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Pasific / Japan and Far East Cruises / Japan

Cruises to Hachijo Jima Island

Cruises timetable and data for this port of call

Picture by en.wikipedia.org

Hachijo Jima Island main data and map

Periplaneta japanna is a subtropical field-dwelling cockroach endemic to southern Japan. The Japanese common name means urushi cockroach, or lacquer tree cockroach.

Nymphs and adults are a dark black, and typically live under stones and pieces of wood. Their ability to bore or live in rotting wood enables their spread via ocean currents.

The species is found on several Japanese islands, distributed continuously from Japan’s southwestern Ryukyu Islands chain to the south of Kiyushu Island, and on Hachijō-jima Island.

Nymph specimens from Hachijō-jima Island and Naha, Okinawa responded to photoperiodic stimulii quite differently during laboratory-induced diapause tests. This “might be regarded as the result of divergent evolution» between the parapatric populations.

Schedule for the upcoming cruises to Hachijo Jima Island

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