| Land | United States (contiguous states) | Ecosysteem | |
| Lokaliteit | Penobscot Bay, Maine | Diepte | |
| Geïntroduceerd | Year Intro. | ||
| Levensfase | larvae | unsexed | |
| Quantitative | 0 | Eenheid | numbers/m3 |
| Semi Quantitative | 0 | Eenheid | numbers/m3 |
| Qualitative | absent | ||
| Jaar | 1998 - 1998 | Periode | 1975-2000 |
| Datum | 18/03/98 - 30/04/98 | Record Type | field sample |
| Record Type | field sample | ||
| Seasonal | not specified | Methode | swept area |
| Opmerkingen | Four one- or two-day cruises were conducted twice a week. 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. | ||