Catalog - Data.gov

Found 72 datasets matching "trophic-levels".

#1 Federal
Pervasive influence of large-scale climate in the dynamics of a terrestrial vertebrate community
- Organization: U.S. Department of Health & Human Services
- Updated: 2025-09-06
Background Large-scale climatic variability has been implicated in the population dynamics of many vertebrates throughout the Northern Hemisphere, but has not been demonstrated to...
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Search relevance: 112.27 | Views last month: 0
#2 Federal
Intermediate Trophic Levels: Interconnections with Fronts, Eddies, and Primary Production
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
The objective of the project was to study the relationships between intermediate trophic level organisms (predominantly zooplankton and small epipelagic and mesopelagic fish), primary production,...
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Search relevance: 93.14 | Views last month: 0
#3 Federal
Coastal Generalized Ecosystem Model (CGEM) 1.0: A Complex Biogeochemical Model for Simulating Lower Trophic Levels and Ecosystem Dynamics
- Organization: U.S. Environmental Protection Agency
- Updated: 2024-03-18
These data describe CGEM functional form output for optional model formulations. These data also include post-processed simulation outputs applied to develop figures in the manuscript.
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Search relevance: 74.08 | Views last month: 0
#4 Federal
Food-web dynamics and isotopic niches in deep-sea communities residing in a submarine canyon and on the adjacent open slopes
- Organization: Department of the Interior
- Updated: 2020-08-30T00:00:00Z
Examination of food webs and trophic niches provide insight into organisms’ functional ecology, yet few studies have examined the trophodynamics within submarine canyons, where the interaction of...
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Search relevance: 53.58 | Views last month: 0
#5 Federal
Lake Erie Collaborative Science and Monitoring Initiative 2014
- Organization: Department of the Interior
- Updated: 2020-08-20T00:00:00Z
In 2014, the USGS Lake Erie Biological Station participated in the Coordinated Science and Monitoring Initiative (CMSI) program, a program founded by the U.S. Environmental Protection Agency (EPA)...
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Search relevance: 50.42 | Views last month: 2
#6 Federal
Diet of scalloped hammerhead shark in eastern Gulf of Mexico
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2017-01-01T00:00:00.000+00:00
Juvenile scalloped hammerhead sharks, Sphyrna lewini, were collected in northwest Florida to examine foraging ecology, bioenergetics, and trophic level (30-60 cm FL mean FL 41.5 cm n 196). Diet...
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Search relevance: 50.04 | Views last month: 1
#7 Federal
Towed Array EK80 Water Column Sonar Data Collected During EN712
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2026-01-12T00:00:00.000+00:00
The Northeast U.S. Shelf Long-Term Ecological Research program (NES-LTER) is designed to improve our ability to predict how climate change will affect the dynamics of the shelf’s planktonic food...
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Search relevance: 49.85 | Views last month: 0
#8 Federal
Towed Array EK80 Water Column Sonar Data Collected During EN727
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2026-01-12T00:00:00.000+00:00
The Northeast U.S. Shelf Long-Term Ecological Research program (NES-LTER) is designed to improve our ability to predict how climate change will affect the dynamics of the shelf’s planktonic food...
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Search relevance: 49.85 | Views last month: 0
#9 Federal
EK80 Water Column Sonar Data Collected During EN720
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-12-13T00:00:00.000+00:00
The Northeast U.S. Shelf Long-Term Ecological Research program (NES-LTER) is designed to improve our ability to predict how climate change will affect the dynamics of the shelf’s planktonic food...
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Search relevance: 49.72 | Views last month: 0
#10 Federal
Towed Array EK80 Water Column Sonar Data Collected During HRS2303
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2026-01-12T00:00:00.000+00:00
The Northeast U.S. Shelf Long-Term Ecological Research program (NES-LTER) is designed to improve our ability to predict how climate change will affect the dynamics of the shelf’s planktonic food...
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Search relevance: 49.72 | Views last month: 0
#11 Federal
EK80 Water Column Sonar Data Collected During EN712
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-12-12T00:00:00.000+00:00
The Northeast U.S. Shelf Long-Term Ecological Research program (NES-LTER) is designed to improve our ability to predict how climate change will affect the dynamics of the shelf’s planktonic food...
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Search relevance: 49.72 | Views last month: 0
#12 Federal
EK80 Water Column Sonar Data Collected During EN706
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-12-12T00:00:00.000+00:00
The Northeast U.S. Shelf Long-Term Ecological Research program (NES-LTER) is designed to improve our ability to predict how climate change will affect the dynamics of the shelf’s planktonic food...
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Search relevance: 49.72 | Views last month: 0
#13 Federal
Townet database - Evaluating the ecological health of Puget Sound's pelagic foodweb
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2017-02-14T00:00:00.000+00:00
To evaluate effects of human influence on the health of Puget Sound's pelagic ecosystems, we propose a sampling program across multiple oceanographic basins measuring key attributes of the pelagic...
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Search relevance: 49.44 | Views last month: 1
#14 Federal
Towed Array EK80 Water Column Sonar Data Collected During AR88
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2026-01-12T00:00:00.000+00:00
The Northeast U.S. Shelf Long-Term Ecological Research program (NES-LTER) is designed to improve our ability to predict how climate change will affect the dynamics of the shelf’s planktonic food...
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Search relevance: 49.04 | Views last month: 0
#15 Federal
EK80 Water Column Sonar Data Collected During HRS2303
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-12-22T00:00:00.000+00:00
The Northeast U.S. Shelf Long-Term Ecological Research program (NES-LTER) is designed to improve our ability to predict how climate change will affect the dynamics of the shelf’s planktonic food...
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Search relevance: 49.04 | Views last month: 0
#16 Federal
Towed Array EK80 Water Column Sonar Data Collected During AE2426
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2026-01-12T00:00:00.000+00:00
The Northeast U.S. Shelf Long-Term Ecological Research program (NES-LTER) is designed to improve our ability to predict how climate change will affect the dynamics of the shelf’s planktonic food...
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Search relevance: 49.04 | Views last month: 0
#17 Federal
EPA2011 Microbial & nutrient database - Evaluating the ecological health of Puget Sound's pelagic foodweb
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2018-02-21T00:00:00.000+00:00
To evaluate effects of human influence on the health of Puget Sound's pelagic ecosystems, we propose a sampling program across multiple oceanographic basins measuring key attributes of the pelagic...
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Search relevance: 48.79 | Views last month: 0
#18 Federal
EK80 Water Column Sonar Data Collected During AE2426
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-12-12T00:00:00.000+00:00
The Northeast U.S. Shelf Long-Term Ecological Research program (NES-LTER) is designed to improve our ability to predict how climate change will affect the dynamics of the shelf’s planktonic food...
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Search relevance: 48.73 | Views last month: 0
#19 Federal
EK80 Water Column Sonar Data Collected During EN715
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-12-12T00:00:00.000+00:00
The Northeast U.S. Shelf Long-Term Ecological Research program (NES-LTER) is designed to improve our ability to predict how climate change will affect the dynamics of the shelf’s planktonic food...
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- +1 more
Search relevance: 48.58 | Views last month: 0
#20 Federal
EK80 Water Column Sonar Data Collected During EN727
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-12-13T00:00:00.000+00:00
The Northeast U.S. Shelf Long-Term Ecological Research program (NES-LTER) is designed to improve our ability to predict how climate change will affect the dynamics of the shelf’s planktonic food...
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- +1 more
Search relevance: 48.58 | Views last month: 0

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