scholarly journals Anatomy of Subinertial Waves Along the Patagonian Shelf Break in a 1/12° Global Operational Model

2020 ◽  
Vol 125 (12) ◽  
Author(s):  
Léa Poli ◽  
Camila Artana ◽  
Christine Provost ◽  
Jérôme Sirven ◽  
Nathalie Sennéchael ◽  
...  
Keyword(s):  
Shelf Break ◽  
Operational Model ◽  
Patagonian Shelf

scholarly journals Seasonal and interannual variability of calcite in the vicinity of the Patagonian shelf break (38°S–52°S)

2006 ◽  
Vol 33 (16) ◽  
Author(s):  
Sergio R. Signorini ◽  
Virginia M. T. Garcia ◽  
Alberto R. Piola ◽  
Carlos A. E. Garcia ◽  
Mauricio M. Mata ◽  
...  
Keyword(s):  
Interannual Variability ◽  
Shelf Break ◽  
Seasonal And Interannual Variability ◽  
Patagonian Shelf

Upper trophic structure in the Atlantic Patagonian shelf break as inferred from stable isotope analysis

2018 ◽  
Vol 36 (3) ◽  
pp. 717-725 ◽  
Author(s):  
Guoping Zhu ◽  
Haiting Zhang ◽  
Yang Yang ◽  
Shaoqin Wang ◽  
Lian Wei ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Stable Isotope Analysis ◽  
Trophic Structure ◽  
Isotope Analysis ◽  
Shelf Break ◽  
Patagonian Shelf

How fast is the Patagonian shelf-break acidifying?

2018 ◽  
Vol 178 ◽  
pp. 1-14 ◽  
Author(s):  
Iole B.M. Orselli ◽  
Rodrigo Kerr ◽  
Rosane G. Ito ◽  
Virginia M. Tavano ◽  
Carlos Rafael B. Mendes ◽  
...  
Keyword(s):  
Shelf Break ◽  
Patagonian Shelf

scholarly journals Multiple thermal fronts near the Patagonian shelf break

2008 ◽  
Vol 35 (2) ◽  
Author(s):  
Bárbara C. Franco ◽  
Alberto R. Piola ◽  
Andrés L. Rivas ◽  
Ana Baldoni ◽  
Juan P. Pisoni
Keyword(s):  
Shelf Break ◽  
Patagonian Shelf

scholarly journals Physical processes controlling passive larval transport at the Patagonian Shelf Break Front

2017 ◽  
Vol 124 ◽  
pp. 17-25 ◽  
Author(s):  
Bárbara C. Franco ◽  
Elbio D. Palma ◽  
Vincent Combes ◽  
Mario L. Lasta
Keyword(s):  
Shelf Break ◽  
Larval Transport ◽  
Physical Processes ◽  
Patagonian Shelf

scholarly journals Estimates of seabird by-catch along the Patagonian Shelf by Argentine longline fishing vessels, 1999–2001

2003 ◽  
Vol 13 (4) ◽  
pp. 273-281 ◽  
Author(s):  
Marco Favero ◽  
Camilo Eduardo Khatchikian ◽  
Alejandro Arias ◽  
María Patricia Silva Rodriguez ◽  
Guillermo Cañete ◽  
...  
Keyword(s):  
Survey Methods ◽  
Bird Species ◽  
Shelf Break ◽  
Mitigation Measures ◽  
Patagonian Shelf ◽  
Fishing Vessels ◽  
Thalassarche Melanophris ◽  
Procellaria Aequinoctialis ◽  
By Catch ◽  
Incidental Mortality

The incidental mortality of albatrosses Diomedeidae and petrels Procellariidae by longline fishing vessels, has been assessed and analysed in several areas of the globe. We provide the first direct estimates of incidental mortality rates of albatrosses and petrels along the Argentine Shelf and shelf break. The estimated by-catch rate for the whole period analysed (1999-2001) was 0.04 birds/1,000 hooks, with a maximum of 0.20 birds/1,000 hooks observed in 1999. Annual captures averaged 1,160 birds; however, the large variation observed indicates that annual by-catch may be in the order of thousands, with around 10,000 seabirds being killed by longliners through the study period. Most of the captures were observed along the Patagonian shelf break. At least 12 bird species were incidentally taken, with Black-browed Albatrosses Thalassarche melanophris and White-chinned Petrels Procellaria aequinoctialis accounting for about 80% of total captures. The information provided in this study allowed the design and future implementation of mitigation measures and new survey methods onboard longliners operating in Atlantic waters on the Argentine shelf.

scholarly journals Biology of the skates Bathyraja brachyurops and B. griseocauda in waters around the Falkland Islands, Southwest Atlantic

2008 ◽  
Vol 65 (4) ◽  
pp. 560-570 ◽  
Author(s):  
Alexander I. Arkhipkin ◽  
Nina Baumgartner ◽  
Paul Brickle ◽  
Vladimir V. Laptikhovsky ◽  
Joost H. W. Pompert ◽  
...  
Keyword(s):  
Shelf Break ◽  
Falkland Islands ◽  
Marine Science ◽  
Commercial Fishery ◽  
Southwest Atlantic ◽  
Spawning Grounds ◽  
Male And Female ◽  
Vertebral Centra ◽  
Patagonian Shelf ◽  
Growth Increments

Abstract Arkhipkin, A. I., Baumgartner, N., Brickle, P., Laptikhovsky, V. V., Pompert, J. H. W., and Shcherbich, Z. N. 2008. Biology of the skates Bathyraja brachyurops and B. griseocauda in waters around the Falkland Islands, Southwest Atlantic. – ICES Journal of Marine Science, 65: 560–570. The distributions and length compositions of two large, abundant skates, broadnose skate Bathyraja brachyurops and grey-tail skate B. griseocauda, were studied using an extensive dataset (∼48 000 skates) collected from the commercial fishery and research cruises on the southeastern Patagonian Shelf around the Falkland Islands between 1992 and 2006. Bathyraja brachyurops mostly inhabit the shelf at depths shallower than 250 m, whereas B. griseocauda are found deeper (>250 m), off the shelf break and slope. Small individuals of both species are most segregated spatially. Growth increments on caudal thorns and vertebral centra revealed that B. brachyurops grow slower and have a shorter lifespan, attaining a maximum total length of 125 cm at 20 years, compared with B. griseocauda (∼150 cm at 28 years). Maturity is attained at 8–10 years for male and female B. brachyurops, and at 15 and 17 years for B. griseocauda, respectively. Spawning takes place on spatially segregated spawning grounds, B. brachyurops reproducing above the shelf break, and B. griseocauda just below the shelf break throughout the year, with a smaller proportion of females of both species laying eggs in winter.

Anatomy of subinertial waves along the Patagonian shelf break in a 1/12° global operational model

2021 ◽  
Author(s):  
Lea Poli ◽  
Camila Artana ◽  
Christine Provost ◽  
Jérôme Sirven ◽  
Nathalie Sennéchael ◽  
...  
Keyword(s):  
Phase Speed ◽  
Drake Passage ◽  
Shelf Break ◽  
Ocean Reanalysis ◽  
Operational Model ◽  
The Core ◽  
Propagating Waves ◽  
Abrupt Changes ◽  
Temporal Structures ◽  
Stress Variations

<p>The Patagonian slope hosts a variety of waves. We used a state of the art ocean reanalysis to examine waves at the shelf break and in the core of the Malvinas Current (MC) at periods larger than 10 days. Statistics over 25 years indicated three types of signals: in phase signals at specific locations of the shelf break to the south of 47°S, fast propagating signals all along the shelf break (phase speed from 140 cm/s to 300cm/s) at periods between  5 and  110 days, and slower signals in the core of the MC (phase speeds from 10 cm/s to 30cm/s) at 20-day, 60-day and 100-day periods. </p><p>        The large zonal wind stress variations south of 47°S forced in-phase along-slope velocity variations and triggered fast propagating waves at distinct sites corresponding to abrupt changes in the shelf break orientation. The shelf break waves modulated the intensity of the inshore jet, which varied from 0 to 30 cm/s at 100 m depth, and had spatial and temporal structures and scales consistent with those of observed upwelling events. Slow propagating waves in the core of the MC had along-slope wavelengths between 450 and 1200 km and were not forced by the local winds. They were tracked back to the Drake Passage and the Malvinas Escarpment.</p>

Transitioning Business for a Circular Economy

2019 ◽  
Vol 2 (1) ◽  
Author(s):  
Susan EVANS
Keyword(s):  
Professional Practice ◽  
Circular Economy ◽  
Radical Change ◽  
Virtual Space ◽  
Professional Experience ◽  
Operational Model ◽  
New Vision ◽  
To Come ◽  
Space Requirements

This case study explores the strategic business opportunities, for Lane Crawford, an iconic luxury department store, to transition in a circular economy towards sustainability. A new experimentation framework was developed and conducted among cross departmental employees, during a Design Lab, with intention to co-create novel Circular Economy business concepts towards a new vision: the later was a reframe of the old system based on the principles of sustainability; to move beyond a linear operational model towards a circular economy that can contribute to a regenerative society. This work draws on both academic and professional experience and was conducted through professional practice. It was found that innovative co-created concepts, output from the Design Lab, can create radical change in a circular economy that is holistically beneficial and financially viable; looking forward to extract greater value a)Internal organization requires remodeling to transform towards a circular economy; b)Requirement for more horizonal teams across departments vs solely vertical; c)New language and relationships are required to be able to transition towards a circular economy; d)Some form of physical and virtual space requirements, for cross-disciplinary teams to come together to co-create; e)Ability to iterate, learn and evolve requires agency across the business

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