Search Results - "JENSEN, Olaf P"

Impacts of historical warming on marine fisheries production by Free, Christopher M, Thorson, James T, Pinsky, Malin L, Oken, Kiva L, Wiedenmann, John, Jensen, Olaf P

“…Climate change is altering habitats for marine fishes and invertebrates, but the net effect of these changes on potential food production is unknown. We used…”
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High-levels of microplastic pollution in a large, remote, mountain lake by Free, Christopher M., Jensen, Olaf P., Mason, Sherri A., Eriksen, Marcus, Williamson, Nicholas J., Boldgiv, Bazartseren

“…[Display omitted] •We quantified pelagic microplastic pollution in Lake Hovsgol, Mongolia.•Lake Hovsgol is more polluted with microplastics than Lakes Huron…”
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Effective fisheries management instrumental in improving fish stock status by Hilborn, Ray, Amoroso, Ricardo Oscar, Anderson, Christopher M., Baum, Julia K., Branch, Trevor A., Costello, Christopher, de Moor, Carryn L., Faraj, Abdelmalek, Hively, Daniel, Jensen, Olaf P., Kurota, Hiroyuki, Little, L. Richard, Mace, Pamela, McClanahan, Tim, Melnychuk, Michael C., Minto, Cóilín, Osio, Giacomo Chato, Parma, Ana M., Pons, Maite, Segurado, Susana, Szuwalski, Cody S., Wilson, Jono R., Ye, Yimin

“…Marine fish stocks are an important part of the world food system and are particularly important for many of the poorest people of the world. Most existing…”
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Fuzzy cognitive mapping in support of integrated ecosystem assessments: Developing a shared conceptual model among stakeholders by Vasslides, James M., Jensen, Olaf P.

“…Ecosystem-based approaches, including integrated ecosystem assessments, are a popular methodology being used to holistically address management issues in…”
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Capacity shortfalls hinder the performance of marine protected areas globally by Gill, David A., Mascia, Michael B., Ahmadia, Gabby N., Glew, Louise, Lester, Sarah E., Barnes, Megan, Craigie, Ian, Darling, Emily S., Free, Christopher M., Geldmann, Jonas, Holst, Susie, Jensen, Olaf P., White, Alan T., Basurto, Xavier, Coad, Lauren, Gates, Ruth D., Guannel, Greg, Mumby, Peter J., Thomas, Hannah, Whitmee, Sarah, Woodley, Stephen, Fox, Helen E.

“…Marine protected areas (MPAs) are increasingly being used globally to conserve marine resources. However, whether many MPAs are being effectively and equitably…”
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Frequency and intensity of productivity regime shifts in marine fish stocks by Vert-pre, Katyana A., Amoroso, Ricardo O., Jensen, Olaf P., Hilborn, Ray

“…Fish stocks fluctuate both in abundance and productivity (net population increase), and there are many examples demonstrating that productivity increased or…”
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Resilience and Recovery of Overexploited Marine Populations by Neubauer, Philipp, Jensen, Olaf P., Hutchings, Jeffrey A., Baum, Julia K.

“…Recovery of overexploited marine populations has been slow, and most remain below target biomass levels. A key question is whether this is due to insufficient…”
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Adaptation and resilience of commercial fishers in the Northeast United States during the early stages of the COVID-19 pandemic by Smith, Sarah Lindley, Golden, Abigail S, Ramenzoni, Victoria, Zemeckis, Douglas R, Jensen, Olaf P

“…Commercial fisheries globally experienced numerous and significant perturbations during the early months of the COVID-19 pandemic, affecting the livelihoods of…”
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Contrasting Global Trends in Marine Fishery Status Obtained from Catches and from Stock Assessments by BRANCH, TREVOR A., JENSEN, OLAF P., RICARD, DANIEL, YE, YIMIN, HILBORN, RAY

“…There are differences in perception of the status of fisheries around the world that may partly stem from how data on trends in catches over time have been…”
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Unexpected patterns of fisheries collapse in the world's oceans by Pinsky, Malin L, Jensen, Olaf P, Ricard, Daniel, Palumbi, Stephen R

“…Understanding which species are most vulnerable to human impacts is a prerequisite for designing effective conservation strategies. Surveys of terrestrial…”
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Quantifying fish range shifts across poorly defined management boundaries by Palacios-Abrantes, Juliano, Crosson, Scott, Dumas, Chris, Fujita, Rod, Levine, Arielle, Longo, Catherine, Jensen, Olaf P

“…Management regimes of marine resources that rely on spatial boundaries might be poorly adapted to climate change shifts in species distributions. This is of…”
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Rebuilding Global Fisheries by Worm, Boris, Hilborn, Ray, Baum, Julia K, Branch, Trevor A, Collie, Jeremy S, Costello, Christopher, Fogarty, Michael J, Fulton, Elizabeth A, Hutchings, Jeffrey A, Jennings, Simon, Jensen, Olaf P, Lotze, Heike K, Mace, Pamela M, McClanahan, Tim R, Minto, Cóilín, Palumbi, Stephen R, Parma, Ana M, Ricard, Daniel, Rosenberg, Andrew A, Watson, Reg, Zeller, Dirk

“…After a long history of overexploitation, increasing efforts to restore marine ecosystems and rebuild fisheries are under way. Here, we analyze current trends…”
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Intercomparison, interpretation, and assessment of spring phenology in North America estimated from remote sensing for 1982-2006 by WHITE, MICHAEL A, de BEURS, KIRSTEN M, DIDAN, KAMEL, INOUYE, DAVID W, RICHARDSON, ANDREW D, JENSEN, OLAF P, O'KEEFE, JOHN, ZHANG, GONG, NEMANI, RAMAKRISHNA R, van LEEUWEN, WILLEM J.D, BROWN, JESSLYN F, de WIT, ALLARD, SCHAEPMAN, MICHAEL, LIN, XIOAMAO, DETTINGER, MICHAEL, BAILEY, AMEY S, KIMBALL, JOHN, SCHWARTZ, MARK D, BALDOCCHI, DENNIS D, LEE, JOHN T, LAUENROTH, WILLIAM K

“…Shifts in the timing of spring phenology are a central feature of global change research. Long-term observations of plant phenology have been used to track…”
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A Mixed-Method Approach for Quantifying Illegal Fishing and Its Impact on an Endangered Fish Species by Free, Christopher M, Jensen, Olaf P, Mendsaikhan, Bud

“…Illegal harvest is recognized as a widespread problem in natural resource management. The use of multiple methods for quantifying illegal harvest has been…”
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The dynamics of fish populations at low abundance and prospects for rebuilding and recovery by Hilborn, Ray, Hively, Daniel J, Jensen, Olaf P, Branch, Trevor A

“…Abstract Previous meta-analysis of spawner–recruit relationships suggested that depensatory behaviour is uncommon, and stocks pushed to low abundance are…”
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Effects of biological, economic and management factors on tuna and billfish stock status by Pons, Maite, Branch, Trevor A, Melnychuk, Michael C, Jensen, Olaf P, Brodziak, Jon, Fromentin, Jean M, Harley, Shelton J, Haynie, Alan C, Kell, Laurie T, Maunder, Mark N, Parma, Ana M, Restrepo, Victor R, Sharma, Rishi, Ahrens, Robert, Hilborn, Ray

“…Commercial tunas and billfishes (swordfish, marlins and sailfish) provide considerable catches and income in both developed and developing countries. These…”
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Bayesian estimation of predator diet composition from fatty acids and stable isotopes by Neubauer, Philipp, Jensen, Olaf P

“…Quantitative analysis of stable isotopes (SI) and, more recently, fatty acid profiles (FAP) are useful and complementary tools for estimating the relative…”
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Impacts of Fishing on Hermaphoditic and Treatment of Sex Change in Stock Assessments by Provost, Mikaela M, Jensen, Olaf P

“…Sex-changing fish species present unique challenges for stock assessment and management. Fishing is known to cause size at sex change to decrease and sex…”
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Hierarchical genetic structure and implications for conservation of the world’s largest salmonid, Hucho taimen by Galland, Lanie M., Simmons, James B., Jahner, Joshua P., Luzuriaga-Neira, Agusto R., Sloat, Matthew R., Chandra, Sudeep, Hogan, Zeb, Jensen, Olaf P., Parchman, Thomas L.

“…Population genetic analyses can evaluate how evolutionary processes shape diversity and inform conservation and management of imperiled species. Taimen ( Hucho…”
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Hierarchical analysis of taxonomic variation in intraspecific competition across fish species by Foss-Grant, Andrew P., Zipkin, Elise F., Thorson, James T., Jensen, Olaf P., Fagan, William F.

“…The nature and intensity of intraspecific competition can vary greatly among taxa, yet similarities in these interactions can lead to similar population…”
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