ipl-logo

Oyster Essay

735 Words3 Pages

Oyster from the phylum of Mollusca in class Bivalvia. They are live mainly in intertidal zone. This species are commonly consumed, cooked or raw, by human as a food. However, some kinds of pearl oysters are harvested for the pearl produced within the mantel. Besides, the are highly calcified and many of them are irregular in shape.
Oysters are filter feeders. This species may remove organic particles and the plankton from the water column in order to improve the water quality and clarity. As the filter feeder, they will draw water in over their gills through the beating of cilia. After they draw the water, all the suspended plankton and particles that are trapped in the mucus of a gill then being transported transported to the mouth. The process …show more content…

Their mantel are lined with thin and small walled blood vessels through the gills. Besides, they have a small three-chambered heart that lying under the adductor muscle. This chamber will pumps colorless blood to all parts of the body. In the other hand,the waste product also being remove from the blood by the two kidneys, located on the underside of the muscle.
For reproductive process, most of their reproductive organs contain both eggs and sperm. So, it is possible for the oyster to fertilise its own egg. Their reproductive process started when the the female is fertilised. Millions of eggs will be discharges by the female in the water. In about six hours, the larvae will be develop and they will continue to swim around in two or three weeks more. The process followed the settle down of the larvae on the bed until mature within a year. In addition, their gonad are made up of sex cells, branching tubules, and connective tissue and also surrounded by the digestive system.
Besides, they also have the hard structure of shells. This special structure are very useful as the habitat for the other marine organism such as sea anemones, barnacles, and hooked mussels. Many of this small marine organisms are the prey to fish and the others larger

Show More
Related

  • Plankton Activity Postlab, Questions And Answers

    989 Words  | 4 Pages

    Plankton Activity Postlab 1) Apply 2.5: Use mathematical and/or computational representations to support explanations of factors that affect carrying capacity of ecosystems at different scales. Explain how the abundance of phytoplankton in the pond depends on the abundance of an abiotic resource such as nitrogen. - Phytoplankton are the producers in the pond. Species of organisms in ecosystems have their own carrying capacity relative to other species, and carrying capacities are determined by particular abiotic and biotic resources in an ecosystem. An increase in nitrogen levels in the pond (e.g. from fertilizers) will result in a dramatic increase in phytoplankton levels, but once phytoplankton population reaches its carrying capacity (determined by availability of other resources besides nitrogen, [DO] levels, predation etc.),

    Read More

  • Essay On Daphnia Magna

    187 Words  | 1 Pages

    Daphnia magna is a transparent water flea species found in rocky pools along the Atlantic Ocean. The Daphnia’s body is encased in a clear structure called carapace (Elenbaas, 2013). The exoskeleton, carapace, provides protection for the Daphnia magna, “The portion of the hard exoskeleton, or shell, that covers all or part of the body of many crustaceans…” (“Definition, n.d.). The heart can be easily seen under a light microscope due to the transparency of the skin (Handy, 2012).

    Read More

  • Summary Of Consider The Lobster By David Wallace

    1239 Words  | 5 Pages

    The article “Consider the Lobster” by David Wallace was first published in August 2004 and it has led to a lot of public controversies based on the morality and ethicality, surrounding the massive cooking of the lobster. There have been a lot of debates also from the vegetarians and the animal rights activists concerning the great lobster festival held at the Penobscot festival every late July. One thing we ought to understand is that the lobster is a summer food, and most people would want to have it freshly caught from the sea. In addition, it is a festival that is performed once a year, and therefore it gives them some time to reproduce. However, the central issue raised concerning this festival is based on the fact that some people feel that the festival is completely against the animal rights, and especially inflicts pain to the lobsters.

    Read More

  • Summary Of Summer Brennan's 'Oyster Farm Controversy'

    1277 Words  | 6 Pages

    I. The oyster farm controversy as the mirror of the societal strengths The book is also the story of how dominant viewpoints within the society manage to win battles in the controversy and imposed their ideas and paradigm at the expense of weaker or smaller stakeholders. First, we can see a slow shift between economic concern to environmental concerns under the prism of Drakes Estero transformation.

    Read More

  • Megae Bay Research Paper

    437 Words  | 2 Pages

    Fish use the grass for shelter, to hide and protect themselves. Next in the food chain are copepods, which are very small organisms in the animal community, which are mostly referred to as zooplankton. These zooplankton consume the algae and bay grass. The next link in the food chain are anchovies. Anchovies consume the zooplankton.

    Read More

  • Hawaiian Day Octopus Essay

    824 Words  | 4 Pages

    These animals are called polyps, and can live on their own, though tend to group up to form coral. Different groups of corals can eat different thing, depending on their size. A coral that is bigger would probably eat small fish, while a coral that is smaller might eat

    Read More

  • Sea Stars Research Paper

    1087 Words  | 5 Pages

    Their suctions help them survive extreme changes in environment like crashing waves or tidal waves. Their digestive system allows them to eat many different types of prey or smaller animals. The ambulacral grooves help to open shells enabling sea stars to digest

    Read More

  • Chesapeake Bay Restoration Project

    399 Words  | 2 Pages

    The Chesapeake Bay Oyster Restoration Project aims to help locate a healthy habitat for oysters. The Chesapeake Bay has been affected by the long-lasting drought in Maryland, which influenced the water quality. The drought increased the salinity of the water which has a negative impact on the oysters. According to the National Oceanic and Atmospheric Administration, “the native oyster is an extremely resilient species, able to tolerate wide variations in salinity and temperature—but it has not been immune to the pressures of disease, overharvesting, and pollution in the Chesapeake Bay. As a result, native oyster populations in Chesapeake Bay are at less than 1% of historic levels” (A,& Blue Water Media).

    Read More

  • Explain How The Blood Flows Between The Lungs And The Rest Of The Body

    911 Words  | 4 Pages

    Heart, lungs and the Rest of You By: Olivia Abel 1.Explain how the blood flows throughout your lungs, heart and the rest of your body.   Heart: Your left and right side of your heart work together to pump blood to and throughout your body which is separated by muscular tissue called the septum. In the right side blood enters through two large vein which are the inferior and superior vena cava, emptying poor oxygen blood from the body to the right reticulum. When the left side enters from the pulmonary veins and empties oxygen rich blood from the lungs into the aorta going throughout the body.

    Read More

  • Who Is The Antagonist In Icebreaker

    873 Words  | 4 Pages

    Directions: Please answer the following questions in complete sentences. Title: Icebreaker Author: Lian Tanner Genre: Fiction Write the names of the most important characters in the story and identify the relationships between these characters. The major characters are Petrel, Finn, Missus Slink, Mister Smoke.

    Read More

  • Ap Biology Research Paper

    1818 Words  | 8 Pages

    The haploid spores are produced in a sporangium. Each spore divides mitotically to produce a heart-shaped gametophyte. Male and female parts are developed on the same plant. Gametophyte is small in size and can photosynthesize. In order for the fertilization to take place, enough water should be available so that the sperm may swim to archegonia and fertilize the eggs.

    Read More

  • Sepia Apama Essay

    732 Words  | 3 Pages

    In order to catch these prey the Australian Giant Cuttlefish use camouflage to while awaiting their

    Read More

  • Agricultural Pollution In The Chesapeake Bay

    1241 Words  | 5 Pages

    This occurs because excess nutrients can fuel the growth of algae blooms that block sunlight from reaching underwater grasses and, during decomposition, rob the water of oxygen that plants and animals need to survive. Certain species of algae that are common in bodies of water plagued by eutrophication can also contaminate shellfish. When consumed by humans, these diseased aquatic invertebrate cause paralytic shellfish poisoning: a potentially fatal disease. Unfortunately, though there are many drawbacks and negative effects on the water quality in the Bay, no real benefits are found in the water when agricultural pollution is present. The most destructive components of agricultural pollution are livestock manure, poultry litter, and chemical fertilizers.

    Read More

  • Summary: The Top-Down Effects Of Brine Shrimp On Algae

    1219 Words  | 5 Pages

    72580 Rodriguez Silva The Top-down Effects of Brine Shrimp on Algae INTRODUCTION An ecosystem is a delicate structure moderated by the network of interactions between all of the organisms that inhabit it. These organisms can be arranged into trophic levels, forming a chain or pyramid in which energy flows from one level to another.

    Read More

  • Essay On Sexual Reproduction

    1000 Words  | 4 Pages

    Internally fertilized eggs are deposited in gelatinous mass. The large, yolky egg of terrestrial snails are deposited in moist environments, such as leaf litter, and a calcareous shell may encapsulate them. In marine gastropods, spiral cleavage results in free swimming trochophore larva that develops into another free swimming larva with foot, eyes, tentacles, and shell called a veliger larva. Sometimes, the trocophore is suppressed, and the veliger is primary larva. Torsion occurs during the veliger stage, followed by settling and metamorphosis to the

    Read More

More about Oyster Essay

Open Document