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February 21, 2026Aquatic Conservation Marine and Freshwater Ecosystems1 citationsOpen Access

Conservation Value of Shallow‐Water Habitats for Rays Within a Long‐Standing Marine Protected Area

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CHCiaran A. HydeUniversity of the Sunshine CoastPKPeter M. KyneCharles Darwin UniversitySPSimon J. Pierce

Key Points

  • The aim is to evaluate the conservation value of shallow-water habitats for rays within a marine protected area.
  • Utilized visual observational transects and baited remote underwater videos for data collection
  • Identified key habitats based on species richness, relative abundance, and community composition
  • Conducted surveys in intertidal mangrove, sand, seagrass, and inshore reef habitats
  • Recorded 1195 observations of 13 ray species across various habitats
  • High species richness and abundance found in central eastern bay locations
  • Minimal overlap between no-take areas and crucial ray habitats indicates conservation gaps
  • Identified important life history functions such as reproduction and feeding in these habitats

Abstract

ABSTRACT Marine protected areas (MPAs) are a widely used tool in the conservation and protection of threatened marine species. When MPAs include the key habitat of species into their design, they can provide refuge and opportunity for recovery from exploitative pressures. This is crucial for elasmobranchs (sharks and rays) that are facing global declines from overexploitation and habitat loss. Using visual observational transects (VOT) and baited remote underwater videos (BRUV), we identified key habitats for subtropical shallow‐water rays within a long‐standing MPA in eastern Australia (Moreton Bay Marine Park), based on species richness, relative abundance and community composition. We made 1195 observations of rays from 13 species across intertidal mangrove, diverse sand, seagrass and inshore reef habitats. High species richness and relative abundance were recorded at central eastern bay locations where intertidal mangrove and diverse sand habitats occurred extensively and appeared ecologically interconnected. There was minimal overlap of ‘no‐take’ areas with important ray habitats within Moreton Bay Marine Park, signifying a limitation of no‐take zones to contribute to ray conservation. Aligning the Important Shark and Ray Area (ISRA) Criteria determined that a high diversity of rays, including threatened species, use these sites for vital life history functions including reproduction, feeding and/or resting. This study underscores the need for incorporation of a range of habitat types into MPA design to maximise their value to rays.

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Cite This Study

Hyde et al. (2026) studied this question.

synapsesocial.com/papers/69994d42873532290d021cf4https://doi.org/10.1002/aqc.70339
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