International Academy of Ecology and Environmental Sciences Arthropods 2224-4255 15 2 2026 6 1 Diversity, distribution and seasonal abundance of mangrove associated brachyuran crabs along the Karachi Coast 78-89 EN Huma Khan Farzana Yousuf Qadeer Mohmmad Ali Quratulan Ahmed Farhana S. Ghory Ateeqa Baloch http://www.iaees.org/publications/journals/arthropods/articles/2026-15(2)/diversity-distribution-and-seasonal-abundance-of-crabs.pdf> Crabs are referred as keystone species of mangrove ecosystem and are essential as their burrowing habit promotes bioturbation and organic matter degradation that sustain the health of mangrove forests. The present research is an attempt to review the diversity of crabs in two mangrove areas of Karachi: Sandspit backwater and Korangi-Phitti creek, emphasizing the importance of mangrove ecosystems as habitats for brachyuran crabs and highlights the intricate interplay between seasonal variations and species composition. The sampling was conducted on seasonal basis pre-monsoon (January-February), monsoon (August-September) and post-monsoon (November-December). By documenting 14 species and analyzing upto species level distributions across the Sandspit backwater and Korangi-phitti creek areas, this research provides a comprehensive baseline for future ecological and conservation focused studies in Pakistan's coastal mangroves.