Table 1.

Sequencing statistics and estimated PE ASVs richness and diversity index Chao 1 obtained from metabarcoding analysis of one water sample and sediment trap samples in the Kara Sea picoeukaryote communities.

Sample	Date/ Period	Total No. of V4 Tag Quality Sequences	Quality Sequences	No. of Protist Reads	No. of Protist ASVs	No. of Photosynthetic Eukaryotes Reads	No. of Photosynthetic Eukaryotes ASVs	Chao1
5976	8 September	304,129	129,900	127,795	89	27,164	28	22
T1	September	157,252	118,966	94,543	62	36,344	16	13
T2	October	110,720	86,035	74,141	47	38,955	13	11
T3	November	202,474	160,279	139,922	66	74,172	19	14
T4	December	127,790	93,930	71,426	45	21,589	13	7
T5	January	260,009	217,018	177,565	71	47,926	22	15
T6	February	190,536	146,055	125,063	106	33,073	31	19
T7	March	236,408	153,141	133,153	257	40,360	81	46
T8	April	221,949	145,227	94,280	85	15,347	21	13
T9	May	232,284	159,887	137,194	169	45,242	56	26
T10	June	385,572	105,569	76,089	55	30,434	17	10