Population-level effects of acoustic disturbance in Atlantic cod: a size-structured analysis based on energy budgets.

ABSTRACT: Anthropogenic underwater noise may negatively affect marine animals. Yet, while fishes are highly sensitive to sounds, effects of acoustic disturbances on fishes have not been extensively studied at the population level. In this study, we use a size-structured model based on energy budgets to analyse potential population-level effects of anthropogenic noise on Atlantic cod (Gadus morhua). Using the model framework, we assess the impact of four possible effect pathways of disturbance on the cod population growth rate. Through increased stress, changes in foraging and movement behaviour, and effects on the auditory system, anthropogenic noise can lead to (i) increased energy expenditure, (ii) reduced food intake, (iii) increased mortality, and (iv) reduced reproductive output. Our res

SUBMITTER: Soudijn FH 

PROVIDER: S-EPMC7329029 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature