The Samar Sea is a small sea within the

Philippine The Philippines, officially the Republic of the Philippines, is an Archipelagic state, archipelagic country in Southeast Asia. Located in the western Pacific Ocean, it consists of List of islands of the Philippines, 7,641 islands, with a tot ...

archipelago, situated between the

Bicol Region The Bicol Region, designated as Region V, is an administrative region of the Philippines. It comprises six Provinces of the Philippines, provinces, four on the Bicol Peninsula (the luzon#Southeastern Luzon, southeastern end of Luzon): Albay, Ca ...

Luzon Luzon ( , ) is the largest and most populous List of islands in the Philippines, island in the Philippines. Located in the northern portion of the List of islands of the Philippines, Philippine archipelago, it is the economic and political ce ...

and the

Eastern Visayas Eastern Visayas (; ; ; ) is an administrative region in the Philippines, designated as Region VIII. It consists of three main islands: Samar, Leyte, and Biliran. The region has six provinces: Biliran, Leyte, Northern Samar, Samar, Easte ...

. It is bordered by the islands of

Samar Samar ( ) is the third-largest and seventh-most populous island in the Philippines, with a total population of 1,909,537 as of the 2020 census. It is located in the eastern Visayas, which are in the central Philippines. The island is divided in ...

to the east,

Leyte Leyte ( ) is an island in the Visayas group of islands in the Philippines. It is eighth-largest and sixth-most populous island in the Philippines, with a total population of 2,626,970 as of 2020 census. Since the accessibility of land has been ...

to the south,

Masbate Masbate, officially the Province of Masbate (Masbateño language, Masbateño: ''Probinsya san Masbate''; ), is an island Provinces of the Philippines, province in the Philippines located near the midsection of the nation's archipelago. Its provi ...

to the west, and Luzon to the north. The sea is connected to the

Philippine Sea The Philippine Sea is a List of seas#Marginal seas by ocean, marginal sea of the Pacific Ocean, Western Pacific Ocean east of the list of islands of the Philippines, Philippine Archipelago (hence the name) and the List of seas#Largest seas ...

to the north via

San Bernardino Strait The San Bernardino Strait () is a strait in the Philippines, connecting the Samar Sea with the Philippine Sea. It separates the Bicol Peninsula of Luzon from Samar (island), Samar of Visayas. History During an ill-fated expedition, only one ship ...

, to Leyte Gulf to the southeast via San Juanico Strait, to the

Visayan Sea The Visayan Sea is a sea in the Philippines surrounded by the islands of the Visayas. It is bounded by the islands Masbate to the north, Panay to the west, Leyte to the east, and Cebu and Negros to the south. The sea is connected to severa ...

to the southwest, and to the

Sibuyan Sea The Sibuyan Sea is a small sea in the Philippines separating Luzon and the Visayas. It is bounded by the island of Panay to the south, Mindoro to the west, Masbate to the east, and to the north Marinduque and the Bicol Peninsula of Luzon. ...

to the northwest via Masbate Pass and Ticao Pass. It contains

Biliran Biliran, officially the Province of Biliran (Waray language, Waray-Waray: ''Probinsya han Biliran''; ; ), is an island province in the Philippines located in the Eastern Visayas Regions of the Philippines, region (Region VIII). Biliran is one of ...

Island, the islands of Almagro,

Maripipi Maripipi, officially the Municipality of Maripipi (; ; ), is a municipality in the province of Biliran, Philippines. According to the 2020 census, it has a population of 6,373 people, making it the least populated town in the province. The town' ...

, Sto. Nino, Daram, and Tagapul-an. The Samar Sea has experienced a significant degradation of marine resources, that is even characterized as "

ecocide Ecocide (from Greek 'home' and Latin 'to kill') is the destruction of the natural environment, environment by humans. Ecocide threatens all human populations that are dependent on natural resources for maintaining Ecosystem, ecosystems and ensu ...

". Before 1981, there were 50 commercial fish species, but within 10 years, it was reduced to only 10 due to

overfishing Overfishing is the removal of a species of fish (i.e. fishing) from a body of water at a rate greater than that the species can replenish its population naturally (i.e. the overexploitation of the fishery's existing Fish stocks, fish stock), resu ...

and destructive fishing methods (like dynamite fishing). Average daily catch has reduced from 30 kg/day in the 1960s, to 8 kg/day in 1981, to 3.5 kg/day in 1991. Having depleted the large predatory fish, fishermen turned to smaller species, allowing jellyfish populations to explode.

Deforestation Deforestation or forest clearance is the removal and destruction of a forest or stand of trees from land that is then converted to non-forest use. Deforestation can involve conversion of forest land to farms, ranches, or urban use. Ab ...

of surrounding lands has led to increased silt from denuded mountains that choke coral reefs. Only some 5% of reefs are considered to be in a healthy condition. Another result of the increased silt are

red tide A harmful algal bloom (HAB), or excessive algae growth, sometimes called a red tide in marine environments, is an algal bloom that causes negative impacts to other organisms by production of natural algae-produced toxins, water deoxygenation, ...

s, causing

paralytic shellfish poisoning Paralytic shellfish poisoning (PSP) is one of the four recognized syndromes of shellfish poisoning, which share some common features and are primarily associated with bivalve mollusks (such as mussels, clams, oysters and scallops). These shellfi ...

s. The first red tide in the Philippines occurred in the Samar Sea in 1983 and thereafter continued to occur at irregular intervals.

References

{{List of Philippine seas Seas of the Philippines Geography of the Visayas Maritime Southeast Asia