Socioeconomic Impacts of Changes to Marine Fisheries and Aquaculture that are Brought About Through Climate Change

Stoeckl, Natalie; Larson, Silva; Thomas, Joseph; Hicks, Christina C.; Pascoe, Sean; Marsh, Helene

doi:10.1002/9781119154051.ch28

Cited by 5 publications

(3 citation statements)

References 125 publications

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“…Finding socially, economically and politically feasible ways to cover the possible temporary or prolonged reductions in production necessitated by fisheries reform is a major but often overlooked challenge (Stoeckl et al, 2017). Even under the best‐case scenario (e.g.…”

Section: Resultsmentioning

confidence: 99%

“…Alternatively, DA—also known as hatchery‐based aquaculture (FAO, 2001)—refers to species that have fully closed production cycles, with aquaculture itself producing seed for new generations (Lovatelli & Holthus, 2008; Teletchea, 2015; Teletchea & Fontaine, 2014) (Figure 1; Teletchea levels 4–5). Completely decoupling production from wild stocks means that DA potentially provides both a means to increase production without impacting wild stocks through seed collection and a way to compensate for reduced catches, for example, from stock collapses or production gaps due to the implementation of more sustainable harvest control rules (Costello et al, 2016; Stoeckl et al, 2017; Walsh et al, 2018). A necessary first step in evaluating the potential impacts and benefits of aquaculture is therefore to identify which species are potentially produced by CBA compared to DA.…”

Section: Introductionmentioning

confidence: 99%

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Biological life‐history and farming scenarios of marine aquaculture to help reduce wild marine fishing pressure

Froehlich,

Montgomery,

Williams

et al. 2023

Fish and Fisheries

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Aquaculture (freshwater and marine) has largely supplemented fisheries, but in theory could help reduce fishing pressure on wild stocks. Although not the sole factors, some potential benefits depend on aquaculture pressures on fished species, including collection of wild ‘seed’ material—earlier to later life stages—for rearing in captivity and the capacity of aquaculture to increase. Here we first classify 203 marine (saltwater and brackish) animal species as being produced by either open‐cycle capture‐based aquaculture (CBA) or closed‐cycle domesticated aquaculture (DA)—based on their likely reliance on wild seed—and assess the extent to which these forms of aquaculture could support seafood production and greater wild biomass. Using a data‐limited modelling approach, we find evidence that current aquaculture practices are not necessarily helping reduce fishing to sustainable levels for their wild counterparts—consistent with emerging scientific research. However, if some wild capture species (87 equivalent spp.) were instead produced through CBA, almost a million extra tonnes could theoretically be left in the wild, without reducing seafood production. Alternatively, if reliance on wild seed inputs is further reduced by shifting to DA production, then a little less than doubling of aquaculture of the overexploited species in our study could help fill the ‘production gap’ to support fishing at maximum sustainable levels. While other ecological (e.g. escapes), social and economic considerations (e.g. market substitution) are important, we focused on a critical biological linkage between wild fisheries and aquaculture that provides another aspect on how to improve management alignment of the sectors.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biological life‐history and farming scenarios of marine aquaculture to help reduce wild marine fishing pressure

Froehlich,

Montgomery,

Williams

et al. 2023

Fish and Fisheries

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show abstract

“…Climate-driven changes in the productivity and distribution of marine fish stocks targeted for commercial use are being observed and predicted globally (Cheung et al, 2009(Cheung et al, , 2010Hiddink et al, 2015;Weatherdon et al, 2016). Secondary effects in fisheries in the form of changing fleet dynamics, fishing location choices, gear deployment, targeting and discarding behaviors, supplies to market and ultimately, social and economic returns from these fisheries, are increasingly evident (Michael et al, 2017;Senapati and Gupta, 2017;Stoeckl et al, 2017). This is particularly the case in marine warming "hot spot" areas (Dulvy et al, 2008;Pecl et al, 2014a;Caputi et al, 2016), such as Australia's southeastern marine region where exposure to climate-driven changes and sensitivity, for a number of species, is high (Pecl et al, 2014cChampion et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Responding to Climate Change: Participatory Evaluation of Adaptation Options for Key Marine Fisheries in Australia’s South East

et al. 2020

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Planned adaptation to climate impacts and subsequent vulnerabilities will necessarily interact with autonomous responses enabled within existing fisheries management processes and initiated by the harvest and post-harvest components of fishing industries. Optimal adaptation options are those which enable negative effects to be mitigated and opportunities that arise to be maximized, both in relation to specific climate-driven changes and the broader fisheries system. We developed a two-step participatory approach to evaluating adaption options for key fisheries in the fastwarming hotspot of south-eastern Australia. Four fisheries (southern rock lobster, abalone, snapper, and blue grenadier) were selected as case studies on the basis of their high to moderate vulnerability to climatic effects on species distribution and abundance. Involved stakeholders undertook a "first pass" screening assessment of options, by characterizing and then evaluating options. In the characterization step potential adaptation options for each fishery, contextualized by prior knowledge of each species' climate change exposure and sensitivity, were described using a characterization matrix. This matrix included: the specific climate vulnerability/challenges, the implications of each option on the fishery system as a whole, the temporal and spatial scales of implementation processes, and realized benefits and costs. In the evaluation step, semi-quantitative evaluation of options was undertaken by stakeholders scoring the anticipated performance of an option against a pre-determined set of criteria relating to perceived feasibility, risk (inclusive of potential costs), and benefit. Reduction of the total annual commercial catch as well as reductions in both effort and catch through spatial and temporal closures were the options scored as having the highest level of expected benefit and of feasibility and the lowest level of risk of negative outcomes overall. Our screening assessment represents a pragmatic approach to evaluate and compare support for and the effects of alternative adaptation options prior to committing to more detailed formal and resource intensive evaluation or implementation.

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How Might Climate Change Affect the Ethology and Behavioral Ecology of Dugongs and Manatees?

Marsh

Albouy

Arraut

et al. 2022

Ethology and Behavioral Ecology of Marine Mammals

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Socioeconomic Impacts of Changes to Marine Fisheries and Aquaculture that are Brought About Through Climate Change

Cited by 5 publications

References 125 publications

Biological life‐history and farming scenarios of marine aquaculture to help reduce wild marine fishing pressure

Biological life‐history and farming scenarios of marine aquaculture to help reduce wild marine fishing pressure

Responding to Climate Change: Participatory Evaluation of Adaptation Options for Key Marine Fisheries in Australia’s South East

How Might Climate Change Affect the Ethology and Behavioral Ecology of Dugongs and Manatees?

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