National Geographic

Scientific Publications

Showing results 1 - 25 of 83

Size, age, and habitat determine effectiveness of Palaus marine protected areas

Alan M. Friedlander, Yimnang Golbuu, Enric Ballesteros, Jennifer E. Caselle, Marine Gouezo, Dawnette Olsudong, Enric Sala

ABSTRACT Palau has a rich heritage of conservation that has evolved from the traditional moratoria on fishing, or bul, to more western Marine Protected Areas (MPAs), while still retaining elements of customary management and tenure. In 2003, the Pal...

Plos One
Published: Thursday, March 30, 2017


Coral reef grazer-benthos dynamics complicated by invasive algae in a small marine reserve

Kostantinos A. Stamoulis, Alan M. Friedlander, Carl G. Meyer, Iria Fernandez-Silva

ABSTRACT Blooms of alien invasive marine algae have become common, greatly altering the health and stability of nearshore marine ecosystems. Concurrently, herbivorous fishes have been severely overfished in many locations worldwide, contributing to ...

Scientific Reports
Published: Thursday, March 9, 2017


Participatory fishery monitoring is successful for understanding the reproductive biology needed for local fisheries management

Schemmel E, Friedlander A

ABSTRACT Tropical fisheries management should rely on reproductive biology to inform management regulations; however, this information is often lacking and can be highly variable over in space and time. It is unfeasible for many fisheries, especiall...

Environmental Biology Of Fishes
Published: Saturday, December 17, 2016


Unexpected high vulnerability of functions in wilderness areas: evidence from coral reef fishes

Stphanie D'agata, Laurent Vigliola, Nicholas A. J. Graham, Laurent Wantiez, Valeriano Parravicini, Sbastien Villger, Gerard Mou-Tham, Philippe Frolla, Alan M. Friedlander, Michel Kulbicki, David Mouillot

ABSTRACT High species richness is thought to support the delivery of multiple ecosystem functions and services under changing environments. Yet, some species might perform unique functional roles while others are redundant. Thus, the benefits of hig...

Proceedings Of The Royal Society Of Biology
Published: Wednesday, December 7, 2016


The codevelopment of coastal fisheriesmonitoring methods to support local management.

Schemmel E, Friedlander AM, Andrade P, Keakealani K, Castro LM, Wiggins C, Wilcox BA, Yasutake Y, Kittinger JN.

ABSTRACT Small-scale fisheries across the globe provide critical food security, livelihoods, and human well-being, but are threatened by a combination of local and global stressors, including overexploitation, pollution, and climate change. Particip...

Ecology And Society
Published: Thursday, November 24, 2016


Movement patterns of reef predators in a small isolated Marine Protected Area with implications for resource management

Alexander Filous, Alan Friedlander, Barrett Wolfe, Kostantinos Stamoulis, Stephen Scherrer, Adam Wong, Kristy Stone, Russell Sparks

ABSTRACT Reef predators play a critical role in maintaining the balance of marine ecosystems and are an important component of Hawaiis recreational and commercial fisheries. In response to the increasing anthropogenic demands on these populations ac...

Marine Biology
Published: Tuesday, November 22, 2016


So long and thanks for all the fish: overexploitation of the regionally endemic Galapagos Grouper Mycteroperca olfax (Jenyns, 1840)

Paolo Usseglio, Alan M. Friedlander, Haruko Koike, Johanna Zimmerhackel, Anna Schuhbauer, Tyler Eddy, Pelayo Salinas-de-Le_n

ABSTRACT The regionally endemic Galapagos Grouper, locally known as bacalao, is one of the most highly prized finfish species within the Galapagos Marine Reserve (GMR). Concerns of overfishing, coupled with a lack of fishing regulations aimed at thi...

Plos One
Published: Tuesday, October 25, 2016


Co-operation between large-scale MPAs: successfulexperiences from the Pacific Ocean.

Friedlander AM, Wagner D, Gymer CH, Aulani Wilhelm T, Lewis Naia, Brooke S, Kikiloi K, Varmer O.

ABSTRACT Nations have recently committed to protecting 2030% of the ocean at various global summits; however, marine protected areas currently cover <3% of the ocean. Large-scale marine protected areas (LSMPAs, >100 000 km2) are a new concept in glo...

Aquatic Conservation
Published: Tuesday, September 6, 2016


L'atoll de Clipperton (_le de la Passion): Biodiversit, menaces, et recommandations pour sa conservation

Christian Jost, Alan Friedlander, Enric Ballesteros, Eric Brown, Jenn Caselle, Brad Henning, Mauricio Hoyos, Pelayo Salinas de Le_n, Paul Rose, Chris Thompson, Enric Sala

Clipperton lle de La Passion est le seul atoll corallien et territoire franais du Pacifique oriental et lune des les les plus isoles au monde. Au regard des constats faits lors dune mission National Geographic Pristine Seas de mars 2016 et de ceux ...

Published: Tuesday, August 30, 2016


Fish banks:An economic model to scale marine conservation.

Sala E, Costello C, De Bourbon Parme J, Fiorese M, Heal G, Kelleher K, Moffitt R, Morgan L, Plunkett J, Rechberger KD, Rosenberg AA, Sumaila R.

ABSTRACT Only 2.1% of the ocean is in actively managed marine protected areas (MPAs). Achieving the United Nations' target of 10% of the ocean protected by 2020 will require an aggressively implemented mix of large MPAs in remote areas, and small MP...

Marine Policy
Published: Sunday, July 31, 2016


Marine reserves lag behind wilderness in the conservation of key functional roles

D'agata S, Mouillot D, Wantiez L, Friedlander A, Kulbicki M, Vigliola L

ABSTRACT Although marine reserves represent one of the most effective management responses to human impacts, their capacity to sustain the same diversity of species, functional roles and biomass of reef fishes as wilderness areas remains questionabl...

Nature Communications
Published: Wednesday, June 29, 2016


Bright spots among the worlds coral reefs

Joshua E. Cinner, Cindy Huchery, M. Aaron MacNeil, Nicholas A.J. Graham, Tim R. McClanahan, Joseph Maina, Eva Maire, John N. Kittinger, Christina C. Hicks, Camilo Mora, Edward H. Allison, Stephanie DAgata, Andrew Hoey, David A. Feary, Larry Crowder, Ivor D. Williams, Michel Kulbicki, Laurent Vigliola, Laurent Wantiez, Graham Edgar, Rick D. Stuart-Smith, Stuart A. Sandin, Alison L. Green, Marah J. Hardt, Maria Beger, Alan Friedlander, Stuart J. Campbell, Katherine E. Holmes, Shaun K. Wilson, Eran Brokovich, Andrew J. Brooks, Juan J. Cruz-Motta, David J. Booth, Pascale Chabanet, Charlie Gough, Mark Tupper, Sebastian C. A. Ferse, U. Rashid Sumaila, David Mouillot

ABSTRACT Ongoing declines in the structure and function of the worlds coral reefs1, 2 require novel approaches to sustain these ecosystems and the millions of people who depend on them3. A presently unexplored approach that draws on theory and pract...

Published: Wednesday, June 15, 2016


Effects of gear restriction on the abundance of juvenile fishes along sandy beaches in Hawaii

Mary K. Donovan, Alan M. Friedlander, Paolo Usseglio, Whitney Goodell, Ily Iglesias, Eva M. Schemmel, Kostantinos A. Stamoulis, Alexander Filous, Jonatha Giddens, Keith Kamikawa, Haruko Koike, Kaylyn McCoy, Christopher B. Wall

ABSTRACT In 2007, due to growing concerns of declines in nearshore fisheries in Hawaii, a ban on gillnets was implemented in designated areas around the island of Oahu in the main Hawaiian Islands. Utilizing a 17 year time-series of juvenile fish ab...

Plos One
Published: Thursday, May 12, 2016


Largest global shark biomass found in the northern Galpagos Islands of Darwin and Wolf

Pelayo Salinas de Le_n, David Acua-Marrero, Etienne Rastoin, Alan M. Friedlander, Mary K. Donovan, Enric Sala

ABSTRACT Overfishing has dramatically depleted sharks and other large predatory fishes worldwide except for a few remote and/or well-protected areas. The islands of Darwin and Wolf in the far north of the Galapagos Marine Reserve (GMR) are known for...

Published: Tuesday, May 10, 2016


Reproductive life history of the introduced peacock grouper Cephalopholis argus in Hawaii

Schemmel E, Donovan M, Wiggins C, Anzivino M, Friedlander A.

ABSTRACT This research investigated the reproductive biology (sex ratio, hermaphroditic pattern, size and age at maturity) of Cephalopholis argus, known locally in Hawaii by its Tahitian name roi. The results suggest that C. argus exhibits monandric...

Journal Of Fish Biology
Published: Wednesday, April 13, 2016


The structure and diversity of freshwater diatom assemblages from Franz Josef Land Archipelago: a northern outpost for freshwater diatoms

Sergi Pla-Rabs, Paul B. Hamilton, Enric Ballesteros, Maria Gavrilo, Alan M. Friedlander, Enric Sala

ABSTRACT We examined diatom assemblages from 18 stream and pond samples in the Franz Josef Land Archipelago (FJL), the most northern land of Eurasia. More than 216 taxa were observed, revealing a rich circumpolar diatom flora, including many undescr...

Published: Thursday, February 18, 2016


Near-island biological hotspots in barren ocean basins

Jamison M. Gove, Margaret A. McManus, Anna B. Neuheimer, Jeffrey J. Polovina, Jeffrey C. Drazen, Craig R. Smith, Mark A. Merrifield, Alan M. Friedlander, Julia S. Ehses, Charles W. Young, Amanda K. Dillon & Gareth J. Williams

Phytoplankton production drives marine ecosystem trophic-structure and global fisheries yields. Phytoplankton biomass is particularly influential near coral reef islands and atolls that span the oligotrophic tropical oceans. The paradoxical enhanceme...

Nature Communications
Published: Tuesday, February 16, 2016


Humans and seasonal climate variability threaten large-bodied coral reef fish with small ranges

C. Mellin, D. Mouillot, M. Kulbicki, T. R. McClanahan, L. Vigliola, C. J. A. Bradshaw, R. E. Brainard, P. Chabanet, G. J. Edgar, D. A. Fordham, A. M. Friedlander, V. Parravicini, A. M. M. Sequeira, R. D. Stuart-Smith, L. Wantiez & M. J. Caley

ABSTRACT Coral reefs are among the most species-rich and threatened ecosystems on Earth, yet the extent to which human stressors determine species occurrences, compared with biogeography or environmental conditions, remains largely unknown. With eve...

Nature Communications
Published: Wednesday, February 3, 2016


Energetic and ecological constraints on population density of reef fishes

D. R. Barneche, M. Kulbicki, S. R. Floeter, A. M. Friedlander, A. P. Allen

ABSTRACT Population ecology has classically focused on pairwise species interactions, hindering the description of general patterns and processes of population abundance at large spatial scales. Here we use the metabolic theory of ecology as a frame...

Proceedings Of The Royal Society Of Biology
Published: Wednesday, January 20, 2016


Marine Biodiversity in Juan Fernndez and Desventuradas Islands, Chile: Global Endemism Hotspots

Alan M. Friedlander, Enric Ballesteros, Jennifer E. Caselle, Carlos F. Gaymer, Alvaro T. Palma, Ignacio Petit, Eduardo Varas, Alex Muoz Wilson, Enric Sala

ABSTRACT The Juan Fernndez and Desventuradas islands are among the few oceanic islands belonging to Chile. They possess a unique mix of tropical, subtropical, and temperate marine species, and although close to continental South America, elements of...

Plos One
Published: Wednesday, January 6, 2016


Re-evaluating the health of coral reef communities: baselines and evidence for human impacts across the central Pacific

Jennifer E. Smith, Rusty Brainard, Amanda Carter, Saray Grillo, Clinton Edwards, Jill Harris, Levi Lewis, David Obura, Forest Rohwer, Enric Sala, Peter S. Vroom, Stuart Sandin

ABSTRACT Numerous studies have documented declines in the abundance of reef-building corals over the last several decades and in some but not all cases, phase shifts to dominance by macroalgae have occurred. These assessments, however, often ignore ...

Proceedings Of The Royal Society Of Biology
Published: Wednesday, January 6, 2016


Metagenomic and satellite analyses of red snow in the Russian Arctic

Nao Hisakawa, Steven D. Quistad, Eric R. Hester, Daria Martynova, Heather Maughan, Enric Sala, Maria V. Gavrilo, Forest Rohwer

ABSTRACT Cryophilic algae thrive in liquid water within snow and ice in alpine and polar regions worldwide. Blooms of these algae lower albedo (reflection of sunlight), thereby altering melting patterns (Kohshima, Seko & Yoshimura, 1993; Lutz et al....

Published: Thursday, December 10, 2015


Improved estimates of age, growth and reproduction for the regionally endemic Galapagos sailfin grouper Mycteroperca olfax (Jenyns, 1840)

Usseglio P1, Friedlander AM2, DeMartini EE3, Schuhbauer A4, Schemmel E5, Salinas de Lon P6.

ABSTRACT The Galapagos Sailfin grouper, Mycteroperca olfax, locally known as bacalao and listed as vulnerable by the IUCN, is culturally, economically, and ecologically important to the Galapagos archipelago and its people. It is regionally endemic ...

Published: Thursday, September 17, 2015


From Reef to Table: Social and Ecological Factors Affecting Coral Reef Fisheries, Artisanal Seafood Supply Chains, and Seafood Security

John N. Kittinger, Lida T. Teneva, Haruko Koike, Kostantinos A. Stamoulis, Daniela S. Kittinger, Kirsten L. L. Oleson, Eric Conklin, Mahana Gomes, Bart Wilcox, Alan M. Friedlander

ABSTRACT Ocean and coastal ecosystems provide critical fisheries, coastal protection, and cultural benefits to communities worldwide, but these services are diminishing due to local and global threats. In response, place-based strategies involve com...

Plos One
Published: Wednesday, August 5, 2015


Ocean calamities: Hyped litany or legitimate concern?

Jennifer Jacquet, James Estes, Jeremy Jackson, Ayana E. Johnson, Nancy Knowlton, Loren Mcclenachan, Daniel Pauly, Enric Sala

ABSTRACT Conservation scientists have expressed concern that impending marine extinctions are often overlooked (Dulvy et al. 2003) and that, by the time enough data are collected to justify protection, it is too late (Taylor and Gerrodette 1993). Fo...

Published: Wednesday, July 8, 2015

More In Pristine Seas

Follow pristine Seas


Share Pristine Seas