Nature in Tuvalu

Tuvalu has no single national nature service or single national-park system. Nature management combines formal law with community and customary systems. The Department of Environment, the Tuvalu Fisheries Authority and Tuvalu Fisheries Department, the Ministry of Natural Resources Development, Kaupule and Falekaupule, and the Tuvalu Meteorological Service each perform different functions. A Kaupule is the local island council, while a Falekaupule is the traditional authority that represents the island community. The main natural environments include the open ocean, outer reefs, lagoons, back reefs, lagoon floors, patch reefs and natural channels. On land, they include broadleaf and littoral forest, scrub, coconut agroforest, pulaka and taro pits, gardens, mangroves, beaches, dunes, coral rubble and reef flats. Tuvalu has no freshwater surface lakes or rivers. Its wetlands are mainly brackish or shallow marine, and freshwater lenses are vulnerable to saltwater intrusion. Natural processes continually reshape the islands. Reef calcification produces carbonate sediment that contributes to island formation. Erosion and accretion can change shorelines, while sea-level rise, storm surge, waves, inundation, drought and saltwater intrusion affect land, crops, water and coastal habitats. Historical evidence has not established one uniform pattern of net land loss across Tuvalu, and future changes remain uncertain between islands. Ocean warming, acidification and coral bleaching increase the pressure on reefs. Tuvalu uses Conservation Areas, or CAs, and locally managed marine areas, or LMMAs. The Funafuti Conservation Area is the best-known marine example. Eight outer-island LMMAs are recorded for Nanumea, Nanumaga, Niutao, Nui, Vaitupu, Nukufetau, Nukulaelae and Niulakita. Local rules may also use terms such as Special Protected Area, or SPA, and koga tapu for customary restrictions. Under the Conservation Areas Act, the Minister can declare a Conservation Area by Gazette after a Kaupule report, scientific assessment and consultation. The Kaupule manages the area through a community-supported management plan that can set restrictions, awareness and training measures, and benefit-sharing arrangements. A written agreement with landowners can regulate access and control. Conservation Areas are intended to support public enjoyment and scientific study, but access is not automatically unrestricted. Local community rules, landownership, fishery licences and wildlife or closed-area licences can determine whether a person may enter, fish, collect resources or use a boat. The Conservation Areas Act prohibits the discharge of pollutants or hazardous substances and restricts hunting, killing or catching turtles, birds and fish. Removing non-living resources requires written Kaupule approval. A breach can attract a maximum penalty of a $5,000 fine or 28 months' imprisonment. Under the Wildlife Conservation Act, the Minister may identify fully or partly protected animals, sanctuaries and closed areas and may require licences. Wild turtles on land, turtle eggs and nests, and other protected animals may only be handled in accordance with a valid licence. Available protected-area datasets do not give one fully consistent picture. The PIPAP and WDPA records list nine protected areas, with about 212.27 square kilometres of marine area and 5.71 square kilometres of terrestrial area. The recorded marine figure represents about 0.03 percent and the terrestrial figure about 20.19 percent in that dataset. The Funafuti Conservation Area is recorded as 40 square kilometres in WDPA data and about 33 square kilometres by the Tuvalu Fisheries Authority. These differences reflect data sources and measurement methods. No management-effectiveness assessment is recorded for the protected areas. Marine resources have very high practical relevance. Reef fish, corals, algae, invertebrates, seabirds, marine mammals, turtles and mangroves support subsistence, artisanal and commercial fishing, food security and income. The green turtle, Chelonia mydas, nests in the Funafuti Conservation Area. Species counts also vary by dataset: PIPAP lists 1,290 species and three threatened species, a regional state-of-the-environment dataset lists 1,456 species with 8.2 percent at risk, and an older 2009 baseline recorded 1,449 marine species. These figures should not be treated as one current national inventory. Major pressures include coral bleaching, marine heat, ocean warming, ocean acidification, storms, crown-of-thorns starfish, overfishing, pollution, wastewater, nutrient inputs, coastal degradation and habitat loss. The invasive Yellow Crazy Ant, Anoplolepis gracilipes, threatens terrestrial biodiversity. Sargassum polycystum has increased in connection with nutrient pollution, especially around Funafuti. Drought and weak lagoon exchange can add pressure to coastal ecosystems. Fisheries protection therefore has to balance conservation with customary use, subsistence fishing and commercial activity. Eight Coastal Fisheries Management Plans cover all outer islands except Funafuti for 2024 to 2027. They received Cabinet endorsement on 15 August 2024 and are intended to be implemented by Kaupule, Falekaupule and communities with support from the Tuvalu Fisheries Department. The Tuvalu Fisheries Authority Corporate Plan for 2026 to 2028 includes a national LMMA strategy, size limits for at least five key species, coral and bleaching monitoring, and ciguatera monitoring. Department of Environment programmes and fisheries awareness work also use school and community education, traditional knowledge, creel and stock monitoring, water-quality monitoring and coral monitoring. Development can create conflicts between coastal construction or reclamation and reefs, beaches, sediment movement and freshwater lenses. Formal restrictions can also conflict with customary access and landownership. The Environment Protection Act 2008 and EIA Regulations 2014 require the Department of Environment to assess development before a project begins through a preliminary environmental assessment report or an environmental impact assessment. Approval conditions and possible fees can apply, but nationwide fee amounts and processing deadlines are not consistently published. Transport, boats, guides and local permissions also vary by island. Emergency and disaster response belongs to a separate policy area, although storms, inundation and drought remain direct pressures on Tuvalu's natural systems.