Abundance Information for Clupea harengus
Main Ref.
Country Germany (Federal Republic of) Ecosystem Baltic Sea
Locality Western Baltic Sea (ICES Subdivision 22 and 24) Depth
Introduced Year Intro.
Life Stage juvenile/recruits unsexed
Quantitative 0.09 Unit numbers/m^2
Semi Quantitative <100 Unit numbers/m^2
Qualitative rare
Year 2002 - 2002 Period 2001-present
Date 01/04/02 - 31/05/02 Record Type field sample
Record Type field sample
Seasonal not specified Method volumetric
Remarks Life stages of the species collected (fish larvae and juveniles). Fish larvae were caught with a bongo net (60 cm in diameter, with 0.5 mm mesh size on the outer net and 0.335 mm on the inner net). At each of the 57 stations, 2 oblique hauls at a speed of 3 knots were carried out up to 2 m above the bottom. The samples were fixed on board in 4% formaldehyde. 'Flow-through counter' measurements made possible the calculation of fish volumes.
(e.g. 9948)
( e.g. cephalopods )
Entered by Casal, Christine Marie V.
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cfm script by eagbayani, 10.05.99, php script by rolavides, 2/4/2008 ,  last modified by sortiz, 09/08/2017