They accomplish this by feeding on algae and bacteria. 8 Species of mussels are native to the river. The most prevalent are the eastern elliptio mussel and the eastern lamp-mussel. Mussels are eaten by a variety of birds, turtles, fish, muskrats and other mammals. Zebra Mussels are an invasive species that can cause harm to native species by attaching themselves to their shells preventing free movement and can even cut off their oxygen
Perhaps the most well known place to see great whites is Dyer Island, which is off the coast of South Africa. Its main food sources are fur seals and sea lions, but they will also hunt large fish and sometimes other sharks. Some of the characteristics of a great white that make it unique is that
Biology Excursion Question Using data collected on field trip and two named animals, explain the relationship between the distribution and abundance of these two organisms and the abiotic features of the rock platform. There is a close relationship between the abundance and the distribution of organisms living amongst the long reef platform. Abiotic features such as temperature range, salinity, Ph. levels, turbidity, water availability effect the distribution and abundance of aquatic sea creatures living in the area. Some of the organisms such as Tesseropora Roseas (Barnacles) and Knobbly Winks have different adaptations, which allow them to survive in these harsh conditions.
The Northern Snakehead can survive up to four days out of water and can grow up to 33 inches long. The species has been nicknamed “Frankenfish” due to its shark-like teeth and aggressiveness. It was first introduced in a pond in Crofton, Maryland in June 2002. Researchers believe the species ended up in the U.S. due to uncaring disposal of aquarium pets. Other researchers think some people were trying to breed Snakeheads as they bring a large amount of money in some areas.
These little fellows are found higher in the intertidal area. Watch for them in tide pools, under rocks, and under clumps of seaweed. They're very common here. Lower in the intertidal, you'll see the granular hermit crab (Pagurus granosimanus). It has red or orange antennae, lacks hair, and its claws seem rough or grainy.
1. Introduction & Hypothesis Introduction: In conducting research I observed stimulation on a tide pool off the Washington State coast in the 1960’s. As the coast became more ecologically populated as the years went on, the competitiveness of species became very tough. (Keystone Predator Workbook) Since I enjoy being on the coast and observing the different kinds of algae and species I thought I would look closer into studying about them. While I was doing research, I identified the species I found.
Habitat loss, and other smaller factors, are driving this remarkable specimen extinct. This fish plays a fairly important role in a Coral Reef ecosystem. It, to put the task in simple terms, converts coral to sand, providing a home for countless crustaceans, microorganisms, and predators. Very few species of fish exhibit this behavior and, thus, makes the Rainbow Parrotfish a vital asset for this ecosystem. The juvenile Rainbow Parrotfish generally spends its time in "mangrove sanctuaries", areas where the roots of a mangrove tree grow into the ocean and serve as a safe haven for small fish.
The plants release dissolved oxygen and harbor fish and shellfish (Franklin, 2001). They swim in large schools close to the water’s surface. Throughout the spring, the schools of younger, smaller fish are found in estuaries, such as the Chesapeake Bay, and the larger, older fish are found further offshore and up north. Menhaden also play an important role to the fisheries, especially along the Atlantic and Gulf coasts. Humans don’t actually
It feeds on ectoparasites or dead tissue that it picks from the body and oral cavities/gills of these fish (e.g. ; Tangs or Groupers) in the wild or in the aquarium. This also helps to protect the fish from contracting diseases and infections. Many fish value its services so highly that they will allow it to clean the inside of their mouths, and not harm it. Some fish, though, such as Hawkfish, Lionfish, and some predatory shrimp and crabs may eat the Scarlet Skunk Cleaner Shrimp.
Their narrow pointed teeth are ideal for holding prey, most of which is swallowed whole. Tests on the feeding habits of angel sharks have shown that they react to any passing prey, spitting out anything that does not appeal to their appetite. They have complete faith in their camouflage when approached by divers but will inflict a shallow bite if harassed. The various species of Angel sharks range in size up to 6.5 feet (2 m) long and are mostly bottom dwellers that live on ocean floors of depths from 10 to 4,300 feet (3 to 1300 m). They sometimes prefer however, sandy near shore habitats.