‘Hard’ data for matrix modelling of Laminaria digitata (Laminariales, Phaeophyta) populations.

Chapman, Anthony R. O. (1993) ‘Hard’ data for matrix modelling of Laminaria digitata (Laminariales, Phaeophyta) populations. Hydrobiologia, 260/261 . pp. 263-267. DOI 10.1007/978-94-011-1998-6_31.

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Abstract

The objective of the study was to produce a size-based matrix model of a Laminaria digitata (L.) Lamour. population. ‘Hard’ data for insertion in the matrix were collected in a 9 year cohort analysis of size and age specific survival and fertility for a stand in south west Nova Scotia, Canada. The product of the square matrix containing these values and a column vector containing the densities of size classes was used to project the size class structure one year later. The projected estimates were found to fit empirical estimates with some confidence. In contrast, an age-based fertility life table wrongly predicted a population declining in density by 45% per year. The study supports, in theory, the use of size-based matrix models for management of harvested stands. In reality, the amount of work required to obtain ‘hard’ data and the site specific nature of the projections may preclude the use of such an approach to broad scale management.

Document Type: Article
Keywords: Laminaria digitata; matrix modelling; demography; population biology
Research affiliation: OceanRep > Institute for Marine Science Kiel
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1007/978-94-011-1998-6_31
ISSN: 0018-8158
Date Deposited: 07 Mar 2018 13:36
Last Modified: 07 Mar 2018 13:36
URI: http://oceanrep.geomar.de/id/eprint/42185

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