The Caribbean Reef Squid, Sepioteuthis Sepioidea, is one of the most exotic and alienated creatures in the ocean. Being one of the most intelligent invertebrates, they only get to about 12-20cm in length and have torpedo-shaped bodies with 10 tentacles “fixed to its head”, and are arranged in a circle around its mouth. The Reef squid is fairly common, especially around Florida, Bermuda, South America, and the Bahamas, and travel in schools (4-30) and aren’t scared of divers, if not curious about them. Squids are abundant in all oceans around the world, but the Caribbean Reef Squid lives from 2m below water to the deep depths of the ocean. The Reef squid has 10 tentacles; 8 around its mouth for feeding, and 2 long club-like tentacles for grasping …show more content…
However males can fertilize multiple females before dying. Females lay seven to eight eggs within a capsule and deposit such capsules on the substrate. Egg capsules are common among other squid and resemble pods of plants; the amount of eggs present in each capsule is usually more abundant in other species of squid. After hatching from the capsules, the juveniles reach maturity in approximately 6 months. The female finds a mate by picking the largest male, then the male swims around the female until she accepts him. The male attaches a sticky patch of sperm to female’s body, later the female takes the packet and places it into her semnal receptacle, then dies. When a reef squid is in danger, it squirts out ink to distract the enemy then jets away. The Caribbean Reef squid mostly resembles the Cuttle Fish; they’re usually green or brown while the ventral is camouflage. For camouflage and for surprisingly complex communication Reef Squid can rapidly change skin color and pattern by sending nerve pulses to receptors called chromatophores. For example, if a female squid were alarmed by a male squid attempting to mate, the female squid would change to a different color, while the male squid would jet water towards her to try to calm
During the day, the squid bury itself in sand or muddy area near sea grass beds. Besides that, it forms camouflage by gluing sand grain to its body. Night, they emerge to feed. A type of bioluminescence sea creature. It will emit light from their ventral surface. The light emitted is adjusted to match the intensity of moonlight. Collaboration of Hawaiian bobtail squid's eyes and extraocular vesicle use to monitor the down-welling light via silhouette reduction. This behaviour called as counter-illumination. Thus, the squid can adjust the intensity of bioluminescence as it moves to various depth by modifying the ink sac, which function as a diaphragm around the
Have you ever gone swimming in the ocean? Have you ever thought of going under the water? Have you ever thought of the big sea monsters way at the bottom? The kraken is a huge monster that has been said to reside at the floor of the ocean.The Kraken is a giant squid that lives under the sea, when it eats it has a different appearance than when it attacks and is so powerful that it can pull down ships. The kraken has suction cups at the bottom of its tentacles.
Blue Bottle Jellyfish (Physalia utriculus): has an air sac for a float and long blue tentacles which can be up to 10 metres long (the Blue Button's tentacles are short).
Gammarus setoseus is a kind of tiny, shrimp-like oceanic organism. Adult G. setosus is typically 20-35mm long (Weslawski 2009), but the organism we use in our research is generally 5-10mm, which can be classified as juvenile. The head and body of G. setosus is covered with grey and translucent thin shell, which have a function of support and protection. On the top part of G. setosus, there are two dark black eyes and a mouthpart, as well as two slender extended tentacles. It has a dozen of limbs arranged in two lines under its body, which
The Humboldt squid, or the red devil, obtains nutrients by herding fish against the rocks. They then flash red and white to disorient their prey and make them easier to catch. They pull their prey into their mouths with their barbed tentacles and tear it apart using their sharp parrot-like beaks.
Living in the deep-sea part of the waters, these animals may need certain features to help them survive there. The giant squid, for example, has ¨the largest eyes of any animal on earth.¨ Living, on average, around 500 - 1000 meters below the the ocean's surface, where it
Moon Jellyfish are in the “Animalia Kingdom, Phylum Cnidarian, Class Scyphozoan, Order Semaeostomeae, Family Ulmaridae, and Genus Aurelia” ( Myers, 2016 ; Espinosa, ; 2016 ; Parr, 2016 ; Jones, 2026 ; Hammond, 2016 ; Dewey, 2016). The morphological description of Cnidarians are corals, sea anemones, jellyfish and hydroids. These cnidarians form a diverse phylum that contains ~9000 species, which live in aquatic (predominantly marine) environments. The phylum-defining trait of Cnidaria is the stinging cell, the nematocyte an extrusive organelle used for predation, adhesion and defense (Holstein, 1981; Lengfeld et al., 2009; Tardent and Holstein, 1982) (Steele and Technau; 2011). Also, this phylum, Cnidarians, are divided into two groups, “Anthozoa (sea anemones, corals and sea pens), which live as
There are many different varieties of coral, each varying in structure. There are Four classes of species of coral, each has its own method of harvesting. One species of coral is LPS and SPS, which means large-polyp stoney and small-polyp stoney. Aquarists write articles informing people about the structure of frogspawn coral, “ they are LPS corals that develop multiple branching heads connected to a single trunk like structure” (Gosnell, 82). Frogspawn is a
The big fin reef squid has an oval fin that extends on its backbone. The big fin reef squid can weight up to 1.3 lbs.in just 4 months. The big fin reef squid can be as long as 13 inches. The big fin reef squids fin is similar to the cuttlefish.
In 2004, the giant squid had been discovered in deep, inky waters (Schembri 1). These creatures had frequently been misconstrued as monsters throughout history, in sailors’ yarns, wives tales, and even official reports. With a length of 40 to 42 feet, the leap of faith does not seem so difficult. (Giant 1) Giant squids are not known anymore to sink ships like their Kraken persona, but they are extremely territorial, even fighting sperm whales to protect their homes (Coppens 4). Despite being capable of eating just about anything with meat on it, Giant Squids mainly feed on small fish and clams (Schembri 1). For millennia, the giant squid lived in the realm of legends. Its existence lied in the study of cryptozoology, or “the pursuit of wildlife
Some large school of fish can be found looking for food, such as the schoolmasters and the sergeant majors. During the day that is when the coral polyps are the busiest, because the spiny lobsters and long-spined black urchins hide In It. At the night time, that is when they come out to get their own food. Fish that live near the coral polyps are usually very colorful. There are lagoons in between barrier reef and the shoreline. The lagoon has calm water and has sand on the bottom. Lagoons are usually covered in turtle grass and green algae. But enough talking about lagoons. The coral polyps issue is the death of the corals worldwide.
This paper is about octopus dofleni, which is a bottom-dwelling octopus that lives on coasts of the pacific ocean, from Northern Japan to California. This essay will provide a brief overview of its life, habits and other characteristics of this, intelligent and creative invertebrate and member of the Octopodidae family.
Dactylozooids form these tentacles that hang into the waters below at an average depth of 10 meters and are used to ward off any predators, and capture any prey. Since dactylozooids can survive alone, they become a real danger as deadly, toxic cnidocytes can wash ashore and injury or even kill beachgoers. Physalis toxin is extremely potent because they must paralyze their prey instantly if they are to have a chance to digest it. The tentacles are also pigmented blue as a camouflage in the blue sea water. Young fish, eel, larvae or really any animal that passes through the tentacles is stung and, if small enough, brought closer to the body for digestion. Digestion is a fairly simple process in which the tentacles contract bringing whatever was captured closer to the gastrozooids that lie just below the upper pneumatophores. Enzymes released by gastrozooids break down the food and distribute energy throughout the body to all other
Some people regard sponges as small, unimportant creatures, but for an animal with no brain, they do a lot. They are the one of the simplest creatures with more than one cell. “Porifera” is the group in which sponges are classified. They are filter feeders, which means that they have small holes that take in good water and nutrients, other holes to take out carbon dioxide and other unneeded things, and are able to eat very small bacteria. You may think that sponges only have one or two species, but sponges can come in many different sizes and colors. One species, Sycon ciliatum, only grows up to .002 inches tall! The barrel sponge can grow big enough to fit a human inside!
Other than the ability to live for ever it’s really not that special. Having up to 90 tentacles only 4.5mm in width it’s smaller than your fingernail. It was discovered in the Mediterranean Sea, but has been in areas as far away as japan. It’s mostly transparent, except for it’s red stomach. Which they fill with small mollusks, fish eggs and planton. Which they catch like any other jellyfish, with a stinging cell.