The macrobenthic infauna off Sellafield (north-eastern irish sea) with special reference to bioturbation

Between 1983 and 1989,66 stations in the north-eastern Irish Sea offshore from Sellafield, Cumbria, were sampled by Reineck box corer to assess the abundance and distribution of the benthic macro-infauna. A total of 40 taxa was identified, of which the predominant group was polychaetes. Cluster analysis of the abundance data showed a division into three station clusters. Simple discriminant analysis showed that the three clusters were correlated (P<0.01) with sand, silty sand and sandy silt sediments. However, the three station groups did not show any clear pattern of characterizing taxa with sediment classification. The bioturbating potential of each taxon is reviewed. A method of weighting abundance data by a factor representing an estimate of individual taxon bioturbating potential is also suggested. This technique is illustrated and discussed by using the weighted data in a further cluster analysis to identify probable areas of high inf aunal bioturbation off Sellafield.

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The caledonian history of the north-eastern Irish Sea region

Scottish Journal of Geology ◽

10.1144/sjg04040375 ◽

1968 ◽

Vol 4 (4) ◽

pp. 375-385 ◽

Cited By ~ 6

Author(s):

D. G. Helm ◽

B.' Roberts ◽

A. J. Wadge ◽

I. C. Burgess ◽

N. J. Soper ◽

...

Keyword(s):

Irish Sea ◽

The North ◽

North Eastern ◽

History Of

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Occurrence of plutonium and americium in plaice from the north–eastern Irish Sea

Nature ◽

10.1038/262814a0 ◽

1976 ◽

Vol 262 (5571) ◽

pp. 814-816 ◽

Cited By ~ 19

Author(s):

R. J. PENTREATH ◽

M. B. LOVETT

Keyword(s):

Irish Sea ◽

The North ◽

North Eastern

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Evaluation of some effectiveness elements of the pig breeding industry in Bulgaria, through cluster analysis

Biotechnology in Animal Husbandry ◽

10.2298/bah1901025z ◽

2019 ◽

Vol 35 (1) ◽

pp. 25-33

Author(s):

Ivelina Zapryanova

Keyword(s):

Cluster Analysis ◽

Central Region ◽

Western Region ◽

North Central Region ◽

North Central ◽

The North ◽

South Central ◽

North Eastern ◽

Central Regions ◽

North Western

An evaluation was made of the effectiveness elements of the pig breeding industry in Bulgaria in the period 2001-2016, through cluster analysis. The studied period was divided in 3 subperiods, each one with three similar groups (clusters). Through application of cluster analysis, the proximity of the different administration regions in the country was defined in accordance with certain indicators of the pig breeding effectiveness. It was found that in the first cluster for the period 2001-2006 fall North-Western and South-Western region. The North-Eastern and North-Central region form the second cluster. The South-Eastern and South-Central region fall mainly into the third cluster. In the first cluster for the period 2007-2011, the North-Western, South-Western and South-Central regions have a priority with the lowest number of sold animals. The North-Eastern and the North-Central region, forming a third cluster, remain with the highest effectiveness of the pig farming. After the end of 2013 an aggregation of the sector began. For the period 2012-2016, the second cluster is formed from three regions - North-Western, South-Western, and South-Central in 2013.

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Gravity measurements in the north-eastern part of the Irish Sea

Quarterly Journal of the Geological Society ◽

10.1144/gsjgs.120.1.0369 ◽

1964 ◽

Vol 120 (1-4) ◽

pp. 369-394 ◽

Cited By ~ 36

Author(s):

M. H. P. BOTT

Keyword(s):

Irish Sea ◽

The North ◽

North Eastern ◽

Gravity Measurements ◽

The Irish Sea ◽

North Eastern Part

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The first record of the short-beaked garfish Belone svetovidovi (Belonidae) in british waters

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315400037875 ◽

1992 ◽

Vol 72 (2) ◽

pp. 507-508 ◽

Cited By ~ 1

Author(s):

Silja E. Swaby ◽

Geoffrey W. Potts ◽

Alwyne Wheeler

Keyword(s):

Atlantic Coast ◽

First Record ◽

The North ◽

Marine Biological Association ◽

Northern European ◽

North Eastern ◽

The North Sea ◽

Eastern North Atlantic ◽

Abundance And Distribution ◽

Belone Belone

The capture of the short-beaked garfish,Belone svetovidovi Collette & Parin 1970, off the Cornish coast is of particular interest in that it represents an easterly extension to the known range of this species in the eastern North Atlantic, and the first record in British waters.In August 1990 seven garfish were angled, on mackerel bait, in Mount's Bay, Cornwall. The captor, Mr A.C. Cass, believing the garfish to be different from the common garfish,Belone belone (L.), sent the largest one to the laboratory of the Marine Biological Association for identification. The specimen was provisionally identified as the short-beaked garfish B. svetovidovi and later verified by one of us (A.W.). The other six specimens were not available for examination.Garfish, sometimes called needlefishes, have elongated bodies. Both upper and lower jaws are long and beak-like, with sharp teeth. They are epipelagic, feeding near the surface and are often observed leaping and skittering over the surface of the water. Only two species are recorded in the genus Belone in the north-eastern Atlantic.Belone belone (including subspecies) is commonly found off the European Atlantic coast as far north as Trondheim, Norway. It is also found in the North Sea, the southern Baltic seas, the Mediterranean and Black Sea where it is commercially exploited (Collette & Parin, 1986).Belone svetovidovi has only recently been distinguished from B. belone, and consequently its abundance and distribution are less well known. It was first identified in northern European waters by Dorman (1984,1987) from southern Ireland.

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Fluxes of Cu, Pb and Mn to the north-eastern Irish Sea: The importance of sedimental and atmospheric inputs

Marine Pollution Bulletin ◽

10.1016/s0025-326x(98)00199-4 ◽

1998 ◽

Vol 36 (5) ◽

pp. 366-375 ◽

Cited By ~ 22

Author(s):

M.R Williams ◽

G.E Millward ◽

M Nimmo ◽

G Fones

Keyword(s):

Irish Sea ◽

The North ◽

North Eastern ◽

Atmospheric Inputs

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The distribution of hydrocarbons and metals in the north-eastern Irish Sea prior to development of the Morecambe Bay gas field

Oil and Chemical Pollution ◽

10.1016/s0269-8579(89)80017-6 ◽

1989 ◽

Vol 5 (4) ◽

pp. 285-320 ◽

Cited By ~ 9

Author(s):

R.J. Law ◽

T.W. Fileman ◽

Catherine F. Fileman ◽

D.S. Limpenny

Keyword(s):

Irish Sea ◽

Gas Field ◽

The North ◽

North Eastern

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The distribution, relative abundance and diversity of echinoderms in the eastern English Channel, Bristol Channel, and Irish Sea

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315499001642 ◽

2000 ◽

Vol 80 (1) ◽

pp. 127-138 ◽

Cited By ~ 24

Author(s):

J.R. Ellis ◽

S.I. Rogers

Keyword(s):

Relative Abundance ◽

Irish Sea ◽

Beam Trawl ◽

English Channel ◽

Asterias Rubens ◽

The North ◽

Psammechinus Miliaris ◽

North Eastern ◽

Abundance And Diversity ◽

Trawl Catches

The distribution and relative abundance of macroepibenthic echinoderms in the eastern English Channel and Irish Sea is described from beam trawl catches. Echinoderms accounted for approximately 29% (by biomass) of fauna captured. A total of 24 species were recorded, including 12 species of starfish. The most frequently encountered species were Asterias rubens and Psammechinus miliaris, which were recorded at 85.5% and 56.0% of stations respectively. Asterias rubens and Ophiothrix fragilis accounted for 63.7% and 25.5% (by biomass) respectively of the echinoderms sampled. Mean echinoderm catches ranged from 0.8-kg h−1 in the north-eastern English Channel to 329-kg h−1 in the south-eastern Irish Sea. The echinoderm fauna was more diverse in the St George's Channel and western Irish Sea (6.7–7.0 species haul−1) than in the north-eastern English Channel (1.9 species haul−1).

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