Skip to main content
European Commission logo
italiano italiano
CORDIS - Risultati della ricerca dell’UE
CORDIS

The Role of Physiology in the Causes and Consequences of Fisheries-Induced Evolution

Descrizione del progetto

Uno sguardo più attento ai tratti fisiologici e alla pressione della pesca

È dimostrato che l’intensa pressione della pesca commerciale provoca l’esaurimento degli stock ittici come pure cambiamenti evolutivi nelle popolazioni di pesci. L’attuale ricerca sull’evoluzione indotta dalla pesca si è concentrata quasi esclusivamente sugli effetti del prelievo selettivo in base alle dimensioni sul potenziale riproduttivo delle popolazioni selvatiche. Tuttavia, diversi tratti oltre alle dimensioni del corpo potrebbero rendere alcuni pesci più catturabili, aumentare la mortalità dopo il rigetto e ridurre la resilienza ai cambiamenti ambientali. Il progetto PHYSFISH, finanziato dall’UE, combinerà approcci innovativi in laboratorio con una tecnologia di tracciamento acustico all’avanguardia, per esaminare se i tratti fisiologici rendono alcuni individui più catturabili dagli attrezzi da pesca commerciali, influenzano il recupero e la sopravvivenza dopo il rigetto in mare e determinano se la selezione sulla cattura genera cambiamenti nelle caratteristiche fisiologiche che riducono la resilienza della popolazione.

Obiettivo

There is increasing evidence that intense commercial fishing pressure is not only depleting fish
stocks but also causing evolutionary changes to fish populations with serious consequences for the viability
of marine fish communities. Although current research on fisheries-induced evolution (FIE) has focused
almost exclusively on the effects of size-selective harvest on reproductive potential of wild populations, there
are a range of traits besides body size which could also affect the selectivity of fishing gears but which have
not been investigated. For example, overlooked within the context of FIE is the likelihood that, within a
given species, variation in physiological traits among individuals – and especially those related to energy
balance (e.g. metabolic rate) and swimming performance (e.g. aerobic scope) – could make some fish more
catchable or more likely to suffer mortality after discard. Selection on these traits could produce major shifts
in the fundamental structure and function of fish in response to fishing pressure that are yet to be considered
but which could directly determine population resource requirements, resiliency, geographic distributions,
and responses to environmental change. This pioneering project will combine innovative approaches in the
laboratory with cutting-edge acoustic tracking technology in the field to address this gap in knowledge with
three main goals: (1) to examine whether physiological traits make some individuals more catchable by
commercial fishing gears, and whether the environment modulates such effects; (2) to investigate the extent
to which physiological traits influence recovery and survival after escape from fishing gear or discard; and
(3) to determine whether selection on catchability generates changes in physiological traits that reduce
population resiliency or erode the ability to cope with environmental change. Given that several fisheries
have not recovered despite lengthy moratoriums, there is a pressing nee

Meccanismo di finanziamento

ERC-STG - Starting Grant

Istituzione ospitante

UNIVERSITY OF GLASGOW
Contribution nette de l'UE
€ 1 499 880,00
Indirizzo
UNIVERSITY AVENUE
G12 8QQ Glasgow
Regno Unito

Mostra sulla mappa

Regione
Scotland West Central Scotland Glasgow City
Tipo di attività
Higher or Secondary Education Establishments
Collegamenti
Costo totale
€ 1 499 880,00

Beneficiari (1)