List Length-Weight Relationship

Length-Weight Parameters for Squalus acanthias
Length-weight (log a vs b) graph							[n=39] Hide graph
a b Country Locality

Score	a	b	Doubtful?	Sex	Length (cm)	Length type	r²	SD b	SD log₁₀ a	n	Country	Locality
	0.01250	2.619	yes	juvenile	41.0 - 52.0	TL	0.957	0.226		8	Turkey	northern Sea of Marmara, 2006-2007 (Nov.-Mar.)
	0.01530	2.757		Mixed	25.2 - 142.7	TL	0.981					Black Sea
	0.01120	2.775		female	27.0 - 70.5	TL	0.821			16	Turkey	North Aegean Sea, 1999-00
	0.00720	2.868		male	20.8 - 87.5	TL	0.956	0.076		253	Turkey	Saros Bay / 2005-2008.
	0.00595	2.889		female							UK Scotland	North East Atlantic, 3rd quarter
	0.00576	2.890		male							UK Scotland	North East Atlantic
	0.00449	2.965		male	23.0 - 90.0	TL	0.972			3117	USA	Atlantic coast / Autumn 1992-1999.
	0.00410	2.984		Male	25.5 - 97.5	TL	0.982			127		North Sea / 1994-2008
	0.00373	2.990		male	22.0 - 94.0	TL	0.980			3691	USA	Atlantic coast / Winter 1992-1999.
	0.00356	3.000		male	20.0 - 91.0	TL	0.974			4676	USA	Atlantic coast / Spring 1992-1999.
	0.00340	3.000		unsexed	36.5 - 75.5	TL				2		Northwestern Mediterranean / 2011-2013.
	0.00310	3.040		male	25.0 - 92.0	TL	0.934	0.010	0.0290	12584	New Zealand	New Zealand EEZ / 1976-2013.
	0.00370	3.048		mixed	17.1 - 115.0	TL	0.967	0.047		565	Turkey	Saros Bay / 2005-2008.
	0.00275	3.050		male		FL					New Zealand	QMA3
	0.00313	3.060		mixed	22.0 - 106.0	TL	0.973			6986	USA	Atlantic coast / Autumn 1992-1999.
	0.00270	3.090		unsexed		TL				7		Flemish Cap, NW Atlantic, 1988-2002 (July)
	0.00309	3.090		female	51.5 - 76.5	TL	0.830	0.460		40	Turkey	off Gökçeada Island, Northern Aegean Sea / 2019.
	0.00270	3.100		female	22.0 - 106.0	TL	0.976			3869	USA	Atlantic coast / Autumn 1992-1999.
	0.00310	3.106		mixed	27.0 - 70.5	TL	0.963			32	Turkey	North Aegean Sea, 1999-00
	0.00310	3.110	yes	juvenile	27.0 - 70.5	TL	0.980	0.160		32	Turkey	North Aegean Sea, 2003 (March; July)
	0.00222	3.123		mixed	22.0 - 109.0	TL	0.975			7534	USA	Atlantic coast / Winter 1992-1999.
	0.00270	3.128		female	17.1 - 115.0	TL	0.975	0.056		312	Turkey	Saros Bay / 2005-2008.
	0.00230	3.129		unsexed	24.5 - 115.5	TL	0.982			273		North Sea / 1994-2008
	0.00200	3.150		mixed	19.1 - 117.3	TL	0.987	0.349		421	Croatia	Eastern Adriatic Sea / 1997-2001.
	0.00100	3.153		unsexed	112.0 - 144.0	TL	0.810	0.844		22	Bulgaria	Black Sea, 2006-2008
	0.00232	3.160		mixed	46.9 - 76.5	TL	0.880	0.350		48	Turkey	off Gökçeada Island, Northern Aegean Sea / 2019.
	0.00213	3.163		unsexed	49.4 - 102.0	FL	0.949			535	New Zealand
	0.00180	3.170		mixed	13.0 - 114.0	TL	0.971			12070	USA	Atlantic coast / Spring 1992-1999.
	0.00215	3.180		male	46.9 - 59.0	TL	0.850	1.350		8	Turkey	off Gökçeada Island, Northern Aegean Sea / 2019.
	0.00230	3.182		male	38.0 - 56.5	TL	0.988			16	Turkey	North Aegean Sea, 1999-00
	0.00161	3.210		female	22.0 - 109.0	TL	0.981			3843	USA	Atlantic coast / Winter 1992-1999.
	0.00147	3.220		unsexed		TL					South Africa
	0.00150	3.240		female	13.0 - 114.0	TL	0.975			7393	USA	Atlantic coast / Spring 1992-1999.
	0.00150	3.249		Female	24.5 - 115.5	TL	0.992			108		North Sea / 1994-2008
	0.00139	3.250		female		FL					New Zealand	QMA3
	0.00108	3.301		female							UK	North East Atlantic, 1st, 2nd & 3rd quarter
	0.00120	3.310		female	26.0 - 107.0	TL	0.965	0.010	0.0378	19818	New Zealand	New Zealand EEZ / 1976-2013.
	0.00090	3.360		mixed	25.0 - 107.0	TL	0.956	0.010	0.0000	32402	New Zealand	New Zealand EEZ / 1976-2013.
	0.00077	3.371		mixed		TL				691	UK Engld Wal	not specified (ICES division), 1986

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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 = 36, geometric mean a = 0.0026, mean b = 3.10, SD log10(W) = 0, SD log10(a) = 0.2787 SD b = 0.1439
Estimate weight for given length: (cm) = (g) 95% range - (g)

Search for more references on length-weight: Scirus

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