Data Releases
The data collected and the techniques used by USGS scientists should conform to or reference national and international standards and protocols if they exist and when they are relevant and appropriate. For datasets of a given type, and if national or international metadata standards exist, the data are indexed with metadata that facilitates access and integration.
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Hurricane Maria's Most Mobile (MMM) landslides in nine study areas in the Lares, Naranjito and Utuado Municipalities, Puerto Rico Hurricane Maria's Most Mobile (MMM) landslides in nine study areas in the Lares, Naranjito and Utuado Municipalities, Puerto Rico
In 2017, Hurricane Maria triggered widespread landsliding in Puerto Rico. Published landslide inventories from Hurricane Maria (Bessette-Kirton and others, 2019; Baxstrom and others, 2021a, 2021b; Einbund and others, 2021a, 2021b) provided detailed mapping, including 2919 locations of headscarp points, travel distance lines, source areas, and landslide-affected areas (combined source and...
Behavioral responses to different sensory stimuli in larval Grass Carp Ctenopharyngodon idella Behavioral responses to different sensory stimuli in larval Grass Carp Ctenopharyngodon idella
Sensory input and systems are critical for organisms to respond to their environment, allowing movement to suitable habitat and potential escape from predators. While many stages of grass carp ontogeny have been described, neurosensory development remains unclear. Using behavioral tests, we looked at phonotaxis and chemotaxis from initial gas bladder inflation to the development of the...
Physical and Imagery-Based Morphological Measures of Pacific Walruses in Human Care Physical and Imagery-Based Morphological Measures of Pacific Walruses in Human Care
This dataset contains morphological measures of 21 Pacific walruses in human care in the United States, Belgium, and Germany measured directly and via an aerially mounted camera in 2022 and 2023. Six individuals were measured twice: once at their typical annual lowest body mass and once at their typical annual maximum body mass. The remaining 15 individuals were measured on one occasion...
Water chemistry, stable isotopes, and trace metals in sediment, water and biota in Torch Lake and Gratiot Lake, Keweenaw Peninsula, Michigan, USA, July and October 2021 Water chemistry, stable isotopes, and trace metals in sediment, water and biota in Torch Lake and Gratiot Lake, Keweenaw Peninsula, Michigan, USA, July and October 2021
This data release includes sampling location data, laboratory processed surface water chemistry data (anions, cations, total nitrogen, dissolved organic carbon, deuterium, trace metals), laboratory processed pore water chemistry data (anions, cations, total nitrogen, dissolved organic carbon, trace metals), laboratory process sediment data (trace metals), and whole-body trace metal...
Contaminants measured in multiple environmental media in the Lake Mead National Recreation Area NV/AZ, USA in 2010 Contaminants measured in multiple environmental media in the Lake Mead National Recreation Area NV/AZ, USA in 2010
Concentrations of a wide variety of environmental organic contaminants were measured in surface waters of the Lake Mead National Recreation Area (Nevada and Arizona) in 2010 to provide a measure of exposure to resident fish species. These contaminants were sampled using the semipermeable membrane device (SPMD) and the polar organic chemical integrative sampler (POCIS) which allow for the
Measurements of arsenic in Sonora mud turtles and their food web at Montezuma Well, Arizona 2010-2015 Measurements of arsenic in Sonora mud turtles and their food web at Montezuma Well, Arizona 2010-2015
These data were compiled to better understand the geogenic arsenic cycle in a unique natural wetland in central Arizona. The objective of our study was to determine the role of Sonora mud turtles in the arsenic cycle of a simple food web. These data represent the first study to do so even though a previous studies left out turtles as the top predator and consumer. The data were collected...