Question

Single largest fish species which supports fishery along the coast of Peru is

• A. Theragra chalcogramma
• B. Engraulis ringens
• C. Clupea harengus
• D. Katsuwonus pelamis

Hint:

World Fisheries Records: Single Largest Global Fish Harvest = PERUVIAN ANCHOVETA (Engraulis ringens) in the Humboldt Current upwelling system.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
World marine fisheries and Humboldt Current upwelling ecosystems: the Peruvian anchoveta (Engraulis ringens) yields the single largest monospecific fish harvest on Earth.
Key Formula or Approach:
\[ \text{Humboldt Upwelling Ecosystem} \implies \text{Massive Primary Production} \implies \text{Peruvian Anchoveta (Engraulis ringens) Landings (5--12 Million Tons/yr)} \]

Step 2: Detailed Explanation:
In global marine fisheries and upwelling ecology:
- The coastal Humboldt (Peru) Current is the most productive eastern boundary upwelling ecosystem in the world.
- The Peruvian Anchoveta (Engraulis ringens) (Family Engraulidae) feeds directly on dense blooms of chain-forming diatoms and zooplankton, sustaining the single largest single-species (monospecific) commercial fishery in human history (historically producing $8 - 12\text{ million metric tons}$ annually, primarily processed into fishmeal and fish oil).
- (Theragra chalcogramma = Alaska pollock in North Pacific; Clupea harengus = Atlantic herring).

Step 3: Final Answer:
Thus, the single largest fish species along Peru is Engraulis ringens, corresponding to option (B).