https://doi.org/10.82144/d9436c2d https://seamap.env.duke.edu/dataset/315 https://www.gbif.org/dataset/ba383cae-b440-4a69-a606-a669d6a7638e https://obis.org/dataset/47d7790c-a82c-43b0-8c5f-6a181cd8cb79 James Gilbert Department of Wildlife Ecology, University of Maine Primary contact james.gilbert@umit.maine.edu OBIS-SEAMAP Marine Geospatial Ecology Lab, Duke University

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seamap-contact@duke.edu https://seamap.env.duke.edu OBIS-SEAMAP Marine Geospatial Ecology Lab, Duke University

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seamap-contact@duke.edu https://seamap.env.duke.edu distributor James Gilbert Department of Wildlife Ecology, University of Maine Primary contact james.gilbert@umit.maine.edu owner 2025-07-31 eng Original provider: University of Maine Dataset credits: NOAA Northeast Fisheries Science Center James Gilbert, University of Maine Wendy Dow, Duke University Abstract: Seal populations in the northwest Atlantic are thriving, yet few grant dollars go to seal projects in the northeast region. According to many researchers and managers in the region, the healthy state of stocks is exactly why we should be studying seals. Seal and human activities along the coast often result in conflicts, which will undoubtedly increase as the population and range of both seals and humans increase. The east coast of the United States lacks a management plan for seals. A problem that seriously impedes management is that managers do not know where the seals are and more specifically, where haul-out sites are. This atlas is designed to aid managers and researchers in the management and conservation of seals in the northwest Atlantic. The atlas and the data used to create the atlas can be accessed through OBIS-SEAMAP. Occurrence GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml Observation GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml Marine Biology Visual sighting Marine Animal Survey Marine mammals Shore Visual Sighting N/A The original data were transposed so that each record represents seals abundance at a single ledge on a single day. As this dataset is a time-series, an appropriate way to represent it is to show it with time-series charts by region. Currently, OBIS-SEAMAP lets you see it on Google Earth with the charts. Not all seasons are represented in this dataset, and distributions of seals may be different in other seasons. Lack of a count for a ledge on a particular date does not necessarily mean the ledge was not observed. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License. https://seamap.env.duke.edu/dataset/315 Oceans,North Atlantic Ocean -70.696305 -66.97502 44.930973 42.969185 1981-03-15 2001-06-04 Scientific names are based on the Integrated Taxonomic Information System (ITIS). species Halichoerus grypus Atlantic gray seal species Phoca vitulina Harbor seal The purpose of this dataset and atlas is to provide data from a series of aerial surveys conducted between 1981 and 2001 of harbor and gray seal haul-out sites in Maine. notPlanned James Gilbert Department of Wildlife Ecology, University of Maine Primary contact james.gilbert@umit.maine.edu NA NA NA James Gilbert owner NA zd_315 2025-07-31T14:13:32-04:00 dataset Gilbert, J. 2013. ME harbor and gray seals time series. Version 1.0.0. Dataset published in OBIS-SEAMAP. https://doi.org/10.82144/d9436c2d. OBIS-SEAMAP Dataset Page UTF-8 Interactive map https://seamap.env.duke.edu/dataset/315 FGDC Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/315/fgdc EML Metadata UTF-8 XML https://seamap.env.duke.edu/dataset/315/eml OBIS-SEAMAP zd_315 zd_315 Gilbert, J.R., G.T. Waring, K.M. Wynne, and N. Guldager. 2005. Changes in abundance of harbor seals in Maine, 1981-2001. Marine Mammal Science: 21(3):519-535.