24
Match the following fisheries enhancement strategies with their descriptions:
Choose the correct answer from the options given below :
|
List - I
Strategy
|
List - II
Description
|
||
|---|---|---|---|
| A | Artificial upwelling Artificial upwelling | I | Creating conditions for vertical layering of water masses Creating conditions for vertical layering of water masses |
| B | Ranching Ranching | II | Introducing nutrients to stimulate phytoplankton growth Introducing nutrients to stimulate phytoplankton growth |
| C | Ocean fertilization Ocean fertilization | III | Capturing juvenile fish for rearing and release into the wild Capturing juvenile fish for rearing and release into the wild |
| D | Stratification Stratification | IV | Manipulating ocean currents to bring nutrient-rich water to the surface Manipulating ocean currents to bring nutrient-rich water to the surface |
EXPLANATION
Input, Output & Technical Management Controls
- Fisheries Enhancement Strategies Matching:
- Artificial Upwelling $\to$ (IV) Manipulating ocean currents to bring nutrient-rich water to the surface: Engineering interventions (pipes, submerged deflectors, wave pumps) to pump cold, nutrient-rich deep ocean water to the euphotic zone to fuel primary productivity.
- Ranching $\to$ (III) Capturing juvenile fish for rearing and release into the wild: Hatchery propagation and rearing of juvenile fish/shellfish followed by their release into natural open waters for subsequent harvest.
- Ocean Fertilization $\to$ (II) Introducing nutrients to stimulate phytoplankton growth: Artificial iron, nitrate, or phosphate seeding of High-Nutrient Low-Chlorophyll (HNLC) ocean zones to trigger diatom blooms.
- Stratification $\to$ (I) Creating conditions for vertical layering of water masses: Thermal or haline density stratification that stabilizes distinct vertical layers of water.
- Matching Summary:
- Correct Option: Option 2.
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