A5049449926- Fish Ecology and Management Studies
- Marine and fisheries research
- Isotope Analysis in Ecology
- Fish Biology and Ecology Studies
- Ichthyology and Marine Biology
- Fish biology, ecology, and behavior
- Time Series Analysis and Forecasting
- Marine Bivalve and Aquaculture Studies
- Marine animal studies overview
- Environmental DNA in Biodiversity Studies
- Wildlife Ecology and Conservation
- Underwater Acoustics Research
- Coastal and Marine Management
- Animal Vocal Communication and Behavior
- Cryospheric studies and observations
- Geology and Paleoclimatology Research
- Identification and Quantification in Food
- Digital Imaging for Blood Diseases
Gonzaga University
2024-2025
University of Idaho
2013-2022
ABSTRACT Human activities have significantly altered coastal ecosystems worldwide. The phenomenon of shifting baselines syndrome (SBS) complicates our understanding these changes, masking the true scale human impacts. This study investigates long‐term ecological effects anthropogenic on New Zealand's over 800 years using fish otolith microchemical profiling and dynamic time warping across an entire stock unit. Results reveal a shift in snapper ( Chrysophrys auratus ; Sparidae) habitat‐use...
Animal migrations provide important ecological functions and can allow for increased biodiversity through habitat niche diversification. However, aquatic in general, those of the world's largest fish particular, are imperiled worldwide often poorly understood. Several species large Amazonian catfish carry out some longest freshwater world, travelling from Amazon River estuary to Andes foothills. These apex predators main stem rivers Basin make up region's fishery. They also only utilize...
Connecting maternal migratory behavior with the and ecology of their progeny can reveal important details in a population. One method for linking migration to early juvenile life history is through chemistry recorded otoliths. Despite wide use signatures infer anadromy, duration dynamics otolith are not well understood. Shifts elemental ratios strontium isotope ( 87 Sr/ 86 Sr) otoliths from Chinook salmon (Oncorhynchus tshawytscha) correlate timing hatch emergence, respectively, indicating...
Abstract Ecological patterns are often fundamentally chronological. However, generalization of data is necessarily accompanied by a loss detail or resolution. Temporal in particular contain information not only values but the temporal structure, which lost when these aggregated to provide point estimates. Dynamic time warping (DTW) series comparison method that capable efficiently comparing despite offsets confound other methods. The DTW both efficient and remarkably flexible, matching also...
The migration of Pacific salmon is an important part functioning freshwater ecosystems, but as populations have decreased and ecological conditions changed, so patterns. Understanding how the environment, human impacts, change behavior requires observing at small temporal spatial scales across large geographic areas. Studying these detailed fish movements particularly for one threatened population Chinook in Snake River Idaho whose juvenile may be rapidly evolving response to dams...
Abstract Animal migrations provide important ecological functions and can allow for increased biodiversity through habitat niche diversification. However, aquatic in general, those of the world’s largest fish particular, are imperiled worldwide often poorly understood. Several species large Amazonian catfish carry out some longest freshwater world, travelling from Amazon River estuary to Andes foothills. These apex predators main stem rivers Basin make up regions fishery. They also only...
Abstract An animal's performance during its early life stage can greatly influence survival to adulthood. Therefore, understanding aspects of history be informative, particularly when designing management plans rebuild a population. For threatened population fall Chinook salmon ( Oncorhynchus tshawytscha ) in the Snake River Idaho, we reconstructed for 124 returning wild and hatchery adults using information recorded their otoliths. Of our sampled n = 61), 43% 49% reared within...
Abstract Chronological data from hard structures have been instrumental in reconstructing information about the past across numerous disciplines. Isotopic and trace elemental chronologies depositional layers of speleothems, corals, bivalve shells, fish otoliths other are routinely used to reconstruct climate, growth, temperature, geological, archeological migratory histories. Recent situ analytical advances revolutionized use these structures. This is particularly true fish, which detailed...
Abstract The ecology of endangered and rare species can be difficult to study owing their low abundances legal limits on scientist’s ability catch, sample, track them. This is particularly true sawfish (family Pristidae), whose numbers have declined precipitously, placing all five the IUCN Red List Threatened Species worldwide. Best known for distinctive, toothed rostrum, ecology, movement life‐history are poorly understood. Sawfish rostral teeth modified placoid scales, which grow...
Abstract Recent approaches to fisheries research emphasize the importance of coproduction knowledge in building resilient and culturally mindful management frameworks. Despite widespread recognition need for Indigenous historical reference points as baseline data, archaeological data are rarely included conservation biology designs. Here we propose a novel multiproxy method learn from former stewards by generating on past salmonid population parameters. We used newly developed, high...
Abstract The ecology of endangered and rare species can be difficult to study due their low abundances legal limits on scientist’s ability catch, sample, track them. This is particularly true sawfish (family Pristidae) whose numbers have declined precipitously, placing all five the IUCN Red List Threatened Species worldwide. Best known for distinctive, toothed rostrum, ecology, movement, life-history poorly understood. Sawfish rostral teeth are modified placoid scales, which grow...
Abstract Effective species management often requires understanding patterns of movement and habitat use. A common approach in identifying where individuals reside relies upon chemical tracers from the environment that are incorporated into an individual's tissues. For fish, isotopes their otoliths, specifically portion otolith formed during larval stage, have been used to identify natal origin. Complicating this work, however, is fact life there a shift source deposited onto growing...
Abstract Ecological patterns are often fundamentally chronological. However, generalization of data is necessarily accompanied by a loss detail or resolution. Temporal in particular contains information not only values but the temporal structure, which lost when these aggregated to provide point estimates. Dynamic Time Warping (DTW) time series comparison method that capable efficiently comparing despite offsets confound other methods. The DTW both efficient and remarkably flexible, matching...