Search Results - "HEARN, Alex R"

Association of whale sharks (Rhincodon typus) with thermo-biological frontal systems of the eastern tropical Pacific by Ryan, John P, Green, Jonathan R, Espinoza, Eduardo, Hearn, Alex R

“…Satellite tracking of 27 whale sharks in the eastern tropical Pacific, examined in relation to environmental data, indicates preferential occupancy of…”
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Correction: Association of whale sharks (Rhincodon typus) with thermo-biological frontal systems of the eastern tropical Pacific by Ryan, John P, Green, Jonathan R, Espinoza, Eduardo, Hearn, Alex R

“…[This corrects the article DOI: 10.1371/journal.pone.0182599.]…”
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Multidecadal underwater surveys reveal declines in marine turtles by Saltzman, Julia, Hearn, Alex R., Fuentes, Mariana M. P. B., Steiner, Todd, Arauz, Randall, Macdonald, Catherine, Heidemeyer, Maike, White, Easton R.

“…Marine turtles are a group of imperiled marine megafauna particularly vulnerable to anthropogenic stressors. Most long‐term studies of marine turtles are based…”
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Advisory Editor profile: Alex Hearn by Docker, Margaret F., Hearn, Alex R.

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Satellite Tracking and Site Fidelity of Short Ocean Sunfish, Mola ramsayi, in the Galapagos Islands by Thys, Tierney M., Hearn, Alex R., Weng, Kevin C., Ryan, John P., Peñaherrera-Palma, César

“…Ocean sunfishes, with their peculiar morphology, large size, and surface habits, are valuable assets in ecotourism destinations worldwide. This study…”
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Movement and vertical habitat use of yellowfin tuna Thunnus albacares in a vertically compressed habitat: the Galápagos Marine Reserve by Rohner, Christoph A., Naveira Garabato, Alberto C., Hearn, Alex R.

“…Tropical pelagic predators are exploited by fisheries and their movements are influenced by factors including prey availability, temperature, and dissolved…”
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Fishing effort dynamics around the Galápagos Marine Reserve as depicted by AIS data by Chinacalle-Martínez, Nicole, Hearn, Alex R, Boerder, Kristina, Murillo Posada, Juan Carlos, López-Macías, Jean, Peñaherrera-Palma, César R

“…The waters around the Galápagos Marine Reserve (GMR) are important fishing grounds for authorized artisanal vessels fishing within the reserve as well as for…”
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Performance of an ultrasonic telemetry positioning system under varied environmental conditions by Steel, Anna E, Coates, Julia H, Hearn, Alex R, Klimley, A Peter

“…BACKGROUND: Advances in ultrasonic telemetry, including the ability to accurately position a transmitter within an array of hydrophone receivers, have led to…”
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Ecuador’s sharks face threats from within by Hearn, Alex R., Bucaram, Santiago J.

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Diel use of a saltwater creek by white-tip reef sharks Triaenodon obesus (Carcharhiniformes: Carcharhinidae) in Academy Bay, Galapagos Islands by Peñiaherrera, César, Hearn, Alex R, Kuhn, Angela

“…White-tip reef sharks are common inhabitants of the shallow waters surrounding the Galapagos Islands, where several known aggregation sites have become…”
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Studies of the movement ecology of sharks justify the existence and expansion of marine protected areas in the Eastern Pacific Ocean by Klimley, A. Peter, Arauz, Randall, Bessudo, Sandra, Chávez, Elpis J., Chinacalle, Nicole, Espinoza, Eduardo, Green, Jonathan, Hearn, Alex R., Hoyos-Padilla, Mauricio E., Nalesso, Elena, Ketchum, James T., Fischer, Chris, Ladino, Felipe, Shillinger, George, Soler, Germán, Steiner, Todd, Peñaherrera‑Palma, César

“…We present a compilation of published telemetric results, complemented by the addition of new results where necessary, to justify the expansion of the marine…”
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Adult female whale sharks make long-distance movements past Darwin Island (Galapagos, Ecuador) in the Eastern Tropical Pacific by Hearn, Alex R., Green, J., Román, M. H., Acuña-Marrero, D., Espinoza, E., Klimley, A. P.

“…Most previous studies on whale shark movements have been on immature sharks. Here, we present tracking data for large females that we tagged at the Galapagos…”
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Correction to: Studies of the movement ecology of sharks justify the existence and expansion of marine protected areas in the Eastern Pacific Ocean by Klimley, A. Peter, Arauz, Randall, Bessudo, Sandra, Chávez, Elpis J., Chinacalle, Nicole, Espinoza, Eduardo, Green, Jonathan, Hearn, Alex R., Hoyos-Padilla, Mauricio E., Nalesso, Elena, Ketchum, James T., Fischer, Chris, Ladino, Felipe, Shillinger, George, Soler, Germán, Steiner, Todd, Peñaherrera-Palma, César

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Spatiotemporal occurrence of green sturgeon at dredging and placement sites in the San Francisco estuary by Chapman, Eric D., Miller, Emily A., Singer, Gabriel P., Hearn, Alex R., Thomas, Michael J., Brostoff, William N., LaCivita, Peter E., Klimley, A. Peter

“…We used acoustic telemetry to determine the spatial and temporal overlap between adult Green Sturgeon movements and areas affected by dredging within the San…”
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Diel movements of out-migrating Chinook salmon (Oncorhynchus tshawytscha) and steelhead trout (Oncorhynchus mykiss) smolts in the Sacramento/San Joaquin watershed by Chapman, Eric D., Hearn, Alex R., Michel, Cyril J., Ammann, Arnold J., Lindley, Steven T., Thomas, Michael J., Sandstrom, Philip T., Singer, Gabriel P., Peterson, Matthew L., MacFarlane, R. Bruce, Klimley, A. Peter

“…We used ultrasonic telemetry to describe the movement patterns of late-fall run Chinook salmon ( Oncorhynchus tshawytscha ) and steelhead trout ( O. mykiss )…”
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Movements of steelhead (Oncorhynchus mykiss) smolts migrating through the San Francisco Bay Estuary by Chapman, Eric D, Hearn, Alex R, Singer, Gabriel P, Brostoff, William N, LaCivita, Peter E, Klimley, A. Peter

“…We used acoustic telemetry to monitor the out-migration of 1,000 steelhead smolts ( Oncorhynchus mykiss ) through the San Francisco Bay Estuary during spring…”
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Movements of out-migrating late-fall run Chinook salmon (Oncorhynchus tshawytscha) smolts through the San Francisco Bay Estuary by Hearn, Alex R, Chapman, Eric D, Singer, Gabriel P, Brostoff, William N, LaCivita, Peter E, Klimley, A. Peter

“…One thousand late-fall run Chinook salmon (Oncorhynchus tshawytscha) hatchery reared smolts were fitted with ultrasonic coded tags over a two-year period (in…”
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Behavior, movements, and habitat use of adult green sturgeon, Acipenser medirostris, in the upper Sacramento River by Thomas, Michael J, Peterson, Matthew L, Chapman, Eric D, Hearn, Alex R, Singer, Gabriel P, Battleson, Ryan D, Klimley, A. Peter

“…We conducted the first continuous shipboard tracking of southern Distinct Population Segment green sturgeon, Acipenser medirostris, in the Sacramento River…”
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Adult female whale sharks make long-distance movements past Darwin Island (Galapagos, Ecuador) in the Eastern Tropical Pacific by Hearn, Alex R., Green, J., Román, M. H., Acuña-Marrero, D., Espinoza, E., Klimley, A. P.

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Interannual variation of reach specific migratory success for Sacramento River hatchery yearling late-fall run Chinook salmon (Oncorhynchus tshawytscha) and steelhead trout (Oncorhynchus mykiss) by Singer, Gabriel P., Hearn, Alex R., Chapman, Eric D., Peterson, Matthew L., LaCivita, Peter E., Brostoff, William N., Bremner, Allison, Klimley, A. P.

“…The release of hatchery reared salmonid smolts is a common management tool aimed at enhancing depleted wild stocks and maintaining fisheries throughout…”
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