Movements and breeding of the ornate rock lobster, Panulirus ornatus, in Torres Strait and on the north-east coast of Queensland

1987 ◽  
Vol 38 (2) ◽  
pp. 197 ◽  
Author(s):  
RS Bell ◽  
PW Channells ◽  
JW MacFarlane ◽  
R Moore ◽  
BF Phillips
Keyword(s):  
East Coast ◽  
Rock Lobster ◽  
The South ◽  
Breeding Stock ◽  
Biological Question ◽  
North East ◽  
The North ◽  
Breeding Grounds ◽  
Torres Strait ◽  
Papua New Guinean

The principal biological question examined by the investigation was whether the resource of P. ornatus fished in Papua New Guinean waters was the same as that fished in Australian waters. In all, 11 932 specimens of Panulirus ornatus were tagged in Torres Strait and on the north-east coast of Queensland over a 3-year period from February 1980 to March 1983. By June 1984, 300 tagged P. ornatus had been recaptured. Of the 9632 P. ornatus tagged on the east coast of Queensland, none was recaptured in Torres Strait, while most of the 24 recaptures showing movements occurred to the south of the tagging sites. Of the 2300 P. ornatus tagged in Torres Strait, 8 were recaptured at sites to the north-east of the tagging sites in September and October 1980, coincident with the annual breeding emigration of P. ornatus from reefs in Papua New Guinean waters in northern Torres Strait, across the Gulf of Papua to breeding grounds near Yule Island. Results of this tagging study showed that P. ornatus from western Torres Strait also emigrate into Papuan New Guinean waters, where they are fished by both Australian and Papua New Guinean fishermen. However, recapture data also indicated that the population of P. ornatus in south-east Torres Strait and on the east coast of Queensland does not take part in this breeding emigration and may be a separate resource. During the study, 39 berried female P. ornatus were found on the north-east coast of Queensland but none in Torres Strait. The breeding stock near Yule Island may be the source of recruitment to both the Torres Strait and north-east coastal Queensland fisheries.

II.—Further Notes on the Petrography of South Georgia

1916 ◽  
Vol 3 (10) ◽  
pp. 435-441 ◽  
Author(s):  
G. W. Tyrrell
Keyword(s):  
East Coast ◽  
The South ◽  
South Georgia ◽  
South Eastern ◽  
North East ◽  
The North ◽  
New Material ◽  
Rock Specimens

The new material on which this paper is based has lately been received through Mr. D. Ferguson, who recently investigated the geology of the island, and collected the rocks described in an earlier paper. It consists of twenty-seven rock specimens from the south-eastern end of the island, between Cape Disappointment and Cooper Island, and nine specimens from Gold Harbour on the north-east coast between Cooper Island and Royal Bay. All these were collected by the staff of the South Georgia Co., Ltd., under the instructions of Mr. Th. E. Salvesen, managing director, of Leith.

GEOPHYSICAL EXPLORATION IN TORRES STRAIT

1965 ◽  
Vol 5 (1) ◽  
pp. 188
Author(s):  
E. W. Vind ◽  
C. R. Harwood
Keyword(s):  
Seismic Survey ◽  
Survey Area ◽  
The South ◽  
North East ◽  
The North ◽  
Geophysical Surveys ◽  
Arafura Sea ◽  
Cape York ◽  
Torres Strait ◽  
Marine Seismic

Torres Strait is the narrow waterway on the Continental Shelf which connects the Arafura Sea to the Coral Sea and separates the Cape York Peninsula from South-western Papua. Within Torres Strait and the Arafura Sea the marine seismic survey area specifically discussed here covers the north-western part of Authority to Prospect 104P held by Marathon Petroleum Australia Ltd. Except for a few small islands this area is covered by a shallow tropical sea not more than 160 feet deep which is studded with coral reefs.Four regional structural features influence the area. These are the Cape York-Oriomo Ridge to the east, the Carpentaria Basin to the south and the Morehead and Papuan Basins to the north. These features are indicated by regional geology and have been confirmed by the combined interpretations of reconnaissance geophysical surveys conducted by various exploration organisations during the past 30 years.The A.T.P. 104P (West) Marine Seismic Survey, consisting of 618 miles of subsurface coverage, was carried out for Marathon between November 8 and November 28, 1964.Several operational problems prevented completion of the survey as originally planned. Shallow water and reefing prevented shooting in the north-east portion of the proposed area.Shooting 300 per cent subsurface coverage commenced in the south-eastern part of the survey area, but, due to shallow basement at less than one second, multiple coverage was not feasible. Production shooting which gave 100 per cent subsurface coverage on the short spreads was continued throughout the remainder of the survey.Two reflection horizons and a resultant isochron were mapped in the area. A "deep" reflector is interpreted as originating from granitic basement, while a "shallow" reflector is tentatively correlated with a horizon in the Cretaceous section.The "shallow" horizon mapped is essentially conformable with the "deep" horizon. Both show a regional west dip with thinning of section to the east. Some north and south components of the regional west dip are established. The resultant isochron comparisons based on this work appear too limited in scope to establish any definite local structural control of deposition.

Underwater reconnaissance off the island of Chios, 1954

1961 ◽  
Vol 56 ◽  
pp. 102-113 ◽  
Author(s):  
Richard Garnett ◽  
John Boardman
Keyword(s):  
East Coast ◽  
Active Part ◽  
The South ◽  
Expensive Equipment ◽  
North East ◽  
The North ◽  
British School

In June and July of 1954 a team often divers spent just over four weeks exploring the east coast of Chios. The team was based on Emporio in the south-east, where the British School was excavating under the direction of M. S. F. Hood and J. Boardman, and was thus able to rely on the archaeologists there for expert guidance. Most of the underwater work took place in this area, but the team was also able to spend some time exploring the north-east coasts of the island, thanks to Mr. Tom Dupree, who put his yacht Kerynia at their disposal.The main diving equipment consisted of three twin-cylinder aqualungs with three spare twin-cylinder air-tanks, and a compressor to recharge them with air, belonging to the British School at Athens. The purchase of this expensive equipment had been made possible by the great generosity of Lord Kelmsley and the Sunday Times newspaper. Miss Dilys Powell, as representative of the Sunday Times, joined the expedition for two weeks and took an active part in the work.

Torres Strait and the Inner Route

1977 ◽  
Vol 30 (1) ◽  
pp. 21-27
Author(s):  
J. H. S. Osborn
Keyword(s):  
Coral Reef ◽  
Great Barrier Reef ◽  
East Coast ◽  
Barrier Reef ◽  
Outer Limit ◽  
North East ◽  
The North ◽  
Torres Strait ◽  
Alternative Routes ◽  
Coral Reef System

The north-east coast of Australia is fronted by the world's longest coral reef system, which stretches in a north/south direction between latitudes 9° and 24° South. Although its outer limit is at distances of between 20 and 120 miles from the coast the enclosed waters are relatively shallow and contain many islands, detached reefs and shoals. The shipping lane between the coast and the Great Barrier Reef is known as the Inner Route. Torres Strait, its northern entrance, although extensive is shallow throughout and encumbered by reefs and islands to such an extent that only one route through it has been lit. The alternative routes are shallow or tortuous.

scholarly journals An investigation of the igneous rocks on Hareøen and western Nûgssuaq, West Greenland

1971 ◽  
Vol 35 ◽  
pp. 11-13
Author(s):  
N Hald
Keyword(s):  
East Coast ◽  
Geological Mapping ◽  
Igneous Rocks ◽  
South Coast ◽  
The South ◽  
West Greenland ◽  
North West ◽  
North East ◽  
The North ◽  
Basaltic Lavas

Hareøen is an island north-west of Disko in western Greenland. It has the form of a plateau, whose highest point - 512 metres - is found near the south coast. Like the neighbouring parts of Nugssuaq and Disko, Hareøen consists chiefly of Tertiary basaltic lavas. The island first attracted attention on account of the presence of interbasaltic, coal-bearing sediments on the north-east coast. These were already examined by Giesecke in 1811 (Giesecke, 1910) and later among others by Steenstrup (1874) and B.E. Koch (1959). A petrographie investigation of the basalts was first undertaken by Holmes (1919), who described loose fragments rich in K2O. Lavas from the south coast, colleeted and analysed by Pedersen (1970), also have a high content of potash. V. Miinther in the years 1948-49 untertook geological mapping of the island, on which the present investigation is supported (Miinther, in press).

Some Political and Economic Interactions in Later Victorian England

1949 ◽  
Vol 31 ◽  
pp. 17-28 ◽  
Author(s):  
R. C. K. Ensor
Keyword(s):  
East Coast ◽  
General Election ◽  
The South ◽  
Victorian England ◽  
North East ◽  
The North ◽  
Economic Interactions ◽  
The Government ◽  
City Of London ◽  
The City

In 1870 the Government of the day had behind it the stronger party in the country; and among its followers in Parliament were the two members for the City of London. Pass a quarter of a century, and come to the Government brought into power by the general election of 1895. Exactly the same two things may be said of it; it too had behind it the stronger party in the country; it too numbered among its followers in Parliament the members for the City of London. Only, whereas the Government of 1870 was Liberal, the Government of 1895 was Conservative. That quarter of a century had witnessed the transfer of the City of London's political allegiance from Liberalism to Conservatism; and therein the City's opinions corresponded to those of the business and moneyed classes generally. So it was, not only in the south of England, but also in the Midlands and Lancashire; though not yet at all to the same extent in Yorkshire, the north-east coast, or Scotland.

The Archaean Atâ intrusive complex (Atâ tonalite), north-east Disko Bugt, West Greenland

1999 ◽  
pp. 103-112
Author(s):  
Feiko Kalsbeek ◽  
Lilian Skjernaa
Keyword(s):  
Intrusive Complex ◽  
The South ◽  
Original Series ◽  
Early Proterozoic ◽  
West Greenland ◽  
North East ◽  
The North ◽  
Southern Border ◽  
Area North ◽  
Igneous Layering

NOTE: This article was published in a former series of GEUS Bulletin. Please use the original series name when citing this article, for example: Kalsbeek, F., & Skjernaa, L. (1999). The Archaean Atâ intrusive complex (Atâ tonalite), north-east Disko Bugt, West Greenland. Geology of Greenland Survey Bulletin, 181, 103-112. https://doi.org/10.34194/ggub.v181.5118 _______________ The 2800 Ma Atâ intrusive complex (elsewhere referred to as ‘Atâ granite’ or ‘Atâ tonalite’), which occupies an area of c. 400 km2 in the area north-east of Disko Bugt, was emplaced into grey migmatitic gneisses and supracrustal rocks. At its southern border the Atâ complex is cut by younger granites. The complex is divided by a belt of supracrustal rocks into a western, mainly tonalitic part, and an eastern part consisting mainly of granodiorite and trondhjemite. The ‘eastern complex’ is a classical pluton. It is little deformed in its central part, displaying well-preserved igneous layering and local orbicular textures. Near its intrusive contact with the overlying supracrustal rocks the rocks become foliated, with foliation parallel to the contact. The Atâ intrusive complex has escaped much of the later Archaean and early Proterozoic deformation and metamorphism that characterises the gneisses to the north and to the south; it belongs to the best-preserved Archaean tonalite-trondhjemite-granodiorite intrusions in Greenland.

The Metamorphosed Limestones and Associated Contaminated Igneous Rocks of the Carlingford District, Co. Louth

1932 ◽  
Vol 69 (5) ◽  
pp. 209-233 ◽  
Author(s):  
G. D. Osborne
Keyword(s):  
Igneous Rocks ◽  
The South ◽  
Ordnance Survey ◽  
Igneous Complex ◽  
North East ◽  
The North ◽  
South West ◽  
Carboniferous Limestone ◽  
Contamination Effects

THE Carlingford-Barnave district falls within the boundaries of Sheet 71 of the Ordnance Survey of Ireland, and forms part of a broad promontory lying between Carlingford Lough on the north-east and Dundalk Bay on the south-west. The greater part of this promontory is made up of an igneous complex of Tertiary age which has invaded the Silurian slates and quartzites and the Carboniferous Limestone Series. This complex has not yet been investigated in detail, but for the purposes of the present paper certain references to it are necessary, and these are made below. The prevalence of hybrid-relations and contamination-effects between the basic and acid igneous rocks of the region is a very marked feature, and because of this it has been difficult at times to decide which types have been responsible for the various stages of the metamorphism.

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