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Diversity and Subjectivity of Model Uncertainty Specification in Global Tuna Stock AssessmentNARA Subscribed
As a major source of scientific uncertainty in stock assessments and fisheries management, model uncertainty in tuna stock assessments is primarily examined using sensitivity analysis and ensemble modelling. However, uncertainty specifications (i.e., factors and levels included in uncertainty analyses) for tuna assessments vary within and among tuna Regional Fisheries Management Organisations (tRFMOs). We reviewed the uncertai...
Climate change affects the somatic growth of many important fish species targeted by fisheries worldwide, yet the explicit incorporation of climate-driven temporal growth variation in assessment remains limited for most fisheries stocks. In this study, we use Eastern Atlantic skipjack ( Katsuwonus pelamis ) as a case study to explore the effects of misspecifying temporal growth variation driven by sea surface temperature on st...
A Meta‐Analysis of Bycatch Mitigation Methods for Sea Turtles Vulnerable to Swordfish and Tuna Longline FisheriesNARA Subscribed
Fisheries bycatch poses one of the most significant threats to sea turtles. Although various methodologies have been developed to mitigate sea turtle bycatch in swordfish and tuna longline fisheries, the effectiveness and interactions remain uncertain. In this study, we conducted a comprehensive meta‐analysis, encompassing 41 studies focused on sea turtles and 36 studies on tunas, swordfish and sharks, all derived from well‐co...
Fishery stock assessment requires accurate specification of the growth function of target species, and aging uncertainty is an important factor that affects the estimation of growth parameters. In this study, we used simulations to study the effects of two types of aging uncertainty, aging error and sampled age range, on the parameter estimation of the Von Bertalanffy growth function, including asymptotic length (L∞), growth c...
Effects of Climate Variability on Two Commercial Tuna Species Abundance in the Indian OceanOA Marine
Oceanic temperature fluctuations are one of the leading factors affecting marine fish populations. Indian Ocean Dipole (IOD), characterized as the sea surface temperature (SST) anomaly change, is an ocean–atmosphere interactive process causing interannual climate variability in the Indian Ocean. Influences of the IOD on the tuna catch rates are supported by previous research. Yet, there remains limited information about the im...
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