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Download Ecological Studies in the Middle Reach of Chesapeake Bay: by Kevin G. Sellner, Betty Ann Peters (auth.), Kenneth L. Heck PDF

By Kevin G. Sellner, Betty Ann Peters (auth.), Kenneth L. Heck Jr. (eds.)

The choice to construct a nuclear energy plant at Calvert Cliffs at the western shore of the Chesapeake Bay in southern Maryland led to a Iandmark felony determination (Calvert Cliffs Coordinating Committee vs Atomic strength fee) and started one ofthe mostintensive long term experiences ever conducted in an American estuarine procedure. within the pages that keep on with we describe the main effects and findings from experiences performed over greater than a decade by means of scientists from The Academy of ordinary Seiences of Philadelphia (ANSP). those reports have been designed to evaluate the capability results that operation ofthe Calvert Cliffs Nuclear strength Plant (CCNPP) may have at the mid-portion of Chesapeake Bay. The process taken used to be to review significant biotic elements of the method over a space and a period of time adequate to permit comparability of stipulations among preoperational and operational sessions inside a sampling locality, and comparisons of stipulations at reference websites with these at effect websites afterplant operations all started. Elementschosen for designated research incorporated: species composition and construction premiums of significant basic manufacturers; water chemistry; zooplankton, benthos and finfish abundance and species composition; the abundance and progress charges of commercially very important shellfish (clams, oysters and blue crabs); and the colonization sequences of invertebrates on man made substrates.

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Additional info for Ecological Studies in the Middle Reach of Chesapeake Bay: Calvert Cliffs

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Silicate is supplied via fluvial input in the winter. , 1983; Yamada and D'Elia, 1984). The ''boom-bust" cycling of diatoms in the winter-spring (Fig. 6) probably provides the large supply of readily solubilized biogenic silica required for regeneration in the bottom sediments. 6 1976 1977 1978 1978 1980 Mean surface diatom densities (--, cells X 106 L-1) and Silicate- Si concentrations (----, pM) in the vicinity ofCalvert Cliffs, MD from 1975-1980. Zooplankton Grazing. , 1983) and the Patuxent River estuary, a sub-estuary of Chesapeake Bay (Heinle and Flemer, 1975).

No samples were collected in January 1977 and February 1979. 1976 1977 1978 1979 1980 Coper;r naup ii Jan Feh Mar Apr May Jun Jul Aug Sep Oct Nov Dec 914 1447 6916 6480 42 321 7820 4036 4440 549 760 1358 (420) (1034) (594) (4904) (62) (241) (11621) (3887) (3440) (392) (414) (350) 263 1069 19931 4337 1533 5880 25133 6654 3648 366 1932 (251) (757) (11824) 13448) 1850) (3689) (13316) (3380) (1675) (426) (1137) 1280 224 1123 10070 3008 7663 9224 9122 61404 1643 415 834 (533) (189) (541) 13620) (1361) 15112) 15194) 110268) (40993) (2611) 1563) (1144) 1901) 1214) (580) (480) (83) (372) (4441) (4948) (2927) (108) (320) (889) 16 46 178 720 1231 9369 21840 7167 675 111 589 120) 141) (231) (801) (1197) (8038) (20431) (4076) (454) (174) (354) 559 183 899 150 300 3809 1351 5459 18769 1460 343 286 1324) (105) (402) (128) 1379) (2779) (1235) (6325) (23765) (2130) (403) (445) (826) (264) (296) (304) (43) (107) (11460!

In 1976 and 1977 replicated samples (3) were collected at sur ace, 5-m, and 10-m depth at two (1976) or three 1977 stations using a pump sampler and a 73-pm concentrating net; from 1978 through 1980, sin~le samples were collected at the three depths at six stations. Standar deviations shown in parentheses. No samples were collected in January 1977 and February 1979. 1976 1977 1978 1979 1980 Coper;r naup ii Jan Feh Mar Apr May Jun Jul Aug Sep Oct Nov Dec 914 1447 6916 6480 42 321 7820 4036 4440 549 760 1358 (420) (1034) (594) (4904) (62) (241) (11621) (3887) (3440) (392) (414) (350) 263 1069 19931 4337 1533 5880 25133 6654 3648 366 1932 (251) (757) (11824) 13448) 1850) (3689) (13316) (3380) (1675) (426) (1137) 1280 224 1123 10070 3008 7663 9224 9122 61404 1643 415 834 (533) (189) (541) 13620) (1361) 15112) 15194) 110268) (40993) (2611) 1563) (1144) 1901) 1214) (580) (480) (83) (372) (4441) (4948) (2927) (108) (320) (889) 16 46 178 720 1231 9369 21840 7167 675 111 589 120) 141) (231) (801) (1197) (8038) (20431) (4076) (454) (174) (354) 559 183 899 150 300 3809 1351 5459 18769 1460 343 286 1324) (105) (402) (128) 1379) (2779) (1235) (6325) (23765) (2130) (403) (445) (826) (264) (296) (304) (43) (107) (11460!

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