blackwater river
A blackwater river is a type of river with a slow-moving channel flowing through forested swamps or wetlands. As vegetation decays, tannins leach into the water, making a transparent, acidic water that is darkly stained, resembling black tea ...
, close to 48 mi (77 km) long, on the coastal plain of southeast
North Carolina
North Carolina () is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. The state is the List of U.S. states and territories by area, 28th largest and List of states and territories of the United ...
in the
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
. It empties in the
Atlantic Ocean
The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe ...
.
Course
It rises in the
White Oak Pocosin
The White Oak Pocosin is a large swamp in northern Onslow County and southern Jones County, North Carolina in the United States. It provides the headwaters of the White Oak River. The word pocosin
A pocosin is a type of palustrine wetland w ...
Jacksonville
Jacksonville is a city located on the Atlantic coast of northeast Florida, the most populous city proper in the state and is the List of United States cities by area, largest city by area in the contiguous United States as of 2020. It is the co ...
. It flows east, then SSE, along the border between Onslow, Jones and Carteret counties, and forming the western boundary of
Croatan National Forest
The Croatan National Forest () , from the North Carolina Collection's website at the
tidal estuary
An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environment ...
, approximately 1.6 km wide. It enters the Atlantic at
Bogue Sound
Bogue Sound is a lagoon in the state of North Carolina separating the Bogue Banks, a barrier island, from the mainland. The sound is part of North Carolina's "Crystal Coast", a tourism marketing term that is also used interchangeably with the ter ...
, then passes between two barrier islands (
Bogue Banks
Bogue Banks form a barrier island off the mainland of North Carolina in Carteret County. The island, separated from the mainland by Bogue Sound, runs east to west, with the ocean beaches facing due south. Bogue Banks is the only island on the Ca ...
Bogue Inlet
Bogue Banks form a barrier island off the mainland of North Carolina in Carteret County. The island, separated from the mainland by Bogue Sound, runs east to west, with the ocean beaches facing due south. Bogue Banks is the only island on the C ...
into the open Atlantic at
Onslow Bay
Onslow Bay is an indentation of the North Carolina coast, between Cape Fear in the south and Cape Lookout in the north. Thirteen barrier islands form the shore of the bay. It is part of the open Atlantic Ocean
The Atlantic Ocean is the sec ...
.
Habitat
The White Oak River runs through a variety of
habitats
In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...
including
swamps
A swamp is a forested wetland.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p. Swamps are considered to be transition zones because both land and water play a role in ...
, hardwood forests, and salt marsh flats. A wide variety of
wildlife
Wildlife refers to undomesticated animal species, but has come to include all organisms that grow or live wild in an area without being introduced by humans. Wildlife was also synonymous to game: those birds and mammals that were hunted ...
can be found in and around the river and its smaller river feeders. These creeks provide safe havens for many small animals such as,
fish
Fish are Aquatic animal, aquatic, craniate, gill-bearing animals that lack Limb (anatomy), limbs with Digit (anatomy), digits. Included in this definition are the living hagfish, lampreys, and Chondrichthyes, cartilaginous and bony fish as we ...
,
snakes
Snakes are elongated, limbless, carnivorous reptiles of the suborder Serpentes . Like all other squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales. Many species of snakes have skulls with several more j ...
,
frogs
A frog is any member of a diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura (ανοὐρά, literally ''without tail'' in Ancient Greek). The oldest fossil "proto-frog" '' Triadobatrachus'' is ...
and many more animal as well as plant life. Along the river, there are reports of
bald cypress
''Taxodium distichum'' (bald cypress, swamp cypress; french: cyprès chauve;
''cipre'' in Louisiana) is a deciduous conifer in the family Cupressaceae. It is native to the southeastern United States. Hardy and tough, this tree adapts to a wide ...
trees over one thousand years of age. Many
alligators
An alligator is a large reptile in the Crocodilia order in the genus ''Alligator'' of the family Alligatoridae. The two extant species are the American alligator (''A. mississippiensis'') and the Chinese alligator (''A. sinensis''). Additionall ...
can be found along the river.
In 2016, scientists from Uppsala University reported a new class of archaean microbes with rare chemosynthetic properties, ''
Hadesarchaea
Hadesarchaea, formerly called the South-African Gold Mine Miscellaneous Euryarchaeal Group, are a class of thermophile microorganisms that have been found in deep mines, hot springs, marine sediments and other subterranean environments.
Nomencla ...
'', living in hot, low-oxygen environments near White Oak River. In the same year, a
University of Texas
The University of Texas at Austin (UT Austin, UT, or Texas) is a public research university in Austin, Texas. It was founded in 1883 and is the oldest institution in the University of Texas System. With 40,916 undergraduate students, 11,075 ...
-led team discovered a new archaen phylum, ''
Thorarchaeota
"''Candidatus'' Thorarchaeota", or simply Thorarchaeota, is a phylum within the superphylum Asgard archaea. The Asgard superphylum represents the closest prokaryotic relatives of eukaryotes. Since there is such a close relation between the two ...
'', from samples taken from the White Oak River estuary.