401 Works

Final amendment 31 to the fishery management plan for reef fish resources in the Gulf of Mexico

Roy E. Crabtree & Eric C. Schwaab

Environmental assessment and regulatory impact review for a rule to reduce sea turtle bycatch by the eastern Gulf of Mexico bottom longline component of the reef fish fishery

Steven Branstetter, Roy E. Crabtree, Nicholas Farmer, Susan D. Gerhart, Stephen G. Holiman, Peter Hood, Michael, (Anthropologist) Jepson, David Keys, Jennifer Lee, Cynthia A. Meyer & Lawrence A. Perruso

Modifications to the shallow-water grouper accountability measures : final amendment 38 to the fishery management plan for the reef fish resources of the Gulf of Mexico, including environmental assessment, fishery impact statement, regulatory impact review, and Regulatory Flexibility Act analysis

Roy E. Crabtree

Framework action to the fishery management plan for the reef fish resources of the Gulf of Mexico including environmental assessment, regulatory impact review, and regulatory flexibility act analysis

Rich Malinowski, Steven Atran, David Records, Assane Diagne, Ava Lasseter, Christina Package & Mike Larkin

Final framework action to the fishery management plan for the reef fish resources of the Gulf of Mexico including environmental assessment, regulatory impact review, and regulatory flexibility act analysis : recreational accountability measures for red snapper

Assane Diagne, Roy E. Crabtree, Peter Hood, Stephen Holiman, Tony Lamberte & Ava Lasseter

Framework action to set the annual catch limit and bag limit for vermilion snapper, set annual catch limit for yellowtail snapper, and modify the venting tool requirement (including environmental assessment, regulatory impact review, and regulatory flexibility act analysis) : framework action to the fishery management plan for the reef fish resources of the Gulf of Mexico

Roy E. Crabtree

Final regulatory amendment to the reef fish fishery management plan : greater amberjack - recreational fishing season closure : including an environmental assessment, regulatory impact review, Regulatory Flexibility Act analysis, and social impact analysis

Roy E. Crabtree

Generally, we don't assign DOIs to anything prior to 2015, but we can go back that for for you.

Roy E. Crabtree

Technical Documentation, State of the Ecosystem

State of the Ecosystem 2020: Mid-Atlantic

Amendment 14: to the Snapper Grouper Fishery Management Plan

Heather Blough, Myra Brouwer, Rick DeVictor, Douglas A. (Douglas Alan) DeVries, Denise Johnson, Kathi Kitner, Vishwanie Maharaj, Jack McGovern, Kerry O'Malley, Roger Pugliese, Brent William Stoffle & Jim Waters

Amendment 37: Modification to the hogfish fishery management unit, fishing level specifications for the two South Atlantic hogfish stocks, rebuilding plan for the Florida Keys/East Florida stock, and establishment/revision of management measures for both stocks

Myra Brouwer, Nikhil Mehta, Rick DeVictor, Jennifer L Lee, Brian Cheuvront, Chip Collier, Nick Farmer, Mike Larkin, David Records, Michael Jepson & Kari MacLauchlin

Cold call: the acoustic repertoire of Ross Sea killer whales (Orcinus orca, Type C) in McMurdo Sound, Antarctica

Rebecca Wellard, Robert Pitman, John Durban & Christine Erbe
Killer whales (Orcinus orca) are top marine predators occurring globally. In Antarctic waters, five ecotypes have been described, with Type C being the smallest form of killer whale known. Acoustic recordings of nine encounters of Type C killer whales were collected in 2012 and 2013 in McMurdo Sound, Ross Sea. In a combined 3.5 hours of recordings, 6386 killer whale vocalisations were detected and graded based on their signal-to-noise ratio. Spectrograms of the highest-quality calls...

Changes in dive patterns of leatherback turtles with sea surface temperature and potential foraging habitats

Junichi Okuyama, Scott Benson, Jeffrey Seminoff & Peter Dutton
Marine mesotherms are able to occupy broader thermal niches than ectotherms; however, this means they must exhibit greater tolerance to diverse environmental conditions across the ocean. Knowledge remains limited about how differences in environmental conditions within occupied habitats affect the bioenergetics of mesotherms and associated ecological traits. Here, we report that leatherback turtles (Dermochelys coriacea) migrating across the North Pacific changed their dive behavior regionally, possibly in response to changes in sea surface temperature and...

Data from: Avoiding tipping points in fisheries management through Gaussian process dynamic programming

Carl Boettiger, Marc Mangel & Stephan Munch
Model uncertainty and limited data are fundamental challenges to robust management of human intervention in a natural system. These challenges are acutely highlighted by concerns that many ecological systems may contain tipping points, such as Allee population sizes. Before a collapse, we do not know where the tipping points lie, if they exist at all. Hence, we know neither a complete model of the system dynamics nor do we have access to data in some...

Data from: Natal and breeding philopatry of female Steller sea lions in southeastern Alaska

Kelly K. Hastings, Lauri A. Jemison, Grey W. Pendleton, Kimberly L. Raum-Suryan & Kenneth W. Pitcher
Information on drivers of dispersal is critical for wildlife conservation but is rare for long-lived marine mammal species with large geographic ranges. We fit multi-state mark-recapture models to resighting data of 369 known-aged Steller sea lion (Eumetopias jubatus) females marked as pups on their natal rookeries in southeastern Alaska from 1994-2005 and monitored from 2001-15. We estimated probabilities of females being first observed parous at their natal site (natal philopatry), and of not moving breeding...

Data from: A global perspective on the trophic geography of sharks

Christopher Stephen Bird, Ana Veríssimo, Sarah Magozzi, Kátya G. Abrantes, Alex Aguilar, Hassan Al-Reasi, Adam Barnett, Dana M. Bethea, Gérard Biais, Asuncion Borrell, Marc Bouchoucha, Mariah Boyle, Edward J. Brooks, Juerg Brunnschweiler, Paco Bustamante, Aaron Carlisle, Diana Catarino, Stéphane Caut, Yves Cherel, Tiphaine Chouvelon, Diana Churchill, Javier Ciancio, Julien Claes, Ana Colaço, Dean L. Courtney … & Clive N. Trueman
Sharks are a diverse group of mobile predators that forage across varied spatial scales and have the potential to influence food web dynamics. The ecological consequences of recent declines in shark biomass may extend across broader geographic ranges if shark taxa display common behavioural traits. By tracking the original site of photosynthetic fixation of carbon atoms that were ultimately assimilated into muscle tissues of 5,394 sharks from 114 species, we identify globally consistent biogeographic traits...

Data from: Water, water everywhere: environmental DNA can unlock population structure in elusive marine species

Kim M. Parsons, Meredith Everett, Marilyn Dahlheim & Linda Park
Determining management units for natural populations is critical for effective conservation and management. However, collecting the requisite tissue samples for population genetic analyses remains the primary limiting factor for a number of marine species. The harbor porpoise (Phocoena phocoena), one of the smallest cetaceans in the Northern Hemisphere, is a primary example. These elusive, highly mobile small animals confound traditional approaches of collecting tissue samples for genetic analyses, yet their nearshore habitat makes them highly...

Data from: Contrasting patterns of genetic diversity at three different genetic markers in a marine mammal metapopulation

Joseph I Hoffman, Kanchon Dasmahapatra, William Amos, Caleb Phillips, Tom Gelatt & John Bickham
Many studies use genetic markers to explore population structure and variability within species. However, only a minority use more than one type of marker and, despite increasing evidence of a strong link between heterozygosity and individual fitness, few ask whether diversity correlates with population trajectory. To address these issues, we analysed data from the Steller's sea lion, Eumetiopias jubatus, where three stocks are distributed over a vast geographic range and where both genetic samples and...

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