Land | Alaska | Ekosystem | East Bering Sea |
Observationsplats | Bering Sea Shelf | Depth | |
Införda | Year Intro. | ||
Utvecklingsstadium | not specified | unsexed | |
Quantitative | 0.003 | Unit | kg/hectare |
Semi Quantitative | <100 | Unit | kg/hectare |
Qualitative | |||
År | 1990 - 1990 | Period | 1975-2000 |
Datum | 01/05/90 - 31/07/90 | Record Type | survey |
Record Type | survey | ||
Seasonal | Metod | swept area | |
Anmärkningar | Survey dates estimated, conducted May-July 1990. Survey was conducted via 30 minute bottom trawl at each designated sampling site. |