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Difficulty: HardHuman and Economic Geography of the World

Match the major global commercial fishing grounds in List-I with their corresponding oceanographic and hydro-geographic characteristics in List-II. Which of the pairs are correctly matched?

  • Grand BanksShallow submerged continental shelf area where the cold Labrador Current meets the warm Gulf Stream
  • Dogger BankShallow sandbank in the North Sea historically famous for abundant demersal species like cod and herring
  • Peruvian CoastWind-driven coastal upwelling zone rich in nutrient salts that support massive anchoveta populations
  • North-West Pacific WatersConvergence zone of the cold Oyashio and warm Kuroshio currents creating ideal pelagic fish habitats

Answer

Grand Banks matches with the shallow continental shelf where the cold Labrador Current meets the warm Gulf Stream; Dogger Bank matches with the shallow North Sea sandbank renowned for cod and herring; Peruvian Coast matches with the wind-driven coastal upwelling zone supporting anchoveta fisheries; and North-West Pacific Waters match with the convergence zone of the cold Oyashio and warm Kuroshio currents.
Each major fishing ground is accurately paired with its primary hydro-geographic driver: Grand Banks is formed by the Labrador and Gulf Stream convergence; Dogger Bank is a shallow sandbank in the North Sea; the Peruvian Coast relies on Humboldt Current upwelling; and the North-West Pacific region depends on the Oyashio and Kuroshio current collision zone.

Step-by-Step Solution

1
Identify the oceanographic features of Grand Banks
Grand Banks is located in the North-West Atlantic near Newfoundland where the cold subarctic Labrador Current collides with the warm thermal Gulf Stream over a shallow continental shelf.
Thermal mixing and shallow bathymetry optimize plankton blooms.
2
Identify the geographical context of Dogger Bank
Dogger Bank is situated within the North Sea shelf area, characterized by shallow submerged land that concentrates bottom-feeding (demersal) and pelagic fish populations.
Shallow depth facilitates sunlight penetration and benthic productivity.
3
Analyze the Peruvian fishing ecosystem
Offshore wind transport (Ekman drift) along South America's Pacific margin causes cold, nutrient-laden bottom water to rise (upwelling) via the Humboldt Current, sustaining vast anchoveta biomass.
Upwelling supplies essential nitrates and phosphates to surface plankton.
4
Analyze the ocean currents surrounding Japan in the North-West Pacific
The North-West Pacific ocean realm features the meeting of the cold Oyashio Current from the Bering Sea and the warm Kuroshio Current from the south.
Frontal hydrographic zones create concentrated marine food webs.

Key Concept

Spatial distribution and oceanographic determinants of global commercial fishing grounds in economic geography
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Topics

Human and Economic Geography of the World

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