Background: Southeastern coast of Bangladesh is bestowed with saltmarsh and seagrass ecosystems. Coastal people of this region are being benefitted directly or indirectly from the resources of these ecosystems. Nevertheless, these ecosystems are vulnerable due to climate change induced impacts, no study has yet been conducted to explore the peoples’ perception about these ecosystems. Objective: This study was an effort to determine the fishers’ perception in regards to potential effect of climate change upon goods and services of these ecosystems. Methodology: Two hundred households were surveyed in two prominent areas in the southeastern coasts by using semi-structured questionnaire from December 2012 to May 2013. Results and Discussion: In both study areas, tropical cyclone (70% opined) was the major climatic hazard followed by tidal thunder storm and tidal surge. The study also reveals that the fishermen are helpless to face the effects of climate change due to their poverty especially less income source and food deficiency. Local fishermenuse saltmarsh grass for fodder followed by fuel and thatching materials. In Salimpur 17% respondents preferred bait fishing in saltmarsh bed, whereas, it was quite absent in Cox’s Bazar. In Salimpur anthropogenic causes like ship breaking industry, and in both study areas, over harvesting, uses of saltmarsh as footpath were the key reasons for the degradation of these ecosystems. In both study areas climatic hazards (35% opined) had the moderate effects on these ecosystems. This degradation was mainly accelerated due to lack of proper conservation and management practices. Conclusion: Our findings suggest that fishers’ oriented awareness programme in regards to climate change, sustainable use of these resources, development of conservation management plan (CMP) and its implementation with the active participation of community people may be the best option for its conservation, restoration and management of these productive but degraded ecosystems.