mathematics

RV Ernest Holt

RV Ernest Holt is a mathematics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand RV Ernest Holt rather than just read about it. In short: RV Ernest Holt (GY591) was a fisheries research vessel that was operated by the Ministry of Agriculture, Fisheries and Food (United Kingdom) - Directorate of Fisheries, now known as the Centre for Environment, Fisheries and Aquaculture Science (Cefas). Research aboard the RV Ernest Holt around Bear Island (Norway) in the Arctic established an important link between fishable cod concentrations and water temperatures.

Key takeaways

RV Ernest Holt belongs to mathematics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect RV Ernest Holt to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of RV Ernest Holt from memory before moving on to harder problems.

Reference excerpt

RV Ernest Holt (GY591) was a fisheries research vessel that was operated by the Ministry of Agriculture, Fisheries and Food (United Kingdom) - Directorate of Fisheries, now known as the Centre for Environment, Fisheries and Aquaculture Science (Cefas). Research aboard the RV Ernest Holt around Bear Island (Norway) in the Arctic established an important link between fishable cod concentrations and water temperatures. In her later years she carried out some of the first exploratory voyages to the deep water grounds of the continental slope to the west of Britain. Being too deep in draught for convenient operation from Lowestoft and being crewed and operated primarily for the arctic fisheries based on Humberside, RV Ernest Holt worked from Grimsby, although managed and directed from the Fisheries Laboratory Lowestoft. In 1971 she was renamed "SWITHA" and became a Scottish Fisheries Protection Agency vessel. She was wrecked on 31 January 1980 off Inchkeith Island in the Firth of Forth and subsequently blown up as a hazard to shipping.

Construction During 1946, the vessel was designed by Mr V Gray of Cochrane & Sons, Selby. The commercial trawler "St. Bartholomew" (later Stella Arcturus) had been proven to behave well in bad weather on her maiden commercial voyage and hence RV Ernest Holt was built along similar lines. The new ship was launched at Selby (Yorkshire) on 9 June 1948, by Mrs A.T.A Dobson, wife of the then Fisheries Secretary. In naming RV Ernest Holt it was thought fitting to commemorate the pioneer naturalist of North Sea fisheries investigations Ernest William Lyons Holt, whose work at Grimsby in the 1890s had provided the foundation of fisheries science. The first Master of the RV Ernest Holt was Captain W.R. Ingham, with a crew complement of 26. The planned complement of research staff was two naturalists and two technicians, but it was found necessary to modify this to three naturalists and one or two technicians. Trials were carried out in the Humber in December 1948 and the ship sailed from Grimsby on her maiden voyage on 4 January 1949.

Service as a fisheries research vessel Fisheries survey logbooks from RV Ernest Holt research campaigns in the 1950s have now been fully digitized by scientists at the Centre for Environment, Fisheries and Aquaculture Science, revealing how cod in the Barents Sea and around Bear Island (Norway) responded to changing seawater temperatures during the 20th century. Datasets collected aboard the RV Ernest Holt were instrumental in the ground-breaking book On the Dynamics of Exploited Fish Populations written by Ray Beverton and Sidney Holt in 1957.

See also Centre for Environment, Fisheries and Aquaculture Science Bear Island (Norway) Ernest William Lyons Holt

References

Illustrations

Worked examples

Example 1 — a first encounter with RV Ernest Holt

Start with the simplest possible case. Write down what RV Ernest Holt claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In mathematics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to RV Ernest Holt before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about RV Ernest Holt ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of RV Ernest Holt

In research: RV Ernest Holt appears in mathematics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses RV Ernest Holt in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: RV Ernest Holt is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1948 ships, IMO numbers, Research vessels of the United Kingdom, so understanding it makes those chapters shorter.
In everyday life: Look for RV Ernest Holt outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study RV Ernest Holt in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what RV Ernest Holt means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain RV Ernest Holt out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is RV Ernest Holt in simple terms?

Why does RV Ernest Holt matter?

Because it connects several mathematics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study RV Ernest Holt?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on RV Ernest Holt.