Common Guitarfish

IUCN Status: Critically Endangered | Population Trend: Decreasing

The common guitarfish is a flattened cartilaginous fish with a triangular, guitar-shaped body that bridges the morphological gap between sharks and rays. It possesses a pointed snout, ray-like pectoral fins fused to its head, and a shark-like tail with well-developed dorsal fins. As a benthic species, it inhabits soft substrates where it feeds on small fish, crustaceans, and mollusks, playing a role as a mid-level predator in coastal marine food webs.

It is ovoviviparous, giving birth to live young after internal egg development, a reproductive strategy that limits its capacity for rapid population recovery.

This species occupies shallow coastal and shelf waters, typically over sand or mud bottoms, across a broad range spanning the eastern Atlantic (from the Mediterranean and western Europe down the West African coast) and historically the Mediterranean Sea, with additional reported occurrences in scattered locations worldwide.

Its decline stems primarily from heavy fishing pressure: bottom trawling and gillnet fisheries cause substantial bycatch mortality, while the species is also directly targeted in some fisheries. Coastal habitat degradation from urban expansion, aquaculture, port and tourism development, and pollution (agricultural runoff, wastewater, and oil/gas activity) further compresses available nursery and feeding habitat. Overfishing of prey species compounds ecosystem-level pressures.

Conservation responses include international trade and protection listings, regional fisheries management measures targeting elasmobranch bycatch, and habitat protection efforts in parts of its range. However, enforcement remains inconsistent across the many jurisdictions it inhabits. Given its slow reproductive rate, ongoing habitat loss, and unregulated fishing across much of its range, the species' population trajectory remains negative, with no clear indication of recovery in the near term.

The Common Guitarfish inhabits shallow coastal waters, sandy and muddy bottoms, and seagrass beds from the intertidal zone to depths of approximately 100 meters. This species prefers temperate and subtropical waters of the Mediterranean Sea and eastern Atlantic Ocean, often found in estuaries and near-shore environments.