Tool name * CTAM

Coastal Transects Analysis Model (CTAM) is a simple visualization and decision-support tool that can assist coastal managers, practitioners, policy makers, coastal communities and other coastal stakeholders in addressing multiple present and future demands in coastal areas. CTAM analyzes interactions and flows between natural and human systems, with current emphasis on fisheries and aquatic resources, using information provided by users, coupled with literature and experts' judgment.

Category All, Decision Support
What step(s) in analysis framework 2a
What step(s) in Governance framework

Inputs required for CTAM phase I are physical description of coastal areas, existing habitats and resources, general information about fishing and other coastal activities, management approaches and tools, and coastal issues and challenges. CTAM phase II is an 'advanced' model for users with detailed information about their coastal areas. Specifically, users are asked to provide data (often as percentage or relative weights) related to habitats, fisheries (such as catches, number of fishers, number of boats, etc.), as well as information about distribution of catches, ownership of boats and origin of crew members

Data Quality Required

Modification Required

ot available

Expertise Required


Spatial and Temporal

Coastal zone


For phase I an interactive image of a coastal transect will be generated based on the inputs. Also, these coastal areas will be classified into transect types for comparison with other systems around the world. The results from CTAM Phase II are animated changes in the size of fish pool (representing the interconnectivity between fisheries and other coastal activities) and arrows showing flows of fish, cash and labour related to different types of fisheries (e.g., small-scale, large-scale, inshore, offshore).

License cost issues



Not available

Literature: References & Manuals *