Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 431080
Title Shifts in the timing of spawning in sole linked to warming sea temperatures
Author(s) Fincham, J.I.; Rijnsdorp, A.D.; Engelhard, G.H.
Source Journal of Sea Research 75 (2013). - ISSN 1385-1101 - p. 69 - 76.
DOI http://dx.doi.org/10.1016/j.seares.2012.07.004
Department(s) IMARES Visserij
Aquaculture and Fisheries
WIAS
Publication type Refereed Article in a scientific journal
Publication year 2013
Keyword(s) cod gadus-morhua - plaice pleuronectes-platessa - maturation reaction norms - north-sea - climate-change - fish populations - maturity ogives - marine - growth - fisheries
Abstract Phenotypic traits such as peak spawning time may vary within and differ between populations in relation to environmental factors, such as temperature. Sole (Solea solea) is a valuable, commercially exploited species that spawns in late winter or spring. The date of peak spawning was estimated for each year for seven stocks from monthly fish samples collected from commercial fisheries since 1970. Four out of seven stocks showed a significant long-term trend towards earlier spawning (Irish Sea, east-central North Sea, southern North Sea, eastern English Channel) at a rate of 1.5 weeks per decade. The other three stocks (Bristol Channel, western English Channel and western-central North Sea) failed to show a relationship, but the available time series were limited for these stocks (<10 years). Sea surface temperature during winter significantly affected the date of peak spawning, although the effect differed between stocks. The implications of the effect of winter temperature on the timing of spawning for the population dynamics are discussed.
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