scholarly journals From pup production to quotas: current status of harp seals in the Greenland Sea

2013 ◽  
Vol 71 (3) ◽  
pp. 537-545 ◽  
Author(s):  
Tor Arne Øigård ◽  
Tore Haug ◽  
Kjell Tormod Nilssen
Keyword(s):  
Population Size ◽  
North Atlantic ◽  
Population Model ◽  
Current Status ◽  
Total Abundance ◽  
The North ◽  
Production Estimate ◽  
Pagophilus Groenlandicus ◽  
The Status ◽  
The North Atlantic

Abstract Harp seals (Pagophilus groenlandicus) have been harvested for centuries in the North Atlantic. Estimating abundance and monitoring changes in population size are critical for the management of the species. In March 2012, the harp seal pup production was estimated from aerial photographic surveys over the whelping areas. A total area of 305 km2 was photographed and 6034 pups were counted on the photos. From this the total pup production estimate was 89 590 ( s.e. = 12 310, CV = 13.7%). The status of the stock was subsequently assessed by fitting a population model to the independent pup production estimate, the historical catch data, and the historical reproduction data. The 2013 total abundance (including pups) was estimated to be 627 410 (95% CI = 470 540–784 280) harp seals. We demonstrate how the model is used in assessment when exploring the effect of various catch scenarios on future predictions.

Complement to the knowledge of the Haploops species (Crustacea, Gammaridea, Ampeliscidae), with the description of two new species from North Atlantic Ocean. [Contribution to the knowledge of the Haploops genus. 10.]

Zootaxa ◽  
2021 ◽  
Vol 5048 (2) ◽  
pp. 151-175
Author(s):  
R.A. KAIM-MALKA ◽  
D. BELLAN-SANTINI ◽  
J.C. DAUVIN
Keyword(s):  
Atlantic Ocean ◽  
North Atlantic ◽  
North Atlantic Ocean ◽  
Morphological Characters ◽  
Valid Species ◽  
Single Pair ◽  
The North ◽  
Two New Species ◽  
The Status ◽  
The North Atlantic

Two new Haploops species are described from the North Atlantic Ocean: a blind species Haploops faroensis spec. nov. and Haploops truncata spec. nov. with a single pair of corneal lenses. In addition, Haploops vallifera Stephensen 1925 and Haploops similis Stephensen 1925, are re-described and the status of Haploops spinosa Shoemaker 1931, is re-established as a valid species. A table is given of the 75 morphological characters of the studied species.  

Exploitation and conservation of Harp and Hood Seals

Polar Record ◽  
1965 ◽  
Vol 12 (80) ◽  
pp. 541-551 ◽  
Author(s):  
D. E. Sergeant
Keyword(s):  
North Atlantic ◽  
The North ◽  
Pagophilus Groenlandicus ◽  
The North Atlantic

Great improvements have taken place in the last few years in the dressing of hair seal pelts for furs and the market for these furs has diversified and expanded. Consequently, the catching of hair seals of all species has intensified and the stocks of Harp Seals (Pagophilus groenlandicus)and Hood Seals (Cystophora cristata) of the North Atlantic, particularly, are under heavy pressure

Navigational Aspects of Turboprop Operation on the North Atlantic

1957 ◽  
Vol 10 (1) ◽  
pp. 31-49
Author(s):  
J. E. D. Williams
Keyword(s):  
Sixteenth Century ◽  
Long Range ◽  
North Atlantic ◽  
Fuel Load ◽  
The North ◽  
The Status ◽  
The North Atlantic ◽  
Aircraft Type

If navigation were confined to the function of keeping a craft on a desired track, and estimating its progress periodically, then a long-range turboprop would present no features of navigational interest. Navigation, however, is supposed to encompass a wider field than this. In a famous sixteenth-century definition, ‘Navigation demonstrateth how, by the shortest good way, by the aptest direction, and in the shortest time, a sufficient ship between any two places may be conducted’. The economic realities of modern airliner operation give a new emphasis to those phrases ‘By the shortest good way, by the aptest direction, and in the shortest time’. A Britannia 310, for example, which will be the first, probably the cheapest, and possibly the smallest, long-range turbineengined airliner, costs about £1 million and is capable of producing a gross revenue of £1000 per hour. The sum of payload and fuel load is limited in most long-range cases by maximum take-off weight, and the fuel for one hour of flight is equivalent in weight to about 2 5 passengers and their baggage. It is not surprising in the circumstances that quite minor refinements of navigational technique are worth tens of thousands of pounds per aircraft per year, while major improvements can alter the status of an aircraft type as an instrument of transport. Such aircraft should be considered as acutely sensitive instruments to be operated precisely according to scientifically designed techniques.

scholarly journals The Palaeoproterozoic Nagssugtoqidian orogen in West Greenland: current status of work by the Danish Lithosphere Centre

1996 ◽  
Vol 172 ◽  
pp. 88-94
Author(s):  
J Van Gool ◽  
M Marker ◽  
F Mengel ◽  
Field party
Keyword(s):  
North Atlantic ◽  
Field Work ◽  
Current Status ◽  
Early Proterozoic ◽  
West Greenland ◽  
Northern Margin ◽  
Work Related ◽  
The North ◽  
West Greenland Current ◽  
The North Atlantic

The Danish Lithosphere Centre (DLC) has now completed its second season of field work in the Nagssugtoqidian orogen of West Greenland. The work is aimed at studying the orogenic evolution of the Nagssugtoqidian orogen and comparisons with other Early Proterozoic orogens on the northern margin of the North Atlantic Archaean craton (see Larsen, this report). This paper presents the preliminary results from the field work and the current status of laboratory work related to this project.

Part III Headquarters Agreements, 37 NATO International Military Headquarters

2018 ◽  
Author(s):  
Muñoz-Mosquera Andrés ◽  
Hartov Mette Prassé
Keyword(s):  
North Atlantic ◽  
Detailed Account ◽  
Military Operations ◽  
The North ◽  
The Status ◽  
The North Atlantic ◽  
Set Up

This Chapter describes the background and role of the Paris Protocol on the Status of International Military Headquarters set up pursuant to the North Atlantic Treaty and its supplementing agreements. It gives a detailed account of its application and continuing importance for military operations of the Alliance.

Part II Commentaries to Typical Sofa Rules, 6 General Overview

2018 ◽  
Author(s):  
Fleck Dieter
Keyword(s):  
International Organizations ◽  
North Atlantic ◽  
Practical Experience ◽  
Peace Operations ◽  
Military Cooperation ◽  
General Overview ◽  
The North ◽  
The Status ◽  
The North Atlantic ◽  
Similarities And Differences

This chapter provides an overview of the relevant issues of the UN Model SOFA and the NATO SOFA. Remarks on peace operations mainly focus on those conducted or authorized by the UN. They may, however, become relevant for peace operations conducted by other international organizations as well. Likewise, rules and provisions of the NATO SOFA may offer some food for thought when regulating military cooperation outside the North Atlantic Alliance. Hence, specific requirements notwithstanding, the chapter offers some legal considerations which may be helpful in other cases as well. It addresses these in context, thus explaining similarities and differences on the status of foreign Visiting Forces (jus in praesentia) from both practical experience and theoretical viewpoints.

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