Sea urchins are a group of marine invertebrates in the class Echinoidea. Sea urchins tend to have round, sedentary bodies that are covered in hard...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your tough ...
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Sea urchins have many predators; crabs, fish, birds and humans. The edible part of the urchin, although commonly referred to as the “roe” or the Japanese word for it “uni” is actually the gonads of the urchin. It lies within the shell in five orange-like sections. Nutrients are sto...
In temperate northern regions, where most studies on kelp forest benthic food webs have been conducted, kelp grazing is a well-documented phenomenon and can lead to the overgrazing of M. pyrifera by sea urchins when their predators (e.g., sea otters) are absent. In contrast, little is ...
Sea urchinsare good algae eaters who mainly gather in colder, offshore waters. Intriguingly, they travel into shallow waters in search of food. The sea urchins possess a structure called Aristotle’s lantern, consisting of five rigid plates that come together like a beak which enables them to ...
off and fall to the bottom to provide food for the urchins in their crevices. The sea otters thrive hunting for sea urchins in the kelp, and many other fish and invertebrates live among the fronds. The problems start when the sea otter population declines. As large predators they are vuln...
Do urchins eat asterina starfish? Sea urchins are opportunistic omnivores.They *can* eat a starfish, but they almost certainly wouldn't kill one. Do asterina starfish eat coralline algae? The vast majority areopportunistic scavengersand/or herbivores that eat coralline or other types of algae....
Many prey species are faced with multiple predators that differ in the degree of danger posed. To be adapted to their environment and face predatory threats, organisms must balance their energy budgets as they invest in different aspects of their life history, such as growth, feeding, mating, ...
Are sea slugs harmful? Some sea slugsare toxic, but this sea slug has not previously been known to contain this particular toxin. Sea slugs naturally produce toxins to deter predators, such as fish, from eating them because they are vulnerable, being soft-bodied and slow-moving. ...
Regardless of where sharks live or how big they are, all of them are predators and, therefore, are vitally important to the health of their habitats, said Jenny Bortoluzzi, a doctoral candidate in the Department of Zoology at Trinity College Dublin in Ireland. Fish-hunting sharks weed out ...