Regionalization of International Whale Management: The Case of the North Atlantic Marine Mammals Commission

ARCTIC ◽  
1993 ◽  
Vol 46 (2) ◽  
Author(s):  
Alf Häkon Hoel
Keyword(s):  
North Atlantic ◽  
Marine Mammals ◽  
The North ◽  
The North Atlantic

scholarly journals First monk seal from the Southern Hemisphere rewrites the evolutionary history of true seals

2020 ◽  
Vol 287 (1938) ◽  
pp. 20202318
Author(s):  
James P. Rule ◽  
Justin W. Adams ◽  
Felix G. Marx ◽  
Alistair R. Evans ◽  
Alan J. D. Tennyson ◽  
...  
Keyword(s):  
Southern Hemisphere ◽  
North Atlantic ◽  
Marine Mammals ◽  
Evolutionary History ◽  
Major Change ◽  
The North ◽  
History Of ◽  
Entire History ◽  
The North Atlantic ◽  
Monk Seals

Living true seals (phocids) are the most widely dispersed semi-aquatic marine mammals, and comprise geographically separate northern (phocine) and southern (monachine) groups. Both are thought to have evolved in the North Atlantic, with only two monachine lineages—elephant seals and lobodontins—subsequently crossing the equator. The third and most basal monachine tribe, the monk seals, have hitherto been interpreted as exclusively northern and (sub)tropical throughout their entire history. Here, we describe a new species of extinct monk seal from the Pliocene of New Zealand, the first of its kind from the Southern Hemisphere, based on one of the best-preserved and richest samples of seal fossils worldwide. This unanticipated discovery reveals that all three monachine tribes once coexisted south of the equator, and forces a profound revision of their evolutionary history: rather than primarily diversifying in the North Atlantic, monachines largely evolved in the Southern Hemisphere, and from this southern cradle later reinvaded the north. Our results suggest that true seals crossed the equator over eight times in their history. Overall, they more than double the age of the north–south dichotomy characterizing living true seals and confirms a surprisingly recent major change in southern phocid diversity.

Integrating cultural and biological perspectives on long-term human-walrus (Odobenus rosmarus rosmarus) interactions across the North Atlantic

2019 ◽  
pp. 1-21
Author(s):  
Xénia Keighley ◽  
Morten Tange Olsen ◽  
Peter Jordan
Keyword(s):  
North Atlantic ◽  
Marine Mammals ◽  
Historical Ecology ◽  
Faunal Remains ◽  
Population Modelling ◽  
The North ◽  
Odobenus Rosmarus ◽  
Biological Studies ◽  
The North Atlantic ◽  
Odobenus Rosmarus Rosmarus

AbstractThe hunting of marine mammals as a source of subsistence, trade, and commercial revenue has formed an important part of human cultures across the North Atlantic. One important prey species has been the Atlantic walrus (Odobenus rosmarus rosmarus), sought after for meat, skin, blubber, ivory, and bone. Unfortunately, biological studies of current walrus populations and studies across the humanities and social sciences into past use and hunting of walruses, have been poorly integrated. Disciplinary boundaries have left a gap in understanding the reciprocal effects of human-walrus interactions. Emerging interdisciplinary methods offer new opportunities to write the historical ecology of Atlantic walruses. The integration of methods such as ancient DNA, isotopes, past population modelling, zooarchaeological assemblages, and ethnographic interviews can now be used to answer previously intractable questions. For example, how has walrus hunting shaped and been influenced by changes in human settlement and trade, what have been the cumulative impacts on walrus populations, the extent of anthropogenic selective pressures or the effect of changing hunting regimes on particular populations of walruses? New, collaborative research approaches applied to the wealth of Arctic archaeological faunal remains already housed in museum collections offer a unique chance to explore the past dynamics of human-animal interactions.

Evidence of Brucella infection in marine mammals in the North Atlantic Ocean

1999 ◽  
Vol 144 (21) ◽  
pp. 588-592 ◽  
Author(s):  
M. Tryland ◽  
L. Kleivane ◽  
A. Alfredsson ◽  
M. Kjeld ◽  
A. Arnason ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
North Atlantic ◽  
Marine Mammals ◽  
North Atlantic Ocean ◽  
The North ◽  
Brucella Infection ◽  
The North Atlantic

scholarly journals Polychlorinated biphenyl (PCB) concentrations and profiles in marine mammals from the North Atlantic Ocean

Chemosphere ◽  
2021 ◽  
pp. 132639
Author(s):  
David Megson ◽  
Thomas Brown ◽  
Gareth Rhys Jones ◽  
Mathew Robson ◽  
Glenn Johnson ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
North Atlantic ◽  
Marine Mammals ◽  
Polychlorinated Biphenyl ◽  
North Atlantic Ocean ◽  
The North ◽  
The North Atlantic

scholarly journals International legal protection of seals

Fisheries ◽  
2021 ◽  
Vol 2021 (6) ◽  
pp. 58-62
Author(s):  
Kamil Bekyashev
Keyword(s):  
North Atlantic ◽  
Coastal Waters ◽  
Marine Mammals ◽  
Legal Protection ◽  
The North ◽  
Antarctic Seals ◽  
The Russian Federation ◽  
The North Atlantic ◽  
The Government ◽  
The City

The article gives a brief description of the various species of seals. In the city of Arkhangelsk there is a monument to a seal. Two species of seals live in the coastal waters of Russia: the Steinger seal and the European seal. They are listed in the Red Book. The article analyzes the conventions and agreements on the protection of seals: Convention for the Conservation of Antarctic Seals 1972, the Agreement on the cooperation in research, conservation and management of marine mammals in the North Atlantic 1992, the Agreement between the Government of the USSR and the Government of Norway on Measures to regulate fishing, sealing and protection of seal stocks in the Northeast Atlantic 1957. The decisions of the 51st session of the Joint Norwegian–Russian Fisheries Commission are analyzed. The article ends with an outline of the contribution of the Russian Federation to the rational seal fishery.

Relationship of DDE/ΣDDT in Marine Mammals to the Chronology of DDT Input into the Ecosystem

1984 ◽  
Vol 41 (6) ◽  
pp. 840-844 ◽  
Author(s):  
Alex Aguilar
Keyword(s):  
North Atlantic ◽  
Strong Correlation ◽  
Marine Mammals ◽  
Marine Biota ◽  
The North ◽  
A Value ◽  
The North Atlantic ◽  
Relationship Of

The DDE/ΣDDT (ΣDDT = DDT + DDE + DDD) ratios in the blubber of North Atlantic pinnipeds and odontocete cetaceans, as determined by several scientists and surveys, are compiled to obtain a biannual mean series. Conversion of DDT to DDE is interpreted as being due not only to the marine mammals but also to the overall detoxifying activity of the North Atlantic marine biota. The change of these ratios during the period 1964–81 is examined and a strong correlation between these ratios and time is found in both groups, which demonstrates that such an index can be tentatively used when one assesses the chronology of pollutant input into the ecosystem. An equilibrium value may be reached at the beginning of the next century when the ratio reaches a value of approximately 0.60, provided that no new inputs of contaminant into North Atlantic waters exist.

scholarly journals DIVERSIDAD Y CONSERVACIÓN DE LOS MAMIFEROS MARINOS

1995 ◽  
Vol 1 (1) ◽  
pp. 22 ◽  
Author(s):  
Alejandro Torres G. ◽  
Carlos Esquivel M. ◽  
Gerardo Ceballos González
Keyword(s):  
North Atlantic ◽  
Gulf Of California ◽  
Marine Mammals ◽  
Caribbean Sea ◽  
Mexican Pacific ◽  
The North ◽  
Mammal Fauna ◽  
Palabras Clave ◽  
The Pacific ◽  
The North Atlantic

Resumen. En México se han registrado un total de 47 especies de mamíferos marinos distribuidos en tres órdenes: Cetacea (40 spp), Carnívora (6 spp) y Sirenia (1 spp). La mayor riqueza de especies se presenta en la costa occidental de Baja California, seguida del Golfo de California, el Golfo de México-Mar Caribe y finalmente el Pacífico Sur Mexicano. La mastofauna marina de México presenta organismos con afinidades biogeográficas muy diversas ya que se encuentran especies del Pacífico, del Atlántico Norte, pantropicales y endémicas. El análisis de la situación actual de los mamíferos marinos del país mostró que, por lo menos, siete especies se encuentran en riesgo de extinción. Se analizan los factores más importantes de riesgo en el país para cada especie. Abstract. A total of 47 species of marine mammals has been recorded from Mexico. They belong to three orders: Cetacea (40 spp). Carnívora (6 spp) and Sirenia (1 spp). The highest species richness is found on Baja California's west coast, followed by the Gulf of California, the Gulf of Mexico-Caribbean Sea and, at the en d. the southern part of the Mexican Pacific. The marine mammal fauna in Mexico has a variety of biogeographical affinities because there are species from the Pacific, the North Atlantic, pantropical, and endemic ones. An analysis of the current situation of the marine mammals in Mexico showed that at least seven species are at risk of extinction. We analyze the most important risk factors for each species in the country. Palabras clave: Distribución, mamíferos marinos, México, Cetacea. Sirenia.

The Currents of the North Atlantic

1892 ◽  
Vol 34 (872supp) ◽  
pp. 13940-13941
Author(s):  
Richard Beynon
Keyword(s):  
North Atlantic ◽  
The North ◽  
The North Atlantic
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