pictures, Science

Sea Creatures of Uozu Aquarium – 3 – Glass Catfish

I recently visited the Uozu Aquarium in Toyama while searching for the Japanese Fireworms in Toyama Bay.  Here’s another sea creature I found there!

Day 3 – Glass Catfish – Kryptopterus bicirrhis

This is a small fish that lives in Borneo with a mostly-transparant body, except for its internal organs which are squished directly behind its brain.  Creepy!  I wonder how this species evolved transparency in response to environmental pressures?  Maybe it’s just harder to see for predators!

pictures, Science

Nagoya Aquarium – Fishes et cetera

Today I went to the Nagoya Aquarium.  Here’s a collection of vines of some of the fish I saw.  This aquarium was nice, but definitely didn’t have the curation quality that I found at the Uozo aquarium in Toyama.  Take a look and look for more posts in the coming days!

Note – the comments describe the species immediately below.

This is Chaetodon ulietensis or Chaetodon vagabundus. I’m not sure which.

Rhinecanthus verrucosus

A shrimp!

Ptereleotris? Don’t know.

Magochi. Platycephalus sp.

Whitegirdled goby. Pterogobius zonoleucus.

Bering wolffish. Anarhichas orientalis.

Japanese bandfish. Cepola schlegeli.

Lobster thing.

Loggerhead turtle.


Pig-nosed turtle and northern snake-necked turtle.

Bioluminescence, pictures, Science

Sea Creatures of Uozu Aquarium – 1 – Pandalid Shrimp

I recently visited the Uozu Aquarium in Toyama while searching for the Japanese Fireworms in Toyama Bay. The aquarium staff were extremely helpful and hospitable, and our laboratory group had the chance to spend three leisurely hours exploring the aquarium.  I was able to take a lot of videos, so I plan on posting one per day here with short descriptions.

Day 1 – A Pandalid Shrimp

I’m not sure what this species is, but it is a pandalid shrimp – a species that is probably edible! These shrimps are found in cold waters, and aside from being delicious, are economically important.  Most pandalid shrimp start their lives as males, then become females later in life – a life strategy not uncommon in the ocean. Most species live between 3-5 years and can lay thousands of eggs in one season. Fried or fertilized?

Many Heterocarpus shrimp (a genus of pandalids) use bioluminescence to defend themselves by ejecting a blue glowing cloud into the surrounding water when disturbed.  This blue cloud gives the shrimps a chance to escape, like a squid’s ink cloud.