Dissecting a Starfish

When considering dissecting a starfish, you must understand that this creature is a sea animal with a proportional endoskeleton. It feeds on mollusks and moves with hundreds of extremely small tube feet. Now, prepare the necessary tools for dissecting the starfish. These include a probe, a scalpel, dissection tray, scissors and pins. You must wear goggles and protective clothing to cover yourself against debris.

Pin your starfish into the tray in such a way that its top view faces you. Use the scalpel for cutting off one ray’s tip. Create two parallel, long incisions between the tip and the central disk, with each incision being close to the ray’s edge. Peel off the top tissue layer and find the lateral canal (to which the tube feet connect) and ring canal (to which all the rays’ lateral canals attach) then label these portions.

Expose and label the digestive glands of the starfish. Find the stomach by eliminating tissue out of the central disk. After labeling the stomach, find the gonads. You cannot detect the starfish’s gender without using a telescope because the gonads of starfish males and females look alike. After dissecting the starfish and before cleaning up the work area, ask your instructor first if you have located all the required starfish parts by letting him see all your labels.

Hunting Techniques

Starfish facts indicate that these animals have a generalist diet which means that can eat almost anything from clams and snails to dying fishes. But with the speed of these starfishes on the bottom of the ocean, one would definitely wonder how these animals can catch or hunt their prey. Starfishes begin hunting their prey through their keen senses. They can actually detect the presence of a prey’s odor. So when their senses detect prey, the legs begin to act More...

Handling Alive Starfish

In order to handle a life starfish properly, you need to gently pick it up and not bend or break its arms, which may be somewhat fragile and small on a number of species. Although starfishes are popular for their regeneration capabilities, you must always hold them very cautiously to minimize any possible damage. You have to wrap a moist towel around the starfish or put it in a handy marine environment (a container full of seawater), in case it More...

Drying a Starfish

Starfish can be dried by first mixing equal portions baking soda and table salt. Apply a thin layer of this mixture to the inside bottom of a shallow, small cardboard box. Then put that box aside for later use. In a casserole dish, combine one part “for home use” bleach and three parts water together. You will be needing enough of this solution for submerging the starfish completely. Place the starfish in your bleach solution then let it soak for More...

Process of Cooking Starfish

The first step of cooking starfishes is putting eight large pieces of them in a pot filled with cold water through the entire night. Chop these creatures into little pieces as you wake up in the morning. You have to chop each of them whole, which means that nothing should be removed from the starfish. Put the starfish slices into a mortar, along with a small quantity of pepper, salt and butter. Grind the whole mixture into some thin paste. More...

Handling Dead Sea Stars

Also referred to as sea stars, starfish are marine echinoderms that you can find on tide pools and beaches across the globe. National Geographic reports that there are more than two thousand species of starfish, though they all have the same physical appearance, which is composed of brittle and boney calcified skin. In the event that you find this creature, either dead or alive, you must handle it very carefully so that its fragile arms, will not be injured or More...

Structure of Body

Starfish is not really fish because fish is composed of backbones, fins and gills. Starfish is an echinoderm, which is an invertebrate that has a proportional radial body. Instead of scales, starfish species are mostly equipped with a leathery, rigid skin, which protects them against the attack of predators like birds and fishes. Calcium carbonate makes up the skin of all starfishes. Most of the starfish species are equipped with five arms, which extend out of a central point; nonetheless, More...

Starfish Facts on Environmental Dangers and Threats

According to zoologists who study starfishes and their impact to the environment, these sea creatures have a very important role in the oceans. They may look like decorations in the ocean floor but they are actually considered as keystone species because they contribute in creating balance of species under the sea which can be done through predation. With the starfish facts that people already know, it will be a good start to know what these animals do so that people More...

Starfish Facts about their Habitat

People who want to learn more starfish facts should also look into the habitat and the areas around the world where starfishes can be found. One key fact that you should definitely know is that starfishes will never survive when not in water. You may see a few of them on the beach but if they do not get into the sea soon, they will have a major electrolyte imbalance within their bodies. This is directly related to the starfish’s More...

Feeding a Red Starfish

When considering feeding a red starfish, you need to observe the animal to see what it is and it is not eating. A red starfish could be feeding on bacteria out of your aquarium glass, but steering away from other foods that you provide for other inhabitants in your tank. As an omnivore, the starfish must be given nutrients from the two sources. If frozen, your food will have to be thawed. Use tweezers or forceps for putting a thawed More...