Titlebook: Environmental Assessment and Habitat Evaluation of the Upper Great Lakes Connecting Channels; M. Munawar,T. Edsall Book 1991 Springer Scie

斷斷續(xù)續(xù)

neuron

Effects of pollution on benthic invertebrate communities of the St. Marys River, 1985,tewater sources at 70 stations between Whitefish Bay and lower Lake George in the St. Marys River. Cluster analysis identified seven benthic communities. Three were identified as pollution impacted, based on a preponderance of tubificids and nematodes, usually at high densities (up to 259000 m-.), b

GROVE

恫嚇

抗體

生銹

Distribution and abundance of young fish in Chenal Ecarte and Chematogen Channel in the St. Clair Rcies (a total of 48) and low in abundance (generally less than a mean of 5 100 m-. of water filtered). Most species were residents of the delta; others apparently hatched in tributaries of the St. Clair River or in southern Lake Huron, and drifted into the delta. Highest species diversity was nearsh

Introduction

harmony

老人病學(xué)

neurologist