N. K. Dulvy

Ecological lifestyle and gill slit height across sharks

This study examines the relationship between gill slit height and ecological traits in sharks, finding it correlates with activity, size, and depth.

Offspring size resolves a population growth paradox in rays and skates

The paper investigates how offspring size influences population growth rates in rays and skates, resolving a paradox where tropical species have lower growth rates than temperate ones despite warmer conditions.

Guitarfishes are plucked: undermanaged in global fisheries despite declining populations and high volume of unreported international trade

The paper documents the undermanagement and high unreported trade of Guitarfishes, showing 76% are globally threatened due to poor fisheries management and trade regulation.

Gills, growth, and activity across fishes

This study re-examines the relationship between maximum size, growth, and gill surface area in fishes using a phylogenetic Bayesian framework, finding a weak link and highlighting activity as a stronger explanatory factor.

Size-dependence of food intake and mortality interact with temperature and seasonality to drive diversity in fish life histories

The paper models how size-dependent foraging, predation risk, and environmental factors shape fish life histories and predicts growth, reproduction, and mortality patterns in tuna species.

High overexploitation risk due to management shortfall in highly traded requiem sharks

The paper assesses the overexploitation risk of requiem sharks due to poor fisheries management, finding 70% of species are globally threatened.

M-Risk: A framework for assessing global fisheries management efficacy of sharks, rays, and chimaeras

The paper introduces M-Risk, a framework to assess fisheries management efficacy for sharks, rays, and chimaeras, finding variations in management scores between regions and species.

Extinction risk, reconstructed catches, and management of chondrichthyan fishes in the Western Central Atlantic Ocean

This study assesses extinction risk and historical catches of chondrichthyan fishes in the Western Central Atlantic Ocean to inform management and conservation strategies.

Maternal investment evolves with larger body size and higher diversification rate in sharks and rays

This study investigates the evolution of reproductive strategies in sharks and rays, finding that live-bearing and maternal investment correlate with increased diversification rates and habitat colonization.

Post-2020 Kunming 30% target can easily protect all endemic sharks and rays in the Western Indian Ocean and more

The paper identifies spatial priorities for protecting all endemic sharks and rays in the Western Indian Ocean, showing that 11% of EEZs can protect their entire ranges, well within the 30% by 2030 target.

Body mass, temperature, and depth shape the maximum intrinsic rate of population increase in sharks and rays

This study identifies temperature and depth as separate factors influencing the maximum intrinsic rate of population increase (rmax) in sharks and rays, with deeper species having lower rmax.

Fishing for survival: importance of shark fisheries for the livelihoods of coastal communities in Western Ghana

This study examines the role of shark fisheries in the livelihoods of coastal communities in Ghana, finding that shark meat and fins are vital for income and protein, with significant reliance on these fisheries for survival.

Local ecological knowledge, catch characteristics and evidence of elasmobranch depletions in Western Ghana

The paper uses local fishers' knowledge to assess shark and ray population declines in Western Ghana from 1980 to 2020, finding significant depletions linked to overfishing and IUU activities.

The metabolic pace of life histories across fishes

This study investigates the relationship between metabolic rate and life history traits in fishes, finding that growth performance, not maximum body mass or generation length, explains variation in resting metabolic rate.

The thin edge of the wedge: extremely high extinction risk in wedgefishes and giant guitarfishes

This study assesses the extinction risk of wedgefishes and giant guitarfishes using IUCN criteria, finding most species face extremely high risk due to overfishing and habitat overlap with coastal fisheries.

Predicting the conservation status of Europe’s Data Deficient sharks and rays

The paper predicts the conservation status of Data Deficient sharks and rays in the Northeast Atlantic and Mediterranean Sea using biological and ecological traits.