Threatened Species Conservation Act 1995 identifies the migratory little tern (Sterna albifrons) and the beach stone-curlew (Esacus neglectus) as endangered. Seabirds that utilize the Cape Byron Marine Park are the providence petrel (Pterodroma solandri), flesh-footed shearwater (Puffinus carneipes), and the masked booby (Sula dactylatra) which are protected under the National Parks and Wildlife Act 1974. Invertebrates Although no invertebrates have been identified as endangered or vulnerable, it is important to acknowledge that there are a plethora of them within the Cape Byron Marine Park which are critical to the health of the local ecosystems. These include a variety of molluscs such as the gold ring cowries (Cypraea annulus), crustaceans such as the zebra shrimp (Ganthophylum americanum) and the seven armed sea star (Luidia australiae). These invertebrates have been noted as they are not usually found in areas and climates such as the Cape Byron Marine Park. The zebra shrimp and the seven armed sea star are rarely found in intertidal habitats and the gold ring cowries share a tropical affinity and demonstrate a rare occurrence in which the Cape Byron Marine Park is a habitat for both temperate and tropical species. Environmental threats and issues There are several ongoing threats to the Cape Byron Marine Park and its biodiversity. These environmental threats and issues include tourism and recreational use, fishing, pollution, development, invasive species, disease and climate change. The current trend of ocean temperature increases impacts the local habitat conditions, species range, and the impact of the EAC. Tourism and recreational use of the Cape Byron Marine Park has impacted on the populations of grey nurse sharks (Carcharias taurus). Grey nurse sharks maintain the same nursery breeding grounds which are often disturbed by tourism activities such as divers and often the use of shark repellent. Shark netting protected swimmers on beaches has also been linked to mortality of grey nurse sharks. Increased boat traffic, pollution and fishing equipment are also a threat to the humpback whale on their migratory journey. Recreational fishing which is permitted in the Cape Byron Marine Park has also been linked to mortality rates of grey nurse sharks. It has been reported that the injuries sustained by grey nurse sharks in the form of jaw injuries and internal fishing hook, which can cause disease or internal injuries which has increased the long term mortality rates. Considering that over 30% of grey nurse sharks reported have fishing