Illegal Fishing and Marine Crime - Criminal Justice

Illegal fishing and marine crime encompass fishing activity conducted in violation of national and international regulations governing catch limits, licensing, gear restrictions, and protected marine areas, commonly grouped under the designation illegal, unreported, and unregulated fishing to capture the range of conduct falling outside lawful and monitored fishing activity. These offenses present distinctive enforcement challenges because they occur predominantly on the high seas, far from direct observation, and frequently involve vessels flagged in jurisdictions with limited capacity or political will to enforce international fisheries agreements against their own registered fleet. Green criminology treats illegal fishing as an important case for examining how weak governance over shared and open-access marine resources generates persistent criminogenic pressure toward overexploitation. The discussion that follows examines the regulatory framework governing marine fisheries, patterns of illegal, unreported, and unregulated fishing, enforcement challenges specific to the high seas, and the theoretical accounts explaining this offending’s persistence.

Introduction

Marine fisheries regulation in the United States operates primarily through the Magnuson-Stevens Fishery Conservation and Management Act, which establishes catch limits and management plans for federal waters administered through regional fishery management councils, supplemented by international agreements governing fishing activity in waters beyond any single nation’s exclusive economic zone. This domestic framework connects to a broader international governance structure in which regional fisheries management organizations attempt to coordinate catch limits and enforcement standards among member nations with fishing interests in shared ocean regions, though compliance and enforcement capacity vary considerably across these organizations.

Gohar Petrossian’s situational analysis of illegal, unreported, and unregulated fishing has argued that the offense’s distinctive enforcement challenge stems from the vastness of the ocean environment relative to available monitoring and enforcement resources, creating opportunity structures for illegal fishing that differ substantially from land-based environmental offending where facilities and their emissions remain in a fixed, inspectable location (Petrossian, 2015). This situational framing has informed much of the subsequent policy and enforcement literature addressing illegal fishing specifically.

Regulatory Framework Governing Marine Fisheries

Exclusive economic zones, extending 200 nautical miles from a coastal nation’s shoreline under international maritime law, grant that nation primary authority over fishing activity within the zone, while waters beyond this boundary fall under a more limited international governance regime dependent on flag state enforcement and regional fisheries management organization coordination. This jurisdictional structure means that illegal fishing occurring within a nation’s exclusive economic zone can be addressed through that nation’s domestic enforcement apparatus, while illegal fishing on the high seas depends much more heavily on international cooperation and the willingness of vessel flag states to enforce applicable regulations against their own registered fleet.

Flag of convenience registration, in which a vessel owner registers a fishing vessel in a country other than their own, often selecting jurisdictions with minimal registration requirements and limited enforcement capacity, has been identified as a significant facilitating factor for illegal fishing operations seeking to minimize regulatory oversight. Ronald Burns, Michael Lynch, and Paul Stretesky’s treatment of environmental law and criminal justice notes that this registration practice creates an accountability gap comparable to the jurisdictional arbitrage documented in other transnational environmental crime categories, since a vessel’s nominal flag state may possess neither the capacity nor the incentive to investigate reported violations (Burns, Lynch, & Stretesky, 2008).

Port state measures, requiring vessels to submit to inspection before landing catch at a participating port, have emerged as an increasingly important complementary enforcement mechanism operating independently of flag state cooperation, since a vessel engaged in illegal fishing must eventually land its catch somewhere to realize commercial value from the voyage. This port-based enforcement approach shifts enforcement leverage toward the destination market rather than depending exclusively on monitoring activity at the point of capture, a strategy that has gained increasing international adoption as flag state enforcement has proven insufficient on its own.

Regional fisheries management organizations, established through international agreements among nations sharing fishing interests in particular ocean regions, attempt to coordinate catch limits, vessel monitoring requirements, and enforcement standards among member nations, though the effectiveness of this coordination varies considerably depending on member state compliance and the organization’s own enforcement authority relative to nonmember vessels operating in the same waters.

Patterns of Illegal, Unreported, and Unregulated Fishing

Empirical estimates of illegal, unreported, and unregulated fishing’s global scale, while subject to considerable methodological uncertainty given the difficulty of measuring activity specifically designed to evade detection, consistently indicate that the practice accounts for a substantial share of total global fishing activity, with particularly pronounced concentration in regions where coastal state enforcement capacity is comparatively weak. Research led by David Agnew examining the worldwide extent of illegal fishing found that developing coastal nations, often lacking the naval and administrative resources to monitor their exclusive economic zones effectively, experience disproportionately high rates of illegal fishing by foreign vessels exploiting this enforcement gap (Agnew et al., 2009).

Unreported fishing, distinct from outright illegal fishing in that it may occur within otherwise lawful fishing operations but involves catch that goes unreported to relevant management authorities, complicates fisheries management by undermining the accuracy of population and catch data used to set sustainable harvest limits for regulated species. This data integrity problem means that unreported fishing’s harm extends beyond the immediate overharvest involved, since inaccurate catch reporting can lead management authorities to set future catch limits based on an incomplete picture of actual fishing pressure on a given stock.

Species targeted by illegal fishing operations frequently include those subject to the most restrictive catch limits or complete protection, since the same scarcity driving conservation restrictions also generates the price premiums that make illegal harvest commercially attractive despite the associated legal risk. This pattern parallels the demand-driven dynamics documented in wildlife trafficking more broadly, where trade restriction and resulting scarcity can inadvertently increase rather than eliminate the financial incentive toward illegal exploitation absent sufficiently strong enforcement.

Enforcement Challenges on the High Seas

Detection of illegal fishing activity on the high seas depends heavily on satellite-based vessel monitoring systems, aerial surveillance, and increasingly on vessel tracking data intended for safety and navigation purposes but repurposed for enforcement monitoring, since direct physical inspection of vessels operating far from shore remains logistically difficult and expensive to conduct at scale. Gohar Petrossian’s research on situational prevention approaches to illegal fishing has argued that these technological monitoring tools, while valuable, cannot fully substitute for enforcement capacity capable of physically intercepting and inspecting vessels identified as engaging in suspicious activity (Petrossian, 2015).

Jurisdictional complexity compounds these detection challenges, since prosecuting illegal fishing detected on the high seas may require cooperation among the flag state, the coastal state whose waters were fished, the state where the catch is eventually landed, and potentially the states of nationality for the vessel’s crew, any of which may have differing levels of interest and capacity in pursuing enforcement action. This multi-jurisdictional coordination requirement parallels but often exceeds the complexity documented in other transnational environmental crime enforcement, given the additional layer of maritime jurisdictional law governing activity beyond any single nation’s territorial waters.

Resource constraints facing enforcement agencies, particularly in developing coastal nations most affected by illegal fishing, mean that even well-documented violations frequently go unprosecuted due to limited naval and administrative capacity to pursue enforcement action against vessels operating far from shore. International capacity-building efforts, including provision of monitoring technology and enforcement training to affected nations, have emerged as a significant policy response to this resource constraint, though the scale of the problem continues to substantially exceed available enforcement capacity in most heavily affected regions.

Theoretical Explanations for Illegal Fishing

Rational choice and situational crime prevention frameworks, most closely associated with Gohar Petrossian’s research on illegal fishing, explain the offense through the opportunity structures created by vast, poorly monitored ocean areas combined with the substantial commercial value of unrestricted catch, arguing that reducing illegal fishing requires systematically closing these opportunity structures through improved monitoring, port state measures, and market-based interventions rather than relying primarily on deterrence-based enforcement alone (Petrossian, 2015).

Tragedy of the commons frameworks, adapted from resource economics, situate illegal fishing within a broader structural account of how open-access or weakly governed shared resources generate systematic overexploitation pressure, since individual fishing operations bear the full benefit of additional catch while the cost of resource depletion is distributed across all users of the shared fishery. This framework helps explain why illegal fishing persists even among operators who may recognize the long-term unsustainability of current harvest patterns, since unilateral restraint by any single operator provides no assurance that other operators will similarly restrain their own harvest activity.

Treadmill of production theory, associated with Paul Stretesky, Michael Long, and Michael Lynch, extends to illegal fishing through its account of how continuous economic growth pressure drives increasingly intensive resource extraction even as accessible and sustainable catch levels are exceeded, a dynamic that in the marine context manifests as fishing fleets moving into increasingly distant waters and targeting increasingly depleted stocks as more accessible fisheries decline (Stretesky, Long, & Lynch, 2013).

Conclusion

Illegal fishing and marine crime together illustrate how weak governance over shared and open-access resources can generate persistent criminogenic pressure that conventional land-based enforcement models struggle to address given the ocean environment’s vast scale and the jurisdictional complexity of maritime law. The regulatory framework governing marine fisheries, spanning domestic statutes such as the Magnuson-Stevens Act and international coordination through regional fisheries management organizations, reflects substantial institutional development that nonetheless continues to face significant enforcement capacity gaps, particularly in developing coastal nations bearing the heaviest burden of illegal fishing by foreign vessels.

Theoretical accounts ranging from situational crime prevention to tragedy of the commons and treadmill of production theory offer complementary explanations for why illegal fishing persists despite decades of regulatory development, each pointing toward different intervention strategies ranging from technological monitoring investment to structural reform of the economic pressures driving continuous fishing effort expansion. Continued international cooperation and capacity-building investment remain essential to closing the substantial enforcement gaps this discussion has identified.

References and Further Reading

Agnew, D. J., Pearce, J., Pramod, G., Peatman, T., Watson, R., Beddington, J. R., & Pitcher, T. J. (2009). Estimating the worldwide extent of illegal fishing. PLoS ONE, 4(2), e4570.
Beirne, P., & South, N. (Eds.). (2007). Issues in green criminology: Confronting harms against environments, humanity and other animals. Willan Publishing.
Brisman, A., & South, N. (2014). Green cultural criminology: Constructions of environmental harm, consumerism, and resistance to ecocide. Routledge.
Burns, R. G., Lynch, M. J., & Stretesky, P. B. (2008). Environmental law, crime, and justice. LFB Scholarly Publishing.
Clifford, M., & Edwards, T. D. (2012). Environmental crime (2nd ed.). Jones & Bartlett Learning.
Faure, M. G. (2017). The revolution in environmental criminal law in Europe. Virginia Environmental Law Journal, 35(3), 321–356.
Hedman, S. (1991). Expressive functions of criminal sanctions in environmental law. George Washington Law Review, 59(4), 889–899.
Lemieux, A. M., & Clarke, R. V. (2009). The international ban on ivory sales and its effects on elephant poaching in Africa. British Journal of Criminology, 49(4), 451–471.
Lynch, M. J., Long, M. A., Stretesky, P. B., & Barrett, K. L. (2017). Green criminology: Crime, justice, and the environment. University of California Press.
Petrossian, G. A. (2015). Preventing illegal, unreported and unregulated (IUU) fishing: A situational approach. Biological Conservation, 189, 39–48.
Rebovich, D. J. (1992). Dangerous ground: The world of hazardous waste crime. Transaction Publishers.
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Situ, Y., & Emmons, D. (2000). Environmental crime: The criminal justice system’s role in protecting the environment. Sage Publications.
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South, N., & Wyatt, T. (2011). Comparing illicit trades in wildlife and drugs: An exploratory study. Deviant Behavior, 32(6), 538–561.
Stretesky, P. B., Long, M. A., & Lynch, M. J. (2013). The treadmill of crime: Political economy and green criminology. Routledge.
Uhlmann, D. M. (2009). Prosecuting crimes against the earth. Trends in Organized Crime, 12(2), 130–140.
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