A5068617499- Fish Ecology and Management Studies
- Marine and fisheries research
- Coral and Marine Ecosystems Studies
- Isotope Analysis in Ecology
- Wildlife Ecology and Conservation
- Species Distribution and Climate Change
- Ecology and biodiversity studies
- Genetic diversity and population structure
- Marine animal studies overview
- Genetic and phenotypic traits in livestock
- Marine Bivalve and Aquaculture Studies
- Marine and coastal plant biology
- Animal Behavior and Reproduction
- Aquatic Invertebrate Ecology and Behavior
- Oceanographic and Atmospheric Processes
NOAA National Marine Fisheries Service
2024
NOAA National Marine Fisheries Service Alaska Fisheries Science Center
2022-2024
National Oceanic and Atmospheric Administration
2022-2024
University of Washington
2017-2023
Abstract Shifts in the distribution of groundfish species as oceans warm can complicate management efforts if distributions expand beyond extent existing scientific surveys, changing proportion available to any one survey each year. We developed first-ever model-based biomass estimates for three Bering Sea groundfishes (walleye pollock (Gadus chalcogrammus), Pacific cod macrocephalus), and Alaska plaice (Pleuronectes quadrituberculatus)) by combining fishery-independent bottom trawl data...
Interest is growing in developing conservation strategies to restore and maintain coral reef ecosystems the face of mounting anthropogenic stressors, particularly climate warming associated mass bleaching events. One such approach propagate colonies ex situ transplant them degraded areas augment habitat for reef-dependent fauna, prevent colonization from spatial competitors, enhance reproductive output. In addition "demographic restoration" efforts, manipulating thermal tolerance outplanted...
In the high seas, Pacific salmon (Oncorhynchus spp.) stocks exhibit considerable mixing across North Pacific, which increases potential for inter- and intra-species resource competition. Stock origin stock-specific phenotypic differences in feeding may therefore be an important factor understanding density dependence other drivers of nutritional quality. Evidence north have been shown from stable isotope analysis sockeye returns (Welch Parsons 1993; Johnson Schindler 2012), growth rates...
Record low run sizes of Chum salmon (Oncorhynchus keta) were observed in western Alaska from 2020 to 2022 following marine heat waves (extreme events) that occurred their early and winter ocean habitats. Climate warming impacts on Arctic-Yukon-Kuskokwim (AYK) ecology freshwater habitats is a shared concern among Alaskan communities. The life history AYK includes short period within habitats, where adults spawn during fall months, eggs hatch spring the year, smolts leave enter environment...
Abstract Males of many fish species exhibit alternative reproductive tactics, which can influence the maturation schedules, fishery productivity, and resilience to harvest exploited populations. While mating phenotypes persist in stable equilibria through frequency‐dependent selection, shifts tactic frequencies have been observed substantial consequences for fisheries. Here, we examine dynamics precocious sneaker males called “jacks” a population sockeye salmon ( Oncorhynchus nerka ) from...
Abstract Many mobile marine taxa are changing their distributions in response to climate change. Such movements pose a challenge fisheries monitoring and management, particularly systems where climate‐adaptive ecosystem‐based management objectives emphasized. While shifts species can be discerned from long‐term fisheries‐independent data, distilling coherent patterns across space time such datasets challenging, for transboundary stocks. One approach identifying dominant of spatiotemporal...
Abstract Ocean warming interacts with local stressors to negatively affect coral reefs. The adaptive capacity of reefs survive these is driven by ecological and evolutionary processes occurring at multiple spatial scales. Marine protected area (MPA) networks are one solution that can address both regional threats, yet the impacts MPA network design on remains unclear. In this paper, we used an eco-evolutionary model simulate hypothetical configurations in Caribbean, Southwest Pacific Coral...
Abstract Data from fishery-independent surveys are critical inputs to stock assessments, ecosystem-based fishery management, and applied ecological research. However, environmental change may affect species distributions their availability surveys, with consequences for the consistency precision of abundance estimates over time. We investigated whether defining survey stratum boundaries by conditions improves accuracy in a multispecies survey. fitted univariate spatiotemporal distribution...
In many species, males may exhibit alternative life histories to circumvent the costs of intrasexual competition and female courtship. While evolution underlying genetic physiological mechanisms behind reproductive tactics are well studied, there has been less consideration ecological factors that regulate their prevalence. Here, we examine six decades age composition records from thirty-six populations sockeye salmon (Oncorhynchus nerka) quantify associations between spawning habitat...
Fishery managers often rely on forecasts of future population abundance to set allowable harvest quotas or exploitation rates. While there has been substantial research devoted identifying environmental factors that can predict recruitment for individual populations, such correlations degrade over time, thereby limiting their utility management. Conversely, examining multiple populations at once detect shared, spatially structured patterns offer insights into dynamics are advantageous...
Fisheries-independent surveys provide critical data products used to estimate stock status and inform management decisions. While it can be possible redistribute sampling effort improve survey efficiency address changing monitoring needs in the face of unforeseen challenges, is important assess consequences such changes. Here, we present an approach that relies on existing simulations evaluate impacts strategic reductions effort. We apply this potential effects reducing high density near St....
With advances in molecular genetics, it is becoming increasingly feasible to conduct genetic stock identification (GSI) inform management actions that occur within a fishing season. While applications of in-season GSI are widespread, such programs seldom integrate data from previous years, underutilizing the full breadth information available for real-time inference. In this study, we developed Bayesian hierarchical model integrates historical and estimate temporal changes composition mixed...
Abstract Alternative reproductive tactics, where members of a population exhibit divergent mating approaches, are widespread in fishes. The maintenance such polymorphisms is often explained using game‐theoretic concepts as frequency‐dependent selection, which typically assume populations at equilibrium. However, fish stochastic variability that inconsistent with the assumption equilibrium dynamics. We explored how dynamics interact sexual and harvest‐induced selection to shape frequencies...