Environment : Activities for reducing our own environmental burdens Pictorial Book of Creatures in Hamamatsu Business Office

Hamamatsu Business Office opened a biotope in the green area of the premises in FY2012 and are maintaining it. In this page, we introduce creatures watched in the biotope.

External view of the biotope of Hamamatsu Business Office.

Creatures watched in the biotope

Fish, Shellfishes

Tanakia lanceolata

Shizuoka Prefecture RL2017 endangered IA (CR)

Within Shizuoka Prefecture, inhabitation is confirmed only in the Miyakoda River valley. The Tanakia lanceolata inhabiting in the neighboring Miyakoda River system is preserved in the stream and pond outside the inhabiting area.

Pronodularia japanensis

Shizuoka Prefecture RL2017 endangered IA (CR)

Bivalve which will be spawning mother shell of Tanakia lanceolata. The Pronodularia japanensis inhabiting in the neighboring Miyakoda River system is preserved in the stream outside the inhabiting area.


Sparganium fallax Graebn.

Shizuoka Prefecture RL2017 endangered II (VU)

Schoenoplectus tabernaemontani (C.C.Gmel.) Palla

Tephroseris pierotii

Broussonetia monoica Hance

Lysimachia clethroides Duby

Prunella vulgaris L. subsp. asiatica (Nakai) H.Hara

Patrinia scabiosifolia Fisch. ex Trevir.

Rhododendron kaempferi Planch. var. kaempferi

Potamogeton fryeri A.Benn.

Quercus serrata Murray

Raised seeds collected in the neighborhood to young trees and then planted.

Ligustrum japonicum Thunb.

Gentiana thunbergii (G.Don) Griseb. var. thunbergii

Viburnum erosum Thunb.


Cercion calamorum

Dragonflies seen from spring to autumn.

Ceriagrion melanurum

Dragonflies seen from spring to autumn. Many were seen around the pond.

Hydaticus grammicus

Appasus japonicus

Orthetrum albistylum speciosum

Anax parthenope julius

Amphibian species

Pelophylax nigromaculatus

Shizuoka Prefecture RL2017 semi-endangered (NT)

Rana limnocharis


Sparganium fallax Graebn.

Set up a cliff site to be nesting site within the biotope. Hoping it to be used.

Nycticorax nycticorax (young one)

Columba livia

Feathers were found at the lawn open space. This seems to be a meal trace of Accipiter gentilis (Shizuoka Prefecture RL2017 semi-endangered (NT)).

The photos are for illustration purpose only.