Mangrove forests serve as critical nursery habitat for hundreds of fish species, and their destruction for aquaculture and coastal development removes essential welfare-sustaining habitat from vast fish populations.
Mangrove destruction removes the physical environment that juvenile fish depend on for predator refuge, food, and thermal stability during their most vulnerable life stage. Without mangrove nursery habitat, fish recruitment into adult populations collapses. While individual fish welfare in mangroves is not easily observed, the scale of habitat loss — and resulting population-level collapse — represents a form of systemic welfare harm affecting billions of individual fish. Mangrove shrimp aquaculture creates a direct trade-off: intensive shrimp farming destroys the habitat that sustains wild fisheries populations that coastal communities depend on. Restoration and protection of mangroves is simultaneously a biodiversity, food security, and animal welfare intervention.