Salinity effects

Benthic macroinfaunal communities

Reference

Montagna & Palmer (2010)

Study location
Texas
United States
Salinity tolerance results

A field study was done in an estuary that normally has a low salinity <25 psu. When the salinity exceeded 25 psu, macrofaunal biomass appeared to decrease in density.

Benthic meiofaunal communities

Reference

Irlbeck & Ward (2000)

Study location
Texas
United States
Salinity tolerance results

Benthic meiofaunal communities were observed to be most abundant where waters had salinity values of between 10 and 40 ppt. Greatest abundance was noted at 18 to 22 ppt.

Benthic molluscs

Reference

Montagna et al. (2008)

Study location
Florida
United States
Salinity tolerance results

Able to thrive in salinities <1 psu, Corbicula fluminea, Rangia cuneata, and Neritina usnea are good indicators of freshwater environments. Preferring mid to high range salinities (<10-15 psu), Tagelus plebeius, Crassostrea virginica, Mulinia lateralis, Littoraria irrorata, and Ischadium recurvum can be used to indicate that the environment is brackish or marine.

Benthic molluscs and annelids

Reference

TDWR (1980a)

Study location
Texas
United States
Salinity tolerance results

Littoridina sphinctosoma, Mediomastus californiensis and Rangia cuneata were observed to be quite euryhaline across the Lavaca Bay, as they were abundant at each sampling site despite salinity levels not being equivalent at all sampling stations. Sites ranged between 4 ppt and 24 ppt.

Benthic molluscs and annelids

Reference

TDWR (1980b)

Study location
Texas
United States
Salinity tolerance results

Benthic gastropods and bivalves a higher biomass in regions where salinity is at 8-16 ppt. Annelids were most abundant in regions of higher salinity of about 20-32 ppt. Measurements of biomass were taken from the San Antonio Bay.