L

  • Larva: The initial stage of development after hatching from an egg.

  • Lethargy: Sluggish, apathetic behavior, indicative of stress or disease.

  • Lethal Dose (LD50): The dose of a substance (e.g., toxin, chemical) that is lethal to 50% of a test population.

  • Liming: The application of lime (calcium carbonate and/or magnesium carbonate) to the soil (between cycles) or water to correct pH, alkalinity, and hardness.

  • Lipid: Fat; an essential component of feed, used as an energy source.

  • Litopenaeus vannamei: The scientific name for the Pacific White Shrimp, the main species farmed globally.

  • Lot: A specific group of animals, usually from the same stocking or cycle.