Table 4.

Breakdown of marine animal species by functional group and IUCN assessment status. Listed for each IUCN assessment status are the total number of species per functional group, the number of these species with occurrences in OBIS and the associated percentage.

functional group	IUCN assessment status
	not assessed			data deficient			threatened			non-threatened
	N (species)	N (species in OBIS)	% species in OBIS	N (species)	N (species in OBIS)	% species in OBIS	N (species)	N (species in OBIS)	% species in OBIS	N (species)	N (species in OBIS)	% species in OBIS
benthos	144 097	73 610	51	749	530	71	305	258	85	1400	1 206	86
zooplankton	5742	3027	53	0	0	—	4	2	50	2	2	100
nekton	3076	1878	61	160	127	79	7	2	29	156	151	97
fish	8599	6161	72	1780	1350	76	523	457	87	7359	6997	95
mammals	66	26	39	20	17	85	36	29	81	70	68	97
birds	179	71	40	1	0	0	125	92	74	382	340	89
reptiles	20	9	45	21	14	67	11	11	100	44	37	84
other/unknown	31 891	9725	31	3	3	100	10	4	40	11	9	82
totals	193 670	94 507	49	2734	2041	75	1021	855	84	9424	8810	94