Curtin University

Reef fish assemblages are dynamic and heterogeneous across both temporal and spatial scales. Understanding these patterns is essential for effective management strategies that aim to protect marine communities. We investigated whether previously described cross and longshore patterns in reef fish assemblages persisted after a decade of high ocean temperature variability driven by the El Niño-Southern oscillation and a significant marine heatwave in 2011. Two nearshore marine parks near Perth, Western Australia, located 70 km apart, were sampled in 2012 and 2023 using Baited Remote Underwater stereo-Video systems. At each location, distinct inshore, midshore, and offshore reef lines were targeted across a depth gradient of 3-23 m. Inshore-to-offshore assemblage patterns described in 2012 remained temporally consistent in 2023, with each reef line representing distinct compositions at both locations. The mean relative number of species, the mean relative abundance of fish per deployment, and the mean relative abundances of most individual feeding guilds, were also similar between years. Although assemblage and feeding guild compositions differed at a few locations between years, these changes were likely driven by the localised variation in the distribution of some focal species across reef lines. Planktivores were the only feeding guild to significantly increase in abundance over time. As cumulative anthropogenic and climate pressures increase, it is likely assemblage modification will occur more often. To protect the full range of fish assemblages, it would be appropriate for future spatial management to include fully protected sanctuary zones across inshore, midshore, and offshore reef lines at both locations. • Cross-shore assemblage patterns of increasing species richness and fish abundance was consistent in 2012 and 2023 • Reef fish assemblage compositions had minor differences between 2012 and 2023 • Planktivores were the only feeding guild to increase in abundance • For future management, including no-take sanctuary zones across all three reef lines would be most appropriate

The 4th UN General Assembly declaration on non-communicable diseases (NCDs) and mental health, adopted on Dec 15, 2025, was notable for its explicit inclusion of dementia, bringing dementia prevention into focus as an international public policy priority.1 A central question therefore becomes how dementia prevention will be prioritised, resourced, and implemented and how it will be integrated into existing NCD policies and health-system strategies (appendix).

During the Early Cambrian, post-collisional granitic intrusions of Narigan and Zarigan and associated iron oxide–apatite deposits developed within the Posht-e-Badam Block. These intrusions were accompanied by widespread magmatic-derived sodic–calcic metasomatism. This metasomatism was characterized by mineralization of U, Th, REE, Zr and Nb in association with albite and actinolite. Although present in Narigan and Zarigan, the metasomatism is most extensively developed in the Saghand area. Concurrently in Narigan, silica veins bearing uranium and molybdenum formed from magmatic hydrothermal fluids, occasionally mixed with uranium-bearing meteoric solutions leaching the volcanic host rocks. Later, during Silurian time, or slightly earlier, the intrusion of mafic magmas and dykes initiated a large-scale, saline, meteoric–hydrothermal system, particularly pronounced in Zarigan. This system induced pervasive sodic metasomatism that overprinted earlier formations. It remobilized uranium from early Cambrian primary minerals, leading to formation of secondary mineral phases including titanite, rutile and thorite, marking a significant uranium redistribution event.