Understanding climate and harvest induced changes in fish life histories

Grant number: DP190101627 | Funding period: 2019 - 2022

Completed

Abstract

This project aims to quantify the cumulative impacts of harvest and climate change across marine fishes and ecosystems. The project expects to generate new knowledge in this area by coupling the rich biological information archived in fish ear bones, with targeted multi-generation experiments and predictive modelling. Expected outcomes include fundamental insights into how human-induced environmental change affects fish growth and maturation, and a subsequent critical evaluation of the sensitivity of fisheries models to trends in these life-history traits. This should provide significant benefits to fisheries and ecosystem management, ensuring they remain productive and resilient in a time o..

View full description

Related publications (8)

Scholarly works icon

Growth portfolios buffer climate-linked environmental change in marine systems

Steven E Campana, Szymon Smolinski, Bryan A Black, John R Morrongiello, Stella J Alexandroff, Carin Andersson, Bjarte Bogstad, Paul G Butler, Come Denechaud, David C Frank, Audrey J Geffen, Jane Aanestad Godiksen, Peter Gronkjaer, Einar Hjorleifsson, Ingibjorg G Jonsdottir, Mark Meekan, Madelyn Mette, Susanne E Tanner, Peter van der Sleen, Gotje von Leesen

2023-01-11

Large-scale, climate-induced synchrony in the productivity of fish populations is becoming more pronounced in the world's oceans. ..

Scholarly works icon

Smaller adult fish size in warmer water is not explained by elevated metabolism

Henry F Wootton, John R Morrongiello, Thomas Schmitt, Asta Audzijonyte

2022-03-09

Fish and other ectotherms living in warmer waters often grow faster as juveniles, mature earlier, but become smaller adults. Known..

Scholarly works icon

Interannual temperature variability is a principal driver of low-frequency fluctuations in marine fish populations

Peter van der Sleen, Pieter A Zuidema, John Morrongiello, Jia Lin J Ong, Ryan R Rykaczewski, William J Sydeman, Emanuele Di Lorenzo, Bryan A Black

2022-01-11

Marine fish populations commonly exhibit low-frequency fluctuations in biomass that can cause catch volatility and thus endanger t..

Scholarly works icon

Multigenerational exposure to warming and fishing causes recruitment collapse, but size diversity and periodic cooling can aid recovery

Henry F Wootton, Asta Audzijonyte, John Morrongiello

2021-05-04

Scholarly works icon

Multigenerational exposure to warming and fishing causes recruitment collapse, but size diversity and periodic cooling can aid recovery.

Henry F Wootton, Asta Audzijonyte, John Morrongiello

2021-05-04

Global warming and fisheries harvest are significantly impacting wild fish stocks, yet their interactive influence on population r..

Scholarly works icon

Synergistic effects of harvest and climate drive synchronous somatic growth within key New Zealand fisheries

John R Morrongiello, Peter L Horn, Caoimhghin O Maolagain, Philip JH Sutton

2021-01-27

Fisheries harvest has pervasive impacts on wild fish populations, including the truncation of size and age structures, altered pop..

Scholarly works icon

Marine regime shifts impact synchrony of deep-sea fish growth in the northeast Atlantic

Susanne E Tanner, Eva Giacomello, Gui M Menezes, Alice Mirasole, Joao Neves, Vera Sequeira, Rita P Vasconcelos, Ana Rita Vieira, John R Morrongiello

2020-12-06

The complexity and spatio–temporal scale of populations’ dynamics influence how populations respond to large‐scale ecological pres..

Scholarly works icon

Estimating maturity from size-at-age data: Are real-world fisheries datasets up to the task?

Henry F Wootton, John R Morrongiello, Asta Audzijonyte

2020-08-18

The size and age at which individuals mature is rapidly changing due to plastic and evolved responses to fisheries harvest and glo..