Weak-shelled

Describing an organism, particularly invertebrates like snails, crustaceans, or eggs, that possesses a shell or outer covering that is fragile, thin, or easily damaged. This vulnerability makes the creature more susceptible to predation, environmental stressors (e.g., physical impact, fluctuating temperatures, acidity), and desiccation. The thin shell offers less protection compared to more robust counterparts, often impacting the organism's survival and reproductive success. Factors contributing to a weak shell include genetic predispositions, dietary deficiencies (e.g., lack of calcium or other minerals), and exposure to pollutants that hinder shell formation.

Weak-shelled meaning with examples

• The beach was littered with the fragments of weak-shelled whelks, their fragile casings unable to withstand the relentless pounding of the surf. The high acidity of the ocean had weakened their shells, leaving them vulnerable to predators. Coastal pollution continues to cause damage, leading to a concerning decline of the whelk population in the region.
• The newly hatched sea turtles possessed incredibly weak-shelled eggs. The beach was constantly patrolled, the nests protected from predators like foxes and gulls who sought to destroy the turtle eggs. This lack of protection left them at great risk of predators and damage to their undeveloped eggs until the turtles grew and reached maturity.
• The snail farm experienced a significant loss due to a disease that attacked the calcium carbonate shell, rendering the snails weak-shelled. The affected snails were easily crushed and more susceptible to parasites. They lacked effective defenses, making them vulnerable. This crisis prompted a thorough investigation into the dietary supplements and other factors.
• Scientists are studying the effects of ocean acidification on marine life, observing that the shells of many organisms, including some species of plankton, are becoming weak-shelled. The reduced calcium carbonate availability in the water is a key factor. This research helps us understand how these creatures are impacted and try to prevent extinction of the plankton and others.