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Edible molluscs are harvested from saltwater, freshwater, and the land, and include numerous members of the classes Gastropoda (snails), Bivalvia (clams, scallops, oysters etc.), Cephalopoda (octopus and squid), and Polyplacophora (chitons). Many species of molluscs are eaten worldwide, either cooked or raw.
Freshwater snails are gastropod mollusks that live in fresh water. There are many different families. There are many different families. They are found throughout the world in various habitats, ranging from ephemeral pools to the largest lakes, and from small seeps and springs to major rivers.
Snails as a food date back to ancient times, with numerous cultures worldwide having traditions and practices that attest to their consumption. In the modern era snails are farmed, an industry known as heliciculture. The snails are collected after the rains and are put to "purge" (fasting). In the past, the consumption of snails had a marked ...
Usually, the food is embedded in a string of mucus produced in the mouth, creating a coiled conical mass in the style sac. This action, rather than muscular peristalsis, is responsible for the movement of food through the gastropod digestive tract. [1] Two diverticular glands open into the stomach, and secrete enzymes that help to break down ...
These snails are sometimes viewed as pests in aquarium tanks with fish, because the snails create waste, reproduce very often, and are very hard to remove completely. However, some aquarium owners deliberately chose to add these freshwater pond snails to their tank because the snails will eat uneaten fish food, algae and waste, as well as ...
This class comprises snails and slugs from saltwater, freshwater, and from the land. There are many thousands of species of sea snails and slugs, as well as freshwater snails, freshwater limpets, land snails and slugs. The class Gastropoda is a diverse and highly successful class of mollusks within the phylum Mollusca.
They’ll devour extra fish food, hoover up dead organisms, and clear away decaying plants. Living for up to two to three years, freshwater snails are compatible with most colorful tropical fish ...
The two major classes of molluscs have representatives in freshwater: the gastropods (snails) and the bivalves (freshwater mussels and clams.) It appears that the other classes within the Phylum Mollusca -the cephalopods , scaphopods , polyplacophorans , etc. - never made the transition from a fully marine environment to a freshwater environment.