Definition
Jus piscandi (Latin: "the right of fishing") is a doctrine from civil and early English law recognizing a legally cognizable right to fish in a particular body of water. The right may attach to land adjoining a watercourse, lake, or coastal waters, or it may exist as an independent privilege granted by grant, custom, or public right. In its broadest sense, jus piscandi encompasses both the private right of a riparian owner to fish in waters bordering or running through their land and the public right to fish in navigable or tidal waters.
In practice, the term appears most often in historical property disputes, fishery grants, and discussions of riparian rights — particularly in contexts where fishing rights were severed from ownership of the underlying soil or held as a distinct incorporeal hereditament.
Common Confusion
Jus piscandi is closely related to, but distinct from, jus venandi (the right of hunting). Bouvier's Law Dictionary cross-references the two terms without independently defining jus piscandi, treating the concepts as analogous. They share a common structural logic — both are use-rights that can be held independently of land ownership — but they operate in different doctrinal contexts. Fishing rights historically implicated questions of tidal and navigable waters, royal prerogative over fisheries, and public access in ways that hunting rights did not. Researchers should not assume that authority governing one right controls the other.
Why It Matters in Research
The primary research trap with jus piscandi is its dependence on civil law and early common law sources. The term largely disappears from American legal literature after the early nineteenth century, replaced by the language of riparian rights, fishing easements, public trust doctrine, and statutory fishery regulation. Researchers encountering jus piscandi in historical American materials are almost certainly working with sources that drew heavily from English and civilian tradition, and should expect the term's contours to reflect that inheritance rather than any developed domestic doctrine.
In English law, the question of who held jus piscandi was entangled with the Crown's prerogative over royal fisheries in tidal and navigable waters — a body of law with no precise American equivalent, though the public trust doctrine partially fills that role in U.S. jurisdictions. Researchers working in colonial or early republic-era materials should be alert to this transplant problem: American courts adapted the concept without always inheriting the institutional context that gave it meaning in English law.
In the Law Mind corpus, jus piscandi is most likely to surface in treatises on real property, riparian rights, admiralty, and water law. It also appears in materials touching on incorporeal hereditaments and the classification of property rights derived from Roman and civil law. Connections to jus venandi, common of piscary, and fishery as an incorporeal hereditament are the most productive research pathways from this term.
Historical Dictionary Support
Burrill's is the more useful entry. It correctly places jus piscandi in both civil law and old English law, cites Fleta (a late thirteenth-century treatise on English law) and Loccenius (a seventeenth-century civilian authority on maritime law), and conveys the term's dual heritage — rooted in Roman civil law concepts of use-rights but operative in early English practice as well. The dual citation is genuinely instructive: it signals that the right was recognized both in common law contexts (Fleta) and in the maritime and civilian tradition (Loccenius), which matters for understanding how the term migrated into American legal writing.
Bouvier's entry is unhelpfully thin, offering only a cross-reference to jus venandi without defining jus piscandi on its own terms. This reflects a broader pattern in Bouvier's of treating Roman-law fishing and hunting rights as interchangeable, which understates the distinct doctrinal history of fishery rights in English and admiralty contexts.
Neither dictionary addresses the distinction between a private right of fishery (held by a riparian owner or by grant) and a public right of fishery in navigable or tidal waters — a distinction that became central in both English and American law. Researchers relying solely on these sources for that question will need to supplement with treatises on riparian rights and public trust doctrine.
Jurisdictional Note
In American law, the substance of jus piscandi is largely governed by state water law and varies considerably by jurisdiction, particularly between riparian-rights states and prior-appropriation states. In tidal and navigable waters, the public trust doctrine — which varies in scope across states — is the primary vehicle for public fishing rights.
Encyclopedia Cross-Reference
See Law Mind Encyclopedia: Riparian Rights; Incorporeal Hereditaments; Public Trust Doctrine.