Search Results - "WEEKS, SCARLA J."

Greenhouse gas, upwelling-favorable winds, and the future of coastal ocean upwelling ecosystems by BAKUN, ANDREW, FIELD, DAVID B, REDONDO-RODRIGUEZ, ANA, WEEKS, SCARLA J

“…Coastal ocean upwelling ecosystems generally represent the most productive large marine ecosystems of the world's oceans, in terms of both primary production…”
Get full text

Stable isotope and signature fatty acid analyses suggest reef manta rays feed on demersal zooplankton by Couturier, Lydie I E, Rohner, Christoph A, Richardson, Anthony J, Marshall, Andrea D, Jaine, Fabrice R A, Bennett, Michael B, Townsend, Kathy A, Weeks, Scarla J, Nichols, Peter D

“…Assessing the trophic role and interaction of an animal is key to understanding its general ecology and dynamics. Conventional techniques used to elucidate…”
Get full text

Prey Density Threshold and Tidal Influence on Reef Manta Ray Foraging at an Aggregation Site on the Great Barrier Reef by Armstrong, Asia O, Armstrong, Amelia J, Jaine, Fabrice R A, Couturier, Lydie I E, Fiora, Kym, Uribe-Palomino, Julian, Weeks, Scarla J, Townsend, Kathy A, Bennett, Mike B, Richardson, Anthony J

“…Large tropical and sub-tropical marine animals must meet their energetic requirements in a largely oligotrophic environment. Many planktivorous elasmobranchs,…”
Get full text

When giants turn up: sighting trends, environmental influences and habitat use of the manta ray Manta alfredi at a coral reef by Jaine, Fabrice R A, Couturier, Lydie I E, Weeks, Scarla J, Townsend, Kathy A, Bennett, Michael B, Fiora, Kym, Richardson, Anthony J

“…Manta rays Manta alfredi are present all year round at Lady Elliot Island (LEI) in the southern Great Barrier Reef, Australia, with peaks in abundance during…”
Get full text

Satellite tagging highlights the importance of productive Mozambican coastal waters to the ecology and conservation of whale sharks by Rohner, Christoph A, Richardson, Anthony J, Jaine, Fabrice R A, Bennett, Michael B, Weeks, Scarla J, Cliff, Geremy, Robinson, David P, Reeve-Arnold, Katie E, Pierce, Simon J

“…The whale shark is an endangered, highly migratory species with a wide, albeit patchy, distribution through tropical oceans. Ten aerial survey flights along…”
Get full text

Manta birostris, predator of the deep? Insight into the diet of the giant manta ray through stable isotope analysis by Burgess, Katherine B., Couturier, Lydie I. E., Marshall, Andrea D., Richardson, Anthony J., Weeks, Scarla J., Bennett, Michael B.

“…The characterization of diet for the giant manta ray Manta birostris has been problematic given their large-scale movement patterns and the difficulty in…”
Get full text

Greenhouse gas buildup, sardines, submarine eruptions and the possibility of abrupt degradation of intense marine upwelling ecosystems by Bakun, Andrew, Weeks, Scarla J.

“…Widespread hypoxia and massive eruptions of noxious, radiatively active gases currently characterize the world's strongest eastern ocean upwelling zone…”
Get full text

Unique Sequence of Events Triggers Manta Ray Feeding Frenzy in the Southern Great Barrier Reef, Australia by Weeks, Scarla J, Magno-Canto, Marites M, Jaine, Fabrice R A, Brodie, Jon, Richardson, Anthony J

“…Manta rays are classified as Vulnerable to Extinction on the IUCN Red List for Threatened Species. In Australia, a key aggregation site for reef manta rays is…”
Get full text

Laser photogrammetry improves size and demographic estimates for whale sharks by Rohner, Christoph A, Richardson, Anthony J, Prebble, Clare E M, Marshall, Andrea D, Bennett, Michael B, Weeks, Scarla J, Cliff, Geremy, Wintner, Sabine P, Pierce, Simon J

“…Whale sharks Rhincodon typus are globally threatened, but a lack of biological and demographic information hampers an accurate assessment of their…”
Get full text

Offshore diplomacy, or how seabirds mitigate intra-specific competition: a case study based on GPS tracking of Cape gannets from neighbouring colonies by Grémillet, David, Dell’Omo, Giacomo, Ryan, Peter G., Peters, Gerrit, Ropert-Coudert, Yan, Weeks, Scarla J.

“…How do seabirds deal with intra-specific competition for food? We addressed this question in a study of the foraging behaviour of 91 Cape gannetsMorus…”
Get full text

Ocean warming alters species abundance patterns and increases species diversity in an African sub-tropical reef-fish community by LLOYD, PENN, PLAGÁNYI, ÉVA E., WEEKS, SCARLA J., MAGNO-CANTO, MARITES, PLAGÁNYI, GYULA

“…The impacts of ocean warming resulting from recent climate change on the abundance patterns of marine species have been well documented in temperate seas of…”
Get full text

Upwelling linked to warm summers and bleaching on the Great Barrier Reef by Berkelmans, Ray, Weeks, Scarla J., Steinberg, Craig R.

“…We investigate a range of indices to quantify upwelling on the central Great Barrier Reef (GBR), Australia, so that environmental and biological relationships…”
Get full text

Bottom Reflectance in Ocean Color Satellite Remote Sensing for Coral Reef Environments by Reichstetter, Martina, Fearns, Peter, Weeks, Scarla, McKinna, Lachlan, Roelfsema, Chris, Furnas, Miles

“…Most ocean color algorithms are designed for optically deep waters, where the seafloor has little or no effect on remote sensing reflectance. This can lead to…”
Get full text

Assessing the adequacy of current fisheries management under changing climate: a southern synopsis by Plagányi, Éva E., Weeks, Scarla J., Skewes, Tim D., Gibbs, Mark T., Poloczanska, Elvira S., Norman-López, Ana, Blamey, Laura K., Soares, Muri, Robinson, William M. L.

“…Plagányi, É. E., Weeks, J. S., Skewes, T. D., Gibbs, M. T., Poloczanska, E. S., Norman-López, A., Blamey, L. K., Soares, M., and Robinson, W. M. L. 2011…”
Get full text

A semianalytical ocean color inversion algorithm with explicit water column depth and substrate reflectance parameterization by McKinna, Lachlan I. W., Fearns, Peter R. C., Weeks, Scarla J., Werdell, P. Jeremy, Reichstetter, Martina, Franz, Bryan A., Shea, Donald M., Feldman, Gene C.

“…A semianalytical ocean color inversion algorithm was developed for improving retrievals of inherent optical properties (IOPs) in optically shallow waters. In…”
Get full text

Satellite imaging Massive emissions of toxic gas in the Atlantic by Weeks, Scarla J, Currie, Bronwen, Bakun, Andrew

“…Recurrent eruptions of toxic hydrogen sulphide gas in the waters along the Namibian coast off southwestern Africa have been considered to be local features…”
Get full text

Hydrogen sulphide eruptions in the Atlantic Ocean off southern Africa: implications of a new view based on SeaWiFS satellite imagery by Weeks, Scarla J., Currie, Bronwen, Bakun, Andrew, Peard, Kathleen R.

“…Conventional wisdom has held that eruptions of toxic hydrogen sulphide that occur from time to time in the ocean off southwestern Africa were rather isolated…”
Get full text

The marine ecosystem off Peru: What are the secrets of its fishery productivity and what might its future hold? by Bakun, Andrew, Weeks, Scarla J.

Get full text

Massive emissions of toxic gas in the Atlantic by Weeks, Scarla J, Currie, Bronwen, Bakun, Andrew

“…Recurrent eruptions of toxic hydrogen sulphide gas in the waters along the Namibian coast off southwestern Africa have been considered to be local features…”
Get full text

Adverse feedback sequences in exploited marine systems: are deliberate interruptive actions warranted? by Bakun, Andrew, Weeks, Scarla J.

“…Several mechanisms for self‐enhancing feedback instabilities in marine ecosystems are identified and briefly elaborated. It appears that adverse phases of…”
Get full text