Cephalopod

THE AMAZING CIRCULATORY SYSTEM The circulatory system preforms many different jobs. It carries oxygen to the cells of the body and it also caries nutrients throughout the body to make heat and energy. In addition to that, the vascular system delivers hormones to specific organs. Another thing the circulatory system does is collect metabolic waste and deliver it to the excretory glands. Lastly, the circulatory system works with the immune system to help fight infection and defend. The fact that…

of Heavy Metals in Shellfish for the Population in Nha Trang City, Vietnam” (Nguyen et al, 2013), the concentration range of Cd in shellfish is 0.013 – 0.056 mg/kg. About the pollution of heavy metals, the anabiosis of Cd was 97%. In gastropods, cephalopods, crustaceans and bivalves, the concentrations (mg/kg) of Cd in 5 sampled months were 0.033 – 0.072, 0.012 – 0.013, 0.019 – 0.034 and 0.032 – 0.073 in the range, and the mean concentrations (mg/kg) were 0.054, 0.013, 0.026 and 0.056. About the…

False Killer Whales versus Killer Whales Both Killer whales (Orcinus orca) and False killer whales (Pseudorca Crassidens) belong to the Delphinidae family. False killer whales resemble orcas because of the shape of their skulls, but the two species are actually not closely related (Baird, 2012). False killer whales are found in all tropical, subtropical, and warm temperate seas (MarineBio, 2013), usually in relatively deep offshore waters (Taylor, et al., 2008). In contrast, killer whales are…

Just like pores on human skin which absorb elements of the world around us, the holes all over the sponge’s body as essentially pores as well. The function of the holes all over the sponge’s body is to allow water to be absorbed into the sponge’s body. Through the absorption of water, the sponge also absorbs food and oxygen to ensure survival. There is no one set type of symmetry for sponges. Therefore, not all sponges have the same type of symmetry. Sponges can range from asymmetrical to…

extensive uses of descriptive terms. For example, Hanlon (2007) argues that animal camouflage patterns can effectively be defined by three basic pattern classes, ‘uniform’, ‘mottle’ and ‘disruptive’, and that while initially based on appearances in cephalopods, which can adjust their patterning, the grouping seems to apply to other animals as well. We feel this approach is counterproductive and will lead to confusion, particularly because such an approach does not aid the understanding of how…

Biomphalaria glabrata is a freshwater snail that originates from Central and South America. The NMRI strain of Biomphalaria glabrata exhibits albinism. The snails’ albinism makes them transparent, which provides the opportunity to observe their circulatory anatomy and physiology. They lay eggs in masses, with 2-30 eggs per mass. The eggs go through several developmental stages. First, they are fertilized. Each egg contains a single embryo, which then begins to grow. Each embryo measures…

Prey species use antipredator traits to avoid confrontation with predator species and also to escape once predators have located them. This in turn, helps the prey to survive and reproduce. The traits consist of the phenotypes that the specific prey species displays, and can range from the development of defensive structures as the organism matures, and can also include any behavior the species displays, for example learning to recognize the predator and how to avoid being eaten (Hanlon &…

Bottom trawling vessels registered in this study are mainly single rig otter trawler, and operate the benthic fauna, including fish (e.g. Trichiurus japonica, Larimichthys polyactis), crustacean (e.g. Metapenaeopis lata), and cephalopod (e.g. Loligo kobiensi).In 2013, for the Xiangshan Port chosen in this study, there were 3139 fishing vessels, including 1403 bottom otter trawling, and the total landing was 0.44 million tons (fish: 0.34 million tons; crustacean: 58.40 thousand…

4. Uptake and bioaccumulation of plastic derived chemicals A key factor contributing to the bioavailability of microplastics is their small size, density, color, surface (smooth or rough) (Stephanie L. Wright a,2013). Food chain disturbance in marine environment is the major problem because due to ingestion of plastic which consists of polychlorinated biphenyl (PCB), POP and PAH. They absorbs/bioaccumulation in the fatty acid of living organism and cause death of the species. At least 180…

Octopus Vulgaris and Memory Octopus Vulgaris are invertebrates who are a species of cephalopods that are among the smartest and most functionally diverse animals not only in the ocean, but of the planet. Octopus Vulgaris have been tested for their knowledge with memory and survival through experiments. Memory is an important part of O. Vulgaris life because they need to have a mental map of where they went so they can remember where their home base is. They also need good memory to remember how…