Optimizing Maritime Preparedness Under Uncertainty – Locating Tugboats Along the Norwegian Coast

Abstract The Norwegian coast is populated by two cod populations: Northeast Arctic cod and Norwegian Coastal cod. In this paper, we use a further division based on life history: oceanic cod, coastal cod, and fjord cod. A numerical ocean model was implemented for the northern Norwegian coast where all these populations have spawning areas. The model results were used to simulate connectivity and retention of cod eggs from the different subpopulations. The model reproduced the observed variability and mesoscale activity in the Norwegian Coastal Current. Eggs released at an oceanic spawning area were transported northwards along the coastline. Coastal cod eggs had intermediate connectivity with each other and fjord cod eggs had high local retention. Although the high retention of eggs in fjord areas is mainly caused by a subsurface distribution of eggs, the intermediate retention of eggs from coastal spawning areas is caused by small-scale eddies in-between many small islands. The high-resolution ocean model made it possible to reveal these specific dispersal patterns. The high retention of early life stages in fjords combined with strong homing to spawning areas indicates that fjord subpopulations may be described as a metapopulation.

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Notes on the Didemnidae (Ascidiacea): I. The presence of Didemnum (Leptoclinides) faeröense (Bjerkan) in the Plymouth area

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s002531540000343x ◽

1954 ◽

Vol 33 (1) ◽

pp. 21-25 ◽

Cited By ~ 4

Author(s):

D. B. Carlisle ◽

A. I. Carlisle

Keyword(s):

Atlantic Ocean ◽

North American ◽

Spring Tide ◽

Boreal Species ◽

Norwegian Coast ◽

The North ◽

Sublittoral Zone

Leptoclinides faeröensis Bjerkan (1905) is a little-known boreal species which has been found only in the Atlantic Ocean (Fig. I). The most northerly record is from a little south of Spitzbergen, the most southerly from 37° 08' N., off the North American coast. It occurs on the coast of Norway and in the Faeroe Islands, but it has not been reported nearer to Plymouth than these two localities. Most records are from deepish waters, though it occurs in the sublittoral zone along the Norwegian coast. It was in this zone, at Looe Island (50' 20' 24“ N., 4 °26' 53” W.) near Plymouth, that we found a specimen of this species growing on a rock about 80 cm. below O.D.—just sufficiently low for it to remain covered by a few centimetres of water at the lowest tide of the year, the equinoctial spring tide.

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New species of Scolelepis (Polychaeta, Spionidae) from the Norwegian coast and Barents Sea with a brief review of the genus

Fauna norvegica ◽

10.5324/fn.v35i0.1666 ◽

2015 ◽

Vol 35 ◽

pp. 9 ◽

Cited By ~ 2

Author(s):

Andrey Sikorski ◽

Lyudmila Pavlova

Keyword(s):

New Species ◽

Kola Peninsula ◽

Climate Warming ◽

Barents Sea ◽

Identification Key ◽

The Arctic ◽

Atlantic Sector ◽

Norwegian Coast ◽

The Barents Sea

The species Scolelepis finmarchicus sp. nov. is described from the Norwegian and Barents Seas along the northern Norwegian coast and Kola peninsula. The occurrence of this species in the Kola Bay could be seen as a sign of climate warming in the area. Taxonomic issues existing in the genus Scolelepis within the area along the Norwegian coast and in the Barents Sea are briefly touched upon. Seven species belonging to Scolelepis have recently been recorded from the Atlantic sector of the Arctic. Scolelepis (S.) matsugae Sikorski, 1994 is newly synonymized with S. (S.) laonicola (Tzetlin, 1985). This article provides a brief review of Scolelepis together with an identification key for the genus from the Atlantic sector of the Arctic

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Development of a qPCR assay to detect and quantify ichthyotoxic flagellates along the Norwegian coast, and the first Norwegian record of Fibrocapsa japonica (Raphidophyceae)

Harmful Algae ◽

10.1016/j.hal.2018.04.007 ◽

2018 ◽

Vol 75 ◽

pp. 105-117 ◽

Cited By ~ 7

Author(s):

Anette Engesmo ◽

David Strand ◽

Sandra Gran-Stadniczeñko ◽

Bente Edvardsen ◽

Linda K. Medlin ◽

...

Keyword(s):

Qpcr Assay ◽

Norwegian Coast ◽

Fibrocapsa Japonica

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Preventing environmental disasters from grounding accidents: A case study of tugboat positioning along the Norwegian coast

Journal of the Operational Research Society ◽

10.1080/01605682.2017.1409157 ◽

2018 ◽

Vol 69 (11) ◽

pp. 1773-1792

Author(s):

Brice Assimizele ◽

Johannes O. Royset ◽

Robin T. Bye ◽

Johan Oppen

Keyword(s):

Norwegian Coast ◽

Environmental Disasters

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A survey of the microseisms recorded at Aberdeen in 1955, together with a review of the meteorological conditions under which they may have arisen

Bulletin of the Seismological Society of America ◽

10.1785/bssa0480010065 ◽

1958 ◽

Vol 48 (1) ◽

pp. 65-76

Author(s):

A. E. M. Geddes

Keyword(s):

Fast Moving ◽

Rayleigh Waves ◽

Standing Waves ◽

Meteorological Conditions ◽

Love Waves ◽

Norwegian Coast ◽

Pressure Distributions ◽

Moving Storm ◽

Set Up ◽

Rocky Coast

Abstract As observations of microseisms at Aberdeen appeared to indicate that microseisms may arise from a cause or causes other than from standing waves set up by reflection from a steep rocky coast or by a mixture of waves in a fast-moving storm, a survey of Aberdeen records for 1955 has been carried out and a comparison made with the meteorological conditions prevailing at the time. A noticeable feature on the weather charts was the frequent occurrence of pressure distributions with two centres, while the occasions on which fast-moving storms occurred, or reflection from rocky coasts, were rare. Consequently there seemed to be grounds for supposing that the standing waves arose from the interference of two sets of wave systems generated by double low-pressure centres. Further, single low centres off either the Norwegian coast or that of America produced very little effect at Aberdeen. The survey suggests that the principal regions where such microseisms were produced appeared to be in the Atlantic north of 50° N and off the rocky coast of northwest Scotland. From a comparison of the displacements on the E-W and N-S records there is some support for the hypothesis that microseisms are due to a mixture of Rayleigh waves and Love waves.

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