Table 1.

Cellular attributes and heat production for eight marine phototrophic protists

Organism	Cells	Mass	Volume	Surface area	Heat	Heat	SA/vol	C/vol	C:SA	Heat flux
		pg C	μm3	μm2	pW cell−1	pW pgC−1	μm2/μm3	pg C/μm3	pg C/μm2	pW/μm2
Micromonas pusilla (2)*	2.23 × 106	2.36	0.904	4.5	0.081 ± 0.057	0.033 ± 0.024	5.0000	2.63	0.524	0.018 ± 0.012
Thalassiosira pseudonana (1)	6.18 × 10 5	9.17	31.4	56.5	0.66	0.069	0.8003	0.292	0.365	0.026
Geminigera cryophila (2)*	8.25 × 104	147.9	9.01 × 102	5.33 × 102	4.85 ± 0.69	0.032 ± 0.005	0.6111	0.164	0.269	0.009 ± 0.001
Myrionecta rubra (3)*	1.41 × 104	1711	8.19 × 103	1.65 × 103	70.67 ± 9.89	0.041 ± 0.013	0.2270	0.209	0.920	0.038 ± 0.010
Coscinodiscus sp. (2)	3.37 × 104	913	1.26 × 104	3.04 × 103	16.67 ± 1.66	0.018 ± 0.002	0.2403	0.072	0.301	0.006 ± 0.001
Akashiwo sanguinea (2)*	1.43 × 103	3763	5.32 × 104	1.42 × 104	203 ± 37.3	0.054 ± 0.010	0.266	0.071	0.266	0.014 ± 0.003
Coscinodiscus wailesii (2)	420	78000	2.66 × 106	1.08 × 105	1980 ± 347	0.025 ± 0.004	0.0406	0.029	0.722	0.018 ± 0.003
Pyrocystis noctiluca (2)*	37	22817	4.11 × 106	1.26 × 105	5004 ± 1260	0.182 ± 0.046	0.0300	0.005	0.181	0.039 ± 0.011

Number of replicates in parentheses.

*, Capacity for motility