Re-establishment of Orchomenella crenata (Crustacea: Amphipoda) as a distinct species, with a first record of its occurrence in the British Isles

2006 ◽  
Vol 86 (6) ◽  
pp. 1389-1399 ◽  
Author(s):  
Niamh M. Kilgallen ◽  
Alan A. Myers ◽  
David McGrath
Keyword(s):  
Distinct Species ◽  
First Record ◽  
Irish Sea ◽  
British Isles ◽  
Morphological Similarity ◽  
The Irish Sea ◽  
First Time

Orchomenella crenata is recorded for the first time from the Irish Sea. Some authors have previously questioned the validity of this taxon due to its morphological similarity with Orchomenella nana and have placed it in the synonymy of O. nana. The question of its validity is resolved by the re-description and comparison of both species.

Stone Circles, Oval Settings and Henges in South-west Wales and Beyond

2003 ◽  
Vol 83 ◽  
pp. 9-45 ◽  
Author(s):  
Timothy Darvill ◽  
Geoffrey Wainwright ◽  
Vanessa Constant ◽  
Yvette Staelens ◽  
Anna Stocks ◽  
...  
Keyword(s):  
Distribution Pattern ◽  
Irish Sea ◽  
British Isles ◽  
South West ◽  
Viewshed Analysis ◽  
Geophysical Surveys ◽  
The Irish Sea ◽  
Multi Phase ◽  
First Time ◽  
Similar Kind

Topographical and geophysical surveys carried out in August 2002 at three monuments in the Preseli Hills of Pembrokeshire are reported: Bedd Arthur, Gors Fawr and Meini Gwyr. Previously unrecorded features were revealed at all three sites, most spectacularly at Meini Gwyr which, from the evidence of geophysical survey, appears to be a multi-phase monument that includes a double pit-circle, hengi-form monument and embanked enclosure with an internal stone circle. Comparisons are made with plans prepared by Flinders Petrie in 1926, published here for the first time. A viewshed analysis of the surveyed sites and others of similar kind in the area allows an appreciation of landscape setting and intervisibility. It is suggested that the stone circles are sited in relation to upland stone sources. All the monuments considered here are compared with contemporary structures recorded elsewhere in the British Isles. It is concluded that while the stone circles and oval setting fit comfortably within a distribution pattern that extends across most of the British Isles, the later phases of Meini Gwyr at least belong to a more localized tradition of monument building focused on the Irish Sea region.

scholarly journals Four-Point Mooring

1973 ◽  
Vol 26 (3) ◽  
pp. 387-390
Author(s):  
K. G. Lees
Keyword(s):  
Continental Shelf ◽  
The Other ◽  
Irish Sea ◽  
Thames Estuary ◽  
Deep Diving ◽  
Sea Bed ◽  
Underwater Television ◽  
The Irish Sea ◽  
First Time ◽  
Compression Chamber

H.M.S. Reclaim was built in 1948 by Simons & Co. of Renfrew as a salvage ship of the King Salvor class but altered before completion for her role as a deep diving vessel. She established world deep diving records in 1948 (536 ft., 163 m.) in Loch Fyne, the diver wearing a standard diving dress and breathing a mixture of oxygen and helium, and in 1956 (600 ft., 183 m.) off Norway. In 1964 she carried out a series of dives to 600 ft. for one hour, off Toulon, the divers wearing lightweight self-contained equipment. In 1950 she located the sunk submarine Truculent in the Thames estuary and in 1964 the submarine Affray, when underwater television was used for the first time. In 1966 she recovered a crashed Viscount aircraft in the Irish Sea. Reclaim is now engaged in trials which will eventually permit diving for prolonged periods to 1000 ft., and therefore anywhere on the Continental Shelf.Two divers are lowered to the sea-bed in a submersible compression chamber equipped with underwater lighting and television and in telephonic communication with the ship. While one diver swims out of the chamber to undertake the required task the other acts as attendant. The chamber when hoisted aboard under pressure is locked on to another chamber in the ship's hold, where the divers carry out the process of decompression which may take several hours.H.M.S. Reclaim encounters some unique navigation and seamanship problems when engaged in deep diving.

Dinoflagellate cyst distribution around the British Isles

1972 ◽  
Vol 52 (4) ◽  
pp. 939-944 ◽  
Author(s):  
Philip C. Reid
Keyword(s):  
Red Tide ◽  
Irish Sea ◽  
Intertidal Sediment ◽  
British Isles ◽  
Present Evidence ◽  
Gonyaulax Polyedra ◽  
Large Numbers ◽  
First Time ◽  
Potential Conditions ◽  
Motile Stage

Rich assemblages of acid-resistant microfossils occur in intertidal sediment from the British Isles and are here reported, for the first time, to contain large numbers of dino-flagellate cysts. These cysts provide evidence to show that the distribution of certain dino-flagellate cysts is different from that of the motile stage, that the coastal distribution of cysts appears to be controlled by currents and that their occurrence within bays is possibly related to localized temperature and salinity conditions. Further, they present evidence that potential conditions for a red tide of Gonyaulax polyedra Stein may be present in the east Irish Sea.

Biochemical polymorphism in bass, Dicentrarchus labrax, in the waters around the British Isles

1992 ◽  
Vol 72 (2) ◽  
pp. 357-364 ◽  
Author(s):  
A.R. Child
Keyword(s):  
Dicentrarchus Labrax ◽  
Irish Sea ◽  
Detailed Knowledge ◽  
British Isles ◽  
Stock Management ◽  
Eastern Atlantic Ocean ◽  
Commercial Species ◽  
The Irish Sea ◽  
Southern Norway ◽  
The Uk

The bass Dicentrarchus labrax is found in the eastern Atlantic Ocean from Morocco (30°N) to southern Norway (60°N) and in the Mediterranean and Black Seas (Whitehead et al., 1986). Throughout its range the bass is an important commercial species and in the waters around the British Isles it is exploited both by commercial fishermen and by sport anglers.Since the early 1970s the recorded landings of bass have increased considerably (Pickett & Pawson, 1991). The increased exploitation and the conflict of interest between sport fishermen and commercial bass fishermen have been the subject of a multitude of articles in the fishing press calling for greater stock management. Detailed knowledge of the stock structure was required to provide advice on the management of the UK bass fishery (Pawson & Pickett, 1987).Prior to 1980, tagging studies were conducted off the southern coast of Ireland (Kennedy & Fitzmaurice, 1972), the south-west of England (Holden & Williams, 1974) and in the Irish Sea (Kelley, 1979).

The genus Porpidia in northern and western Europe, with special emphasis on collections from the British Isles

2005 ◽  
Vol 37 (1) ◽  
pp. 1-35 ◽  
Author(s):  
Alan M. FRYDAY
Keyword(s):  
New Species ◽  
North America ◽  
Secondary Metabolite ◽  
Western Europe ◽  
Distinct Species ◽  
New Combination ◽  
Secondary Metabolite Production ◽  
British Isles ◽  
Metabolite Production ◽  
First Time

Four new species and one new forma are described in the genus Porpidia. Porpidia flavocruenta Fryday & Buschbom, a member of the P. macrocarpa group that has previously been overlooked for ‘P. flavocoerulescens’, is reported from Austria, the British Isles, Scandinavia, Iceland, and North America (Alaska); P. islandica Fryday, Knoph & Hertel is reported from Iceland and Scotland; and P. pachythallina Fryday and P. striata Fryday from the British Isles only. The sorediate morph of P. superba is described as P. superba f. sorediata Fryday, known from the British Isles, Sweden, Svalbard, and North America (Maine). Variation in P. macrocarpa is discussed and the new combination P. macrocarpa f. nigrocruenta (Anzi) Fryday made. Secondary metabolite production is discussed and the variation in the production of chemosyndromes considered to be more variable than previously reported. The position of several other taxa is discussed and P. herteliana and P. musiva are reduced to synonymy with P. cinereoatra, P. calcarea to synonymy with P. superba, and P. diversa to synonymy with P. contraponenda. However, P. grisea and P. lowiana are provisionally maintained as distinct species from P. tuberculosa and P. cinereoatra respectively, although P. grisea has not been correctly recorded from the British Isles. The typification of Spiloma tuberculosa Sm., the basionym of Porpidia tuberculosa, is discussed and a lectotype proposed; the new combination Porpidia rugosa (Taylor) Coppins & Fryday is made and shown to be the correct name for P. glaucophaea; and Porpidia flavicunda (Ach.) Gowan is used for the esorediate taxon usually known as Porpidia flavocoerulescens because this epithet is to be proposed for rejection as it is considered to be of confused usage. Porpidia hydrophila is shown to be a member of the P. albocaerulescens group. Porpidia lowiana, P. nadvornikiana, and P. thomsonii are recorded for the first time from the British Isles, and P. macrocarpa f. nigrocruenta confirmed as a British taxon. Notes and a key are provided for all the species of the genus that have been reported from the area.

scholarly journals Signature of cryptic sedimentary basin inversion revealed by shale compaction data in the Irish Sea, western British Isles

Tectonics ◽  
2009 ◽  
Vol 28 (4) ◽  
pp. n/a-n/a ◽  
Author(s):  
Simon P. Holford ◽  
Jonathan P. Turner ◽  
Paul F. Green ◽  
Richard R. Hillis
Keyword(s):  
Sedimentary Basin ◽  
Irish Sea ◽  
British Isles ◽  
Basin Inversion ◽  
The Irish Sea

The prevalence of Hematodinium in Nephrops norvegicus from the western Irish Sea

2002 ◽  
Vol 82 (3) ◽  
pp. 427-433 ◽  
Author(s):  
R.P. Briggs ◽  
M. McAliskey
Keyword(s):  
Swimming Performance ◽  
Irish Sea ◽  
Published Data ◽  
Infection Prevalence ◽  
Nephrops Norvegicus ◽  
Seawater Salinity ◽  
High Infection ◽  
The Irish Sea ◽  
Seasonal Infection ◽  
First Time

Infection of Nephrops norvegicus by a dinoflagellate parasite belonging to the genus Hematodinium, is reported in populations of Nephrops from the Irish Sea. Diseased animals are recognized by an opaque vivid body colour and high densities of parasites in the haemolymph. Infection causes a general morbidity of the host along with a reduction in swimming performance, which eventually leads to the death of the host lobster. Research vessel cruises performed over the period 1994–2001 have shown Hematodinium to occur in populations of Nephrops from the Irish Sea throughout this period. High infection prevalence during the month of April and negligible levels during October agree with published data on seasonal infection levels in Scottish Nephrops stocks. Data on spatial and temporal infection prevalence are presented for the first time for the Irish Sea and show variation between stations and between years. Mean infection prevalence peaked at 18% of captured Nephrops during April 1996 and was followed by a downward trend to 2001. Infection predominates in small Nephrops (<30 mm carapace length) and in females is normally associated with immature animals. Although a positive correlation with seawater salinity was noted, preliminary analysis did not show a relationship between prevalence and other environmental factors.

The Irish case

2018 ◽  
pp. 207-224
Author(s):  
Eric Richards
Keyword(s):  
Population Growth ◽  
International Migration ◽  
Irish Sea ◽  
Growing Up ◽  
British Isles ◽  
Irish Population ◽  
Economic Expansion ◽  
Great Famine ◽  
Irish Case ◽  
The Irish Sea

This chapter deals with Ireland’s place in the more generic context of the origins of migration from the British Isles. The first crescendo of mass international migration came in the mid-1840s and was disproportionately Irish. Population growth, famine and emigration in the Irish case are commonly regarded as tied together inextricably. The spread of the potato facilitated economic expansion which included ‘a huge movement of population from east to west with new communities growing up in previously little populated areas’. The potato failure in 1846 produced catastrophic levels of mortality and then massive migration. The evacuation of rural Ireland eventually issued forth into a flood of emigrants across the Irish Sea and across the Atlantic. Whatever the ideological assumptions, the readjustment of agriculture in Ireland, especially in the decades of the Great Famine, was radical and ruthless.

scholarly journals Tachydromia calcarata (Strobl) (Diptera: Hybotidae) new to Britain, with redescription of both sexes, and its correct classification within the T. interrupta group of species

2006 ◽  
Vol 17 (1) ◽  
pp. 8-12
Author(s):  
Milan Chvála ◽  
Stephen Hewitt
Keyword(s):  
First Record ◽  
Alpine Region ◽  
Correct Classification ◽  
British Isles ◽  
First Time

First record of Tachydromia calcarata (Strobl) (Diptera: Hybotidae) from the British Isles, and outside the Continental Alpine region, is reported here. Both sexes are redescribed, female for the first time, and the species re-classified within the predominantly mountain T. interrupta group (formerly assigned as a member of the T. connexa group).

A record of parasitic worms from fishes in rock pools at Aberystwyth

Parasitology ◽  
1945 ◽  
Vol 36 (3-4) ◽  
pp. 165-167 ◽  
Author(s):  
Gwendolen Rees
Keyword(s):  
Marine Fishes ◽  
The Other ◽  
Irish Sea ◽  
Rock Pools ◽  
British Isles ◽  
The Irish Sea ◽  
Parasitic Worms

Various records have, from time to time, been made of parasitic worms from marine fishes around the British Isles. Nicoll (1915) has compiled a very valuable list of the Trematoda, which class has received more attention than have the other parasitic worms of fishes. They have been recorded from Scottish waters by T. Scott (1901), from the Irish Sea by A. Scott (1904), from the Northumberland coast by Lebour (1908) and from Ireland by Bellingham in 1844 and Southern in 1912. The Cestoda have received less attention. Woodland (1927) has recorded some species from Plymouth, and a record of the trematode and cestode parasites of fishes from the Porcupine Bank, Irish Atlantic Slope, and Irish Sea has been made by Rees & Llewellyn (1941). The records of Nematoda and Acanthocephala are very scanty. Baylis & Jones (1933) include them together with trematodes and cestodes in a list of parasitic worms obtained from marine fishes at Plymouth.

Sign in / Sign up

Export Citation Format

Share Document