Age and Growth Program

Maximum Age Encountered

Scientific name

Common Name

Max Age (years)

Natural Mortality (per year)

Sample size

Flatfish

Alaska Plaice

0.11

11,003

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2018	162	201801	269	47	38
Survey	2014	162	201401	60	54	37
Survey	2013	89	201301	199	54	37
Survey	2005	89	200501	339	50	37
Survey	2002	89	200201	441	51	37

Arrowtooth Flounder

0.11

27,337

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2016	143	201601	229	67	37
Survey	2012	148	201201	282	87	34
Survey	2010	148	201001	544	64	34
Survey	2010	148	201001	559	63	34
Survey	2009	143	200901	506	56	32

Bering Flounder

0.13*

1,960

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2010	162	201001	123	35	33
Survey	2007	89	200701	33	39	30
Survey	2010	162	201001	116	44	30
Survey	2006	134	200601	72	38	29
Survey	1985	60	198501	78	40	28

Dover Sole

0.06

7,744

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2019	148	201901	35	47	64
Observer	2016	A346	21006	1085868	600	63
Survey	2019	148	201901	60	48	62
Survey	2011	148	201101	72	43	59
Observer	2016	A346	21006	1085814	420	58

Flathead Sole

0.11

41,405

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Observer	2016	A035	21173	1109906	40	37
Observer	2014	A077	19463	939910	40	37
Observer	2020	A077	24376	1323741	450	36
Survey	2013	89	201301	276	39	34
Survey	2011	162	201101	104	49	34

Greenland Turbot

0.08

11,178

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Observer	2007	A023	11242	373945	87	53
Survey	2016	178	201601	570	77	49
Observer	2007	A312	11247	347682	96	48
Observer	2007	A642	11252	358680	86	47
Observer	2007	A642	11252	358698	75	47

Kamchatka Flounder

0.07

8,030

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2016	176	201601	352	60	58
Survey	2018	143	201801	228	66	54
Survey	2018	143	201801	233	64	53
Survey	2014	176	201401	242	65	52
Survey	2016	176	201601	355	63	51

Longhead Dab

0.26*

458

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2001	88	200101	23	32	16
Survey	2002	89	200201	28	28	13
Survey	2001	88	200101	20	28	13
Survey	2002	89	200201	51	31	13
Survey	2001	88	200101	5	23	13

Northern Rock Sole

0.11

33,684

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2018	162	201801	320	45	37
Survey	2022	94	202201	350	37	33
Survey	2021	162	202101	303	43	31
Observer	2018	A001	22442	1164458	350	31
Survey	2017	162	201701	193	36	31

Rex Sole

0.08

12,208

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2001	57	200101	41	36	49
Observer	2016	A573	20935	1055022	41	41
Observer	2016	A343	20927	1019894	48	41
Observer	2003	A035	8365	156506	40	40
Survey	1992	P018	1672	106	38	40

Rock Sole Unidentified

0.13

8,371

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	1990	83	199001	62	42	32
Survey	1991	37	199101	260	45	30
Survey	1996	94	199601	65	44	28
Observer	1992	A096	1479	76	41	26
Survey	1990	83	199001	63	47	26

Southern Rock Sole

0.15

6,723

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2011	143	201101	74	48	28
Survey	2009	143	200901	113	46	28
Survey	2007	143	200701	16	38	28
Survey	2012	MR	201201	67	48	28
Survey	2007	143	200701	28	36	28

Yellowfin Sole

0.10

47,930

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2017	162	201701	178	37	43
Observer	2020	A486	24357	1365000	380	40
Survey	2014	94	201401	393	36	40
Survey	2017	162	201702	98	37	40
Observer	2012	A078	15897	762504	38	39

Rockfish

Blackspotted Rockfish

134

0.03

6,099

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2016	143	201601	27	59	134
Survey	2016	143	201601	24	50	105
Survey	2013	143	201301	187	53	103
Survey	2010	148	201001	72	54	103
Survey	2010	143	201001	230	62	100

Dark Rockfish

0.06*

2,378

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2002	9999	200201	287	41	67
Survey	2002	9999	200201	346	42	67
Survey	2002	9999	200201	311	43	61
Survey	2001	9999	200101	297	43	60
Survey	1993	90	199301	11	47	59

Dusky Rockfish

0.05

16,074

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Observer	2004	A108	9222	232713	51	76
Survey	2013	176	201301	47	50	75
Observer	2009	A563	13036	479419	470	70
Survey	2017	148	201701	4	50	69
Survey	2016	176	201601	37	49	67

Harlequin Rockfish

0.05*

1,465

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2004	147	200401	72	33	79
Survey	2015	SF	201502	9	38	76
Survey	2014	SF	201401	3109	38	72
Survey	2004	147	200401	80	35	69
Survey	2014	SF	201401	3128	37	68

Northern Rockfish

0.05

32,939

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Observer	2004	A068	9223	57763	41	88
Observer	2000	A110	6292	194	39	80
Observer	2004	A276	9251	220196	35	79
Observer	2003	A650	8742	179069	49	76
Survey	2012	148	201201	550	40	75

Pacific Ocean Perch

105

0.04

67,162

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2008	94	200801	398	43	105
Survey	2004	143	200401	907	39	104
Survey	2000	94	200001	426	39	100
Survey	2002	57	200202	162	43	98
Survey	2022	176	202201	551	38	95

Quillback Rockfish

0.06*

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2008	SE	200801	35	39.3	74
Survey	2007	999	999999	20071	42	71
Survey	2006	999	999999	200611	48	53
Survey	2008	SE	200801	2	46	47
Survey	2007	999	999999	200711	38	47

Redstripe Rockfish

0.09*

634

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2013	176	201301	48	33	46
Survey	2013	143	201301	74	38	41
Survey	2013	143	201301	30	46	37
Survey	2013	176	201301	1	35	36
Survey	1996	23	199601	100	36	36

Rougheye Rockfish

135

0.03

19,749

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2009	94	200901	485	64	135
Survey	1993	21	199309	15	60	132
Observer	2017	A108	21999	1160370	87	131
Survey	1993	21	199309	17	54	130
Observer	2017	A222	21734	1132380	67	130

Rougheye Rockfish Not Mixed

144

0.03*

777

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2022	176	202201	10	59	144
Survey	2019	148	201901	361	60	108
Survey	2017	143	201701	367	53	65
Survey	2019	148	201901	320	54	62
Survey	2021	148	202101	316	52	61

Sharpchin Rockfish

0.09*

567

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	1996	94	199601	182	29	48
Survey	1996	94	199601	159	35	48
Survey	1996	100	199601	177	27	43
Survey	1996	100	199601	244	36	39
Survey	1996	94	199601	36	28	39

Shortraker Rockfish

146

0.03*

2,928

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2003	143	200301	181	79	146
Survey	1996	23	199601	28	63	136
Survey	1996	23	199601	130	81	127
Survey	2006	143	200601	64	96	124
Survey	2005	134	200501	155	67	116

Shortspine Thornyhead

0.09*

107

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2014	SF	201401	3401	48	47
Survey	2014	SF	201401	3403	52	40
Survey	2014	SF	201401	3404	40	33
Survey	2014	SF	201401	3414	44	33
Survey	2014	SF	201401	3405	41	31

Silvergray Rockfish

0.05*

980

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2005	143	200501	38	68	79
Survey	2013	143	201301	12	71	74
Survey	2009	94	200901	70	58	73
Survey	2013	176	201301	71	71	71
Survey	2011	148	201101	170	69	70

Roundfish

Arctic Cod

0.53*

4,135

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	1976	21	197602	123	25	8
Survey	1976	21	197602	230	20	7
Survey	1976	21	197602	231	21	6
Survey	1976	21	197602	229	20	6
Survey	1976	21	197602	223	19	6

Atka Mackerel

0.25

55,271

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2012	143	201201	57	42	17
Survey	2014	143	201401	6	54	16
Survey	2014	143	201401	7	53	16
Survey	2014	143	201401	47	54	16
Observer	1994	A009	2797	145	46	15

Bigmouth Sculpin

0.18*

128

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2004	89	200401	6	75	23
Survey	2004	88	200401	36	65	21
Survey	2004	89	200401	19	68	20
Survey	2004	134	200401	92	62	20
Survey	2004	134	200401	104	76	20

Giant Grenadier

0.07*

1,477

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2006	96	200601	75	34	58
Survey	2013	81	201301	265	32	56
Survey	2004	96	200401	94	35	54
Survey	2013	81	201301	261	31	54
Survey	2002	57	200202	54	31	54

Great Sculpin

0.26*

596

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2005	88	200501	95	78	16
Survey	2005	89	200501	5	71	16
Survey	2005	89	200501	10	78	15
Survey	2005	88	200501	105	54	15
Survey	2005	88	200501	145	54	15

Pacific Cod

0.25

88,768

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2007	88	200701	729	91	17
Survey	2005	143	200501	10	71	14
Survey	2005	89	200501	248	96	14
Survey	2011	162	201101	63	102	14
Survey	2003	88	200301	500	89	14

Pacific Hake

0.17

26,038

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	1995	21	199510	2733	47	25
Observer	1997	A291	4458	197	60	24
Observer	1997	A291	4458	465	51	24
Survey	1998	23	199801	307	51	23
Observer	1997	A105	4444	15	63	23

Plain Sculpin

0.26*

952

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2005	88	200501	121	47	16
Survey	2008	88	200801	142	54	15
Survey	2006	134	200601	227	60	15
Survey	2005	88	200501	167	54	15
Survey	2006	88	200601	181	51	15

Sablefish (black Cod)

0.04

80,254

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	1989	523	198901	162	77	94
Observer	2014	A628	19317	932974	98	86
Observer	2013	75679	17880	894440	69	85
Observer	2014	75679	19527	970722	71	83
Observer	2012	A627	15156	729881	82	82

Saffron Cod

0.53*

1,246

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2012	162	201202	43	36	8
Survey	1976	21	197602	521	35	7
Survey	1976	21	197602	145	31	6
Survey	1976	21	197602	146	31	6
Survey	1976	21	197602	147	32	6

Walleye Pollock

0.13

394,549

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Observer	1990	A055	209	326	58	31
Survey	2007	89	200701	365	57	29
Survey	1989	522	198901	33	52	27
Survey	2014	162	201401	68	79	26
Survey	1991	793	199103	706	79	26

Warty Sculpin

0.23*

682

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2004	89	200401	49	53	18
Survey	2006	88	200601	75	53	17
Survey	2004	88	200401	61	52	17
Survey	2003	88	200301	87	49	15
Survey	2006	134	200601	76	46	15

Yellow Irish Lord

0.14*

1,400

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2009	89	200901	82	44	30
Survey	2010	143	201001	10	39	28
Survey	2005	88	200501	60	43	28
Survey	2010	143	201001	115	50	27
Survey	2009	88	200901	92	45	26

Skates

Alaska Skate

0.16*

1,068

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2008	88	200801	53	137	26
Survey	2007	88	200701	87	110	20
Survey	2007	88	200701	42	103	18
Survey	2007	88	200701	79	105	18
Survey	2009	89	200901	148	104	16

Big Skate

0.32*

228

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2015	176	201501	33	174	13
Survey	2015	178	201501	12	130	13
Survey	2009	159	200901	34	158	12
Survey	2015	178	201501	9	168	12
Survey	2009	159	200901	36	102	12

Longnose Skate

0.18*

355

Collection Type	Year Collected	Vessel Code	Cruise	Specimen #	Length (cm)	Age
Survey	2009	143	200901	144	120	23
Survey	2009	143	200901	162	139	22
Survey	2009	159	200901	100	119	22
Survey	2009	94	200901	15	120	22
Survey	2009	94	200901	5	138	21

Data as of 2024

*Sample sizes are probably insufficient to establish max age and natural mortality rate estimates for these species.

  Before using any data from our website please read our disclaimer.

  Click on a fishes scientific name to see the five oldest samples. Click on it again to hide this information.

  Maximum age data is from ages generated between 1990 and 2024 except Pacific cod, which is limited to collections read after 2000.

  Natural mortality (M) is estimated using the method outlined by Hoenig (1983) (full article PDF) which uses maximum age to estimate instantaneous mortality.

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