Shortspine thornyhead (Sebastolobus alascanus) inhabit deepwater soft bottom habitats over the outer edge of the continental shelf and the continental slope.  The spawning characteristics are the main difference between sebastes and sebastolubus.  Sebastes spawn internally and release their young as larvae.  Sebastolobus spawn externally releasing their eggs in a gelatinous mass that is fertilized by the male.  The shortspine thornyhead constitute part of the deepwater rockfish assemblage along with blackgill rockfish, Pacific Ocean perch, darkbloched rockfish, shortraker rockfish, splitnose rockfish, redbanded rockfish and the rougheye rockfish.   Although the shortspine thornyhead can occur as shallow as 85 feet, they mainly occur between 328 feet and 3280 feet.  Their color varies most often from bright red to pink with some black on the fins and 1 or 2 black dots on the spinous dorsal fin.      

  The longspine thornyhead and other thornyhead rockfish live at depths beyond the ability of recreational anglers to fish for them.  Thornyheads are long lived: living up to 62 and possibly as long as the shortspine thornyhead at 133 years.  They grow throughout their life attaining a maximum length of 24 inches.  Thornyheads are sit–and–wait predators that remain motionless for extended periods of time.  They feed on shrimp, crabs, amphipods, marine worms, forage fish and other thornyheads. The shortspine thornyhead is a desirable food fish.

  The variety of rockfish species found in Oregon's coastal waters fulfills the expectations of all recreational anglers regardless the level of their expertise.  Remember that conservation is the key that will assure good fishing into the future.  Only take enough fish to fulfill your immediate needs.

Date.......Depth.From.........................T0......................................Date.....Depth...From.........................To..............................

06/30/98  1099 4203.98   12436.66   4205.47   12436.84*

06/30/98  721   4212.74   12435.76   4214.30   12436.01*

07/13/95  702   4214.81   12524.05   4213.25   12524.45*

07/14/95  876   4223.64   12515.57   4225.08   12514.44*

07/01/98  813   4223.28   12443.95   4224.65   12445.11*

07/13/95  905   4234.19   12515.83   4232.47   12515.69

07/01/98  866   4236.29   12443.11   4234.86   12443.74*

07/03/98  698   4253.14   12447.71   4254.42   12448.80*

07/03/98  800   4253.69   12449.40   4254.15   12451.50*

07/16/95  803   4254.48   12510.40   4252.95   12510.22*

07/16/95  698   4254.87   12508.12   4254.20   12516.97*

07/02/98  682   4304.26   12447.00   4305.07   12448.62*

07/16/95  705   4304.86   12512.25   4304.06   12514.06*

07/03/98  843   4305.10   12451.74   4306.50   12450.56

07/17/95  853   4305.39   12508.51   4306.69   12509.72

07/17/95  718   4314.14   12516.68   4312.66   12516.97*

07/16/95  1200 4315.73   12508.89   4313.65   12509.97*

07/04/98  656   4316.08   12442.50   4314.53   12442.85**

07/04/98  616   4322.31   12443.93   4323.87   12443.63*

07/17/95  646   4322.78   12520.83   4324.38   12521.61*

07/18/95  249   4334.20   12543.27   4332.74   12542.99*

07/17/95  1128 4334.76   12521.53   4333.14   12521.50*

07/18/95  574   4335.29   12527.82   4333.72   12527.48*

07/06/98  620   4353.10   12434.58   4354.67   12435.12*

07/19/95  652   4353.50   12525.02   4355.16   12524.87*

07/06/98  731   4353.60   12449.28   4354.31   12451.25

07/19/95  774   4353.61   12510.27   4354.31   12508.39*

07/19/95  627   4354.46   12516.85   4354.46   12514.75*

07/06/98  643   4355.15   12440.95   4354.58   12443.04*

07/21/95  794   4423.94   12512.24   4425.37   12513.13*

07/21/95  570   4432.61   12523.76   4434.10   12524.04*

07/21/95  1184 4433.45   12513.39   4434.56   12511.75**

07/21/95  1200 4434.88   12510.99   4434.01   12511.53*

07/21/95  964   4435.21   12520.43   4433.69   12520.89**

07/21/95  1082 4435.56   12514.67   4434.32   12516.01**

07/23/95  669   4442.99   12524.93   4444.50   12525.38*

07/11/98  695   4445.42   12434.88   4443.94   12435.52*     

07/12/95  846   4453.30   12446.42   4452.32   12547.81*

07/23/95  721   4454.01   12532.54   4455.36   12533.92*

07/23/95  574   4454.57   12536.20   4455.79   12537.79*

07/12/98  695   4455.53   12425.78   4454.29   12427.11

07/25/95  1102 4503.26   12532.41   4504.62   12533.56**

07/13/98  803   4503.85   12422.55   4505.31   12421.70**

07/12/98  954   4504.57   12442.28   4304.18   12540.79

07/25/95  803   4505.60   12538.71   4504.13   12537.92*

07/24/95  1151 4506.39   12525.84   4504.91   12526.56**

07/25/95  534   4513.49   12546.12   4515.01   12546.78*

07/25/95  692   4514.80   12540.77   4513.18   12541.24*

07/13/98  531   4515.57   12413.68   4514.04   12413.70*

07/14/98  666   4516.97   12419.33   4515.41   12419.05*

07/14/98  541   4525.05   12416.43   4523.45   12416.29*

07/14/98  485   4525.18   12413.36   4523.61   12413.74*

07/14/98  662   4525.30   12423.08   4523.95   12422.45*

07/26/95  702   4526.30   12535.67   4524.80   12536.66*

07/15/98  698   4533.11   12427.05   4534.63   12427.96*

07/15/98  629   4533.38   12425.12   4534.82   12425.89

07/27/95  600   4533.55   12537.18   4535.24   12536.09*

07/27/95  629   4533.64   12535.42   4534.96   12534.36*

07/26/95  538   4533.92   12539.92   4535.48   12539.46*

07/27/95  767   4534.22   12531.54   4532.72   12531.93*

07/15/98  521   4535.09   12420.31   4533.58   12419.71*

07/15/98  564   4535.74   12423.30   4534.47   12422.77*

07/28/95  587   4543.22   12531.83   4544.63   12530.85*

07/28/95  692   4543.63   12523.61   4545.06   12522.88*

07/28/95  649   4543.88   12526.02   4545.36   12524.95*

07/15/98  600   4544.02   12430.50   4545.24   12431.87**

07/28/95  623   4544.94   12526.80   4543.98   12528.57*

07/15/98  679   4545.16   12437.17   4543.65   12436.51*

07/15/98  570   4545.21   12429.90   4543.94   12428.27

07/15/98  771   4545.72   12439.27   4544.87   12441.34*

07/27/95  813   4546.12   12520.32   4544.72   12519.23*

07/15/98  663   4546.27   12435.15   4544.85   12434.38*

07/16/98  797   4553.01   12442.31   4554.80   12442.69*

07/12/98  846   4553.30   12446.42   4552.32   12447.81

07/16/98  472   4553.60   12424.91   4555.06   12425.39*

07/28/95  479   4553.79   12538.85   4554.80   12537.07*

07/27/95  203   4554.30   12517.39   4552.79   12517.43*

07/19/98  767   4603.66   12442.31   4605.22   12442.13*

07/29/95  679   4603.67   12519.03   4605.25   12519.20*

07/29/95  570   4604.09   12522.18   4605.69   12522.02*

07/30/95  439   4604.14   12533.17   4605.67   12532.55*

07/19/98  564   4605.18   12438.18   4603.59   12438.13*

07/19/98  410   4612.84   12422.93   4614.43   12422.17*

07/19/98  794   4614.44   12424.64   4615.77   12424.01**

07/29/95  1036 4615.46   12535.28   4613.97   12534.83**

07/29/95  498   4615.56   12536.97   4613.95   12536.66*

07/31/95  423   4632.83   12532.01   4634.51   12531.95*

07/20/98  410   4632.85   12427.46   4634.40   12427.69*

08/01/95  757   4633.90   12528.43   4634.42   12527.63

08/01/95  908   4634.15   12524.81   4634.22   12526.81*

08/01/95  702   4634.42   12527.20   4633.41   12529.47

07/21/98  734   4634.63   12433.78   4634.24   12435.95**

07/20/98  639   4634.82   12434.85   4634.29   12432.73

Return to Triennial Trawl Survey.