The Mokarsagar wetland complex is a group of wetlands incl. Medha creek, Kuchhadi, Subhashnagar, Zavar, Kurly I, Karly II, Vanana, Dharampur, Gosabara, Bhadarbara, Mokarsagar, Bardasagar and Amipur of Porbandar district of Gujarat.
The wetland complex is a lifeline for the community as well as the wetland-dependent biodiversity including both the flora (mangrove, macroalgae, macrophytes) and fauna (birds, reptiles, insects and mammals). Gosabara is a part of Tukda village where fishermen families live along with some other communities (Kishore Joshi, pers. comm. 2015). Gosabara is a creek, which opens inland into Mokarsagar, an extensive marsh complex which has evolved in the shallow depression at the delta of River Bhadar. Gosabara is the main entrance of Mokarsagar wetland as per as birding is concern. The wetland remains unrecognized since a long time so birding fraternity has named the wetland as Gosabara.Moreover, Karly Gosabara irrigation project joins Gosabara and Karly I & II wetlands through a continuous stretch of waterbody so many birders also call this wetland as “Karly Gosabara” wetland. Karly reservoir is a low-lying region which is seasonally flooded during monsoon with fresh water from upstream areas. Before 1970’s, this region was an intertidal mudflat where sea water from Arabian sea near village Gosa could enter inland and mix with upstream runoff collected in the depressed land during monsoon season. This mixing of freshwater and sea water adversely affected the groundwater quality and agriculture locally. In order to prevent this mixing and store upstream freshwater runoff for longer period of time, Salinity Ingress Prevention Cell (SIPC), Gujarat, built structures across the creek such as tidal regulators (masonry wall) and bunds at different locations. These structures prevented the mixing of freshwater and seawater, thus, increasing the availability of water. A continuous stretch of Porbandar Bird Sanctuary, Chaaya –I, Chaaya-II and Porbandar Rann talao forms a Rann of approximately 10 sq km which is separated from the Mokarsagar wetland complex through a Jadeswar Road. Kuchhadi –Jhavar wetland adjacent to Shaurastra salt pan in Subhashnagar (also known as Karly creek) is another wetland complex of 4-5 sq. km is connected with the wetland complex through a patch of tidal mud with of 4-5 km mangrove patch via Karly I and Karly II wetlands. While two man-made Amipur reservoir of 15.81 sq km and Barda Sagar of 18-20 sq. km are important wetlands which during heavy rainfall attach with each other to form a vast expand of water of about 200 sq km.