BIOLOGIST REPORT

Monocacy Creek 


Monocacy Creek, between Illicks Mill dam and the dam upstream of Belle Vista Drive in Bethlehem, Northampton County, was surveyed by Coimmission staff from July 26-27, 2000 to evaluate this fishery under Trophy Trout regulations.  One historical site, beginning at  Macada Road and extending approximately 480 yards upstream, is electrofished annually to document the fishery under a time-series basis.  Brown trout abundance estimates since 1997 are summarized below.

Brown Trout

1997

1998

1999

2000

Size # per hectare kilograms per hectare # per hectare kilograms per hectare # per hectare kilograms per hectare # per hectare kilograms per hectare
2"   54   0.16   47  0.14 113 0.30     51   0.10
3" 537   3.23 721   4.32 712   2.78 1333   8.00
4"   36   0.36   31   0.31   22 0.25   110   0.99
5"   45   2.12     2   0.09     7   0.19  
6" 194 14.56 114   5.38 112   5.84     80 4.00
7" 237 22.56 342 25.63 336 25.51    149 10.88
8"   83 11.40 176 16.71 169 16.51     94   8.65

9" 137 27.87   66   8.99 121 16.63     76 11.40
10"   87 20.25 189 35.98 155 26.41     98 18.82
11"   48 14.16 131 30.43   77 18.06     71 15.69
12"   22   8.17   58 17.10   58 16.37     12   3.70
13"   11   5.16   28 10.69     9 3.45     12 4.38
14"     4   2.61     9   4.42     4 2.09

   
15"         2   1.40           4   2.14
16"         2   1.86     4   3.18    
17"                
18"                
19"                
20"                   2 1.25
                    2   2.80
Totals 1495 132.61 1918  163.45 1901 137.58 2094 92.80

Monocacy Creek continues to support an excellent wild brown trout population.  Reduced biomass in 2000 may be attributed to low water conditions from the summer and fall of 1999.  Good numbers of young-of-year size trout were found which is a good indication that this fishery should provide excellent angling opportunities for the future.

-- Coldwater Unit & Fisheries Management Area 5

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