Chesapeake Bay Anoxia: Origin, Development, and Significance

Anoxia occurs annually in deeper waters of the central portion of the Chesapeake Bay and presently extends from Baltimore to the mouth of the Potomac estuary. This condition, which encompasses some 5 billion cubic meters of water and lasts from May to September, is the result of increased stratification of the water column in early spring, with consequent curtailment of reoxygenation of the bottom waters across the halocline, and benthic decay of organic detritus accumulated from plankton blooms of the previous summer and fall. The Chesapeake Bay anoxia appears to have had significant ecological effects on many marine species, including several of economic importance.

[1]  J. L. Taft,et al.  Seasonal oxygen depletion in Chesapeake Bay , 1980 .

[2]  C L Newcombe,et al.  OXYGEN-POOR WATERS OF THE CHESAPEAKE BAY. , 1938, Science.

[3]  C. Hall,et al.  A benthic chamber for intensely metabolic lotic systems , 1979 .

[4]  M. M. Pamatmat.  Oxygen Consumption by the Seabed. VI. Seasonal Cycle of Chemical Oxidation and Respiration in Puget Sound , 1971 .

[5]  J. McCarthy,et al.  Significance of nanoplankton in the Chesapeake Bay estuary and problems associated with the measurement of nanoplankton productivity , 1974 .

[6]  D. R. Heinle,et al.  A comparison by size class and volume of detritus versus phytoplankton in Chesapeake Bay , 1978 .

[7]  B. Hofsten,et al.  Oxygen uptake of bottom sediments studied in situ and in the laboratory , 1973 .

[8]  A. Holland,et al.  Temporal variation in upper bay mesohaline benthic communities: I. The 9-m mud habitat , 1977 .

[9]  A. Holland,et al.  Identification and description of macrobenthic communities in the calvert cliffs region of the Chesapeake Bay , 1977 .

[10]  L. Haas.  The effect of the spring-neap tidal cycle on the vertical salinity structure of the James, York and Rappahannock Rivers, Virginia, U.S.A.☆ , 1977 .

[11]  H. Seliger,et al.  Annual subsurface transport of a red tide dinoflagellate to its bloom area: Water circulation patterns and organism distributions in the Chesapeake Bay 1 , 1978 .

[12]  B. Hargrave.  SIMILARITY OF OXYGEN UPTAKE BY BENTHIC COMMUNITIES1 , 1969 .

[13]  Y. Maita,et al.  Production and decomposition of particulate organic matter in Funka Bay, Japan , 1978 .

[14]  C. Davis,et al.  FORMATION OF RESTING SPORES BY LEPTOCYLINDRUS DANICUS (BACILLARIOPHYCEAE) IN A CONTROLLED EXPERIMENTAL ECOSYSTEM 1 , 1980 .

[15]  Mario M. Pamatmat,et al.  OXYGEN CONSUMPTION BY THE SEABED IV. SHIPBOARD AND LABORATORY EXPERIMENTS1 , 1971 .

[16]  R. W. Edwardś,et al.  OXYGEN CONSUMPTION OF RIVER MUDS , 1965 .

[17]  L. Eugene Cronin,et al.  Estuaries and Nutrients , 1981, Contemporary Issues in Science and Society.

[18]  J. Davies,et al.  Energy flow through the benthos in a Scottish Sea Loch , 1975 .

[19]  K. Smith.  Respiration of a Sublittoral Community , 1973 .

[20]  R. B. Biggs,et al.  The flux of particulate carbon in an estuary , 1972, Marine Biology.