An annotated checklist of the Branchiopoda (Crustacea) of the Dutch Caribbean islands Author Soesbergen, Martin Author Sinkeldam, Jos text Zootaxa 2019 2019-11-26 4701 1 25 34 journal article 24796 10.11646/zootaxa.4701.1.2 da3d32f7-982b-4a5e-a5e6-41cd13f5f790 1175-5326 3557797 6C9D4E59-5E2A-4128-9B18-9A9D3C57072D Family Podonidae Mordukhai-Boltovskoi, 1968 Evadne tergestina Claus, 1864 . This is a common species in coastal and pelagic waters of the Caribbean Sea ( Della Groce & Angelino 1987 ). Recorded in Jamaica ( Lue & Webber 2014 ), Cuba ( Elías-Gutiérrez & Varela 2009 ) and the Colombian coast ( Franco-Herrera et al. 2006 ). It is also believed to be present in the seas around the Dutch Caribbean. An overview of all taxa found on the islands is given ( Table 1 ). No species are known in St. Eustasius and Saba and only two large branchiopods are known in Curaçao . Bonaire is the most species rich, with ten. The collected data on salinity, conductivity, pH, temperature and oxygen are summarized ( Table 2 ). The mean, minimum, and maximum values are given. Great differences in salinity and conductivity are present between the lakes. Fresh Pond, as the name tells, is the freshest, with salinity of less than four (oligo-mesohaline). Fresh Pond is mostly dominated by cyanobacteria, primarily Microcystis . Great Salt Pond is polyhaline and Little Bay Pond is mesohaline. Neither are dominated by cyanobacteria. TABLE 1. Overview of taxa on the Dutch Caribbean islands: A –Aruba, B—Bonaire, C—Curaçao, E—St. Eustasius, M—St. Maarten, S—Saba and SEA—Caribbean sea. X records from samples St. Maarten.

Species	A	B	C	E	M	S	SEA
Artemia franciscana Kellog, 1906	X	X	X	X
Ceriodaphnia quadrangula O.F. Müller, 1785	X
Ceriodaphnia rigaudi Richard, 1894	X	X
Dendrocephalus spartaenovae Margalef, 1961	X
Diaphanosoma sp.	X
Eulimnadia tropica Rammner, 1933	X
Evadne tergestina Claus, 1864	X
Leberis davidi (Richard, 1895)	X
Leptestheria venezuelica Daday, 1923	X
Moina ciliata Daday, 1905	X
Moina cf. micrura Kurz, 1874	X
Moina wierzejskii Richard, 1895	X
Ovalona glabra ( Sars, 1901 )	X	X
Penilia avirostris (Dana, 1949)	X
Simocephalus sp.	X
Thamnocephalus venezuelensis	X
Triops longicaudatus (LeConte, 1846)	X	X	X
Number of species	6	10	2	0	4	0	2

TABLE 2. mean (x̄), minimum (-) and maximum (+) measured salinity, conductivity, pH, temperature and oxygen in Fresh Pond north (FPN) and south (FPS), Little Bay Pond (LBP) and Great Salt Pond east (GSPE) and west (GSPW).

FPN	FPS	LBP	GSPE		GSPW
x	-	+	x	-	+	x	-	+	x	-	+	x	-	+
Salinity (ppt)	1,7	1,1	3,2	2,1	1,2	3,8	3,7	1,6	8,9	31,5	22,2	46,0	24,9	14,5	47,6
EC (mS/cm)	3,3	2,1	5,8	3,9	2,3	6,9	6,8	3,1	15,2	48,3	35,2	67,5	38,9	23,9	69,5
pH	9,0	8,2	9,7	9,1	8,3	9,8	9,2	8,2	10,0	8,5	8,1	9,2	8,5	7,5	9,1
T (°C)	28,4	25,4	32,1	28,8	25,4	32,7	29,1	25,0	34,7	29,3	25,1	34,2	28,8	24,9	33,2
Oxygen	9,8	2,1	22,9	10,3	1,6	22,6	10,6	1,3	20,6	7,9	0,2	19,2	8,2	0,3	19,8
(mg/l) Oxygen (%)	128	26	312	138	22	295	147	17	290	114	3	273	104	4	262

M. cf. micrura and C. rigaudi are found in Fresh Pond North and Fresh Pond South. They are absent in Great Salt Pond and Little Bay Pond. Salinity in Little Bay Pond was relative high (6.6–8.9) in September and November 2003 . From December 2003 onwards salinity was between 1.6 and 4.0.