| País | United States (contiguous states) | Ecosistema | |
| Localidad | Penobscot Bay, Maine | Depth | |
| Introducida | Year Intro. | ||
| Estadio de desarrollo | larvae | unsexed | |
| Quantitative | 0.00002 | Unit | numbers/m3 |
| Semi Quantitative | <100 | Unit | numbers/m3 |
| Qualitative | rare | ||
| Año | 1997 - 1997 | Período | 1975-2000 |
| Fecha | 04/04/97 - 25/06/97 | Record Type | field sample |
| Record Type | field sample | ||
| Seasonal | not specified | Método | swept area |
| Observaciones | Seven two- to three-day cruises were conducted twice a week to coincide with spring and summer spawning times for many fishes. A 1.0 m 333-micron mesh plankton net equipped with a General Oceanics flowmeter during daylight hours was utilized. It was hauled for 20 minutes in stepped oblique fashion at the surface, at 10 m, and at 20 m or to within 5 m of the bottom. | ||