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DMR Home > Species Info > Shrimp > 2013 pre-season tows > South Bristol

Pre-Season Shrimp Tows, South Bristol, Maine, January 13, 2013

Three shrimp trawlers from Maine (from South Bristol, Stonington, and Sebasco) and one from New Hampshire made some experimental pre-season shrimp tows for one day during the week of January 13, 2013.  All data from the South Bristol trip are listed below.

The South Bristol boat averaged 186 pounds of shrimp per hour.  Its best tow was 331 pounds per hour.  Lobster gear may have prevented the boat from getting out to better fishing grounds.  Depths ranged from 23 to 61 fathoms, with the highest catch rate at the deepest tow (see tow 5 below).  Count per pound averaged about 38, except for the first tow which had a lot of smaller striped shrimp (P. montagui).  Most shrimp were still carrying eggs (see graph at bottom).

Please select one of these links, or scroll down the page:

Chart of the South Bristol area, Southport Is to Muscongus Bay

Size-sex-eggstage frequency graph
Note that most female shrimp were still carrying eggs (ovigerous, light blue).  About 7% had hatched off their eggs (orange) .

Graph of shrimp sizes by sex and egg stage

South Bristol Data for Each Tow, January 13, 2013
Date
Port
Boat Length (ft)
Area Towed
Tow
Latitude
Longitude
Depth (fath.)
Tow Minutes
Catch (lbs)
Lbs per Hour
Count per lb
 Comments
Jan. 13
South Bristol ME
42
Pemaquid Point
1 start
end
43°52'42"
43°51'34"
69°28'11"
69°28'38"
23
29
31
64
124
68
 Catch was mostly striped shrimp P. montagui
"
"
"
Upper channel (west side)
2 start
end
43°49'19"
43°48'11"
69°29'27"
69°29'54"
40
44
30
122
244
38
  
"
"
"
Below the wall
3 start
end
43°47'35"
43°46'29"
69°29'28"
69°29'31"
49
54
30
105
210
40
  
"
"
"
  
4 start
end
43°45'10"
43°44'04"
69°30'16"
69°30'49"
59
55
31
94
182
39
 Caught 3 ghost lobster traps
"
"
"
  
5 start
end
43°43'55"
43°42'45"
69°31'10"
69°31'41"
56
61
33
182
331
38
  
"
"
"
  
6 start
end
43°43'57"
43°45'10"
69°31'12"
69°30'40"
55
54
33
114
207
38
  
"
"
"
7 start
end
43°45'40"
43°46'50"
69°30'26"
69°30'16"
56
51
32
45
84
39
  
"
"
"
  
8 start
end
43°48'00"
43°49'15"
69°30'34"
69°30'10"
42
38
33
57
104

38

 

  
       
Averages
48
32
98
186
42
 Avg. Count/lb = 38 if 1st tow not included