Anti-netting devices ready to be employed. The current design of the Anti Netting Device (AND) was developed by Alan Pitman and each unit costs currently around MK1, 800.00 (US$13.00) each, including the securing cable and anchorage. The transportation of the anchorages is fairly expensive as large chunks of metal like the thresher baskets is used. The "cable" is still a bit of an issue as it is not certain that they will last long, being just galvanized; mild steel chain may be better as the lake is very kind to steel (the water has a relatively low conductivity). The anchorages are only used where there are sandy bottoms as it is possible to use the natural rock to secure the ANDs in rocky areas. 
The ANDs are placed in a staggered double row pattern to stop the seine netters in sandy areas and randomly placed in rocky areas so as to deter gill netting. All AND positions are GPS-recorded and are visited around once a month by a SCUBA diver (Alan Pitman) clearing away the nets and long lines that have been caught. The distance between ANDs is around 25 meters so there will be five in 100 meters of sandy bottom. The total length of the shores of all islands and mainland sections in the park is estimated at about 40 km and a projected total of about 2000 ANDs (cost at present about $26,000) are needed to guard the entire park shoreline from illegal fishing.