The United Arab Emirates (UAE) has a long history and tradition in fishing, yet its role in regional tuna management remains yet to be fully defined. This is the case specifically of tuna species, such as yellowfin, which are highly migratory and require coordinated efforts in the context of a corresponding international governance framework, particularly in ecologically important areas like the Northern Indian Ocean and the Sea of Oman. Data collection and species identification present significant complexities for these species, yet accuracy is crucial for effective conservation and fair allocation of management shares. Although UAE fisheries are partly within the area of competence of the Indian Ocean Tuna Commission (IOTC), the country has only recently begun to give consideration to the process toward participating in this Regional Fisheries Management Organisation (RFMO) which, in turn, would provide for the relevant governance framework for the species examined in this paper. This paper explores the factors behind these developments and assesses their implications for regional tuna management. Based on scientific sampling, we developed estimates of past landing volumes and propose mechanisms for ensuring data collection instrumental to an informed participation by the UAE in the regional tuna management framework under the IOTC. Finally, we explored the implications that this development would have under public international law, departing from the traditional principle “ex facto oritur ius” (Latin: the law arises from facts), which embodies the notion that certain legal consequences attach to particular developments. With regard to the specific developments being addressed by this paper, there could be certain legal consequences for UAE; following the reconstruction of landings and the enhancement of international datasets, we postulate that there would be legal ground for UAE to exercise historical fishing rights and seek a potential allocation of quotas within the framework of IOTC.

Fisheries management in Abu Dhabi has undergone significant transformation over the past two decades, shifting from an open-access system to a more regulated framework aimed at stock recovery and sustainability. This study evaluates the status of 13 commercially important fish species – accounting for 95% of total landings - using two complementary stock assessment methods: CMSY++, a Bayesian catch-based model, and the Length-Converted Catch Curve (LCCC), a length-based mortality estimation approach. Fisheries-dependent and independent data collected from 2001 to 2024 were analysed to assess trends in biomass, exploitation rates, and spawning stock biomass per recruit (SBR). CMSY++ outputs indicate that in 2005, only one out of 13 stocks were sustainable, with biomass (B) above BMSY and fishing mortality (F) below FMSY and five stocks were overexploited. By 2024, seven stocks had recovered to sustainable levels, with biomass at or above BMSY and exploitation rates below FMSY. LCCC results for 2024, further confirm these findings, with most species exhibiting SBR values above the 30% threshold, except for Lethrinus nebulosus, which remains close to overexploitation limits. The observed stock recovery coincides with effective governance and key fisheries management measures, including effort reduction, gear restrictions, and spatial protections. While most stocks are now within sustainable biological reference points, transboundary species such as Scomberomorus commerson require continued regional cooperation for effective management. These findings contribute to ongoing efforts to achieve and sustain fully sustainable fisheries in the Arabian Gulf, while aligning with international conservation frameworks, biodiversity protection goals and climate-resilient fisheries management strategies.

Fisheries management in Abu Dhabi has undergone a significant transformation over the past two decades, shifting from an open-access system to a more regulated framework aimed at stock recovery and sustainability. This study evaluates the status of 13 commercially important fish species—accounting for 95% of total landings—using two complementary stock assessment methods: CMSY++, a Bayesian catch-based model, and the Length-Converted Catch Curve (LCCC), a length-based mortality estimation approach. Fisheries-dependent and fisheries-independent data collected from 2001 to 2024 were analyzed to assess trends in biomass, exploitation rates, and spawning stock biomass per recruit (SBR). CMSY++ outputs indicate that in 2005, only 1 out of 13 stocks was sustainable, with biomass (B) above the biomass that can reproduce maximum sustainable yield (BMSY) and fishing mortality (F) below the fishing mortality that gives the maximum sustainable yield (FMSY), and 5 stocks were overexploited. By 2024, seven stocks had recovered to sustainable levels, with biomass at or above BMSY and exploitation rates below FMSY. LCCC results for 2024 further confirm these findings, with most species exhibiting SBR values above the 30% threshold, except for Lethrinus nebulosus (Forsskål, 1775), which remains close to overexploitation limits. The observed stock recovery coincides with effective governance and key fisheries management measures, including effort reduction, gear restrictions, and spatial protections. While most stocks are now within sustainable biological reference points, transboundary species such as Scomberomorus commerson (Lacépède, 1800) require continued regional cooperation for effective management. These findings contribute to ongoing efforts to achieve and maintain fully sustainable fisheries in the Arabian Gulf while aligning with international conservation frameworks, biodiversity protection goals, and climate-resilient fisheries management strategies.