Number Page 



15 Numbers of ichthyoplankton taken at various stations within the 

 Apalachicola estuary 48 



16 Invertebrates taken in cores, leaf-baskets, dredge nets, and otter 



trawls in the Apalachicola Bay system (1975-1983) 50 



17 General abundance information and natural history notes for the 



dominant organisms in the Apalachicola estuary 56 



18 Fishes and invertebrates commonly taken with seines in oligohaline and 

 mesohaline marshes of the Apalachicola estuary 61 



19 Epibenthic fishes and invertebrates in the Apalachicola estuary from 



1972 through 1982 63 



20 Epibenthic fishes and invertebrates in the Apalachicola estuary from 



June 1972 to May 1977 66 



21 Factor analysis of physico-chemical variables in the Apalachicola system 

 taken monthly from March 1972 to February 1976 81 



22 Correlation coefficients of linear regressions of nitrate, 

 orthophosphate, silicate, and ammonia on salinity 82 



23 Results of a stepwise regression analysis of various independent 

 parameters and species (population) occurrence in the Apalachicola 



estuary from March 1972 to February 1975 84 



24 Parametric and nonparametric correlations of seasonal variations of 



blue crab frequencies and abiotic variables 93 



25 Multiple stepwise regression of seasonal variations of frequencies of 



blue crabs of three size groups and selected abiotic variables 93 



26 Land use inventory of the Apalachicola River basin 102 



27 Approximate dimensions of selected estuarine systems 113 



28 Estimates of particulate primary production in various estuaries in 



the Uni ted States 113 



29 Approximate land use distribution and population density surrounding the 

 estuarine study areas 114 



30A Approximate annual input from land drainage and point source discharge 

 of dissolved inorganic nitrogen per unit area and per unit volume in 

 various estuaries 115 



308 Approximate annual input from land drainage and point source discharges 

 of dissolved inorganic phosphate per unit area and per unit volume in 

 the study areas 116 



31 Total numbers of fishes per trawl sample taken at permanent stations in 

 the Apalachicola estuary, the Econfina estuary, and the Fenholloway 

 estuary 117 



xi 



