Deep-sea sentence example
The existence of sulphuretted hydrogen in great quantities below loo fathoms, the extensive chemical precipitation of calcium carbonate, the stagnant nature of its deep waters, and the absence of deep-sea life are conditions which make it impossible to discuss it along with the physical and biological conditions of the Mediterranean proper.
Thus the occurrence of blind animals in caves and in the deep sea was a fact which Darwin himself regarded as best explained by the atrophy of the organ of vision in successive generations through the absence of light and 1 Weismann, Vererbung, &c. (1886).
The deep-sea fishery attracts hundreds of boats from the north of Scotland, and most of the catch is cured for the English, German and Dutch markets.
Distilling however prospers, and the town is important not only as regards its shipping and the deep-sea fishery, but also as a distributing centre for the islands and the seat of the superior law courts.
The chief industries include coast and deep-sea fisheries, shipbuilding, tanning, the making of cod-liver oil and fish-curing.Advertisement
Deep-sea and coast fishing for cod, herring and mackerel employ over 1000 of the inhabitants.
The deep-sea fishing industry of the town is important, the fishing fleet in 1902 numbering 67 vessels.
The last-named vessel secured 157 trustworthy deep soundings, Deep-sea Soundings.
The earliest deep-sea sounding on record is that of cruise in the North Pacific, sounding out lines for a projected Captain Phipps on the 4th of September 1773 in the Norwegian Pacific cable.
Polar explorers making sections across the great expanses of water with everfrequently repeated those experiments in deep-sea soundings, increasing accuracy, and in that work the government surveying both William Scoresby and Sir John Ross obtaining notable ships have also been engaged, vast stretches of the Indian and results, though not reaching depths of more than 1200 fathoms. Pacific Oceans having been opened up to knowledge by H.M.SS.Advertisement
All deep-sea measurements are subject to uncertainty because the sounding machine merely measures the length of wire which runs out before the lead touches bottom, and this agrees with the depth only when the wire is perpendicular throughout its run.
It is improbable, however, that the smooth and slender wire is much influenced by currents, and the best deep-sea soundings may be taken as accurate to within 5 fathoms.
In spite of the increase of deep-sea soundings in the last few decades, they are still very irregularly distributed in the open ocean, and the attempt to draw isobaths (lines of equal depth) on a chart of the world is burdened with many difficulties which can only be evaded by the widest generalizations.
In the deep sea two types of feature are recognized under the general names of depression and elevation.
The existence of the latter, which extends to the African continent, was announced by Sir Wyville Thomson in 1876 as a result of his discussion of the deep-sea temperature observations of the " Challenger " expedition, though the fact was not confirmed by soundings until many years later.Advertisement
One of the most effective early forms was the snapper or " deep-sea clamm " of Sir John Ross, a pair of powerful spring jaws held apart by an arrangement which when released on striking the bottom allowed the jaws to close, biting out and holding securely a substantial portion of the ground.
The voyage of the " Challenger " supplied for the first time the nucleus of a collection of deep-sea deposits sufficient to serve as the basis for comprehensive classification and mapping.
Renard, whose monograph,' published in 18 9 1, laid the foundations and 1 " Challenger " Reports, " Deep Sea Deposits."
When the proportion of calcium carbonate in the blue mud is considerable there results a calcareous ooze, which when found on the continental slope and in enclosed seas is largely composed of remains of deep-sea corals and bottom-living foraminif era, pelagic organisms including pteropods being less frequently represented.
Globigerina ooze was recognized as an important deposit as soon as the first successful deep-sea soundings had been made in the Atlantic. It was described simultaneously in 1853 by Bailey of West Point and Ehrenberg in Berlih.Advertisement
The second form of deep-sea thermometer is the self-registering maximum and minimum on James Six's principle.
The whole ocean must thus form but a cold dwelling-place for the organisms of the deep sea.
As the Arctic Basin is shut off from the North Atlantic by ridges rising to within 300 fathoms of the surface and from the Pacific by the shallow shelf of the Bering Sea, and as the ice-laden East Greenland and Labrador currents consist of fresh surface water which cannot appreciably influence the underlying mass, the Arctic region has no practical effect upon the bottom temperature of the three great oceans, which is entirely dominated by the influence of the Antarctic. The existence of deep-lying and extensive rises or ridges in high southern latitudes has been indicated by the deep-sea temperature observations of Antarctic expeditions.
The " Challenger " and other oceanographic expeditions have shown that on the bottom of the deep sea concretions of phosphate are now gathering around the dead bodies of fishes lying in the oozes; consequently the formation of the concretions may have been carried on simultaneously with the deposition of the strata in which they occur.
Deep-sea fishing is largely prosecuted all round the coast.Advertisement
The deep-sea and coastal fisheries are important.
Deep-sea weeds as a rule contain more iodine than those which are found in the shallow waters.
Bounties to encourage deep-sea fishing have been given by the federal government since 1882.
Deep-sea forms also occur, but in spite of this the group is essentially pelagic.
Spadella cephaloptera is, however, littoral and oviposits on sea-weed, and the "Valdivia" brought home a deep-sea species.Advertisement
The industries include salmon fishing, deep-sea fishing, the making of rope and twine and the freestone quarries of the neighbourhood.
The fisheries are commonly divided into four particular fishing areas, namely, the " deep-sea " fishery of the North Sea, and the " inner " (binnengaatsch) fisheries of the Wadden, the Zuider Zee, and the South Holland and Zeeland waters.
The deep-sea fishery may be further divided into the so-called " great " or " salt-herring " fishery, mainly carried on from Vlaardingen and Maasluis during the summer and autumn, and the " fresh-herring " fishery, chiefly pursued at Scheveningen, Katwijk and Noordwijk.
The deep-sea fishing in the North Sea, thanks to the exertions of the German fishing league (Deulscher Fischereiverein) and to government support, is extremely active.
Deep-sea fishing is carried on; but the staple trade consists in the export of china clay and minerals, coal being imported.Advertisement
Deep-sea fisheries give employment to some twenty thousand Sicilians, who exercise their calling not only off the coasts of their island, but along the north African shore, from Morocco to Tripoli.
Deep-sea exploration has shown that some species have an immensely extended range, and still more, that species of the same genus, and genera of the same family, though separated by great intervals of space, may be closely allied in character.
The deep-sea fisheries on the south-western coasts are of some importance; the Mumbles, Tenby and Milford Haven being the chief centres of this industry.
Weaving is an industry less important than formerly; mats and baskets are manufactured, and deep-sea fishing is an important industry.
In Britain their chief consumption is in the deep-sea line fishery, where they are held to be the most effective of all baits.Advertisement
Mention should also be made of the partial or complete atrophy of the eyes in many Crustacea which live in darkness, either in the deep sea or in subterranean habitats.
The earliest forms, from the Lower Oolite and later, belonging chiefly to the extinct family Prosoponidae, have been shown to have close relations with the most generalized of existing Brachyura, the deep-sea Homolodromiidae, and to link the Brachyura to the Homarine (lobster-like) Macrura.
This, though once the predominant industry, has been surpassed by the deep-sea fisheries, which derived a great impetus from beam-trawling, introduced in 1882, and steam line fishing in 1889, and threaten to rival if not to eclipse those of Grimsby.
The deep-sea and coast fisheries of Ireland form a valuable national asset, which still admits of much development and improvement despite the fact that a considerable number of acts of parliament have been passed to promote and foster the fishing industry.
For administrative purposes Ireland is divided into 31 deep-sea and coast fisheries and during 1905, 6190 vessels were engaged in these districts, giving employment to a total of 24,288 hands.Advertisement
Some of them will go on lengthy research expeditions or make deep-sea dives.
We have 5 days of allocated science onboard in which to collect cores of deep sea sediments - made up of beautiful fossil diatoms!
Explore the magic of the under water world while becoming a certified deep sea diver.
Even fish could be dangerous for a deep-sea diver.
The only rich source of dietary squalene comes from the liver oils of the deep-sea dogfish.Advertisement
There are also several operators running deep-sea fishing charters.
Fishing; deep sea and shark, and fresh water fly-fishing at local reservoirs, is also available.
Madeira is known for excellent deep-sea fishing, particularly blue marlin.
Below, the following " Discovery Postcards " by Pingree relate to published scientific papers in deep sea oceanography.
The use of a ROV will return British deep-sea oceanography to the premier rank that it established in the past.
For many deep-sea seafarers especially, sitting OU examinations would not be possible without our support.
This indicates that deep-sea sediments constitute a very important source of DON to the world ocean.
Sea Angling Trips on MFV Girl Kilda These are with a deep sea fishing skipper of 20 years experience.
Another section is devoted to the use of radio telegraphy on board deep-sea trawlers.
Two deep-sea wreck divers receive a tip-off from a local fisherman about a site off the New Jersey coast.
Our Tugs are fully equipped for deep sea towage & salvage operation, and have experienced and very proficient Crew.
Many deep-sea trawlers now have active trawl doors that can be adapted remotely whilst on the seabed.
The northern bottlenose whale usually lives in deep-sea canyons in the cold temperate seas of the northern North Atlantic.
Here belong the deep-sea genera Monocaulus and Branchiocerianthus, including the largest hydroid polyps known, both genera producing sessile gonophores.
Great Britain has likewise taken the lead in those deep-sea explorations which reveal to us the configuration of the sea-bottom, and enable us to construct charts of the ocean bed corresponding to the contoured maps of dry land yielded by topographical surveys.
In 1920 the General Steam Navigation Company, the oldest steamship company to run regular deep sea services, joined the group.
This 1965 image shows a deep sea pilot being winched on board a Union Castle steamer.
Able to withstand deep sea diving and poolside lounging, a waterproof mascara is a must have beauty item.
Since the explosion of digital photography most underwater photographers opt to use their everyday "land" cameras to record deep-sea explorations.
Other options include snorkeling through spectacular coral reefs, embarking on a deep-sea fishing expedition or swimming with dolphins.
Adventurous couples can even partake in a camel caravan or try their hand at deep sea fishing.
Choose gray with a blue, mirrored coating for deep sea fishing.
You can dive into deep-sea adventure without breaking the bank by signing up for package deals offered by VacationsMadeEasy.com.
Octopuzzle offers gamers the chance to explore the deep sea while solving a challenging brain teaser.
After all, the toddler that is playing "Elmo's Deep Sea Adventure" today could very well create the next "Doom", "Eudora", or "Halo" years from now.
Another watch made in the same vein is the Oyster Perpetual Sea Dweller 2000, made in 1971 for deep-sea divers.
Since 1927 Stowa has been creating seafaring, deep sea and military watches.
The resulting timepieces frequently appear on the wrists of professional deep sea or extreme divers and Polar field scientists.
Along with high-profile clientele such as Leonardo DiCaprio and Bruce Springsteen, Kobold's diving watches attract deep sea divers like James Samaki and Ingo Vollmer as well.
Not only are they aerodynamic and stylish, they come packed with a dazzling assortment of high-tech features in keeping with the company's commitment to the high standards set forth by Polar explorers, deep sea divers, and ice divers.
It is available in black, white, nude, hot red, bold pink and deep sea blue.
In every succeeding generation this would be the case, and even those with weak but still seeing eyes would in the course of time escape, until only a pure race of eyeless or blind animals would be left in the cavern or deep sea.
In 1902 the number of men employed in the home fisheries was 144,000 and the number of vessels 25,481 (tonnage 127,000); in the deep-sea fisheries 10,500 men and 450 vessels (tonnage 51,000) were employed.
The problem, however, of constructing a deep-sea cable satisfactorily, with suitable inductance coils inserted at short distances apart, is a difficult one, and one which it cannot be said has been solved.
The lagoon fisheries are also of great importance, more especially those of Comacchio, the lagoon of Orbetello and the Mare Piccolo at Taranto &c The deep-sea fishing boats in 1902 numbered 1368, with a total tonnage of 16,149; 100 of these were coral-fishing boats and 111 sponge-fishing boats.
The Auronectae are peculiar deep-sea forms, little known except from Haeckel's descriptions, in which the large pneumatophore has a peculiar duct, termed the aurophore, placed on its lower side in the midst of a circle of swimming-bells.
Actual or projected routes for telegraph cables across the deep sea have also been sounded with extreme accuracy in many cases; but beyond these lines of sounding the vast spaces of the ocean remain unplumbed save for the rare researches of scientific expeditions, such as those of the " Challenger," the " Valdivia," the " Albatross " and the " Scotia."
From 1879 to 1888 he was engaged on difficult experimental investigations, which began with an inquiry into the corrections required, owing to the great pressures to which the instruments had been subjected, in the readings of the thermometers employed by the "Challenger" expedition for observing deep-sea temperatures, and which were extended to include the compressibility of water, glass and mercury.
Generally, while there is a relative poverty of zoological groups, there is a great wealth of species within the group. Of gammarids, there are as many as 300 species, and those living at great depths (33 o to 380 fathoms) tend to assume abyssal characters similar to those displayed by the deep-sea fauna of the ocean.
The haaf or deep-sea catch principally consists of cod, ling, torsk and saithe.
The Italian geologist Soldani distinguished (1758) between the fossil fauna of the deep sea and of the shore-lines.