GOZ018 - Tas-Sellum Watercourse


Tas-Sellum Watercourse are two interconnected dam lakes, located in central Gozo, within Rabat. The site is accessible by the public through a footpath and surfaced road. The dam lakes cover an approximate area of 3,220m2. The northern region of the dam lakes is surrounded by active agricultural land, whilst the southern region lies alongside a surfaced road on the western basin, and agricultural land on the eastern basin. Eucalpytus spp. was present towards the north-eastern region of the dam lake. This site is not protected by any legislation.

Wetland data

Basic information
Wetland location: Inland
Wetland type: Artificial
Wetland area: 0.30 Ha
Hydrological interaction: Yes 
Water salinity: Fresh (< 0.5 g/l)
Type of fresh water input: Catchment area (precipitation)
Surface water runoff Outflow controlled by pipeline
Open water area (%): > 95
Hydroperiod: Permanent
Geographic information
Census district: Gozo and Comino
Island: Gozo
Local council: Ir-Rabat, Ghawdex
Longitude: 14.250270 East
Latitude: 36.044850 North
Biological significance
Biological significance: Low
Ramsar wetland type
Type Coverage (%)
6 -- Water storage areas; reservoirs/barrages/dams/impoundments (generally over 8 ha)
Property status
Ecosystem services
Type of ecosystem service Ecosystem service Scale of Βenefit (%) Importance
Regulatory services Flood hazard regulation
Provisioning services Fresh water
Regulatory services Storm hazard regulation
Regulatory services Water regulation
Activities on wetland
Activity Intensity
020 = Resource conservation High
130 = Irrigation High
502 = roads motorways High
701 = water pollution High
790 = Other pollution/human impacts/activities Low
Activities on catchment area
Activity Intensity
100 = Cultivation High
110 = Use of pesticides High
120 = Fertilisation High
130 = Irrigation High
402 = discontinuous urbanisation Low
430 = Agricultural structures High
502 = roads motorways High
790 = Other pollution/human impacts/activities Low
Impact Intensity
EB- = Increase in aesthetic qualities High
EE- = Increase of economic potential High
EF- = Increase in protection from natural forces High
ER- = Increase in flow regulation High
ES- = Increase in water supply Low
PF- = Fertilizer/Excess nutrient pollution
PH- = Increase of pH
PP- = Pesticide pollution
Vegetation types
Type Coverage (%)
Shrubby / Arborescent < 5
Species Presence status References
Eucalyptus sp.