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The Lobster Conservatory includes information on the biology and conservation of lobsters. The majority can be applied to crayfish due to common ancestry and homology. Neural and tail anatomy provides an idea of the organization of the segmental ganglia in the tail of the crayfish. The second diagram on the page is a transverse section through ...
The inefficiency of the trapping system has inadvertently prevented the lobster population from being overfished. Lobsters can easily escape the trap, and will defend the trap against other lobsters because it is a source of food. An estimated 10% of lobsters that encounter a trap enter, and of those that enter 6% will be caught. [66]
It was recently discovered that spiny lobsters can also navigate by detecting the Earth's magnetic field. [18] They keep together by contact, using their long antennae. [19] Potential predators may be deterred from eating spiny lobsters by a loud screech made by the antennae of the spiny lobsters rubbing against a smooth part of the exoskeleton ...
Female California spiny lobsters reach sexual maturity at a length of 65–69 millimeters (2.6–2.7 in), which is typically at an age of 5–9 years; males are sexually mature after 3–6 years. [5] Because all the hard parts are lost at each molt, the life span of mature spiny lobsters is uncertain; [ 5 ] they are thought to live for 50 years ...
Caught lobsters are graded as new-shell, hard-shell, or old-shell. Because lobsters that have recently shed their shells are the most delicate, an inverse relationship exists between the price of American lobster and its flavor. New-shell lobsters have paper-thin shells and a worse meat-to-shell ratio, but the meat is very sweet.
Mate attraction: Male elephant fish often do not leave their territory and nest, so they use acoustic signals to attract females from a distance. When a gravid female approaches a male territory, he will grunt, moan and growl, in respective order, to signal her of his presence and to attract and induce her into becoming ripe for spawning.
Young dolphins, within the first few months of life, display their creativity by creating a unique sound. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 ...
On this European lobster, the right claw (on the left side of the image) is the crusher and the left claw is the cutter.. Homarus gammarus is a large crustacean, with a body length up to 60 centimetres (24 in) and weighing up to 5–6 kilograms (11–13 lb), although the lobsters caught in lobster pots are usually 23–38 cm (9–15 in) long and weigh 0.7–2.2 kg (1.5–4.9 lb). [3]