LeMaRns

LeMaRns implements a length-based multi-species fish community model that simulates size-structured population dynamics, predation, competition, and fleet-specific fishing to inform fisheries management.

Key Features:

• Length-Structured Fish Community Model: Implements a general length-structured model that characterizes fishing activities across fleets with varying gears and species catch preferences.
• Multi-Species Interaction Analysis: Represents predation and competition among multiple fish stocks within a community context.
• LeMans Integration: Facilitates setup, execution, and analysis of outputs from the Length-based Multi-species model (LeMans).
• Diverse Parameterization Options: Supports a wide range of parameter settings to tailor ecological and management scenarios.
• Speed and Efficiency: Optimized for computational performance to enable rapid numerical simulations and analyses.

Scientific Applications:

• Multi-Species Reference Points: Derives reference points that account for species interactions to support sustainable fisheries management.
• Mixed-Fishery Dynamics: Simulates dynamics in mixed fisheries where different fleets and gear target multiple species.
• Community Indicator Analysis: Examines responses of community-level indicators to changes in fleet effort and management scenarios.

Methodology:

Builds on LeMans (Hall et al., 2006) and employs numerical simulations of length-based interactions among multiple fish species while integrating ecological data with management scenarios.