Marine protected area

This article is about marine protected areas specifically. For protected regions of environmental or cultural value in general, see protected area.
Milford Sound, New Zealand is a strict marine reserve (Category Ia) Mitre Peak, the mountain at left, rises 1,692 m (5,551 ft) above the sea.[1]

Marine protected areas (MPA) are protected areas of seas, oceans or large lakes. MPAs restrict human activity for a conservation purpose, typically to protect natural or cultural resources.[2]

Marine resources are protected by local, state, territorial, native, regional, or national authorities and differ substantially among nations. This variation includes different limitations on development, fishing practices, fishing seasons and catch limits, moorings and bans on removing or disrupting marine life.

In some situations (such as with the Phoenix Islands Protected Area), MPAs also provide revenue for countries, potentially equal to the income that they would have if they were to grant companies permissions to fish.[3]

The largest marine protected areas are in the Indian and Pacific Oceans in the exclusive economic zones of certain British Overseas Territories and Territories of the United States. As of 2014, more than 6,500 MPAs encompassed 2.09% of the world's oceans.[4] The September 2014 expansion of the Pacific Remote Islands Marine National Monument increased MPA coverage to over 2%, with 0.83% in strongly protected no-take marine reserves.[4] In March 2015, the government of the United Kingdom announced funding for the creation of the largest contiguous marine protected reserve in the world around the Pitcairn Islands.[5]

Terminology

"MPA" is an umbrella term for protected areas that includes some area of marine landscape and/or biodiversity. The IUCN defines a marine protected area as:

"Any area of the intertidal or subtidal terrain, together with its overlying water and associated flora, fauna, historical and cultural features, which has been reserved by law or other effective means to protect part or all of the enclosed environment."[6]

An alternative is "a clearly defined geographical space, recognized, dedicated, and managed through legal or other effective means, to achieve the long term conservation of nature with associated ecosystem services and cultural values".[7]

United States Executive Order 13158 in May 2000 established MPAs, defining them as;

"Any area of the marine environment that has been reserved by federal, state, tribal, territorial, or local laws or regulations to provide lasting protection for part or all of the natural and cultural resources therein."[8]

The Convention on Biological Diversity defined the broader term of marine and coastal protected area (MCPA);

"Any defined area within or adjacent to the marine environment, together with its overlying water and associated flora, fauna, historical and cultural features, which has been reserved by legislation or other effective means, including custom, with the effect that its marine and/or coastal biodiversity enjoys a higher level of protection than its surroundings."[9]

Classifications

The Chagos Archipelago was declared the world's largest marine reserve in April 2010 with an area of 250,000 square miles until March 2015 when It was declared illegal by the Permanent Court of Arbitration.[10]

Several types of compliant MPA can be distinguished:

IUCN offered seven categories of protected area, based on management objectives and four broad governance types.

Cat IUCN Protected Area Management Categories:
Ia
 Strict nature reserve
A marine reserve usually connotes "maximum protection", where all resource removals are strictly prohibited. In countries such as Kenya and Belize, marine reserves allow for low-risk removals to sustain local communities.
Ib
 Wilderness area
II
 National park
Marine parks emphasize the protection of ecosystems but allow light human use. A marine park may prohibit fishing or extraction of resources, but allow recreation. Some marine parks, such as those in Tanzania, are zoned and allow activities such as fishing only in low risk areas.
III
 Natural monuments or features
Established to protect historical sites such as shipwrecks and cultural sites such as aboriginal fishing grounds.
IV
 Habitat/species management area
Established to protect a certain species, to benefit fisheries, rare habitat, as spawning/nursing grounds for fish, or to protect entire ecosystems.
V
 Protected seascape
Limited active management, as with protected landscapes.
VI
 Sustainable use of natural resources

Related protected area categories include the following;

While "area" refers to a single contiguous location, terms such as "network", "system", and "region" that group MPAs are not always consistently employed."System" is more often used to refer to an individual MPA, whereas "region" is defined by the World Conservation Monitoring Centre as:

"A collection of individual MPAs operating cooperatively, at various spatial scales and with a range of protection levels that are designed to meet objectives that a single reserve cannot achieve."[13]

At the 2004 Convention on Biological Diversity, the agency agreed to use "network" on a global level, while adopting system for national and regional levels. The network is a mechanism to establish regional and local systems, but carries no authority or mandate, leaving all activity within the "system".[14]

No take zones (NTZs), are areas such as New Zealand's marine reserves, where all forms of exploitation are prohibited and severely limits human activities. Generally, a no take zone can cover an entire MPA, or specific portions.

Related terms include; specially protected area (SPA), Special Area of Conservation (SAC), the United Kingdom's marine conservation zones (MCZs),[15] or area of special conservation (ASC) etc. which each provide specific restrictions.

Stressors

Stressors that affect oceans include "the impact of extractive industries, localised pollution, and changes to its chemistry (ocean acidification) resulting from elevated carbon dioxide levels, due to our emissions". MPAs have been cited as the ocean's single greatest hope for increasing the resilience of the marine environment to such stressors.[16] Well-designed and managed MPAs developed with input and support from interested stakeholders can conserve biodiversity and protect and restore fisheries.

Economics

MPAs can help sustain local economies by supporting fisheries and tourism. For example, Apo Island in the Philippines made protected one quarter of their reef, allowing fish to recover, jumpstarting their economy. This was shown in the film, Resources at Risk: Philippine Coral Reef.[17]

Management

Typical MPAs restrict fishing, oil and gas mining and/or tourism. Other restrictions may limit the use of ultrasonic devices like sonar (which may confuse the guidance system of cetaceans), development, construction and the like. Some fishing restrictions include "no-take" zones, which means that no fishing is allowed. Less than 1% of US MPAs are no-take.

Ship transit can also be restricted or banned, either as a preventive measure or to avoid direct disturbance to individual species. The degree to which environmental regulations affect shipping varies according to whether MPAs are located in territorial waters, exclusive economic zones, or the high seas. The law of the sea regulates these limits.

Most MPAs have been located in territorial waters, where the appropriate government can enforce them. However, MPAs have been established in exclusive economic zones and in international waters. For example, Italy, France and Monaco in 1999 jointly established a cetacean sanctuary in the Ligurian Sea named the Pelagos Sanctuary for Mediterranean Marine Mammals. This sanctuary includes both national and international waters. Both the CBD and IUCN recommended a variety of management systems for use in a protected area system. They advocated that MPAs be seen as one of many "nodes" in a network of protected areas.[18] The following are the most common management systems:

Asinara, Italy is listed by WDPA as both a marine reserve and a national marine park, and as such could be labelled 'multiple-use'[19]

Seasonal and temporary management—Activities, most critically fishing, are restricted seasonally or temporarily, e.g., to protect spawning/nursing grounds or to let a rapidly-reducing species recover.

Multiple-use MPAs—These are the most common and arguably the most effective. These areas employ two or more protections. The most important sections get the highest protection, such as a no take zone and are surrounded with areas of lesser protections.

Community involvement and related approaches—Community-managed MPAs empower local communities to operate partially or completely independent of the governmental jurisdictions they occupy. Empowering communities to manage resources can lower conflict levels and enlist the support of diverse groups that rely on the resource such as subsistence and commercial fishers, scientists, recreation, tourism businesses, youths and others.

MPA networks—"A group of MPAs that interact with one another ecologically and/or socially form a network".[20] These networks are intended to connect individuals and MPAs and promote education and cooperation among various administrations and user groups. "MPA networks are, from the perspective of resource users, intended to address both environmental and socio-economic needs, complementary ecological and social goals and designs need greater research and policy support".[20] Filipino communities connect with one another to share information about MPAs, creating a larger network through the social communities' support.[21] Emerging or established MPA networks can be found in Southeast Australia, Belize, the Red Sea, Gulf of Aden and Mexico.[20]

International efforts

The 17th International Union for Conservation of Nature (IUCN) General Assembly in San Jose, California, the 19th IUCN assembly and the fourth World Parks Congress all proposed to centralise the establishment of protected areas. The World Summit on Sustainable Development in 2002 called for

the establishment of marine protected areas consistent with international laws and based on scientific information, including representative networks by 2012.[22]

The Evian agreement, signed by G8 Nations in 2003, agreed to these terms. The Durban Action Plan, developed in 2003, called for regional action and targets to establish a network of protected areas by 2010 within the jurisdiction of regional environmental protocols.It recommended establishing protected areas for 20 to 30% of the world's oceans by the goal date of 2012. The Convention on Biological Diversity considered these recommendations and recommended requiring countries to set up marine parks controlled by a central organization before merging them. The United Nations Framework Convention on Climate Change agreed to the terms laid out by the convention, and in 2004, its member nations committed to the following targets;[23]

Bunaken Marine Park, Indonesia is officially listed as both a marine reserve and a national marine park.[24]
"The establishment by 2010 of terrestrial and by 2012 for marine areas of comprehensive, effectively managed, and ecologically representative national and regional systems of protected areas that collectively, inter alia through a global network, contribute to achieving the three objectives of the Convention and the 2010 target to significantly reduce the current late of biodiversity loss at the global, regional, national, and sub-national levels and contribute to poverty reduction and the pursuit of sustainable development."[25]

The UN later endorsed another decision, Decision VII/15, in 2006:

Effective conservation of 10% of each of the world's ecological regions by 2010.
– United Nations Framework Convention on Climate Change Decision VII/15[26]

Many countries have established national targets, accompanied by action plans and implementations. The UN Council identified the need for countries to collaborate with each other to establish effective regional conservation plans. Some national targets are listed in the table below[27]

Country Plan of action
American Samoa 20% of reefs to be protected by 2010
South Australia 19 marine protected areas by 2010
Bahamas 20% of the marine ecosystem protected for fishery replenishment by 2010.
20% of coastal and marine habitats by 2015.
Belize 20% of bioregions.

30% of Coral reefs.

60% of turtle nesting sites.

30% of Manatee distribution.

60% of American crocodile nesting.

80% of breeding areas.

Chile 10% of marine areas by 2010. National network for organization by 2015.
Cuba 22% of land habitat, including:
15% of the insular shelf
25% of coral reefs
25% of wetlands
Dominican Republic 20% of marine and coastal by 2020.
Micronesia 30% of shoreline ecosystems by 2020.
Fiji 30% of reefs by 2015.

30% of water managed by marine protected areas by 2020.

Germany 38% of water managed by the marine protected network. (no set date)
Grenada 25% of nearby marine resources by 2020.
Guam 30% of nearby marine ecosystem by 2020.
Indonesia 100,000 km2 by 2010.

200,000 km2 by 2020.

Ireland 14% of territorial waters as of 2009[28]
Jamaica 20% of marine habitats by 2020.
Madagascar 100,000 km2 by 2012.
Marshal Islands 30% of nearby marine ecosystem by 2020.
New Zealand 20% of marine environment by 2010.
North Mariana Islands 30% of nearby marine ecosystem by 2020.
Palau 30% of nearby marine ecosystem by 2020.
Peru Marine protected area system established by 2015.
Philippines 10% fully protected by 2020.
Senegal Creation of MPA network. (no set date)
St. Vincent and the Grenadines 20% of marine areas by 2020.
Tanzania 10% of marine area by 2010; 20% by 2020.
United Kingdom Establish an ecologically coherent network of marine protected areas by 2012.
USA – California 29 MPAs covering 18% of state marine area with 243 square kilometres (94 sq mi) at maximum protection.

National efforts

The marine protected area network is still in its infancy. As of October 2010, approximately 6,800 MPAs had been established, covering 1.17% of global ocean area. Protected areas covered 2.86% of exclusive economic zones (EEZs).[29] MPAs covered 6.3% of territorial seas.[30] Many prohibit the use of harmful fishing techniques yet only 0.01% of the ocean's area is designated as a "no take zone".[31] This coverage is far below the projected goal of 20%-30%[32][33] Those targets have been questioned mainly due to the cost of managing protected areas and the conflict that protections have generated with human demand for marine goods and services.[34][35]

Greater Caribbean

The Caribbean region; the UNEP–defined region also includes the Gulf of Mexico. This region is encompassed by the Mesoamerican Barrier Reef System proposal, and the Caribbean challenge
The Gulf of Mexico region (in 3D) is encompassed by the "Islands in the Stream" proposal.

The Greater Caribbean subdivision encompasses an area of about 5,700,000 square kilometres (2,200,000 sq mi) of ocean and 38 nations. The area includes island countries like the Bahamas and Cuba, and the majority of Central America. The Convention for Protection and Development of the Marine Environment of the Wider Caribbean Region (better known as the Cartagena Convention) was established in 1983. Protocols involving protected areas were ratified in 1990. As of 2008, the region hosted about 500 MPAs. Coral reefs are the best represented.

Two networks are under development, the Mesoamerican Barrier Reef System (a long barrier reef that borders the coast of much of Central America), and the "Islands in the Stream" program (covering the Gulf of Mexico).[36]

Southeast Asia

Southeast Asia is a global epicenter for marine diversity. 12% of its coral reefs are in MPAs. The Philippines have some the world's best coral reefs and protect them to attract international tourism. Most of the Philippines' MPAs are established to secure protection for its coral reef and sea grass habitats. Indonesia has MPAs designed for tourism and relies on tourism as a main source of income.[17]

Philippines

The Philippines host one of the most highly biodiverse regions, with 464 reef-building coral species. Due to overfishing, destructive fishing techniques, and rapid coastal development, these are in rapid decline. The country has established some 600 MPAs. However, the majority are poorly enforced and are highly ineffective. However, some have positively impacted reef health, increased fish biomass, decreased coral bleaching and increased yields in adjacent fisheries. One notable example is the MPA surrounding Apo Island.[37]

Latin America

Latin America has designated one large MPA system. As of 2008, 0.5% of its marine environment was protected, mostly through the use of small, multiple-use MPAs.[38]

South Pacific

The South Pacific network ranges from Belize to Chile. Governments in the region adopted the Lima convention and action plan in 1981. An MPA-specific protocol was ratified in 1989. The permanent commission on the exploitation and conservation on the marine resources of the South Pacific promotes the exchange of studies and information among participants.[38]

The region is currently running one comprehensive cross-national program, the Tropical Eastern Pacific Marine Corridor Network, signed in April 2004. The network covers about 211,000,000 square kilometres (81,000,000 sq mi).[38]

One alternative to imposing MPAs on an indigenous population is through the use of Indigenous Protected Areas, such as those in Australia.

North Pacific

The North Pacific network covers the western coasts of Mexico, Canada, and the U.S. The "Antigua Convention" and an action plan for the north Pacific region were adapted in 2002. Participant nations manage their own national systems.[38] In 2010-2011, the State of California completed hearings and actions via the state Department of Fish and Game to establish new MPAs.

United States and Pacific Island Territories

President Barack Obama signed a proclamation on September 25, 2014, designating the world's largest marine reserve. The proclamation expanded the existing Pacific Remote Islands Marine National Monument, one of the world's most pristine tropical marine environments, to six times its current size, encompassing 490,000 square miles (1,300,000 km2) of protected area around these islands. Expanding the Monument protected the area's unique deep coral reefs and seamounts.[39]

Diagram illustrating the orientation of the 3 marine sanctuaries of Central California: Cordell Bank, Gulf of the Farallones, and Monterey Bay. Davidson Seamount, part of the Monterey Bay sanctuary, is indicated at bottom-right.

In April 2009, the US established a United States National System of Marine Protected Areas, which strengthens the protection of US ocean, coastal and Great Lakes resources. These large-scale MPAs should balance "the interests of conservationists, fishers, and the public."[20] As of 2009, 225 MPAs participated in the national system. Sites work together toward common national and regional conservation goals and priorities. NOAA's national marine protected areas center maintains a comprehensive inventory[40] of all 1,600+ MPAs within the US exclusive economic zone. Most US MPAs.allow some type of extractive use. Fewer than 1% of U.S. waters prohibit all extractive activities.[41]

In 1981 Olympic National Park became a marine protected area. The total protected site area is 3,697 square kilometres (1,427 sq mi). 173.2 km2 of the area was an MPA.[42] The national system is a mechanism to foster MPA collaboration.[43] Sites that meet pertinent criteria are eligible to join the national system. Four entry criteria govern admission:

In 1999, California adopted the Marine Life Protection Act, establishing the first state law requiring a comprehensive, science-based MPA network. The state created the Marine Life Protection Act Initiative. The MLPA Blue Ribbon Task Force and stakeholder and scientific advisory groups ensure that the process uses the science and public participation.

The MLPA Initiative established a plan to create California's statewide MPA network by 2011 in several steps. The Central Coast step was successfully completed in September, 2007. The North Central Coast step was completed in 2010. The South Coast and North Coast steps were expected to go into effect in 2012.[44]

United Kingdom and British Overseas Territories

The United Kingdom is responsible for 6.8 million square kilometres of ocean around the world, larger than all but four other countries.[45] There are a number of marine protected areas around the coastline of the United Kingdom.[46][47][48] The UK is also creating marine protected reserves around several British Overseas Territories.

The Chagos Marine Protected Area in the Indian Ocean was established in 2010 as a "no-take-zone". With a total surface area of 640,000 square kilometres (247,000 square miles), it is the world's largest contiguous marine reserve.[49][50]

In March 2015, the UK announced the creation of a marine reserve around the Pitcairn Islands in the Southern Pacific Ocean to protect its special biodiversity. The area of 830,000 square kilometers (322,000 square miles) will make it the world's largest contiguous marine reserve.[5][51]

In January 2016, the UK government announced the intention to create a marine protected area around Ascension Island. The protected area will be 234,291 square kilometers, half of which will be closed to fishing.[52]

Europe

The Natura 2000 ecological MPA network in the European Union included MPAs in the North Atlantic, the Mediterranean Sea and the Baltic Sea. The member states had to define NATURA 2000 areas at sea in their Exclusive Economic Zone.

Two assessments, conducted thirty years apart, of three Mediterranean MPAs, demonstrate that proper protection allows commercially valuable and slow-growing red coral (Corallium rubrum) to produce large colonies in shallow water of less than 50 metres (160 ft). Shallow-water colonies outside these decades-old MPAs are typically very small. The MPAs are Banyuls, Carry-le-Rouet and Scandola, off the island of Corsica.[53]

Notable marine protected areas

Assessment

The Prickly Pear Cays are a marine protected area. They're about six miles from Road Bay, Anguilla, in the Leeward Islands of the Caribbean.

Managers and scientists use geographic information systems and remote sensing to map and analyze MPAs. NOAA Coastal Services Center compiled an "Inventory of GIS-Based Decision-Support Tools for MPAs." The report focuses on GIS tools with the highest utility for MPA processes.[41] Remote sensing uses advances in aerial photography image capture, pop-up archival satellite tags, satellite imagery, acoustic data, and radar imagery.

Coral reefs

Coral reef systems have been in decline worldwide. Causes include overfishing, pollution and ocean acidification. As of 2013 30% of the world's reefs were severely damaged. Approximately 60% will be lost by 2030 without enhanced protection.[59] Marine reserves with "no take zones" are the most effective form of protection.[60] Only about 0.01% of the world's coral reefs are inside effective MPAs.[61]

Fish

MPAs can be an effective tool to maintain fish populations. The general concept is to create overpopulation within the MPA. The fish expand into the surrounding areas to reduce crowding, increasing the population of unprotected areas.[62] This helps support local fisheries in the surrounding area, while maintaining a healthy population within the MPA. Such MPAs are most commonly used for coral reef ecosystems.

One example is at Goat Island Bay in New Zealand, established in 1977. Research gathered at Goat Bay documented the spillover effect. "Spillover and larval export—the drifting of millions of eggs and larvae beyond the reserve—have become central concepts of marine conservation". This positively impacted commercial fishermen in surrounding areas.[63]

Another unexpected result of MPAs is their impact on predatory marine species, which in some conditions can increase in population. When this occurs, prey populations decrease. One study showed that in 21 out of 39 cases, "trophic cascades," caused a decrease in herbivores, which led to an increase in the quantity of plant life. (This occurred in the Malindi Kisite and Watamu Marian National Parks in Kenya; the Leigh Marine Reserve in New Zealand; and Brackett's Landing Conservation Area in the US.[64]

Success criteria

Both CBD and IUCN have criteria for setting up and maintaining MPA networks, which emphasize 4 factors:[65]

Misconceptions

Misconceptions about MPAs include the belief that all MPAs are no-take or no-fishing areas. However, less than 1 percent of US waters are no-take areas. MPA activities can include consumption fishing, diving and other activities.

Another misconception is that most MPAs are federally managed. Instead, MPAs are managed under hundreds of laws and jurisdictions. They can be exist in state, commonwealth, territory and tribal waters.

Another misconception is that a federal mandate dedicates a set percentage of ocean to MPAs. Instead the mandate requires an evaluation of current MPAs and creates a public resource on current MPAs.[66]

Criticism

Some existing and proposed MPAs have been criticized by indigenous populations and their supporters, as impinging on land usage rights. For example, the proposed Chagos Protected Area in the Chagos Islands is contested by Chagossians deported from their homeland in 1965 by the British as part of the creation of the British Indian Ocean Territory (BIOT). According to Wikileaks CableGate documents,[67] the UK proposed that the BIOT become a "marine reserve" with the aim of preventing the former inhabitants from returning to their lands and to protect the joint UK/US military base on Diego Garcia Island.

Other critiques include: their cost (higher than that of passive management), conflicts with human development goals, inadequate scope to address factors such as climate change and invasive species.[34]

Recent research

The larvae of the yellow tang can drift more than 100 miles and reseed in a distant location.[68]

In 2010, one study found that fish larvae can drift on ocean currents and reseed fish stocks at a distant location. This finding demonstrated that fish populations can be connected to distant locations through the process of larval drift.[68]

They investigated the yellow tang, because larva of this species stay in the general area of the reef in which they first settle.[69] The tropical yellow tang is heavily fished by the aquarium trade. By the late 1990s, their stocks were collapsing. Nine MPAs were established off the coast of Hawaii to protect them. Larval drift has helped them establish themselves in different locations, and the fishery is recovering.[69] "We've clearly shown that fish larvae that were spawned inside marine reserves can drift with currents and replenish fished areas long distances away," said coauthor Mark Hixon.[69]

See also

References

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  63. ↑ Warne, Kennedy. "Saving the Sea's Bounty"] National Geographic. April 2007.
  64. ↑ MPA News, Vol. 6 No. 1, July 2004
  65. ↑ Wells et al. 2008, p. 17 The International Union for Conservation of Nature defines a protected area as:
    "A clearly defined geographical space, recognized, dedicated, and managed, through legal or effective means, to achieve the long-term conservation of nature with associated ecosystem service and cultural value."
  66. ↑ Archived February 15, 2013, at the Wayback Machine.
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  69. 1 2 3 Drifting Fish Larvae Allow Marine Reserves to Rebuild Fisheries ScienceDaily , 26 December 2010.

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