Cephalopod

They have an incredibly wide range of prey and many can be interchangeable as their predators. One organism that serves as both includes squid themselves. Cannibalism has been increasingly observed in Dosidicus gigas due to an increase its population and stress from fishing pressure (Ibarra-Garcia et al., 2014). This variability of predator-prey interactions occurs due to the fact that squid can be found just about anywhere in the open ocean. The brief squid Lolliguncula brevis can also be found in the Chesapeake Bay at a lower salinity than any Cephalopod can tolerate (Bartol et al., 2002). Ommastrephid squid are considered to be one of the most important prey in both the Atlantic Ocean and the western Indian Ocean (Young et al., 2013). Cephalopods are the only invertebrates considered to build a competitive ecological niche as fish, especially squid when it comes to numbers and speed (Moore,…

Have you ever wondered what the difference is between an octopus and a squid? While they are similar in many ways, they are also different in others. I will talk about both the similarities and the differences between their physical characteristics, their habitat, and their behavior. The octopus and the squid are both similar and different in the way they look. They’re closely related to mollusks. Squids have a backbone-like structure that is flexible which is similar to the shell of a snail.…

What do you think of when your hear the word “squid?” Sea monsters with enough size and strength to drag down a ship? Hellish man-eating creatures of the deep? Think again. When I think of the order Teuthida, I think of medical discoveries, saving lives, fascinating intelligence, and scientific revelations. I think of complex anatomy and diverse shapes and sizes. I think of adaptability and resourcefulness. I think you should read this research paper on squids. Squids have quite an…

Squids and Octopi may be two of the most fascinating and unique creatures to live on the planet. With each animal having close to over two hundred different species, two that distinguish themselves from all the other species are the giant octopus and the giant squid. A misconception often made is that these two animals are the same and just have different names. While they both belong to the same class of Cephalopoda, they are in fact two completely different species both belonging to a…

In their paper “Trans-Pacific Consumption of Cephalopods by North Pacific Killer Whales (Orcinus orca), “ Hanson and Walker points out that cephalopods, specifically squid, may be a larger part of the diet of many transient killer whales in the North Pacific Ocean that was once thought. They identified three particular ecotypes of whales observed in the North Pacific which include residents and offshores that both feed primarily on other smaller fish, and transients which feed on marine mammals.…

Squids and Octopuses are two very similar and incredible sea creatures who have lived on this earth for millions of years. Squids have gone down in history as fierce predators who are known to have taken down mighty predators like sharks as well as ships, in the 1700’s, giving them the description of giant sea creatures called Krakens. Octopuses have been known as great escape artists, with the ability to squeeze through smallest holes and crevices to escape predators at any given time. Both of…

But it actually doesn’t.They have small teeth, so they actually eat small crustaceans and cephalopods(S5). Cephalopods are octopi or squid. They only eat larger fish if food is scarce(S2), and when it does eat larger fish, the stomach distends to fit larger fish(S2). When it eats, it opens its’ mouth wide and scoops up the prey and swallows the prey whole(S5). Then it slowly expels the water through its’ gill slits(S5). Their only known predator we know right now is the lancetfish(S5).But there…

Most of the food Hawaiian monk seals consume are shallow coral reef fishes. These fishes make up 80% of their diet, cephalopods and crustaceans are the 20% of their diet that are consumed (Neubauer, n.d.). Hawaiian monk seals prey on about 40 species of marine animals that live in the coral reef. Most of the species are species of teleost fishes, crustaceans, and cephalopods. In the food web, the main predator of the Hawaiian monk seals are tiger sharks. Sharks are the main threat on these…

With their height being around 3-4 feet tall and with their weight being an average of 84 pounds. They have black bodies, a large torso, white bellies, necks with a yellow that fades into a white, black flippers, and black feet. Their average lifespan is 20 years with their role being predator. Their diet consists of fish, crustaceans, and cephalopods. They live on the coast of Antarctica unlike other penguins. Though they have no set niche, currently when it is time to mate, they move to the…

There could also be other deaths due to uninformed tourists or just people who haven’t heard of the octopi before. Even a professor in invertebrate behavior and ecology almost had a dangerous encounter himself (Dr. Roy Caldwell, Death in a Pretty Package: The Blue-Ringed Octopuses, The Cephalopod Page). The extreme long term effect could be that there is a genetic drift and their DNA is now in octopi in the western hemisphere as well, and no one will be aware of this and its threats. Although…