Lobster Shell Disease Training Images

Homarus americanus w/wo lesions:

Undersized (Sub-legal) Lobsters < 3.25" (< 82.55 mm) Specimen Sex CL Trawl K N Lat/Lon Condition SSI AVI Sea vs Land a fem 49 270 0 5 42.848/-70.409 Normal 0 hor sea b Sex 76 277 0 124 42.750/ -70.601 Normal 0 hor | ver land c Sex 81 277 0 124 42.750/ -70.601 Normal 0 hor | ver land d Sex 76 277 0 124 42.750/ -70.601 Normal w. prior-molt-repair 0 hor | ver land e male 77 286 0 120 42.127/-70.561 Normal w. barnacles 0 hor | ver sea f Sex 76 282 2 120 42.428/-70.690 Normal w. "fairy-rings" 0 hor land g male 72 285 4 120 42.355/-70.835 Atypical ESD 1 hor | ver land j male 77 285 4 120 42.355/-70.835 Severe ESD 1 hor | ver sea i fem 76 285 4 120 42.355/-70.835 Severe ESD 1 hor | ver sea i* fem 76 285 4 120 42.355/-70.835 Severe ESD 1 hor | ver land h fem 67 238 1 2 41.768/-68.002 Severe ESD 2 hor | ver land l Sex 82 262 1 55 43.849/-68.465 Severe ESD 2 hor | ver land k Sex 80 282 2 120 42.428/-70.690 Severe ESD 3 hor | ver land Legal Sized Lobsters > 3.25" -- < 5" (> 82.55 mm -- < 127 mm) Specimen Sex CL Trawl K N Lat/Lon Condition SSI AVI Sea vs Land A Sex 97 262 1 55 43.849/-68.465 Normal 0 hor | ver land B Sex 93 256 2 18 43.796/-67.222 Normal w. "cigar-burn" 0 hor | ver land C Sex 98 282 2 120 42.428/-70.690 Normal w. "fairy-rings" 0 hor | ver land D Sex 89 258 1 12 43.969/-66.984 Mild ESD 1 hor | ver land E Sex 91 256 2 18 43.796/-67.222 Mild ESD 1 hor | ver land F Sex 88 266 1 20 43.146/-69.720 ESD 1 hor | ver land H Sex 112 256 2 18 43.796/-67.222 ESD 1 hor land G fem 105 263 3 19 43.595/-69.456 ESD 2 hor | ver land I fem 124 263 3 19 43.595/-69.456 ESD 2 hor | ver land M Sex 120 267 1 3 43.0277/-69.619 Severe ESD 2 hor land J Sex 91 282 2 120 42.428/-70.690 Severe ESD 3 hor | ver land K fem 94 249 2 11 43.336/-68.441 Severe ESD 3 hor | ver land L male 104 285 4 120 42.355/-70.835 Severe ESD 3 hor | ver sea Oversized Lobsters CL > 5" (CL > 127 mm) Specimen Sex CL Trawl K N Lat/Lon Condition SSI AVI Sea vs Land α Sex 166 263 3 19 43.595/-69.456 Mild ESD 1 hor | ver land γ Sex 143 259 1 7 44.080/-66.837 moderate ESD 2 hor | ver land β fem 136 278 1 12 42.599/-70.337 Severe ESD 2 hor | ver land

Maine DMR lobster ESD Severity Standardized Index: (Landers 2005) (ESD SSI) 0 ESD = 0% 1 ESD < 10% 2 ESD = 11-50% 3 ESD > 50%

• CL = carapace length, from eye socket to posterior midline terminus.
• K = number of ESD at this trawl site.
• N = total number of lobsters at this trawl site.
• SSI = Severity Standardized Index (Landers 2005).
• Land vs Sea = Images for AVI taken on land vs aboard ship (as explained below).

Images (3008 by 2000 pixels = 6 megapixel) were taken with a Nikon D40 with an AF-S Nikkor VR 28-300mm zoom 3.5-5.6 G lens.

Specimens were mounted vertically on a turntable and rotated manually between images taken coronally about the carapace, omitting the lobsters ventral aspect.

The carapace models done at sea (NOAA Ship HB Bigelow, Spring NE Groundfish Survey leg 4) used a hand-held camera to take the images with room lighting. The specimens were live and the carapace structure was isolated in Photoscan using masking of unwanted structures such as legs and abdomen.

The models done on land used a rigid tripod with adjustable height and day-light illumination. The specimens were thawed carapaces whose legs and abdomen had been previously removed. Further removal of unwanted structures was done in Photoscan using its masking tools.