Search FishBase
Language: English | Chinese | French | Greek | Thai |
More info | Plus d'info. | Mais info

Length-Weight Parameters for Gadus morhua
[n=52]
Hide graph
Length-weight (log a vs b) graph
a b Country Locality
Score a b Doubtful? Sex Length (cm) Length
type 		r2 SD b SD log10 a n Country Locality
0.02040 2.820   female 41.0 - 94.0 TL  0.890      167  Germany Bay of Kiel/2020 
0.01440 2.910   male 38.0 - 79.7 TL  0.900      82  Germany Bay of Kiel/2020 
0.01170 2.916   Male             1552  Germany Baltic, ICES SD 25 
0.00920 2.950   mixed     TL  0.990      1372  Barrents Sea / 1988. 
0.01130 2.958   male             990  Germany Baltic, Arkona Basin, ICES SD 24 
0.00989 2.965   mixed             3075  Germany Baltic, ICES SD 25 
0.01080 2.968   Mixed             2146  Germany Baltic, Arkona Basin, ICES SD 24 
0.01040 2.977   female             1156  Germany Baltic, Arkona Basin, ICES SD 24 
0.00927 2.987   female             1523  Germany Baltic, ICES SD 25 
0.00818 3.000   mixed     TL  0.980      582  Barrents Sea / 1986. 
0.01040 3.000   unsexed               UK North Sea 
0.00813 3.030 yes  juvenile 15.0 - 38.0 TL  0.992      26  Denmark Baltic, Kattegat 
0.00953 3.031   unsexed               UK Scotland Western 
0.00800 3.035   unsexed 5.5 - 120.5 TL  0.995      1210  North Sea / (October) 1995-2006 
0.00747 3.041   mixed     FL  0.990      9676  Greenland off Greenland / 1982-1998 
0.00760 3.049   unsexed 5.5 - 120.5 TL  0.995      1737  North Sea / (Quarter 4) 1994-2006 
0.00810 3.049   unsexed 3.5 - 99.5 TL  0.992      1042  North Sea / (June) 1994-2005 
0.00730 3.052   unsexed 7.5 - 126.5 TL  0.995      5346  North Sea / (January) 1994-2007 
0.00775 3.053   mixed 13.0 - 116.0 TL  0.990      755  USA Atlantic coast / Winter 1992-1999. 
0.00835 3.053   unsexed 6.0 - 95.0 TL  0.994        France East and West Channel 
0.00743 3.060   mixed 5.0 - 121.0   0.993  0.000 0.0035 52546  Eastern Baltic Sea (cod-2532), Sub-Division 25-32, 2000-2011 
0.00743 3.060   mixed 5.0 - 121.0 TL  0.993  0.000 0.0035 52546  Eastern Baltic Sea, Subdivision 25-32 
0.00765 3.060   mixed 4.0 - 141.0 TL  0.990      3206  USA Atlantic coast / Spring 1992-1999. 
0.00750 3.061   unsexed 5.5 - 112.5 TL  0.988      2351  North Sea / (August) 1994-2006 
0.00740 3.069   unsexed 4.5 - 118.5 TL  0.992      2718  North Sea / (July) 1994-2006 
0.00720 3.072   unsexed 4.5 - 118.5 TL  0.989      5714  North Sea / (Quarter 3) 1994-2006 
0.00726 3.073 No  unsexed 2.5 - 108.0 TL  1.000  0.011 0.0177 468  UK Scotland Scotland, 1903 
0.00690 3.086   unsexed 3.5 - 119.5 TL  0.992      2529  North Sea / (Quarter 2) 1994-2006 
0.00700 3.087   unsexed     TL        1033  UK Engld Wal not specified (ICES division), 1986 
0.00670 3.087   unsexed 4.5 - 119.5 TL  0.992      1386  North Sea / (May) 1994-2006 
0.00683 3.094   mixed 10.0 - 110.0 TL        9145  Germany Baltic, Kiel Bay, ICES SD 22 
0.00650 3.098   unsexed 3.5 - 120.5 TL  0.993      16665  North Sea / 1994-2007 
0.00669 3.100   mixed 5.0 - 119.0 TL  0.994  0.000 0.0052 19139  Western Baltic Sea, Sub-division 22 & 24 
0.00669 3.100   mixed 5.0 - 119.0   0.994  0.000 0.0052 19139  Western Baltic Sea (cod-2224), Sub-Division 22 & 24, 2000-2011 
0.00680 3.101   Unsexed 5.0 - 100.0 TL  0.998      1000  Netherlands North Sea 
0.00536 3.110   mixed     TL  0.940      820  Barrents Sea / 1985. 
0.00600 3.111   unsexed 10.5 - 119.5 TL  0.994      3533  North Sea / (February) 1994-2007 
0.00620 3.111   Male 8.5 - 118.5 TL  0.994      7317  North Sea / 1994-2009 
0.00600 3.112   unsexed 7.5 - 101.5 TL  0.994      445  North Sea / (November) 1996-2006 
0.00620 3.112   unsexed 9.5 - 111.5 TL  0.983      645  North Sea / (September) 1995-2006 
0.00610 3.114   Female 6.5 - 119.5 TL  0.994      7370  North Sea / 1994-2009 
0.00619 3.130   unsexed 4.0 - 120.0 TL  0.993      3078  USA Atlantic coast / Autumn 1992-1999. 
0.00587 3.140   mixed 9.0 - 123.0   0.995  0.010 0.0090 6755  North Sea (cod-347d), Sub-area IV, Division VIId & IIIa (Skagerrak), 2000-2011 
0.00587 3.140   mixed 9.0 - 123.0 TL  0.995  0.010 0.0090 6755  North Sea, Sub-area IV, Division VIId and IIIa (Skagerrak) 
0.00580 3.144   mixed 15.0 - 106.0 TL          Germany Baltic, ICES SD 25 
0.00515 3.150   mixed     TL  0.990      1190  Barrents Sea / 1984. 
0.00530 3.153   unsexed 8.5 - 113.5 TL  0.989      382  North Sea / (March) 1994-2005 
0.00530 3.167   unsexed 10.5 - 117.5 TL  0.995      101  North Sea / (April) 1995-2006 
0.00500 3.169   unsexed 7.5 - 126.5 TL  0.994      9355  North Sea / (Quarter 1) 1994-2007 
0.00550 3.171   unsexed 10.5 - 114.5 TL  0.996      300  North Sea / (December) 1992-2006 
0.00500 3.185   unsexed 11.0 - 126.0 TL    0.876 0.0000 1452  North-eastern Atlantic Ocean / 2013-2015. 
0.00079 3.819   unsexed 5.0 - 55.0 TL  0.814      11  North Sea / 2003-2004. 
hide

Preliminary parameter estimates are provided below, based on your selection of studies and weighted by the scores.
You may want to exclude or give less weight to studies that are far from the regression line in the graph.
Selected studies = 51, geometric mean a = 0.0069, mean b = 3.08, SD log10(W) = 0.0361, SD log10(a) = 0.1715 SD b = 0.1221
Estimate weight for given length: (cm) = (g) 95% range - (g)
Search for more references on length-weight:    Scirus
Back to Search
Back to Top