| Papahānaumokuākea Marine National Monument | |
|---|---|
 August 2016 boundary and location | |
  Relief map showing the Monument as part of theHawaiian–Emperor seamount chain | |
| Location | Northwestern Hawaiian Islands, Hawaii Midway Atoll,United States Minor Outlying Islands |
| Coordinates | 25°42′00″N171°44′00″W / 25.70000°N 171.73333°W /25.70000; -171.73333 |
| Area | 582,578 sq mi (1,508,870 km2)[1] |
| Established | June 15, 2006 |
| Governing body | NOAA;FWS;DLNR;OHA |
| Criteria | Mixed: iii, vi, viii, ix, x |
| Inscription | 2010 (34thSession) |
ThePapahānaumokuākea Marine National Monument (pronounced[ˈpɐpəˈhaːnɐwˈmokuwaːˈkɛjə];[2]PMNM) is aWorld Heritage listedU.S. national monument encompassing 582,578 square miles (1.5 million km2) of ocean waters, including ten islands and atolls of theNorthwestern Hawaiian Islands. It was first created by PresidentGeorge W. Bush in 2006 with an initial 140,000 square miles (360,000 km2). PresidentBarack Obama expanded the Monument in 2016, increasing its area more than fourfold by moving its border to the limit of theexclusive economic zone, making it one of theworld's largest protected areas.
The Monument is home to more than 7,000 marine species, one quarter of which are endemic to the Hawaiian Islands, with some only found in the Monument itself. Only 5.8 square miles (15 km2) of land remains above sea level, but it provides critical habitat for many terrestrial species. It also features ancient archaeological sites important to Native Hawaiians. The deeper waters are of interest to maritime historians, as it contains shipwrecks, submerged aircraft, and the remains of those who lost their lives in battles duringWorld War II. As a protected area, the Monument is subject to a commercial fishing ban. PresidentJoe Biden designated the marine areas of the Monument as the Papahānaumokuākea National Marine Sanctuary in 2025.
The Monument protects a large area of the Pacific Ocean, including ocean waters, more than 30submerged banks andseamounts, reefs, and ten islands and atolls of theNorthwestern Hawaiian Islands. The boundary of the Monument begins offshore of the island ofNihoa in the southeast, east of 163° W, closest to the southeastern, windward island ofNiʻihau,[3] just northwest of the island ofKaua‘i.[4] From there, the Monument boundaries extend 1,200 miles northwest toKure Atoll.[4]
The marine boundary extends seaward to the limit of theexclusive economic zone (EEZ) for areas lying west of 163° W longitude.[5] This extended boundary past Kure Atoll spans theInternational Date Line, making the protected waters continuous across theantimeridian.[6] The full protected area covers approximately 582,578 square miles (1,508,870 km2). The protected area is larger than all ofAmerica's national parks combined,[7] and has almost the same surface area as theGulf of Mexico.[8]
About 132,000 square miles (340,000 km2) of the Monument are part of the Northwestern Hawaiian Islands Coral Reef Ecosystem Reserve, designated in 2000. The Monument also includes theMidway Atoll National Wildlife Refuge (590,991.50 acres (2,391.7 km2)[9] andBattle of Midway National Memorial, the Hawaii State Seabird Sanctuary atKure Atoll, and the Northwestern Hawaiian Islands State Marine Refuge.[10]
The islands included in the Monument are all part of thestate of Hawaii, except Midway Atoll, which is part of theUnited States Minor Outlying Islands insular area.Henderson Field, a public airport located on Midway Atoll, provides access to the Monument. Until the 2010s,French Frigate Shoals Airport onTern Island was maintained as a runway. Although not officially decommissioned, the runway is now considered inactive.[11] The Tern Island field station run by the Fish and Wildlife Service in theFrench Frigate Shoals was abandoned in 2012 after a severe storm destroyed its infrastructure.[12]Hurricane Walaka destroyed theEast Island in the shoals in 2018,[13] but it has recently begun to restore itself.[14]
The Monument is jointly managed in partnership between four co-trustees: theDepartment of Commerce, theDepartment of the Interior, theState of Hawai‘i, and theOffice of Hawaiian Affairs (OHA).[15]
The marine areas are the responsibility of the Secretary of Commerce and theNational Oceanic and Atmospheric Administration (NOAA). The area of theMidway Atoll National Wildlife Refuge, theBattle of Midway National Memorial, and the Hawaiian Islands National Wildlife Refuge is the responsibility of theSecretary of the Interior and theU.S. Fish and Wildlife Service (FWS). The Northwestern Hawaiian Islands Marine Refuge and State Seabird Sanctuary at Kure Atoll is the responsibility of the State of Hawaiʻi and theHawaii Department of Land and Natural Resources (DLNR). Activities related toNative Hawaiian interests, customs, rights, practices, and religious traditions are the responsibility of theOffice of Hawaiian Affairs (OHA).[15]
Monument management is supplemented by policy administration developed by a Senior Executive Board. In addition, there is a seven member management board composed of the Office of National Marine Sanctuaries and National Marine Fisheries Service within the NOAA; Ecological Services and Refuges within the FWS; Aquatic Resources and Forestry and Wildlife divisions within the DLNR; and the OHA.[15]
TheNorthwestern Hawaiian Islands (NWHI) are known for its cultural and natural values according toNative Hawaiians, who believe the area representskinship between nature and humanity and that life begins and returns there after death. Archaeological remains have been found onNīhoa andMokumanamana in the area.[16][3]
After theHawaiian Islands were annexed by the United States and became a territory, the area was first protected by the federal government on February 3, 1909. In response to the over-harvesting of seabirds, and in recognition of the importance of the NWHI as seabird nesting sites, U.S. PresidentTheodore Roosevelt created the Hawaiian Islands Bird Reservation throughExecutive Order1019.[17] PresidentFranklin D. Roosevelt converted it into the Hawaiian Islands National Wildlife Refuge in 1940. A series of incremental protection expansions followed, leading to the establishment of Midway Atoll National Wildlife Refuge in 1988, and the Kure Atoll State Wildlife Sanctuary in 1993.[18]
PresidentBill Clinton established the Northwestern Hawaiian Islands Coral Reef Ecosystem Reserve on December 4, 2000, withExecutive Order 13178. Clinton's executive order initiated a process to designate the waters of the NWHI as aNational Marine Sanctuary.[19] In 2005,Governor of HawaiiLinda Lingle declared parts of the Monument a state marine refuge.[20]
PresidentGeorge W. Bush and his wife viewed a screening of the documentary filmVoyage to Kure in April 2006 at theWhite House along with its director,Jean-Michel Cousteau. Compelled by the film's portrayal of the flora and fauna, on June 15, 2006, Bush moved to quickly to expand protections,[21] signingProclamation 8031 which designated the waters of the Northwestern Hawaiian Islands a National Monument under the 1906Antiquities Act. Using the Antiquities Act bypassed the normal year of consultations and halted the public input process and came just before the draftenvironmental impact statement for the proposed Northwestern Hawaiian Islands National Marine Sanctuary was to be published. This was the second use by Bush of the Antiquities Act, following the declaration of theAfrican Burial Ground National Monument onManhattan in February 2006.[22]
The legislated process for stakeholder involvement in the planning and management of amarine protected area (MPA) had already taken five years of effort, but the abrupt establishment of the NWHI as a National Monument, rather than a Sanctuary, provided immediate and more resilient protection. The protection is revocable only by legislation.[23]
President Bush amended Proclamation 8031 with Proclamation 8112, naming the Monument "Papahānaumokuākea" on February 28, 2007.[24] The name is pronounced "Pa-pa-ha-now-mo-ku-ah-kay-uh" and alludes to the Hawaiian creation myth of the Islands.[25] The name is composed of four separateHawaiian words that refer to a singular deity,Papahānaumoku, a goddess and Earth Mother. The goddess is often simply referred to as "Papa". Within the larger name, "hanau" refers to giving birth, "moku" is translated as "islands", and "akea" refers to the expanse and extent of the islands. Hawaiian kumu hulaPualani Kanakaʻole Kanahele translates Papahānaumoku as "the deity of our ancestors who extends to the Northwestern Hawaiian Islands, the great expanse she gave birth to."[26]
Bush announced his intention to submit the Monument forParticularly Sensitive Sea Area (PSSA) status on May 15, 2007, which would "alert mariners to exercise caution in the ecologically important, sensitive, and hazardous area they are entering."[27] In October 2007, the Marine Environmental Protection Committee of theInternational Maritime Organization designated the Monument as a PSSA.[28]
Co-trustees submitted an application for the Monument as a proposed candidate for aWorld Heritage Site in 2007. Dirk Kempthorn of the Secretary of the Interior added the Monument to the tentative list of U.S. candidates along withMount Vernon in early 2008. After an internal review period, the Monument was officially nominated to UNESCO in 2009. The Monument was finally accepted after undergoing an 18 month review process and inscribed on the World Heritage List in 2010 as "Papahānaumokuākea" at the 34th Session of the World Heritage Committee inBrasília.[29]
PresidentBarack Obama expanded the Monument's area by more than four times to the limits of theexclusive economic zone (EEZ) by signing Proclamation 9478 on August 26, 2016.[30] The Monument grew from 139,797 square miles (362,073 km2) to 582,578 square miles (1,508,870 km2), extending west to −163° longitude, protecting ocean waters out to 200 nautical miles.[6] It was at that time the world's largest MPA.[31]
During thefirst Trump administration, Interior SecretaryRyan Zinke put the Monument's status under review.[32]
TheBiden administration first proposed designating the marine environment of the Monument as anational marine sanctuary in November 2021.[33] PresidentJoe Biden finalized the expansion of the protective ocean areas of the Monument as part of his "America the Beautiful" campaign. These portions of the Monument, from the shore of each island or atoll to 200 nautical miles offshore, became the Papahānaumokuākea National Marine Sanctuary, the 18th national marine sanctuary in the United States, on January 15, 2025.[34]
TheDepartment of Government Efficiency (DOGE), acting under the authority of thesecond Trump administration in 2025, was responsible for firing thousands of scientists, some of whom managed the Monument. At the same time, theFederal Aviation Administration (FAA) gaveSpaceX permission to use an area within 50-miles of the Monument as a containment zone for space debris from theStarship launch vehicle.[35] In April, Trump issued Executive Order 10918, "Unleashing American Commercial Fishing in the Pacific", giving the green light to theWestern Pacific Regional Fishery Management Council to open up commercial fishing in the Monument, an action strongly opposed by scientists, conservationists, and Native Hawaiians.[36]
The Monument protects and supports 70% of the coral reefs found in the United States, amounting to approximately 3.5 million acres. The Monument is home to more than 7,000 marine species within its boundaries, one quarter of which areendemic. The limited areas of land found in the Monument hosts a diverse number of endemic plants, land birds, and invertebrates. In addition to these native species, 21 seabird and four migratory shorebird species are found here.[5]
At least 27 endemic species of terrestrial plants are found in the Monument, five of which are endangered and are only known and managed in the area: a species ofLaysan agrimony sandbur (Cenchrus agrimonioides var. laysanensis, possibly extinct),Hawaiʻi chaff flower (possibly extinct),Amaranthus brownii (possibly extinct),Nīhoa carnation, and a species ofLaysan sedge (Cyperus pennatiformis var. bryanii). An additional 22 endemic species to the overall Hawaiian Archipelago are known to live in the Monument, four of which are endangered, with two currently managed as having principal populations in the Monument: a species ofburr cucumber (Sicyos maximowiczii), and the endangeredPritchardia palm tree.[5] Endemic invertebrate species include theNīhoa conehead katydid, theNihoa giant tree cricket,[37] and theNīhoa trapdoor spider.[38]
Four endemic, endangered, and threatened land birds currently found only in the Monument include theNihoa Millerbird,Nihoa Finch,Laysan duck, and theLaysan finch.[5] Other prominent species include the endangeredhawksbill sea turtle and the threatenedgreen sea turtle, of which 95% rely on the French Frigate Shoals for nesting and breeding;[5] the endangeredHawaiian monk seal, and seabirds such as theLaysan albatross.[39]
An expedition to theKure Atoll in 2010 sent divers to a depth of 250 feet (76 m), revealing new species of coral and other animals.Waikiki Aquarium cultured the new coral species.[40] One of the largest sponges in the world was discovered in the Monument in 2015. A scientific expedition by theNOAAS ShipOkeanos Explorer found the sponge while using a remotely-operated vehicle. They were able to measure its size with lasers, loosely comparing it to that of a small mini-van at 3.5 × 2 × 1.5 meters. After taking samples, the team identified the sponge as a member of theRossellidae family. Its age is undetermined, but it is presumably hundreds to possibly even thousands of years old.[41] In 2019, a species of seaweed was discovered that was killing large patches of coral.[42]
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Commercial fishing ended in 2010,[43] with the Monument receiving strict conservation protection, with exceptions for traditional Native Hawaiian uses and limited tourism.[44] The NWHI bottomfish fishery was once a limited entry fishery, with eight vessels, which were restricted to 60 feet (18 m) in length.[45] The fishery once accounted for approximately half of the locally landed bottomfish in Hawaii.[46]
According tothe Pew Charitable Trusts, populations oflobster have not recovered from extensive harvesting in the 1980s and 1990s;[44] the remaining fisheries are overfished.[47] TheNational Marine Fisheries Service (NMFS) reported in 2008 that many species' populations have not fully recovered from a large-scale shift in the oceanic ecosystem that affected the North Pacific during the late 1980s and early 1990s.[48] This shift reduced populations of important species, such asspiny lobster, seabirds and Hawaiian monk seals.[44]
A 2022 study reported that the protective status of the Monument led to the increased recovery of two fish populations with aspillover benefit from the protective areas of the Monument, which acted like a tuna nursery, leading to larger catches outside its boundaries. According to the researchers, theyellowfin tuna catch increased by 54% between 2016 and 2019, whilebigeye tuna take increased by 12%. The catch increased the most 115 to 230 miles from the area boundaries.[49]
The area of the Monument is home to upwards of 80shipwrecks and hundreds of submerged aircraft.[50] Divers found the wreck of theUSNSMission San Miguel (T-AO-129) within the Monument in 2015. She had sunk there on October 8, 1957, when she ran aground onMaro Reef while running at full speed and in ballast.[51] TheBattle of Midway National Memorial is also part of the Monument.[50] The wreck of theImperial Japanese Navyaircraft carrierAkagi, which sank duringWorld War II in theBattle of Midway on June 4, 1942, was found within the Monument by theresearch vesselPetrel in 2019.[52] The wreck ofUSSYorktown is also in the Monument.[53] As casualties of war, the bodies of more than 3,000 military personnel lie within and near the Monument boundaries.[30]
FWS maintained a field station on Tern Island until December 2012, at which time FWS ceased field camp activities due to a storm that damaged the barracks (FWS, 2013a; FWS, 2013c; Spring, 2013).
Signed by President William J. Clinton on Monday, December 4, 2000; published in theFederal Register at 65 FR 76903 on Thursday, December 7, 2000.65FR76903
All commercial fishing eliminated in 2010
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