Changes in growth of plaice Pleuronectes platessa L. and sole Solea solea (L.) in the North Sea

Rijnsdorp, A.D.; Beek, F.A. van

doi:10.1016/0077-7579(91)90045-3

Cited by 66 publications

(28 citation statements)

References 25 publications

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“…For North Sea plaice, such density dependence is only important on the nursery grounds for fish smaller than 25 cm (Bolle et al 2004;Rijnsdorp and Van Beek 1991); therefore, the energy acquisition of these fish depends on their total biomass B: …”

Section: Growthmentioning

confidence: 99%

Evolutionary impact assessment of the North Sea plaice fishery

Mollet

Poos

Dieckmann

et al. 2016

Can. J. Fish. Aquat. Sci.

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There is growing evidence that fishing causes evolution in life-history traits that affect the productivity of fish stocks. Here we explore the impact of fisheries-induced evolution (FIE) on the productivity of North Sea plaice (Pleuronectes platessa) using an ecogenetic, individual-based model by comparing management scenarios with and without an evolutionary response. Under status-quo management, plaice evolve towards smaller size at age, earlier maturation, and higher reproductive investment. Current reference points of maximum sustainable yield (MSY) and corresponding fishing-mortality rate (F MSY ) that ignore FIE will decrease and cannot be considered sustainable. The nature and extent of the change through FIE depend on fishing effort and selectivity. The adverse evolutionary effects can be reduced -and even reversed -by implementing a dome-shaped exploitation pattern protecting the large fish. The evolutionarily sustainable maximum yield can be obtained by combining such a dome-shaped exploitation pattern with a reduction in fishing mortality and an increase in mesh size; it is similar to the MSY that would apply if life-history traits were static. Fisheries managers will need to trade off the short-term loss in yield associated with evolutionarily informed management with the long-term loss in yield FIE causes under evolutionarily uninformed management.Résumé : Il apparaît de plus en plus clair que la pêche causerait l'évolution de caractères du cycle biologique qui ont une incidence sur la productivité des stocks de poi ssons. Nous examinons l'incidence de l'évolution induite par la pêche (EIP) sur la pr oductivité des plies (Pleuronectes platessa) de la mer du Nord à l'aide d'un modèle écogénétique basé sur l'individu, en comparant des scénarios de gestion avec et sans réaction évol utive. Dans une gestion en mode statu quo, les plies évoluent vers de plus faibles tailles selon l'âge, une maturation plus pr écoce et un investissement accru dans la reproduction. Les points de référence actuels du rendement équilibré maximal (REM) et du taux de mortalité par pêche correspondant (F REM ) qui ne tiennent pas compte de l'EIP sont appelés à diminuer et ne peuvent être considérés comme durables. La nature et l'ampleur des changements découlant de l'EIP dépendent de l'effort de pêche et de sa sélectivité. Les effets a dverses sur l'évolution peuvent être réduits, voire inversés, en appliquant une courbe d'exploitation en forme de dôme, qui protège les poissons de grande taille. Le REM durable au vu de l'évolution peut être obtenu en combinant une telle courbe d'exploitation à une réduction de la mortalité par pêche et une augmentation de la taille des mailles des filets; ce rendement est semblable au rendement équil ibré maximal qui s'appliquerait si les caractères du cycle biologique étaient statiques. Les gestionnaires des pêches devront soupeser les conséquences relatives de la réduction du rendement à court terme associée à une ge stion tenant compte de l'évolution et de la réduction du rendemen...

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Section: Growthmentioning

confidence: 99%

Evolutionary impact assessment of the North Sea plaice fishery

Mollet

Poos

Dieckmann

et al. 2016

Can. J. Fish. Aquat. Sci.

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“…Competitive biomass, i.e. the biomass with which an individual fish has to compete for resources, was estimated per age group from virtual population analysis stock numbers and weights (ICES 2006) and indices of mean crowding following Rijnsdorp & Van Beek (1991).…”

Section: Moving Time Windowmentioning

confidence: 99%

“…Since fishing typically is accompanied by a decrease in stock biomass, it may weaken density-dependent effects and cause a change in the onset of maturity simply through its effect on growth rate (Law 2000). For sole, there is evidence for densitymediated compensatory growth, although other factors such as temperature and changes in food availability might also play a role (Rijnsdorp & Van Beek 1991).…”

Section: Introductionmentioning

confidence: 99%

Fisheries-induced evolutionary changes in maturation reaction norms in North Sea sole Solea solea

Mollet

Kraak²,

Rijnsdorp³

2007

Mar. Ecol. Prog. Ser.

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Age and size at maturation decreased in several commercially exploited fish stocks, which, according to life history theory, may be due to fisheries-induced evolutionary change. However, the observed changes may also represent a plastic response to environmental variability. To disentangle phenotypic plasticity from evolutionary change, the probabilistic reaction norm approach was applied to 43 cohorts (1960 to 2002) of female sole Solea solea from market samples. The reaction norm for age and size at first maturation has significantly shifted towards younger age and smaller size. Size at 50% probability of maturation at Age 3 decreased from 28.6 cm (251 g) to 24.6 cm (128 g). This change was even stronger when condition was included as a third dimension in the reaction norm estimation. The influence of alternative factors was tested on the population level by regression of reaction norm midpoints on annual estimates of condition, temperature and competitive biomass. Although effects of temperature and competitive biomass were significant, the variation in the midpoints was best explained by the decreasing time trend. Therefore, the results provide strong evidence for a fisheries-induced evolutionary change in the onset of sexual maturity.

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“…The international Wadden Sea and the bordering coastal zone is the most important nursery area for North Sea plaice (Zijlstra, 1972;Rijnsdorp & van Beek, 1991). Conditions provided by and experienced within the nursery are considered to be important for plaice recruitment with a potential bottleneck effect on populations' life cycle (van der Veer, 1986;Bergman et al, 1988;.…”

Section: Nursery Capacity Of the Wadden Seamentioning

confidence: 99%

“…It was established that plaice settlement is mainly restricted to tidal flat areas (Zijlstra et al, 1982;van der Veer & Bergman, 1986) and that 0-group plaice remain in this primary nursery habitat until autumn, before moving to deeper waters offshore as suggested by increasing densities in coastal waters (> 3 m depth) (Zijlstra et al, 1982;van der Veer et al, 1990). Juvenile plaice return the next two years in spring (respectively as I-and II-group), and leave the area altogether at the end of their third year of life (Kuipers, 1977;Rijnsdorp & van Beek, 1991) joining the adult population in the North Sea.…”

Section: Introductionmentioning

confidence: 99%

Shifts in nursery habitat utilization by 0-group plaice in the western Dutch Wadden Sea

Freitas

Witte

Tulp

et al. 2016

Journal of Sea Research

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showed that the utilization of the western Wadden Sea has greatly changed, with changing patterns of depth distribution of the 0-group. Settlement of 0-group plaice still occurred in the intertidal, however, shortly thereafter, they moved to deeper waters. Such shift in habitat use did not seem to have affected growth rates. Overall, it seems that the western Wadden Sea can still support young-of-the-year plaice population and in spite of changes in habitat use, the functional importance of the area for this group has not been affected.

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Changes in growth of plaice Pleuronectes platessa L. and sole Solea solea (L.) in the North Sea

Cited by 66 publications

References 25 publications

Evolutionary impact assessment of the North Sea plaice fishery

Evolutionary impact assessment of the North Sea plaice fishery

Fisheries-induced evolutionary changes in maturation reaction norms in North Sea sole Solea solea

Shifts in nursery habitat utilization by 0-group plaice in the western Dutch Wadden Sea

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