scholarly journals Hexachlorocyclohexanes in Arctic and Antarctic Marine Ecosystems

10.5772/14092 ◽  
2011 ◽  
Author(s):  
Alessandra Cincinelli ◽  
Tania Martellini ◽  
Simonetta Corsolini
Keyword(s):  
Marine Ecosystems ◽  
Antarctic Marine

Subantarctic and Antarctic Marine Ecosystems: outlining patterns and processes in a changing ocean

2019 ◽  
Vol 174 ◽  
pp. 1-6
Author(s):  
J.L. Iriarte ◽  
I. Gómez ◽  
H.E. González ◽  
L. Nahuelhual ◽  
J.M. Navarro
Keyword(s):  
Marine Ecosystems ◽  
Antarctic Marine ◽  
Patterns And Processes

Sub-Antarctic and Antarctic Marine Ecosystems: An Unexplored Ecosystem of Fungal Diversity

2019 ◽  
pp. 221-242 ◽  
Author(s):  
Luiz Henrique Rosa ◽  
Franciane Maria Pellizzari ◽  
Mayara Baptistucci Ogaki ◽  
Maria Thereza Rafaela de Paula ◽  
Andrés Mansilla ◽  
...  
Keyword(s):  
Fungal Diversity ◽  
Marine Ecosystems ◽  
Antarctic Marine

Temporal Variability in Antarctic Marine Ecosystems: Periodic Fluctuations in the Phocid Seals

1991 ◽  
Vol 48 (4) ◽  
pp. 631-639 ◽  
Author(s):  
J. Ward Testa ◽  
Gary Oehlert ◽  
David G. Ainley ◽  
John L. Bengtson ◽  
Donald B. Siniff ◽  
...  
Keyword(s):  
Large Scale ◽  
Southern Oscillation ◽  
Marine Ecosystems ◽  
Reproductive Rate ◽  
Data Sets ◽  
Weddell Seals ◽  
Antarctic Marine ◽  
Phocid Seals ◽  
Crabeater Seals ◽  
Lobodon Carcinophagus

Three species of seals around Antarctica have shown quasi-cyclic patterns in some aspect of their biology: the age structure of crabeater seals (Lobodon carcinophagus) around the Antarctic Peninsula has shown strong cohorts separated by 4- to 5-yr intervals; juvenile leopard seals (Hydrurga leptonyx) have appeared in unusually large numbers at Macquarie Island, also at 4- to 5-yr intervals; and Weddell seals (Leptonychotes weddellii) in McMurdo Sound have undergone fluctuations in reproductive rate every 4–6 yr. Complex demodulation was used to compare patterns among these three data sets and with the Southern Oscillation Index (SOI). All of the seal data sets showed evidence of cyclical behavior when demodulated at a period of 5 yr. The Weddell seals were generally in phase with the SOI since the Weddell series began in 1970. The leopard seals and SOI were in phase in the 1960's, but thereafter the SOI series led the leopard seal series by about one quarter of a cycle. The crabeater series was more complicated, but similarities with the other data sets also were seen. If these tentative observations are confirmed, they point to large-scale oceanographic variation, possibly related to the El Niño – Southern Oscillation (ENSO), as an important mechanism in Antarctic marine ecosystems.

Finding the ‘Conservation’ in the Convention on the Conservation of Antarctic Marine Living Resources

2021 ◽  
Vol 12 (1) ◽  
pp. 132-155
Author(s):  
Lynda Goldsworthy
Keyword(s):  
Fisheries Management ◽  
Marine Ecosystems ◽  
Management Measures ◽  
Antarctic Marine ◽  
Unregulated Fishing

The Convention on the Conservation of Antarctic Marine Living Resources (CCAMLR) was adopted in the 1980s amid concerns of a growth in unregulated fishing in the region. The Convention’s objective – ‘the conservation of Antarctic marine living resources’ – reflects the negotiators’ intention for CCAMLR’s responsibilities to extend beyond fisheries responsibilities to the conservation of all species and marine ecosystems in the Convention’s area. The intention of CCAMLR’s objective has generated significant debate throughout CCAMLR’s 39 years of operation, and there appears to be no common agreed understanding. A review of management measures adopted by the Commission is one method for considering how the Commission has approached delivering its objective. This paper reviews management measures in force from 1982 to 2019 and concludes that, while CCAMLR has made significant advances regarding the delivery of ecosystem-based and precautionary fisheries management, it has generated significantly fewer management measures that might stand independently of fisheries management or extend to species or habitats not directly impacted by fishing operations.

scholarly journals Correction to: A review on the biodiversity, distribution and trophic role of cephalopods in the Arctic and Antarctic marine ecosystems under a changing ocean

2019 ◽  
Vol 166 (7) ◽  
Author(s):  
José C. Xavier ◽  
Yves Cherel ◽  
Louise Allcock ◽  
Rui Rosa ◽  
Rushan M. Sabirov ◽  
...  
Keyword(s):  
Marine Ecosystems ◽  
The Arctic ◽  
Antarctic Marine ◽  
Trophic Role

scholarly journals Antarctic Futures: An Assessment of Climate-Driven Changes in Ecosystem Structure, Function, and Service Provisioning in the Southern Ocean

2020 ◽  
Vol 12 (1) ◽  
pp. 87-120 ◽  
Author(s):  
A.D. Rogers ◽  
B.A.V. Frinault ◽  
D.K.A. Barnes ◽  
N.L. Bindoff ◽  
R. Downie ◽  
...  
Keyword(s):  
Climate Change ◽  
Ecosystem Services ◽  
Southern Ocean ◽  
Stratospheric Ozone ◽  
Marine Ecosystems ◽  
Ecosystem Structure ◽  
Negative Consequences ◽  
Key Species ◽  
Antarctic Marine ◽  
Impacts Of Climate Change

In this article, we analyze the impacts of climate change on Antarctic marine ecosystems. Observations demonstrate large-scale changes in the physical variables and circulation of the Southern Ocean driven by warming, stratospheric ozone depletion, and a positive Southern Annular Mode. Alterations in the physical environment are driving change through all levels of Antarctic marine food webs, which differ regionally. The distributions of key species, such as Antarctic krill, are also changing. Differential responses among predators reflect differences in species ecology. The impacts of climate change on Antarctic biodiversity will likely vary for different communities and depend on species range. Coastal communities and those of sub-Antarctic islands, especially range-restricted endemic communities, will likely suffer the greatest negative consequences of climate change. Simultaneously, ecosystem services in the Southern Ocean will likely increase. Such decoupling of ecosystem services and endemic species will require consideration in the management of human activities such as fishing in Antarctic marine ecosystems.

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