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Selective consequences of catastrophes for growth rates in a stream-dwelling salmonid
Published the 09/02/12
Article on the marble trout in Slovenia.
This trout lives in a highly variable environment and subject to extreme catastrophic events such as severe flooding inducing a high mortality. It is predicted by the IPCC that these events should increase in frequency in the future. Models of population dynamics of individual-based are used to study how trade-offs between growth and mortality of trout depends on individual-density. After these extreme events of mass mortality, the study shows that low density of trout initially favors the more opportunistic strategies with rapid growth and early maturity. These individuals also produce more eggs than slow growing fishes.
Bibliographical reference:
Vincenzi S., Crivelli A.J., Giske J., Satterthwaite W.H., Mangel M. Selective consequences of catastrophes for growth rates in a stream-dwelling salmonid. Oecologia (2012) 168:393–404. DOI 10.1007/s00442-011-2096-8
