The unhealthy lagoons contain abundance of fish.
Logwood forests fringe all the lagoons and many parts of the seaboard, which are flooded during the rainy season.
Such are the various coast lagoons, formed at the mouths of streams ' See A.
South of the Bermejo the land is more elevated and drier, though large depressions covered with marshy lagoons are to be found, similar to those farther north.
Before its annexation by Germany the lagoons were a favourite resort of slavers, and stations were established there by Portuguese, British, French and German traders.
Besides the delta of the Po and the large marshy tracts which it forms, there exist on both sides of it extensive lagoons of salt water, generally separated from the Adriatic by narrow strips of sand or embankments, partly natural and partly artificial, but havin openings which admit the influx and efflux of the sea-water, and serve as ports for communication with the mainland.
The best known and the most extensive of these lagoons is that in which Venice is situated, which extends from Torcello in the north to Chioggia and Brondolo in the south, a distance of above 40 m.; but they were formerly much more extensive, and afforded a continuous means of internal navigation, by what were called "the Seven Seas" (Septem Maria), from Ravenna to Altinum, a few miles north of Torcello.
The so-called lakes on the coast of the Adriatic north and south of the promontory of Gargano are brackish lagoons communicating with the sea.
The site is protected by lagoons, the salt from which was one of the sources of its prosperity.
By this time the alteration of the coast-line and the filling up of the lagoons had probably commenced, and no historical importance attaches to its subsequent fortunes.
Augustus is said to have conducted here a colony of veterans,' but the place never had any great importance, and the lagoons behind it made it unhealthy, though the construction of the Via Domitiana through it must have made it a posting station.
In process of time some of these banks, as in the case of Venice, raised themselves above the level of the water and became the true shore-line, while behind them lay large surfaces of water, called lagoons, formed partly by the fresh water brought down by the rivers, partly by the salt-water tide which found its way in by the channels of the river mouths.
That she retained her independence so long was due to a double accident: the impregnability of the lagoons and the jealousies of the great powers.
It is also, especially on the east, lined by lagoons which communicate with the lake by intricate channels.
The lagoons are believed to act as purifying pans in which the greater part of the salt in the water is precipitated.
The elevated plateaus between these ranges are semiarid and inhospitable, and are covered with extensive saline basins, which become lagoons in the wet season and morasses or dry saltpans in the dry season.
To the great lagoons and morasses between 36° and 37° S.
Other small rivers rising in the Cordoba sierras are the Primero and Segundo, which flow into the lagoons of north-east Cordoba, and the Quinto, which flows south-easterly into the lagoons and morasses of southern Cordoba.
The lakes of Argentina are exceptionally numerous, although comparatively few are large enough to merit a name on the ordinary general map. They vary from shallow, saline lagoons in the north-western plateaus, to great, picturesque, snow-fed lakes in the Andean foothills of Patagonia.
In the northern part of Corrientes there is a large area of swamps and shallow lagoons which are believed to be slowly drying up.
Immense flocks of gulls were probably attracted to it then as now by its insect life, and its lagoons and streams teemed with aquatic birds.
Seaboard.The shore of the Mediterranean encircling the Gulf of the Lion (Golfe du Lion) from Cape Cerbera to Martigues is lowlying and unbroken, and characterized chiefly by lagoons separated from the sea by sand-dunes.
Along the Atlantic coast from the mouth of the Adour to the estuary of the Gironde there stretches a monotonous line of sanddunes bordered by lagoons on the land side, but towards the sea harbourless and unbroken save for the Bay of Arcachon.
The sea produces three different seals, which often ascend rivers from the coast, and can live in lagoons of fresh water; many cetaceans, besides the " right whale " and sperm whale; and the dugong, found on the northern shores, which yields a valuable medicinal oil.
In length to be met with in the shallow lagoons of the interior of the Northern Territory.
It masks a series of lagoons, of which the largest, occupying a central position, is called the Togo, Avon or Haho lagoon.
Behind the lagoons an undulating plain stretches some 50 m.
The lagoons are surrounded by dense belts of reeds, and the coast-land is covered with low, impenetrable bush.
The tract adjoining this long line of lagoons is, like the basin of the Po, a broad expanse of perfectly level alluvial plain, extending from the Adige eastwards to the Carnic Alps, where they approach close to the Adriatic between Aquileia and Trieste, and northwards to the foot of the great chain, which here sweeps round in a semicircle from the neighborhood of Vicenza to that of Aquileia.
Of freshwater fish the trout of the mountain streams and the eels of the coast lagoons may be mentioned.
The unproductive area comprises 16% of the total area (this includes 4% occupied by lagoons or marshes, and I75% of the total area susceptible of bonificazione or improvement by drainage.
These last are also found in the coast lagoons and sometimes are of great size.
Mangrove swamps, lagoons and marshes, with inland canals following the coast line for long distances, are characteristic features of a large extent of the Brazilian coast.
The coastal plain is also intersected by lagoons, lakes and inland channels formed by uplifted beaches.
Toward the Rio Grande, and the coastal zone is sandy, much broken by lagoons and uninhabited.
A peculiar feature of the hydrography of Tamaulipas is the series of coastal lagoons formed by the building of new beaches across the indentations of the coast.
The water in shallow seas, off the shores of islands or in lagoons, is saturated with calcium bicarbonate and if the amount of carbonic acid in solution be reduced by any means, normal carbonate must be precipitated.
There are, therefore, a number of agencies, all of which operate in shoal waters on the lee side of islands, or in shallow lagoons in such regions as the Bahamas, and the result of all these is to throw down calcium carbonate from solution in sea-water as minute needle-shaped crystals or little balls of aragonite.
With the exception of the Dra'a, the streams rising on the side of the range facing the Sahara do not reach the sea, but form marshes or lagoons at one season, and at another are lost in the dry soil of the desert.
There is an extensive swampy lagoon in Eleuthera, the water of which is fresh or nearly so; and brackish lagoons also occur, as in Watling Island.
First come the coast lagoons, many of which are merely land-locked salt-water bays, the waters of which rise and fall with the tides.
Along much of the western coast and along nearly the whole of the eastern coast extends a line of sand reefs and narrow islands, enclosing shallow and narrow bodies of water, such as Indian river and Lake Worth - called rivers, lakes, lagoons, bays and harbours.