Table 2. Bulk carbon isotopic composition and fatty acid (FA) percent of total FA profile of each dorvilleid polychaete species included in analysis.

	Exallopus spp.	Ophryotrocha maciolekae	Ophryotrocha platykelphale	Parougia oregonensis	Parougia sp.	Dorvilliea sp.
n	5	3	11	2	1	2
δ13C	−45.0±3.5	−24.5±0.6	−26.2±2.4	−52.6	−39.4	−91.5
14:0	2.3±0.4	3.5±0.9	1.5±0.4	2.4		0.9
16:1(n−7)	11.7±1.3	4.5±1.9	5.6±1.1	2.4	3.3	1.9
16:1(n−6)	0.6±0.2		0.1±0.1	0.1
16:1(n−5)	3.1±1.3		0.2±0.1	0.6	0.8	1.6
16:0	16.0±1.8	25.6±5.2	20.2±3.4	11.7	11.5	11.0
18:2n6c	1.6±0.3	0.4±0.4	1.6±0.4	0.3		0.5
18:1n9t	0.4±0.4	1.2±1.2	0.3±0.3
18:1n9c	7.0±5.8	8.2±6.9	2.5±0.4	1.0	0.8	1.4
18:2n6t	1.6±1.6	1.4±0.7	0.4±0.4
18:1(n−7)	27.8±6.7	7.4±3.7	22.0±3.6	48.5	48.3	39.9
18:2b	6.9±2.0	0.3±0.3	6.4±1.2	3.3
18:1(n−5)	1.3±0.5		0.2±0.2	1.3	1.4	4.4
18:0	3.9±1.9	20.3±9.3	9.4±2.4	2.7	2.5	3.2
cyc19			0.9±0.3		0.7
20:4n6	0.6±0.2	2.5±1.4	1.0±0.3	0.6	2.3	1.4
20:5n3	7.6±1.8	13.8±5.4	9.4±1.7	7.8	21.6	18.8
20:2	0.9±0.9	3.0±1.5	3.0±0.9	0.8
20:1(n−13)	2.9±0.8	2.2±2.2	1.1±0.8	3.8	5.6	6.9
20:1(n−9)a		0.9±0.9
20:1(n−7)	1.3±0.6		0.9±0.5	0.6	1.1	0.7
20:1a	0.4±0.4	0.7±0.7	0.8±0.6			3.2
20:3	0.4±0.4		1.7±0.6
20:0	0.5±0.5	1.9±0.9	0.5±0.3			3.0
21:0			0.1±0.0
22:0			0.5±0.3	3.3
23:0		0.4±0.4	3.2±2.5	3.9
24:1			0.3±0.3
24:0			0.3±0.3

Isotopic data are provided for either a fraction of the individual extracted for lipids or from individuals within the same core or scoop sample; s.e. is given. Only data are presented for samples that corresponded to an isotopic measure and only FAs are presented that made up at least 1% of any one sample.

^aIndicates that double-bond position was estimated from retention time rather than DMDS adduct formation.