brown frog (Rana ulma) © Shawn Miller

Ryukyu Brown frog (Rana ulma) © Shawn Miller

Ryukyu Brown frog (Rana ulma) © Shawn Miller

Amami brown frog (Rana Kobai)

Rana ulma Tokuno Island

Rana kobi- Tokuno Island © Shawn Miller

Mating season is during the winter months.

Ryukyu Brown frog mating

Ryukyu Brown frog mating -Kume, Island © Shawn Miller

A wide-angle perspective of the small brown frog.

Rana ulma - Wide angle macro

Rana ulma – Wide angle macro © Shawn Miller

Pay attention to crossing wildlife. Frogs are often found on the road searching for insects

Bright orange Ran ulma

Bright Orange Rana ulma © Shawn Miller

Rana ulma - crossing the road

Rana ulma – crossing the road © Shawn Miller

People often ask me what is the purpose of conservation photography? Having the ability to affect some form of positive change in the environment and make a global difference with the photographs. Hopefully, the images will inspire people to care more about nature and make a positive difference in the environment.

 My Mission: To Document and Preserve the Wildlife of the Ryukyu Islands

This site is also designed to help people identify the beautiful animals of Okinawa, basically  to serve as an online nature reference guide. If you would like to make a contribution to support my mission, please click on the donation link  paypal.me/maketheswitch4nature

Your donations will help worldwide conservation initiatives as well as bring solutions to the worldwide pollution issues on our beautiful shorelines.  Thank you for your support.  Shawn M Miller.

Anemone-fish of the Ryukyu Islands by Shawn Miller

Have you ever wondered how many species of anemonefish are found in the beautiful waters of Okinawa?  There are six anemonefishes found here. Most are found in shallow water and all live in a venomous sea anemone for protection. Their biggest threats are over-collecting.

(1) Nemo – Is known as the false clown anemonefish (Amphiprion ocellaris). In my opinion is the most beautiful anemone fish of the Ryukyu Islands.

 false clownfish  (Amphiprion ocellaris)

false clown anemonefish (Amphiprion ocellaris) © Shawn Miller

The false clownfish (Amphiprion ocellaris) photographed in black & white.

false clown anemonefish (Amphiprion ocellaris)

false clown anemonefish (Amphiprion ocellaris) © Shawn Miller

(2) The Tomato anemonefish (Amphiprion frenatus) is the most abundant anemonefish found here. The juveniles sometimes have multiple white stripes.

 Tomato anemonefish (Amphiprion frenatus)

Tomato anemonefish (Amphiprion frenatus) © Shawn Miller

Sometimes the Tomato anemonefish (Amphiprion frenatus)  can be found in large colonies with over sixty fish living together in multiple sea anemones.

 Tomato anemonefish (Amphiprion frenatus)

Tomato anemonefish colony © Shawn Miller

The Tomato anemonefish (Amphiprion frenatus) in black & white.

© Shawn Miller

Tomato anemonefish (Amphiprion frenatus) © Shawn Miller

 (3) Clark’s anemonefish ( Amphiprion clarkii ) is fairly common as well. A tough anemonefish for sure! 

Clark's anemonefish ( Amphiprion clarkii )

Clark’s anemonefish ( Amphiprion clarkii ) © Shawn Miller

The juveniles are often found in small nursery anemones. Is it possible these baby anemone fish see the fluorescence of the anemone?  I have always wondered how the hatchlings find a small anemone far away for a reef.

Clark's anemonefish ( Amphiprion clarkii ) and fluorescence

Clark’s anemonefish ( Amphiprion clarkii ) and fluorescence © Shawn Miller

 For some strange reason, the Clarks anemonefish (Amphiprion clarkii) turns dark black when living in the giant carpet sea anemone.

black Clark's anemonefish ( Amphiprion clarkii )

black Clark’s anemonefish ( Amphiprion clarkii ) © Shawn Miller

(4) The orange anemonefish (Amphiprion sandaracinos) is uncommon here. They all have a white dorsal stripe running from the lip to the tail.

Orange anemonefish (Amphiprion sandaracinos)

Orange anemonefish (Amphiprion sandaracinos) © Shawn Miller

5) The saddle anemonefish (Amphiprion polymnus) is scarce here. They are usually found living in a large carpet anemone around white fine sand.

saddle anemonefish (Amphiprion polymnus)

saddle anemonefish (Amphiprion polymnus) © Shawn Miller

(6) The pink anemonefish (Amphiprion perideraion) is fairly common here. They all have a white dorsal stripe running from the eyes to the tail and a narrow white head bar.

pink anemonefish (Amphiprion perideraion)

pink anemonefish (Amphiprion perideraion) © Shawn Miller

The pink anemonefish (Amphiprion perideraion) in black & white.

pink anemonefish (Amphiprion perideraion)

pink anemonefish (Amphiprion perideraion) © Shawn Miller

The three-spotted damselfish (Dascyllus trimaculatus) seeks shelter in sea anemones at the juvenile stage for protection. It leaves the anemone when its ready and never comes back.

The three-spotted damselfish (Dascyllus trimaculatus) seek shelter in sea anemones at the juvenile stage for protection.

The three-spotted damselfish (Dascyllus trimaculatus) © Shawn Miller

Okinawa offers some of the best shore diving in the world.  What are you waiting for?

Please consider making a small donation to support my mission. Have a great day!

https://www.paypal.com/donate/?hosted_button_id=882UZYPUEX7KE

Patterns, textures and colors ! Underwater Macro Photography by Shawn Miller

Okinawa offers some of the best Scuba-Diving in the world. I really enjoy the Art of Underwater Macro Photography.  Macro subjects can always be found, it just takes some imagination and good framing to create beautiful underwater abstracts.  Pattern’s, textures and vibrant colors generally stand out in underwater photography.

Equipment used 

  • Camera: Canon 70d with Canon 100mm&60mm
  • Housing: Ikelite underwater housing
  • Stobes: Ikelite DS160 & DS 200
  • Modeling lights: Light&Motion Gobe 800, Sola 3800 and Sola 1200
  • Specialized lights: Light&Motion Sola Nightsea

All images were taken in the beautiful waters of the Ryukyu Islands. Underwater Photography by Shawn Miller.

Cushion starfish (Culcita novaeguineae) 100mm

Cushion starfish (Culcita novaeguineae) © Shawn Miller

Coral (Favia sp)

Coral (Favia sp) © Shawn Miller

Deep water coral (Tubastrea micrantha)

Deep water coral (Tubastrea micrantha) © Shawn Miller

Pedum spondyloidum- coral scallop

Pedum spondyloidum- coral scallop © Shawn Miller

Feather star

Feather star © Shawn Miller

Stichopus variegatus sea cucumber- 100mm

(Stichopus variegatus) sea cucumber © Shawn Miller

Sea fan (Annella mollis )

Sea fan (Annella mollis ) © Shawn Miller

Favia sp coral closeup

Favia sp coral closeup © Shawn Miller

Feather duster worm (Sabellastarte sanctijosephi)

Feather duster worm (Sabellastarte sanctijosephi) © Shawn Miller

granulated sea star (Choriaster granulatus)

granulated sea star (Choriaster granulatus) © Shawn Miller

Crocea clam (Tridacna Crocea)

Crocea clam (Tridacna Crocea) © Shawn Miller

(Pachyseris speciosa) Ringed plate coral

(Pachyseris speciosa) Ringed plate coral © Shawn Miller

Razor coral

Razor coral © Shawn Miller

striped triplefin (Helcogramma striata) on coral

Striped triplefin (Helcogramma striata) on coral © Shawn Miller

coral of okinawa

coral of okinawa © Shawn Miller

bubble coral (Plerogyra sinuosa

Bubble coral (Plerogyra sinuosa) © Shawn Miller

Dive safe and have a great day!

 

The Hallowell’s tree frog – Okinawa

The Hallowell’s tree frog ( Hyla hallowellii ) is found on Okinawa, Amami and Tokunoshima Island.

  • Scientific name: Hyla hallowellii
  • Common name: Hallowell’s tree frog
  • Distribution: Ryukyu Islands
  • Habitat: Forests, grassy areas and farm fields near water.
  • Diet: Insects
  • Average size: 30mm-40mm
  • Color: Bright green with a white belly

The Hallowell’s tree frog is fairly common but not often seen.  The beautiful frog lives high above the ground in trees making it difficult to find and photograph.

The Hallowell's tree frog

The Hallowell’s tree frog

They are easy to locate during mating season. The male produces a fairly high pitch squeak sound over and over.

The Hallowell's tree frog

The Hallowell’s tree frog -vocal sac

The Hallowell's tree frog

The Hallowell’s tree frog -mating call

The Hallowell's tree frog

The Hallowell’s tree frog

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Let’s protect the wildlife of the Ryukyu Islands.

 My Mission: To Document and Preserve the Wildlife of the Ryukyu Islands

This site is also designed to help people identify the beautiful animals of Okinawa, basically  to serve as an online nature reference guide. If you would like to make a contribution to support my mission, please click on the donation link  paypal.me/maketheswitch4nature

Your donations will help worldwide conservation initiatives as well as bring solutions to the worldwide pollution issues on our beautiful shorelines.  Thank you for your support.  Shawn M Miller.

The Art of Underwater Motion by Shawn Miller

As an underwater photographer, there will be a time when you feel all your photographs look similar and you might lose interest for a while. Creating motion in still photographs will definitely give you a new challenge and purpose. The goal is to try to show some type of motion in a still photograph. The photographs emphasize the energy, power and or speed of the subject moving. Dramatic motion images will provide depth and variety to your portfolio.

Try panning or dragging the shutter underwater 

  • Move the camera in sync with the moving subject while the shutter stays open. A slow shutter speed will be necessary to achieve this.
  • Once you understand this technique try adding flash at the end of the exposure to freeze the motion of the subject (Rear curtain sync).
  • Get creative and add a spin the camera
Striped surgeonfish on the move (Rear curtain sync)

Striped surgeonfish on the move (Rear curtain sync)

Anemone fish with a spin ( RCS )

Anemone fish with a spin ( RCS )

Dragging the shutter underwater

Sea whip - feel the flow

Sea whip – feel the flow

Ocean art ( slow shutter with a spin )

Ocean art ( slow shutter with a spin )

Angelfish on the move ( Rear curtain sync )

Angelfish on the move ( Rear curtain sync )

Striped surgeonfish and coral reef (RCS)

Striped surgeonfish and coral reef (RCS)

Indian mackerel feeding

Indian mackerel feeding

Sunset wrasse reef racing ( RSC )

Sunset wrasse reef racing ( RSC )

Ctenochaetus striatus on the move

Ctenochaetus striatus on the move

Parrotfish on the move

Coral with a spin -Ie Island

Coral with a spin -Ie Island

Masked bannerfish on the move ( RCS )

Masked bannerfish on the move ( RCS )

Motion sickness (In camera triple exposure)

Motion sickness (In camera triple exposure)

Scuba-diving with a spin (RCS)

Scuba-diving with a spin (RCS)

Hopefully these images will inspire you to try something new underwater!