This record provides an overview of the NESP Marine and Coastal Hub Research Plan 2024 project "Potential impacts of offshore wind developments on eastern Indian Ocean pygmy blue whales (Balaenoptera musculus brevicauda)". For specific data outputs from this project, please see child records associated with this metadata. -------------------- Pygmy blue whales (Balaenoptera musculus brevicauda) are listed as Endangered under the Environment Protection and Biodiversity Conservation Act (EPBC 1999), and their distribution and Biologically Important Areas (BIAs) overlap with areas proposed for offshore renewable energy (ORE) development in Western Australia, South Australia, Victoria, and potentially NSW. This project will quantify the distribution and location of areas of residency (e.g., foraging) for eastern Indian Ocean pygmy blue whales, where these overlap with proposed ORE developments, and assess the potential impacts of these developments to the species in addition to existing impacts from other anthropogenic activities. The outputs from this project will assist government, regulators, proponents, and other stakeholders in the assessment and mitigation of ORE projects to this threatened species, and will identify future research and associated data collection needs. Outputs • Spatial layers quantifying the relative distribution including migratory corridors and foraging areas across the known eastern Indian Ocean pygmy blue whale range [dataset] • Spatial layers of habitat suitability distribution [dataset] • Spatial layers for human activities identified as key pressures in this study [dataset] • Spatial layers of cumulative impact score across the species' range including potential threats from ORE and existing threats from other industries [dataset] • Final project report [written]

The goal of the program was developing comprehensive inventories and maps of the distribution and abundance of physical and biological seabed habitats, seagrasses and benthic assemblages to provide baseline environmental mapping and a description of ecological patterns. The benthic habitat mapping was performed by utilising R/Python and Maxent software within the species distribution modelling domain. We correlated the probability of occurrence of individual benthic habitat classes with the environmental predictors developed form the multibeam hydroacoustic dataset. The data is presented as a maximum likelihood map incorporating all five prediction classes: (1- Macroalgae; 2- Filter Feeders; 3- Seagrass; 4- Hard Corals; 5- Bare seafloor). An updated version of this data are available (2022) Revised predictive benthic habitat map for Darwin Harbour. Report prepared for Department of Environment, Parks and Water Security. Australian Institute of Marine Science, Darwin, 127 pp.

This project updates the 2019 predictive benthic habitat map for this region, extending past the subtidal zone of the harbour to include intertidal habitats. The project worked with collaborators to synthesise existing data sets for inclusion in benthic habitat mapping process. Hydrodynamic model variables were updated and new digital elevation data included to provide a more accurate representation of the bed shear stress, waves and current. LiDAR surveys were conducted to fill in the gap between the IX bathymetric survey and the high tide water mark. The LiDAR survey data extended the existing bathymetry data. A total of 30 towed video transects were conducted in areas predicted to have a high probability of benthic fauna occurrence based on the existing predictive model. The benthic habitat model was updated to include NTG historical data, new towed video data, hydrodynamic and light data.

This record provides an overview of the scope and research output of NESP Marine Biodiversity Hub Project B1 - "Road testing decision support tools via case study applications". No data outputs are expected for this project. -------------------- This project will deploy advances in decision-support to assist Commonwealth Marine Reserve managers progress the implementation of evidence-based adaptive management throughout the reserve estate. Two case studies will treat selected decision problems in detail. Specifically: • The identification of decision thresholds that may trigger a change in management, framed within Parks Australia’s performance monitoring template. • The prioritisation of information acquisition through research and monitoring. The two case studies involve coherent integration of ecological models, social and organisational value judgements, and economic analysis. Planned Outputs • Progress reports describing interim outcomes of the (a) decision thresholds and (b) research and monitoring prioritisation case studies. • At least two publications in high impact peer-reviewed journals. • Two final reports describing outcomes of the (a) decision thresholds and (b) research and monitoring prioritisation case studies. • At least two publications in high impact peer-reviewed journals. • Training and associated materials

This record provides an overview of the scope and research output of NESP Marine Biodiversity Hub Project A6 - "Prioritisation of research and management needs for Australian elasmobranch species". For specific data outputs from this project, please see child records associated with this metadata. -------------------- NERP successfully demonstrated new ways to get the raw ingredients for evidence-based management of previously intractable species: abundance, survival, connectivity. But there is still a need to explore/demonstrate how management can use these tools (e.g. adaptive control of bycatch, or deciding if more monitoring is needed), and which species are suitable. This project comprises (i) a workshop to re-assess Australian shark and ray species in terms of degree-of-concern, state-of-knowledge-for-management, and feasibility-of-filling-knowledge-gaps; and (ii) a desk study exemplifying one pathway to management use. In 2016, we will work with DoE to prioritize species for research and explore more management pathways. Planned Outputs • A report outlining workshop findings, recommendations relative to data gaps and effective research approaches to address these gaps. • A paper demonstrating how management can use new methods to examine adaptive monitoring of bycatch to assess impact • Presentation of results to key stakeholders and end users

This record provides an overview of the scope and research output of NESP Marine Biodiversity Hub Project A11 - "Shark action plan". No datasets were generated by this project. -------------------- Conservation of elasmobranch species (sharks and rays) is an increasing priority globally, including Australia, as evidence of overexploitation of some species becomes apparent. Common issues and threats among elasmobranch species may improve management if considered holistically. This project will produce a Shark Action Plan assessing requirements for improved management including a summary of current status across the taxa, guidelines for reducing impacts and improving management, and identification of key knowledge gaps impeding conservation and management. This Plan will help guide policy for Australian elasmobranchs developed by DoEE and fishery managers. On-ground conservation will be developed from recommendations in this plan. Outputs • Shark Action Plan relevant to management of Australian elasmobranchs including an assessment of current threats, prioritised conservation and management actions for at-risk species and guidance on future management and data needs [written] • Manuscripts for scientific journals outlining the results of project components (eg, Conservation Dependent species framework) [written]

CSV files of location data (position estimates) for hammerhead sharks tagged with Wildlife Computers miniPAT archival tags and SPOT6 tags. Note that miniPAT data estimates may be up to 100 km (Kevin Lay, Wildlife computers pers comm). Location estimates from archival miniPAT tags also need to be considered against ARGOS location classes (see http://www.argos-system.org/manual/3-location/34_location_classes.htm). Collectively, movements are restricted within state waters with no hammerheads moving across state or International boundaries.

This record provides an overview of the scope and research output of NESP Marine Biodiversity Hub Project A8 - "Exploring the status of Western Australia’s sea snakes". For specific data outputs from this project, please see child records associated with this metadata. -------------------- All sea snakes are listed marine species under the EPBC Act and three Australian endemic species are listed as Critically Endangered or Endangered, and as such are a national conservation priority. This project examines existing data from the northwest marine region to define sea snake relative abundance and distribution patterns, including within CMRs, to refine species status. Synthesis of existing data will be useful to DOE, DPaW, Parks Australia and others. This analysis will help establish baseline data, guide future research, define abundance in and use of CMRs and refine EPBC listings and recovery plans. Planned Outputs • A report outlining the presence and relative abundance of sea snakes in northwestern Australia with a focus on reef and shoal habitats including identification of BIAs or key habitats where possible. Research and management priorities will be highlighted. • Presentation of results to key stakeholders and end users • Presentation of recommendations at scientific conferences • Communication of findings to the broader community via social media

Google Earth KMZ files of hammerhead sharks tagged with Wildlife Computers miniPAT archival tags and SPOT6 tags. Files of animals tagged with MiniPAT tags include an MELE polygon, which is the 'Maximum extent of location estimates', that is, a polygon enclosing all position estimates at the maximum error level (100 km). Collectively, movements are restricted within state waters with no hammerheads moving across state or International boundaries.

It is recognised that Indigenous communities are likely to be impacted by Offshore Renewable Energy (ORE) wind farm developments. This work conducted a desktop study to identify Traditional Owner interests in areas adjacent to current ORE development areas. The purpose of the work was to gauge the extent of existing knowledge on cultural values and list appropriate avenues for future engagement with Traditional Owners to better understand the potential impact of ORE developments. This included identifying existing Sea Country plans for these communities, identifying existing information on cultural values, investigating Indigenous Cultural Intellectual Property, and further notes on preferred methods of engagement for these Indigenous communities potentially impacted by ORE developments. This raw spreadsheet of compiled information is withheld due to cultural sensitivities, but a synthesis of information will be available in the Project 3.3 final report once finalised (estimated May-June 2024). Please contact the NESP Data Wrangler (Southern node) to discuss access to the raw spreadsheet of information: Emma.Flukes@utas.edu.au