Preliminary study on the acute effects of hydrogen sulfide on Amphipoda (Lysianassoidea; Pseudorchomene sp. and Anonyx sp.) collected from deep-sea floors in the Sea of Japan.
Mar Pollut Bull
; 192: 115102, 2023 Jul.
Article
in En
| MEDLINE
| ID: mdl-37285611
ABSTRACT
To study the environmental impact of the assessment technologies for the development of shallow methane hydrate zones in the Sea of Japan, deep-sea amphipods (Pseudorchomene sp. and Anonyx sp.) were collected from a depth of approximately 1000 m and were tested for H2S toxicity. At 0.57 mg L-1 H2S, all specimens of Pseudorchomene sp. were dead after 96 h, whereas all individuals survived at 0.18 mg L-1. Moreover, Anonyx sp. had a survival rate of 17 % after 96 h at 0.24 mg L-1. A similar toxicity test was conducted with the coastal amphipod Merita sp., a detritivore, and all individuals died within 24 h at 0.15 mg L-1. These results suggested that compared with coastal detritivorous amphipods, deep-sea detritivorous amphipods, which also live near biomats with sediment H2S concentrations exceeding 10 mg L-1, showed a higher tolerance to H2S.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Amphipoda
/
Hydrogen Sulfide
Limits:
Animals
/
Humans
Country/Region as subject:
Asia
Language:
En
Journal:
Mar Pollut Bull
Year:
2023
Document type:
Article