Abundance Information for Clupea harengus
Main Ref.
देश United States (contiguous states) परितंत्र
स्थान Penobscot Bay, Maine Depth
प्रस्तुत किया Year Intro.
जीवन अवस्था larvae unsexed
Quantitative 0.00009 Unit numbers/m3
Semi Quantitative <100 Unit numbers/m3
Qualitative rare
वर्ष 1997 - 1997 Period 1975-2000
तारीख 04/04/97 - 25/06/97 Record Type field sample
Record Type field sample
Seasonal not specified विधि swept area
Remarks 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.
(उदाहरणार्थ 9948)
( उदाहरणार्थ cephalopods )
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