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In marine mussels, fertilization occurs outside the body, with a larval stage that drifts for three weeks to six months, before settling on a hard surface as a young mussel. There, it is capable of moving slowly by means of attaching and detaching byssal threads to attain a better life position.
A molluscivore is a carnivorous animal that specialises in feeding on molluscs such as gastropods, bivalves, brachiopods and cephalopods.Known molluscivores include numerous predatory (and often cannibalistic) molluscs, (e.g. octopuses, murexes, decollate snails and oyster drills), arthropods such as crabs and firefly larvae, and vertebrates such as fish, birds and mammals. [1]
[28] [30] The very few surveys on population densities over large areas reported around 1000 mussels per square meter. [29] [31] In lakes, reservoirs and rivers, mussel colonization is often restricted to coastal areas, where hard substrata are more abundant because loose sediments are winnowed away from these higher energy zones towards deeper ...
The buccal mass is the first part of the digestive system, and consists of the mouth and pharynx. The mouth includes a radula, and in most cases, also a pair of jaws.The pharynx can be very large, especially in carnivorous species.
Mussels are filter feeders that pump water through their siphons to collect food particles from the water. They gather essential nutrients and remove unwanted toxins from the water. [ 3 ] Depending on the state, many organizations and conservationists, are making attempts to recover the pink mucket.
Can fish feel pain? The debate rages among scientists as to whether fish do, in fact, feel pain or are just reacting erratically to certain stimuli.
However, they do not colonize bare rock easily, instead preferring the shelter of pre-existing mussels and their biological filaments. Mussels attach themselves to the hard surfaces using their thread-like byssus. Given the right circumstances, California mussels can grow up to 200 mm (8 inches) in length and may live for more than 20 years.
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