A5006281747- Fish Ecology and Management Studies
- Marine and fisheries research
- Fish Biology and Ecology Studies
- Environmental DNA in Biodiversity Studies
- Aquatic Invertebrate Ecology and Behavior
- Wildlife Ecology and Conservation
- Marine animal studies overview
- Hydrology and Sediment Transport Processes
- Isotope Analysis in Ecology
- Hydrology and Watershed Management Studies
- Sustainability and Climate Change Governance
- Fish biology, ecology, and behavior
- Marine Bivalve and Aquaculture Studies
- Environmental Education and Sustainability
- Freshwater macroinvertebrate diversity and ecology
- Arctic and Antarctic ice dynamics
- Forest Management and Policy
- Avian ecology and behavior
- Economic and Environmental Valuation
- Interdisciplinary Research and Collaboration
- Crustacean biology and ecology
- Species Distribution and Climate Change
- scientometrics and bibliometrics research
- Marine and coastal plant biology
- Coral and Marine Ecosystems Studies
United States Geological Survey
2016-2025
Kansas State University
2016-2025
Ecological Society of America
2017
University of Massachusetts Amherst
2002-2016
National Oceanic and Atmospheric Administration
2012
The Ohio State University
1986-1990
Longitudinal connectivity is a fundamental characteristic of rivers that can be disrupted by natural and anthropogenic processes. Dams are significant disruptions to streams. Over 2,000,000 low-head dams (<7.6 m high) fragment United States rivers. Despite potential adverse impacts these ubiquitous disturbances, the spatial on geomorphology ecology largely untested. Progress for research conservation impaired not knowing magnitude dam impacts. Based geomorphic literature, we refined...
Disruption to migration is a growing problem for conservation and restoration of animal populations. Anthropogenic barriers along paths can delay or prolong migrations, which may result in mismatch with migration-timing adaptations. To understand the interaction dams (as path), seasonally changing environmental conditions, timing Atlantic salmon (Salmo salar) downstream migration, ultimate success, we used 10 years river temperature discharge data as template upon simulated movement salmon....
Integrating the analysis of natural and social systems to achieve sustainability has been an international scientific goal for years (1, 2). However, full integration proven challenging, especially in regard role culture (3), which is often missing from complex equation. To enact policies practices that can sustainability, researchers policymakers must do a better job accounting culture, difficult though this task may be.
In Ohio streams, the crayfish Orconectes rusticus is replacing O. sanborni, and herein we test how predators influence this replacement. a field survey, were scarce when fish abundant, suggesting that can adversely affect these prey. laboratory experiments, examined underlying mechanisms for inverse relationship; specifically, tested species, adult aggression, habitat heterogeneity influenced predator–prey interaction. stream, smallmouth bass (Micropterus dolomieu) ate similar numbers of...
Summary Understanding the relationship between heterogeneity and biodiversity is an active focus of ecological research. Although habitat conceptually linked to biodiversity, amount configuration that maintains within ecosystems not well understood, especially for entire stream network. Here, we tested alternative outcomes about how alterations caused by beaver dams affected native fish biodiversity. Specifically, quantified in‐stream assemblages above below all ( n = 15) selected control...
Abstract Most anadromous fish populations remain at low levels or are in decline despite substantial investments restoration. We explore whether a resilience perspective (i.e., different paradigm for understanding populations, communities, and ecosystems) is viable alternative framework Many life history traits have allowed to thrive unimpacted ecosystems but become contemporary curses as anthropogenic effects increase. This contradiction creates significant conservation challenge also makes...
Animals can be important in modulating ecosystem-level nutrient cycling, although their importance varies greatly among species and ecosystems. Nutrient cycling rates of individual animals represent valuable data for testing the predictions frameworks such as Metabolic Theory Ecology (MTE) ecological stoichiometry (ES). They also an set functional traits that may reflect both environmental phylogenetic influences. Over past two decades, studies animal-mediated have increased dramatically,...
Abstract Conserving native biodiversity in the face of human‐ and climate‐related impacts is a challenging globally important ecological problem that requires an understanding spatially connected, organismal‐habitat relationships. Globally, suite disturbances (e.g., agriculture, urbanization, climate change) degrades habitats threatens biodiversity. A mosaic approach (in which interacting collections juxtaposed habitat patches are examined) provides scientific foundation for addressing many...
Developing and testing alternate hypotheses about patterns, mechanisms, consequences of movement in geographically-large, heterogeneous, natural systems can advance the scientific understanding animal migration benefit conservation most mobile species. Within organismal trajectories, different combinations residence are predicted from existing ecological theories (e.g. long distance migration, site fidelity, central place foraging, ideal free distribution, habitat shifts). However, these...
The overarching issue we address here is how to extract clear and actionable ecological management insights from real-world field data that often do not satisfy traditional statistical assumptions. Toward this goal, developed a general 12+6 step adaptive framework tool. We applied tool existing biodiversity monitoring create proof-of-concept result addresses the question of “ why might specific native stream fish taxon be present or absent at locations? ” Our multi-step links established...
Abstract The recent increase in the Atlantic coast population of striped bass, Morone saxatilis (Walbaum), prompted managers to re‐evaluate their predatory impact. Published and unpublished diet data for bass on Coast North America were examined geographical, ontogenetic seasonal patterns assess this species. Diets young‐of‐the‐year (YOY) similar across Upper (UPATL), Chesapeake Delaware Bays (CBDEL) Carolina (NCARO) areas where either fish or mysid shrimp dominate diet. For age one older...
Predation is frequently studied in aquatic systems that contain salmon. Because these are difficult to manipulate and replicate, rigorous across-system comparisons essential. Herein I review the literature on factors may influence predation across systems. Specifically, evaluated how often salmonids was important prey taxa, life stage, habitat, predator methodology, spatial scale. Further, examined what were influential where important. In nine journals from 1959-1996, 45 field studies...
We combined laboratory and field studies to experimentally assess how the effects of feeding regime time since influence nitrogen (N), phosphorus (P), N:P ratio excreted by two common freshwater fish, bluegill (Lepomis macrochirus) gizzard shad (Dorosoma cepedianum). In addition, for adult shad, we modelled excretion rates as a function nutrient content ingested sediment detritus. For both significantly increased altered ratios. species, were highest immediately after declined thereafter....
Abstract Using acoustic telemetry on migratory striped bass Morone saxatilis in Plum Island Estuary (PIE), Massachusetts, we found that (335–634 mm total length) tagged the spring and summer of 2005 ( n = 14) 2006 46) stayed estuary for an average 66.0 d 72.2 2006. Striped spent most time two specific reaches: middle Sound lower Rowley River. In both years, three different use‐groups were observed PIE. Short‐term visitors 24) only briefly (range 5–20 d). Two groups seasonal residents more...
We determined how ice affects selection of habitats and distribution post-young-of-the-year Atlantic salmon (Salmo salar) parr during winter. Night snorkeling surveys were completed between November April to evaluate habitat use movements. Systematic measurements water depth velocity recorded ice-free [Formula: see text]55% iced conditions quantify availability. Ice formation altered the reduced abundance commonly used by parr; differences availability greatest when was present. Edge...
Abstract Anadromous river herring (alewives Alosa pseudoharengus and blueback A. aestivalis ), which constitute a historically ecologically important component of coastal rivers, have declined precipitously throughout the Atlantic seaboard. Suggested causes decline include commercial fishing predation by striped bass Morone saxatilis . Although this recent trend are poorly understood, especially vulnerable to adverse impacts during their spring spawning migration. Radiotelemetry is an useful...
Abstract Natural resource professionals have frequently criticized universities for poorly preparing graduates to succeed in their jobs. We surveyed members of the American Fisheries Society determine which job skills and knowledge academic topics employers, students, university faculty deemed most important early-career success fisheries professionals. Respondents also rated proficiency recently hired, entry-level (employers) on how well programs prepared them career (students faculty)...
Sustainability has been at the forefront of environmental research agenda integrated anthroposphere, hydrosphere, and biosphere since last century will continue to be critically important for future science. However, linking humans environment through effective policy remains a major challenge sustainability practice. Here we address this gap using an agent-based model (ABM) coupled natural human systems in Smoky Hill River Watershed (SHRW), Kansas, USA. For freshwater-dependent agricultural...
Juvenile anadromous river herring (alewife Alosa pseudoharengus and blueback A. aestivalis) spend the first 3 to 7 months of life in headwater lakes coastal systems. Systems that support often produce trophy largemouth bass Micropterus salmoides. Even though biologists, managers, anglers have speculated about value as a key prey for resident predators, contribution make diets these predators has not been assessed. Herein, we quantified two lakes, Santuit Coonamessett ponds, contained...
Land use planners have the challenge of incorporating biologically sound guidelines into development plans to balance human with conservation natural resources. Valued as an important component heritage northeastern United States, anadromous river herring (Alosa pseudoharengus, A. aestivalis) represent a model system look at how ecological data can help conserve biological diversity in systems impacted by humans. Juvenile spend 3–7 months freshwater then migrate ocean. However, factors that...