Surface water resources of Polk County, Florida

The rapid increase in population in Polk County during the last decade has been accompanied by a several-fold increase in the number and complexity of problems pertaining tothe use andcontrolof the streams andlakes of the county. The increase in problems has increased the need for more information about the occurrence and movement of surface water. The primary purpose of this report is to give that information. Its secondary purpose is to give information that will promote an understanding of the nature and causes of the problems or that will aid in arriving at practical solutions. (PDF contains 133 pages.)

Manual Control of Phragmites australis on Pondshores of Cape Cod National Seashore, Masachusetts, USA

The non-native, invasive genotype of the common reed ( Phragmites australis (Cav.) Trin. ex Steudel) has become a problem of significant proportions throughout wetlands of North America (Saltonstall 2001). Although attempts to suppress or eradicate Phragmites have utilized a wide variety of techniques, herbicides have generally been most effective (Marks et al. 1994). In the spring, mid-summer, and late summer of 2003, we attempted to opportunistically control Phragmites in five freshwater ponds within Cape Cod National Seashore (CCNS) by repeatedly severing stems underwater, at ground level.(PDF has 4 pages.)

Aktivitäten des nationalen Fischereidatenerhebungsprogramms im Jahr 2004

Based on the EU Regulation 1543/2000 for the improvement of quantity and quality of fishery data the Federal Ministry for Consumer Protection, Food and Agriculture has initiated a national data collection programme, executed by three institutions, Federal Research Centre for Fisheries (BFAFi), Federal Agency for Ariculture and Food and the Federal Research Centre Agriculture, co-ordinated by BFAFi. In 2004 samples have been taken from 943 hauls during 29 commercial fishing trips; 357 000 fish have been measured. From 2002 to 2004 the number of length and weight and measurements, and age determinations could increased by 32, 65 and 156 % resp. Pilot inquiries have been carried out to prepare also the collection of economical date of fishing vessels and of fish processing plants from 2006.

Information zum nationalen Fischereidatensammlungsprogramm

The EU-Commission has started an initiative to improve the quantity and quality of fishery data. This will improve the quality of fish stock assessments and is expected to implicitly enhance the quality of stock management. By the relevant regulations 1543/2000 and 1639/2001 member states are obliged to establish national programmes for the sampling of data necessary to evaluate the situation of fishery resources and the fishery sector. In this article the German national data sampling programme is described.