A5014715862- Fish Ecology and Management Studies
- Marine and fisheries research
- Marine animal studies overview
- Coral and Marine Ecosystems Studies
- Marine Bivalve and Aquaculture Studies
- Conservation, Ecology, Wildlife Education
- Wildlife Ecology and Conservation
- Avian ecology and behavior
- Hydrology and Sediment Transport Processes
- Marine and coastal ecosystems
- Fish biology, ecology, and behavior
University of Washington
2018-2023
University of California, Santa Cruz
2018
Abstract Wild capture fisheries produce 90 million tonnes of food each year and have the potential to provide sustainable livelihoods for nearly 40 people around world ( http://www.fao.org/3/a-i5555e.pdf ). After decades overfishing since industrialization, many global fish stocks recovered, a change brought about through effective management. We synthetic overview three approaches that managers use sustain stocks: regulating catch fishing mortality, effort spatial access. Within these...
Migration timing has evolved in many animals, allowing them to maximize breeding and feeding success by matching seasonal changes abiotic conditions resource pulses. These can shift with the climate, resulting mismatches between migrations availability unless populations respond through phenotypic plasticity or evolutionary adaptation. It is common, however, for factors unrelated climate affect phenology. Salmon are an exceptionally well-studied group of fishes whose serve as a template...
Abstract Association with physical structure or conspecifics can impact individual growth and survival. The necessity strength of these associations changes environmental conditions ontogeny, acting in concert opposition to influence an individual's behavior ultimate success. We conducted a field experiment on the San Joaquin River, California, juvenile Chinook salmon ( Oncorhynchus tshawytscha ) test hypotheses related impacts proximity ontogenetic change aggregating migratory fish. created...
Ecological models are used to understand where fishing vessels operate, improving fisheries management success. The ideal free distribution (IFD) predicts equalization of catch across locations in response distributions fish and competing vessels. We applied the IFD as a null model investigate movement per vessel (CPUE) sockeye salmon drift gillnet fleet Bristol Bay, AK, from 1980 2019. prediction equal CPUE areas was not supported, so we explored violations two assumptions theory....
This paper presents a novel approach for assessing sources selectivity in test fisheries using the Port Moller fishery (PMTF) as case study. The PMTF intercepts sockeye salmon (Oncorhynchus nerka) migrating to Bristol Bay, Alaska, estimate run strength and timing. In 2011, mesh size of gillnets used was decreased half net panels generate more accurate estimates by correcting greater larger 3-ocean fish (fish that have spent 3 years ocean) relative smaller 2-ocean 2 ocean). Here, we quantify...
Long-term datasets can reveal otherwise undetectable ecological trends, illuminating the historical context of contemporary ecosystem states. We used two decades (1997–2019) scientific trawling data from a subtidal, benthic site in Puget Sound, Washington, USA to test for gradual trends and sudden shifts total sea star abundance across 11 species. specifically assessed whether this community responded wasting disease (SSWD) epizootic, which began 2013. sampled at depths 10, 25, 50 70 m near...
Many foraging models assume “perfect information” and “free movement” when describing predator behavior, although this is rare in nature. Here, we quantified predation by brown bears ( Ursus arctos Linnaeus, 1758) on adult sockeye salmon Oncorhynchus nerka (Walbaum, 1792)) a series of spatially proximate ponds that largely satisfied both assumptions. Salmon abundance varied among years, but pond area depth were fixed, allowing us to examine interactions between prey habitat features. We...