Table 2. Chondroitin Sulfate Measurements^a.

	all samples (n = 32) (μg/mg dried tissue)		intact samples (n = 14) (μg/mg dried tissue)		gaping samples (n = 18) (μg/mg dried tissue)
chondroitin sulfate	average	SD	average	SD	average	SD	statistics (Welch’s t-test)
total dp2	0.9148	0.2683	0.9833	0.317	0.8615	0.1983	p = 0.238
dp2 [1,0,1,0,1]	0.3573	0.0994	0.3541	0.953	0.3598	0.1023	p = 0.876
dp2 [1,0,1,1,1]	0.4786	0.1706	0.5419	0.2192	0.4293	0.0939	p = 0.081
dp2 [1,0,1,2,1]	0.0798	0.0452	0.0894	0.0546	0.0722	0.0343	p = 0.331
dp1	0.032	0.011	0.0321	0.0129	0.032	0.0093	p = 0.985
dp3 [0,1,2,3,2]	0.00111	0.00137	0.00103	0.00101	0.00126	0.0016	p = 0.786
dp3 [1,1,1,1,1]	1.505	0.2203	1.4917	0.1269	1.5154	0.2755	p = 0.749
dp4	0.0494	0.0309	0.0398	0.0281	0.057	0.031	p = 0.123
dp5	0.00201	0.00112	0.0079	0.00111	0.00206	0.00111	p = 0.807
dp6	0.00026	0.00032	0.0003	0.00043	0.00022	0.00019	p = 0.515
dp8	0.00066	0.00103	0.00041	0.00099	0.00086	0.00103	p = 0.230
chain length	99.8	23.65	104.3	29.57	96.6	18.82	p = 0.385

dp2 distribution (%)
[1,0,1,0,1]	39.6	7.0	37.2	7.1	41.5	6.5	p = 0.088
[1,0,1,1,1]	52.0	5.7	54.1	5.5	50.4	5.5	p = 0.071
[1,0,1,2,1]	8.4	2.3	8.8	2.5	8.1	2.2	p = 0.446

^aWelch’s t-test was used to test for differences between intact (n = 14) and gaping (n = 18) samples. The chain length was estimated by dividing the total CS saccharide measurements adjusted to disaccharide units with the amount detected of saturated dp1, dp3, and dp5, which originate from the nonreducing end.