A stock assessment of the gulf menhaden. Brevoortia patronus, fishery was conducted with data on purse-seine landings from 1946 to 1985 and port sampling data from 1964 to 1985. These data were analyzed to determine growth rates, yield-per-recruit, spawner-recruit relationships, and maximum...

The striped bass population in the San Francisco Bay/Delta estuary has been declining over the past two decades. Though the decline has been studied intensively, the causes are not completely understood. In this report we provide a review of theories about the decline, empirical evidence, and...

Sediments are an essential component of rivers and of their biological functioning. In addition to their influence on river geomorphology (maintenance of river forms and habitats such as pools and sand bars), sediments also include nutrients, detritus and organic debris of various sizes which...