| Title | The Okhotsk Sea coastal lagoons; types, evolution and use of resources |
| Author | Brovko, P.F. |
| Author Affil | Brovko, P.F., Far Fast National University, Vladivostok, Russian Federation |
| Source | PICES Scientific Report, No.36, p.191- 193, ; Fourth workshop on the Okhotsk Sea and adjacent areas, Abashiri, Japan, Aug. 27-29, 2008, edited by M. Kashiwai and G.A. Kantakov. Publisher: North Pacific Marine Science Organization (PICES), Sidney, BC, Canada. ISSN: 1198-273X. ISBN: 1-897176- 6 |
| Publication Date | 2009 |
| Notes | In English. 14 refs. GeoRef Acc. No: 299871 |
| Index Terms | environmental effects; geomorphology; human activity; coastal topographic features; Okhotsk Sea; Russia--Russian Far East; Asia; coastal environment; Commonwealth of Independent States; conservation; lagoons; landform evolution; natural resources; North Pacific; Northwest Pacific; Pacific Ocean; protection; Russian Far East; Russian Federation; shore features; spatial distribution; West Pacific |
| Abstract | As part of the Okhotsk Sea, but separated from it by a depositional feature, lagoons have a particular hydrology and specific conditions for bottom sediment accumulation. Marine organisms in lagoons can be exposed to water temperature and salinity fluctuations of significant range. The Okhotsk Sea lagoons are grouped by size into large (100-500 km2), medium (10-100 km2), small (1-10 km2) and very small (less than 1 km2) ones. The largest lagoons in terms of area are Baikal, Schastya, Piltun, and Perevolochnaya. Many small lagoons are linked to river estuaries. In terms of water depth, lagoons are grouped into shallow (less than 1 m deep), medium-depth (1-5 m), deep (5-20 m) and very deep (more than 20 m) ones. The evolution of Okhotsk Sea lagoons is associated with the Holocene transgression, during which time they came into existence. As evidenced by well-studied coastal-marine depositions, large sea water bodies, separated by sand banks and morphologically close to modern lagoons, started to form at a higher level in the sub-boreal period. During subsequent sea level fluctuations above the present-day level, the inner shoreline contour of lagoons was reshaping. Today, some lagoons are separated from the sea, partly filled with alluvial-marine, eolian, and biogenic depositions and have turned into lakes. Lagoons are used as harbors for sheltering small fishing and transport vessels. Some lagoons are used for aquaculture farms where fish, seaweeds, and scallops are cultivated. Lagoons are also a convenient recreational resource for developing sports, tourism, health cures and recreation. The best-studied lagoons of the Okhotsk Sea are Nabil, Chayvo, Busse, and Saroma. |
| Publication Type | conference paper or compendium article |
| Record ID | 64004617 |