A5057373201- Marine and fisheries research
- Fish Ecology and Management Studies
- Coral and Marine Ecosystems Studies
- Coastal and Marine Management
- Turtle Biology and Conservation
- Marine Bivalve and Aquaculture Studies
- Marine animal studies overview
- Ichthyology and Marine Biology
- International Maritime Law Issues
- Amphibian and Reptile Biology
- Aquatic Invertebrate Ecology and Behavior
- Wildlife Ecology and Conservation
- Fish Biology and Ecology Studies
- Avian ecology and behavior
- Animal Behavior and Reproduction
- Aquatic Ecosystems and Phytoplankton Dynamics
- Species Distribution and Climate Change
- Marine and coastal plant biology
- Marine and coastal ecosystems
- Ocean Acidification Effects and Responses
- Marine Biology and Ecology Research
- Freshwater macroinvertebrate diversity and ecology
- Fish biology, ecology, and behavior
- Oceanographic and Atmospheric Processes
- Ecology and Vegetation Dynamics Studies
Stanford University
2016-2025
Palo Alto Institute
2018-2025
Pacific University
2015-2024
Marine Conservation Institute
2007-2020
Ocean Medical Center
2012-2017
Ocean Institute
2013-2017
Palo Alto University
2016
University of Colorado Boulder
2015
Wilburforce Foundation
2015
Duke University
2004-2013
Structural complexity of the habitat often reduces predatory efficiency by reducing prey capture rates. Prey density is positively correlated with structure because it pro- vides food and substrate to as well a relative refuge from predators. Dense inhibits foraging, allowing abundant, highly profitable coexist Sparse allows efficient foraging generally contains few prey. This suggests that feeding rates predators may be maximized at intermediate structure. If this true, we might also expect...
Understanding the mechanisms controlling recruitment in fishes is a major problem fisheries science. Although literature on large and growing rapidly, it primarily species specific. There no conceptual framework to integrate existing information larval fish ecology its relationship survival recruitment. In this paper, we propose an integrating based body size. all are small relative adult fish, total length at hatching differs among by order of magnitude. As many factors critical growth size...
Management of many species is currently based on an inadequate understanding their population dynamics. Lack age—specific demographic information, particularly for long—lived iteroparous species, has impeded development useful models. We use Lefkovitch stage class matrix model, preliminary life table developed by Frazer (1983), to point interim management measures and identify those data most critical refining our knowledge about the dynamics threatened loggerhead sea turtles (Caretta...
Ectothermic vertebrates respond to the temperature of their habitat in a manner that is remarkably similar response more traditional ecological resources such as food. We review primarily from literature on fishes terms concepts related niche theory and competition. The width fundamental thermal about 4°C when measured by mean plus minus one standard deviation distribution occupied laboratory gradient. Fish temperate freshwater appear fall into three guilds along resource axis —cold, cool,...
We evaluated the commercial and recreational fishery landings over past 22 years, first at national level, then for populations of concern (those that are overfished or experiencing overfishing), finally by region. Recreational in 2002 account 4% total marine fish landed United States. With large industrial fisheries excluded (e.g., menhaden pollock), component rises to 10%. Among concern, 23% nationwide, rising 38% South Atlantic 64% Gulf Mexico. Moreover, it affects many most-valued...
Abstract The depletion of fish stocks from global fisheries has been a long‐standing concern. More recently, incidental catch non‐target (termed bycatch) vertebrates also proposed as serious conservation issue. Here we present bycatch assessment for loggerhead and leatherback sea turtles that are incidentally caught by pelagic longlines. We integrate data over 40 nations 13 international observer programmes. Despite infrequent rates encounter, our analyses show more than 200 000 loggerheads...
Tight coupling to ecosystems and dependence on common-pool resources threaten fisheries aquaculture.
The ocean is a soup of its resident species' genetic material, cast off in the forms metabolic waste, shed skin cells, or damaged tissue. Sampling this environmental DNA (eDNA) potentially powerful means assessing whole biological communities, significant advance over manual methods sampling that have historically dominated marine ecology and related fields. Here, we estimate vertebrate fauna 4.5-million-liter mesocosm aquarium tank at Monterey Bay Aquarium known species composition by...
Elasticity analysis is a useful tool in conservation biology. The relative impacts of proportional changes fertility, juvenile survival, and adult survival on asymptotic population growth λ (where ln(λ) = r, the intrinsic rate increase) are determined by vital rates (survival, growth, fertility), which also define life history characteristics species or population. Because we do not have good demographic information for most threatened populations, it to categorize according their related...
Significance Loss of megafauna, termed trophic downgrading, has been found to affect biotic interactions, disturbance regimes, species invasions, and nutrient cycling. One recognized cause in air-breathing marine megafauna is incidental capture or bycatch by fisheries. Characterizing patterns across large ocean regions limited data availability but essential direct conservation management resources. We use empirical identify the global distribution magnitude seabird, mammal, sea turtle three...
In this paper, we modified and updated a stage—based population model for loggerhead sea turtles (Caretta caretta) used the to project potential population—level effects of use turtle excluder devices (TEDs) in trawl fisheries southeastern US. We reduced seven—stage Crouse et al. (1987) five—stage performed sensitivity analyses on matrix. The most sensitive matrix parameters were those dealing with survival while remaining stage, rather than growth from one stage next or reproductive output....
Problems in ocean resource management derive from governance, not science. Ocean zoning would replace mismatched and fragmented approaches with integrated regulatory domains.
Most spatial marine management techniques (e.g., protected areas) draw stationary boundaries around often mobile features, animals, or resource users. While these approaches can work for relatively resources, to be most effective must as fluid in space and time the resources users we aim manage. Instead, a shift towards dynamic ocean is suggested, defined that rapidly changes response its through integration of near real-time biological, oceanographic, social and/or economic data. Dynamic...
Seafood is an essential source of protein for more than 3 billion people worldwide, yet bycatch threatened species in capture fisheries remains a major impediment to sustainability. Management measures designed reduce often result significant economic losses and even closures. Static spatial management approaches can also be rendered ineffective by environmental variability climate change, as productive habitats shift introduce new interactions between human activities protected species. We...
Abstract Fisheries bycatch is a primary driver of population declines in several species marine megafauna (e.g., elasmobranchs, mammals, seabirds, turtles). Characterizing the global seascape using data on rates across fisheries essential for highlighting conservation priorities. We compiled comprehensive database reported turtle gillnet, longline, and trawl worldwide from 1990 to 2008. The total was ∼85,000 turtles, but due small percentage fishing effort observed (typically <1% fleets),...