111 results

Cumulative impacts across fisheries in Australia's marine environment

Project number: 2018-020
Project Status:
Completed
Budget expenditure: $391,000.00
Principal Investigator: Beth Fulton
Organisation: CSIRO Oceans and Atmosphere Hobart
Project start/end date: 17 Mar 2019 - 29 Nov 2020
Contact:
FRDC

Need

The need for cumulative impact assessment (CIA) is increasingly being recognized. The development process for Australia's Harvest and Bycatch Policies, and their associated guidelines have reinforced the need for assessment of cumulative impacts, and the EPBC Act has also explicitly required consideration of cumulative impacts.

Where multiple activities occur or are planned, an understanding of their combined effects on the environment is necessary to address policy requirements and achieve sustainability. The concept of cumulative impact assessment is not new – indeed cumulative assessment has been recognized for many years, and a range of methods have been proposed around the globe. However, no methodology for undertaking cumulative assessments has been accepted nationally or globally. In addition to considering the impacts across all fishing sectors (commercial, recreational, indigenous, as required by recent changes to the Fisheries Administration Act 1991) and all fisheries, there is also an increasing need to consider other users of marine resources and coastal waters (e.g. renewable energy, shipping etc), especially where space crowding may be an issue.

Target species stock assessments typically consider the species of interest as well as other sources of fishing mortality (e.g. discards), but they do not usually consider their effects on other fisheries sectors or the effects of other sectors on the focal fishery. CIA methods therefore need to consider interactive and indirect effects. To date, interactive effects are often viewed as additive (simple linear addition of one impact to another) with little consideration given to synergistic, antagonistic or non-linear effects. While the ERAEF toolbox used for assessment of bycatch and protected species has some potential options for cumulative impacts (e.g. SAFE method), at this stage they are insufficient for moving to the scales and complexities across multiple fishing sectors and fisheries.

Thus, sustainable fisheries management requires new approaches that consider all sectors and all fisheries and how they impact the environment. Such CIAs will be challenging given that empirical data are often lacking - a dedicated research effort is needed.

Objectives

1. Undertake a two part review. This first part being to review existing cumulative impacts literature on methods applied elsewhere in the world, to produce design principles for a scalable cumulative impacts approach
and a synthesis of current benchmark methods and gaps in methods that must be filled to deliver Australian needs. And the second part being a global ERA review to identify cumulative impacts seen in other fisheries, with the specific focus of this review as specified by the AFMA led ERA/ERM working group – including looking: (i) at the assessment methods used elsewhere
(ii) their information needs and context
(iii) the strengths and weaknesses of the different approaches
(iv) synergies and efficiencies that can be adopted
and (v) recommend cost-effect ERA/ERM integration of additional methods that have been found to be appropriate given an AFMA context.
2. Characterise cumulative issues complicating cumulative impact assessments and, via a methods scan, deliver a list of options for addressing these issues
3. Develop a cumulative impacts framework that structures the sequence of analyses done for each assessment based on the characteristics of the sectors and ecological components involved– target, bycatch and protected species, and habitats and ecological communities
4. Perform an Australia-wide cumulative impacts assessment, with fishery-specific results, for (i) commonwealth fisheries across ecological components, (ii) indigenous and recreational sectors that interact with commonwealth fisheries for these components and (iii) and state and recreational fisheries where they overlap with Commonwealth fisheries.

Final report

Authors: E.A. Fulton Piers Dunstan Rowan Treblico
Final Report • 6.18 MB
2018-020-DLD.pdf

Summary

The world is changing more rapidly than any one individual can track. The Environment Protection and Biodiversity Conservation Act 1999 (1999) (EPBC Act) requires for all human activities, such as fisheries, to be sustainable not only in isolation but in combination with other anthropogenic activities and the general state of the environment. It is difficult for fishery managers and operators to comply with this requirement without appropriate assessment methods. In addition, trying to understand the complete state of an ecosystem and all its interacting parts is a substantial and challenging task, especially for a nation with national waters as large and diverse as Australia’s.
In response researchers from the CSIRO and the University of Adelaide set about reviewing existing tools used to undertake Ecological Risk Assessments (ERAs) or Cumulative Effects Assessments (CEAs). This information then formed the basis for developing a new Cumulative Effects Assessment framework which was applied to 409 species around Australia to understand what the cumulative effects of fisheries are on Australia’s marine systems. This understanding and the recommendations made around strengthening existing assessment methods used by the Australian Fisheries Management Authority (AFMA) and other fisheries regulatory agencies will place Australia in a better place to ensure it is not only meeting regulatory requirements, but supporting sustainable industries and helping to coordinate across government agencies to safeguard healthy marine ecosystems into Australia’s future.

Compilation of information for the US Marine Mammal Protection Act Comparability Finding process

Project number: 2019-212
Project Status:
Completed
Budget expenditure: $77,840.00
Principal Investigator: Alice I. Mackay
Organisation: Alice Ilona Mackay
Project start/end date: 11 Oct 2020 - 18 Feb 2021
Contact:
FRDC

Need

The Department of Agriculture, Water and Environment require relevant information be collated on marine mammal populations that interact with fisheries classified as 'export' under the provisions of the US Marine Mammal Proection Act.

The Department of Agriculture, Water and Environment have listed several marine mammal species for which mortalities have been recorded in Australian fisheries and require an estimate of Nmin, Rmax and Fr for each of these species in order to determine for which a PBR approach is currently feasible. Data deficiencies that prevent PBR being calculated for a given species need to be determined and potential approaches to obtain relevant information identified.

If PBR is not a feasible approach to be undertaken for any of the marine mammal species identified, other relevant data for each species and 'export' fishery will need to collated in order for NOAA to be able to determine if a comparability finding for that fishery can be granted. This could include information on the level of monitoring in that fishery, temporal or spatial overlap with the marine mammals species and existing management of interactions such as fishery specific bycatch management strategies.

Objectives

1. Where possible provide estimates of maximum potential population growth rate (Rmax), minimum estimate of abundance (Nmin) and recovery factor (FR) for each species of marine mammal listed by the Department of Agriculture, Water and Environment.
2. For each marine mammal species compile requested information on listed status under Australian and US legislation, including temporal and spatial overlap with relevant fisheries or jurisdictions, information on population structure and behavioural traits of that species that make it more or less likely to interact with fishing operations, and existing bycatch management strategies.
3. Given existing data, determine the ability to calculate PBR for marine mammal species as a means of applying bycatch limits in Australian fisheries, and, if PBR cannot be calculated, investigate specific fisheries management arrangements, including bycatch monitoring regimes, and other information available for each ‘export’ fishery where interactions with marine mammals have been recorded, and provide an assessment of the potential level of impact of interactions for each species and / or population. Where appropriate, identify additional information that could be collected, for each marine mammal species and ‘export’ fishery, that in lieu of PBR, could assist the US in determining a ‘comparability rating’ for that fishery.

Final report

Author: Alice I. Mackay
Final Report • 2021-09-01 • 5.73 MB
2019-212-DLD.pdf

Summary

Recent changes to legislation in the United States (US) requires that nations importing seafood must demonstrate that they have a regulatory program for reducing marine mammal bycatch that is comparable in effectiveness to the US standards under the ‘Fish and Fish Product Import Provisions’ of the Marine Mammal Protection Act 1972 (MMPA). A comparability finding means the marine mammal protection provisions in the relevant fishery are recognised to be equivalent to that of the United States.
Several Australian commercial fisheries have received an ‘exempt’ classification under the MMPA import provisions which means they have been determined to have a remote likelihood, or no known incidental mortality of marine mammals. The remaining fisheries that are seeking a comparability finding have been classified as ‘export’ fisheries as they were determined to have more than a likelihood of incidental mortality to marine mammals. For each of these fisheries, the US requires information on monitoring programs in the fishery, levels of marine mammal bycatch, the species and ‘stocks’ (populations) involved, and the management strategies in place to mitigate bycatch.
This report synthesises the required information for 15 Australian Commonwealth managed commercial fisheries or fishery subsectors, and 29 Australian State and Territory commercial fisheries that are seeking a comparability finding under the US MMPA. Reports and / or observations of marine mammal interactions in Australian commercial fisheries that are not seeking export approval are also synthesised as this information is also required as part of the comparability finding process.
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