Good neighbours shaped by vigorous currents: Cold-water coral mounds and contourites in the North Atlantic

Abstract It is demonstrated that current level models, both with and without assimilation, generate too shallow an overturning in the North Atlantic (just like their predecessors) because they do not reproduce the descent of plumes of cold water from the Greenland and Norwegian Seas. Consequently, the prediction of decadal change from one such model reported by C. Wunsch and P. Heimbach is queried.

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Temperature and the recruitment of Atlantic cod (Gadus morhua)

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f99-114 ◽

1999 ◽

Vol 56 (11) ◽

pp. 2069-2077 ◽

Cited By ~ 177

Author(s):

B Planque ◽

T Frédou

Keyword(s):

North Atlantic ◽

Gadus Morhua ◽

Cold Water ◽

Atlantic Cod ◽

The Other ◽

Warm Water ◽

The North ◽

The North Atlantic ◽

Interannual Fluctuations ◽

The Relationship

Variability in the recruitment of fish has been attributed to either changes in the environment or variations in the size of reproductive stocks. Disentangling the effects of environment and stock has proven to be problematic and has resulted in recurrent controversy between studies supporting either hypothesis. In the present study, we examine the relationship between interannual changes in temperature and variation in recruitment for nine Atlantic cod (Gadus morhua) stocks in the North Atlantic. We show that for individual stocks, the relationship often appears weak and statistically not significant. On the other hand, by combining in a single metaanalysis the results from individual stocks, we demonstrate that recruitment of Atlantic cod is linked to interannual fluctuations in temperature in such a way that for stocks located in warm water the relationship is negative, for stocks located in cold water the relationship is positive, and there is no relationship for stocks located in the middle of the temperature range.

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Notes on the Copepoda of the North Atlantic Sea and the Faröe Channel

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315400072805 ◽

1904 ◽

Vol 7 (1) ◽

pp. 110-146 ◽

Cited By ~ 20

Author(s):

R. Norris Wolfenden

Keyword(s):

North Atlantic ◽

Cold Water ◽

Water Area ◽

The North ◽

The North Atlantic

In a previous notice in this Journal, voL vi, p. 344, January, 1902, a brief description of the plan of work undertaken by the writer was given. This comprised cruises across the cold-water area of the laroe Channel during 1900, 1901, and 1902, during the course of which tow-nettings were made at each station with Garstang's net, or Fowler's net, down to 500 to 600 fathoms, simultaneously with hydrographical observations (temperature, collection of water, etc.), which have already been partly reported upon by Mr. H. N. Dickson (GeograpMcal Journal, April, 1903).

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Comparative biogeography: innovations and the rise to dominance of the North Pacific biota

Proceedings of The Royal Society B Biological Sciences ◽

10.1098/rspb.2018.2027 ◽

2018 ◽

Vol 285 (1891) ◽

pp. 20182027 ◽

Cited By ~ 2

Author(s):

Geerat J. Vermeij

Keyword(s):

North Atlantic ◽

Resource Availability ◽

North Pacific ◽

Cold Water ◽

Performance Standards ◽

Water Source ◽

The North ◽

The North Atlantic ◽

Latest Eocene ◽

The North Pacific

The North Pacific is the largest cold-water source of lineages spreading to other modern marine temperate biotas. How this status was achieved remains unclear. One hypothesis is that functional innovations of large effect, defined as departures from the norm in temperate clades and which confer competitive or defensive benefits, increase resource availability, and raise performance standards in the biota as a whole, evolved earlier and more frequently in the North Pacific than elsewhere in the temperate zone. In support of this hypothesis, phylogenetic and fossil evidence reveals 47 temperate marine innovations beginning in the latest Eocene, of which half arose in the North Pacific. Of the 22 innovations of large effect, 13 (39%) evolved in the North Pacific, including basal growth in kelps and bottom-feeding herbivory and durophagy in mammals. Temperate innovations in the Southern Hemisphere and the North Atlantic appeared later and were less consequential. Most other innovations arose in refuges where the risks of predation and competition are low. Among temperate marine biotas, the North Pacific has the highest incidence of unique innovations and the earliest origins of major breakthroughs, five of which spread elsewhere.

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Association between the squat lobsterGastroptychus formosusand cold-water corals in the North Atlantic

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315410000524 ◽

2010 ◽

Vol 90 (7) ◽

pp. 1363-1369 ◽

Cited By ~ 11

Author(s):

E. Le Guilloux ◽

J.M. Hall-Spencer ◽

M.K. Söffker ◽

K. Olu

Keyword(s):

North Atlantic ◽

Deep Sea ◽

Cold Water ◽

Close Association ◽

Habitat Preferences ◽

The North ◽

Pacific Waters ◽

The North Atlantic ◽

Deep Sea Corals ◽

By Catch

Although there are no previous descriptions of the habits of chirostylids in the North Atlantic, it is likely that species in the generaUroptychus,EumunidaandGastroptychushave close ecological ties with deep-sea corals since they have all been recorded in trawl samples containing corals from >200 m depth. We analysedin situdistribution ofGastroptychus formosusand potential hosts using a ROV at a range of north-eastern Atlantic sites and found that this species forms a close association with deep-sea corals that resembles the chirostylid–anthozoan associations reported in shallow Indo-Pacific waters. We update the known distribution forG. formosus, confirming that it is an amphiatlantic species that occurs along the Mid-Atlantic Ridge at least as far south as the Azores and along continental margins from the Canary Islands to Scotland at depths of 600–1700 m. The adults have very specific habitat preferences, being only found on gorgonian and antipatharian corals with a strong preference forLeiopathessp. as a host. This highly restricted habitat preference is likely to render chirostylids vulnerable to the impacts of demersal fishing both directly, as by-catch, and indirectly through habitat loss.

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