Yellowtail rockfish (Sebastes flavidus) are commonly referred to as Greenies and are one the most abundant midwater species found over the middle continental shelf, and ranks fourth overall in rockfish catch statistics. 

Yellowtail rockfish are most common near the bottom, but not on the bottom and are considered semi–pelagic because they range over wider areas than benthic rockfish.  They most often suspend at depths between 264 and 1000 feet.  Off Heceta Bank, they suspend during the day at depths of 80 to 115 beneath the surface, well above the sea floor depths approximately 226 feet.  They can be found above mud with cobble, boulder fields, rock ridges and sand habitats; they are not found above mud or flat rock.  They form large schools often numbering more than 1000 fish that can be found alone or in association with other rockfish.  These schools may persist at the same location for many years.  Yellowtail rockfish occur along steeply sloping shores or above rocky reefs.  Yellowtail rockfish are long–lived and slow–growing.  They attain a maximum length of 23 inches in 15 years and live as long as 64 years of age.  The color of yellowtail rockfish varies from olive brown to greenish brown with some light mottling dorsally fading lightly ventrally.  The fins are colored with yellowish green with the ventral fins often tinged in orange.  The anal fin demonstrates a strong posterior slant toward the tail fin.  Yellowtail rockfish respond the Diel Vertical Migration by rising toward the surface feeding primarily on forage fish and zooplankton.

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

07/13/95  377   4203.02   12529.36   4204.55  12529.52*

07/25/83  426   4210.9     12430.9     4212.4     12431.1*

07/25/83  449   4223.5     12441.7     4222.5     12440.3**

07/26/83  318   4230.8     12437.8     4232.0     12437.2

07/02/98  469   4234.05   12441.21   4235.54   12440.97*

07/13/95  905   4234.19   12515.83   4232.47   12515.69

07/14/95  229   4236.55   12529.75   4235.00   12530.00*

07/27/83  298   4239.4     12433.2     4240.8     12433.3*

07/28/83  396   4252.6     12442.5     4251.1     12442.4*

07/03/98  698   4253.14   12447.71   4254.42   12448.80*

07/27/83  426   4253.5     12442.6     4255.0     12442.4**

07/02/98  449   4253.69   12443.32   4255.31   12443.35

07/02/98  314   4256.41   12439.09   4254.93   12439.86***

07/28/83  341   4258.7     12437.3     4300.0     12436.4*

07/28/83  541   4259.8     12445.0     4301.2     12445.0**

07/28/83  456   4300.8     12440.9     4259.2     12440.8*

08/05/86  370   4302.2     12435.7     4303.4     12435.2*

07/29/83  360   4303.0     12435.9     4301.4     12436.0*

07/03/98  410   4303.95   12437.32   4305.56   12437.21*

07/28/83  413   4306.4     12436.6     4304.9     12436.8*

08/07/86  508   4308.1     12438.9     4309.6     12438.5*        

08/07/86  419   4311.2     12438.6     4312.0     12437.7*** 

08/07/86  262   4314.2     12433.5     4313.4     12433.8*

08/07/86  318   4315.1     12434.6     4316.2     12433.7**

07/04/98  390   4317.26   12436.65   4315.61   12436.76*

08/01/83  580   4317.3     12440.3     4315.7     12441.2*

07/31/83  403   4322.1     12432.5     4322.9     12434.1*

08/02/83  472   4328.5     12433.1     4329.7     12431.9*

08/02/83  485   4330.3     12431.7     4331.6     12430.8

07/04/98  249   4332.95   12417.30   4334.48   12416.71*

07/18/95  334   4333.19   12539.60   4334.61   12540.73***

08/03/83  305   4334.3     12418.1     4335.7     12417.8*

07/05/98  551   4335.46   12431.97   4333.96   12432.30**

07/05/98  449   4335.56   12428.91   4334.06   12429.32*

08/02/83  383   4335.6     12423.2     4337.0     12422.9**t

08/08/86  580   4335.9     12431.9     4337.4     12431.8*

08/02/83  475   4336.9     12428.6     4335.5     12429.1*

08/08/86  360   4338.2     12422.0     4339.7     12421.8*

08/03/83  367   4339.2     12422.5     4337.6     12423.1*

08/08/86  442   4339.5     12428.1     4340.8     12428.0**

08/03/83  419   4339.6     12427.2     4341.0     12427.4*

08/03/83  298   4339.7     12416.6     4341.1     12416.7**

08/03/83  570   4341.5     12431.6     4343.0     12431.7**

07/18/95  547   4342.69   12528.56   4344.34   12528.97*

08/04/83  216   4342.9     12415.1     4344.7     12414.7*

07/05/98  334   4343.86   12418.87   4345.39   12418.57*

08/03/83  551   4346.5     12432.0     4345.0     12431.9*

08/09/86  449   4346.6     12430.2     4348.0     12430.2*

08/04/83  354   4348.8     12421.1     4349.8     12419.9*

08/04/83  426   4350.4     12429.3     4351.7     12428.9**

08/04/83  396   4350.5     12425.8     4349.0     12425.8*

08/04/83  636   4351.7     12434.2     4350.0     12434.1*

08/09/83  541   4353.5     12433.0     4355.0     12433.3**

07/19/95  652   4353.50   12525.02   4355.16   12524.87*

07/07/98  337   4354.10   12418.20   4355.61   12418.30*

08/04/83  377   4354.0     12423.0     4352.5     12423.0*

08/09/86  383   4354.2     12425.9     4355.0     12426.0*

08/09/83  557   4355.1     12448.4     4356.0     12450.0

08/09/83  295   4355.5     12416.5     4353.9     12415.8*

08/09/86  449   4355.5     12430.5     4357.0     12430.3*

08/09/83  544   4355.7     12444.9     4355.3     12446.7*

07/06/98  413   4355.78   12428.95   4354.26   12429.33

08/10/83  478   4356.4     12432.6     4357.9     12432.9*

08/10/83  383   4356.6     12424.2     4358.1     12423.8*

08/09/83  367   4356.7     12420.2     4357.9     12421.4*

08/10/86  367   4358.1     12451.6     4358.7     12450.1*

08/10/83  413   4358.5     12428.5     4357.0     12428.7**

08/10/83  830   4358.7     12457.0     4400.2     12456.6*

08/10/83  377   4358.8     12430.7     4400.2     12430.8*

08/10/86  426   4359.5     12446.7     4400.5     12445.5*

08/10/83  403   4359.7     12445.6     4401.3     12446.0*

08/10/83  492   4401.2     12436.0     4359.7     12436.0*

08/11/83  419   4402.2     12431.1     4404.0     12430.8*

08/10/86  426   4402.2     12441.6     4402.7     12439.6*

08/10/86  393   4402.4     12445.4     4401.2     12446.4*

08/11/83  413   4402.8     12440.1     4404.3     12440.4*

08/11/83  377   4403.4     12424.2     4401.9     12423.9*

08/11/83  403   4403.6     12427.0     4402.1     12426.8*

07/07/98  367   4403.78   12424.69   4405.36   12425.11*

07/07/98  387   4404.14   12427.56   4405.30   12429.12*

07/06/98  331   4404.27   12448.34   4405.72   12448.92*

07/06/98  410   4404.54   12434.19   4404.38   12436.36*

07/06/98  298   4404.55   12449.80   4403.76   12448.68**

07/07/98  400   4404.70   12431.55   4404.41   12433.67*

07/06/98  377   4405.19   12443.56   4404.32   12444.90

08/10/83  648   4405.3     12455.8     4403.8     12455.7*

08/10/86  479   4405.9     12454.4     4404.3     12454.8**

08/10/86  396   4406.2     12434.6     4406.8     12432.6*

08/10/83  347   4406.4     12447.2     4405.9     12445.6*

08/12/83  324   4406.6     12448.5     4407.8     12447.3**

08/10/86  334   4406.7     12448.3     4405.5     12450.0*

08/17/83  679   4408.6     12456.7     4407.2     12456.4*

08/17/83  744   4413.3     12456.6     4414.7     12455.9

08/18/83  324   4416.5     12429.4     4418.0     12429.5**

07/08/98  551   4417.13   12451.41   4416.19   12453.18*

08/19/83  541   4418.2     12449.2     4419.7     12449.0**

08/11/86  485   4419.7     12446.6     4421.1     12445.9

08/11/86  341   4420.7     12442.1     4421.3     12442.7**

08/11/86  298   4421.1     12431.0     4422.6     12430.0**

08/17/83  439   4423.6     12443.1     4424.6     12441.5**

07/21/95  518   4423.74   12514.62   4425.17   12515.53*

07/21/95  794   4423.94   12512.24   4425.37   12513.13**

08/17/83  390   4424.7     12438.5     4423.1     12438.3** 

08/11/86  383   4426.1     12435.8     4424.9     12437.1**

08/16/83  541   4428.9     12438.1     4430.2     12436.9

08/12/86  262   4429.4     12417.4     4428.1     12417.9*

08/16/83  383   4430.1     12433.2     4428.6     12433.4**

07/11/98  390   4432.45   12432.31   4433.92   12431.47*

07/09/98  538   4432.56   12435.86   4434.17   12435.75**

07/21/95  570   4432.61   12523.76   4434.10   12524.04*

08/15/83  180   4433.2     12412.1     4434.7     12411.7*

08/16/83  298   4434.0     12429.4     4435.2     12428.6*

08/16/83  498   4435.4     12433.6     4434.3     12443.9**

08/12/86  479   4437.3     12433.0     4439.5     12434.0**

08/19/83  534   4439.6     12433.5     4438.1     12433.9*

08/19/83  354   4439.7     12427.2     4439.8     12427.8**

08/13/86  544   4440.8     12433.6     4441.6     12433.4*

07/23/95  669   4442.99   12524.93   4444.50   12525.38

07/11/98  429   4443.71   12428.29   4445.14   12427.31*      

07/11/98  695   4445.42   12434.88   4443.94   12435.52**     

08/13/86  413   4447.5     12421.2     4448.9     12420.2*

08/17/83  432   4447.9     12423.6     4446.3     12424.3**

08/17/83  564   4448.2     12430.1     4446.5     12430.7***

08/21/83  397   4451.9     12414.6     4453.3     12414.4*

08/21/83  508   4453.8     12422.2     4452.6     12423.4**

08/13/86  495   4454.6     12423.8     4455.8     12422.7*

08/14/86  492   4455.8     12416.5     4457.2     12416.2*

08/13/86  498   4458.1     12416.0     4459.6     12416.1**

08/20/83  528   4458.6     12418.6     4459.6     12417.0**

08/14/86  370   4500.1     12410.8     4501.3     12409.9*

07/25/95  524   4506.33   12545.70   4504.82   12545.23*

07/13/98  531   4515.57   12413.68   4514.04   12413.70*

08/15/86  196   4528.2     12402.0     4529.7     12402.2*

07/15/98  629   4533.38   12425.12   4534.82   12425.89

07/15/98  390   4533.68   12411.54   4535.30   12411.75**

07/15/98  521   4535.09   12420.31   4533.58   12419.71*

07/15/98  564   4535.74   12423.30   4534.47   12422.77*

08/15/86  426   4536.4     12413.3     4537.9     12413.5*

08/21/83  665   4539.0     12428.5     4540.7     12428.8*

08/21/83  432   4540.1     12414.0     4539.0     12412.4

07/28/95  498   4543.59   12536.68   4545.13   12536.21*

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  570   4545.21   12429.90   4543.94   12428.27*

07/15/98  663   4546.27   12435.15   4544.85   12434.38***

08/16/86  472   4551.0     12419.9     4552.6     12419.9*

08/16/86  469   4551.1     12419.3     4549.5     12419.1*

08/24/83  505   4551.5     12431.3     4550.2     12432.3***

08/24/83  426   4552.1     12415.7     4550.6     12415.8**

07/16/98  495   4552.87   12429.48   4554.33   12429.96**

07/16/98  459   4553.72   12421.21   4555.12   12421.99*

07/28/95  419   4554.84   12543.50   4553.24   12543.15*

08/16/86  456   4555.6     12420.8     4557.0     12421.3*

08/16/86  442   4557.9     12421.3     4559.4     12421.0*

08/22/83  629   4602.2     12439.7     4600.7     124 40.2*

08/23/83  252   4602.8     12407.3     4604.4     12407.4*

08/23/83  311   4602.8     12414.1     4603.7     12416.1**

08/23/83  492   4602.9     12432.8     4601.3     12432.5*

07/18/98  449   4603.64   12428.95   4605.04   12429.98*

07/18/98  406   4603.72   12422.74   4604.95   12424.24*

07/18/98  423   4603.93   12425.54   4605.34   12426.57*

07/18/98  465   4603.93   12431.59   4603.59   12433.10***

07/29/95  570   4604.09   12522.18   4605.69   12522.02*

07/30/95  439   4604.14   12533.17   4605.67   12532.55*

07/29/95  459   4604.72   12530.93   4606.22   12531.11*

08/17/86  406   4604.8     12422.3     4605.8     12423.6*

08/17/86  439   4607.6     12428.6     4606.1     12428.9*

08/25/83  738   4609.2     12439.7     4610.0     12438.3*

08/17/86  449   4609.5     12427.5     4610.8     12427.9*

08/17/86  334   4611.2     12417.8     4612.9     12418.5*

08/17/86  367   4611.3     12419.6     4610.0     12419.1*

08/17/86  439   4611.7     12428.9     4611.3     12426.5

07/19/98  393   4612.77   12420.95   4614.28   12420.27*

08/18/86  311   4614.9     12417.9     4616.4     12417.2**

07/29/95  498   4615.56   12536.97   4613.95   12536.66*

08/26/83  738   4616.8     12420.9     4617.8     12422.8*

08/26/83  426   4618.0     12420.5     4616.8     12419.6***

08/23/83  629   4618.3     12436.5     4617.7     12435.9*

08/24/83  442   4618.7     12427.5     4620.3     12426.7*

08/18/86  383   4619.9     12422.1     4620.0     12424.6***

08/24/83  367   4620.4     12424.0     4619.0     12424.6*

08/27/83  689   4620.7     12435.6     4621.9     12435.8*

08/18/86  419   4620.8     12426.1     4621.6     12432.7**

08/18/86  462   4620.9     12431.8     4622.1     124 32.7*

08/27/83  305   4622.1     12422.0     4623.9     12422.0

08/18/86  442   4622.3     12430.5     4624.0     12430.2

07/20/98  226   4623.17   12417.30   4624.77   12417.39*

07/20/98  354   4623.64   12424.93   4625.21   12425.29***

08/25/83  419   4625.0     12428.7     4626.7     12427.8**

07/19/98  485   4625.12   12431.73   4623.72   12432.72*

07/19/98  413   4625.25   12427.97   4623.67   12428.24***

08/19/86  239   4628.3     12420.7     4629.6     12419.5*

08/19/86  364   4628.6     12427.7     4629.9     12426.8*

08/18/86  472   4626.6     12430.2     4628.1     12429.3*

08/25/83  347   4629.8     12425.4     4628.2     12424.4

07/31/95  423   4632.83   12532.01   4634.51   12531.95**

07/20/98  410   4632.85   12427.46   4634.40   12427.69***

07/21/98  734   4634.63   12433.78   4634.24   12435.95*

08/19/86  396   4634.8     12426.7     4635.6     12428.5*

07/20/98  639   4634.82   12434.85   4634.29   12432.73

08/18/86  485   4636.7     12435.6     4638.4     12435.7*

08/25/83  298   4636.8     12426.7     4638.1     12425.1

08/26/83  455   4637.0     12432.6     4638.5     12432.8*

08/26/83  505   4637.9     12437.5     4636.9     12435.4*

Return to Triennial Trawl Survey.