Population-Dynamics And Production Of Euphausiids .2. Thysanoessa-Inermis And Thysanoessa-Raschi In The North-Sea And American Coastal Waters

Lindley, JA 1980 Population-Dynamics And Production Of Euphausiids .2. Thysanoessa-Inermis And Thysanoessa-Raschi In The North-Sea And American Coastal Waters. Marine Biology, 59 (4). 225 - 233. https://doi.org/10.1007/BF00404745

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Abstract/Summary

Results from the Continuous Plankton Recorder (CPR) survey for 1966 and 1967 are used to describe seasonal changes in abundance, size and aspects of the population structure of Thysanoessa inermis (Krøyer) and T. raschi (M. Sars) at a depth of 10 m in the North Sea and in American coastal waters from the Grand Banks to the Gulf of Maine. Production and dry weight were estimated from these data. Two year-groups were usually present in the breeding population, the proportion surviving into a second year being higher in American waters than in the North Sea. Annual production for each species was within the range 0.69 to 4.66 mg m-3 and the ratio between production and biomass (P:B) was between 1.3 and 4.2; values outside these ranges were obtained only for American coastal waters in 1967, when the frequency of sampling was low.

Item Type:	Publication - Article
Divisions:	Plymouth Marine Laboratory > Other (PML)
Depositing User:	EPrints Services
Date made live:	11 Feb 2014 15:54
Last Modified:	06 Jun 2017 16:03
URI:	https://plymsea.ac.uk/id/eprint/2794

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