The Red Snapper is also known as Lutjanus campechanus, they are pink to a red color (Louisiana Fisheries). They are commonly known as the North American Red Snapper, Snapper, Genuine Red Snapper. Their color starts to fade off under their bellies (Louisiana Fisheries). Some key characteristics are their red eyes, and their anal fin pointed than rounded. (Louisiana Fisheries).
Predation: Yellowfin Tunas are eaten by a wide variety of predators. When they are newly hatched, they are eaten by other fishes that specialize on eating plankton. As they grow, they are preyed upon by pelagic hunters including large tunas, wahoo, sharks, billfish and seabirds. Adult Yellowfins are not preyed upon except by largest and fastest such as toothed whales, largest billfishes, and some open ocean shark species such as the “mako” and great white. In general, because yellowfins are strong swimmers, they can escape most
They vary in sizes. For instance, the largest one (Sepia apama) has mantle which 50cm in length. Other species sizes are between 25cm to 15cm.They feed on other cuttlefish, fish, octopodes, small mollusks, crabs, and shrimps. This report discusses the cuttlefish behavior and its ecology. The internal and external body structure of cuttlefish comprised of various structures that influence their behaviors.
In vegetated habitats, rainbow trout often have the opportunity to eat terrestrial insects that fall into the water such as ants, beetles, and crickets. The prey of rainbow trout may include small fish up to one-third of their length, crayfish, shrimp, and other crustaceans; but their most important food is freshwater shrimp, containing the carotenoid pigments responsible for the orange-pink color in trout flesh. They may also consume decomposing flesh from carcasses of other
1. Introduction: This report will mainly focus on some adaptation features creatures which live in the lake and wetland freshwater habitat have. 2. The adaptive features of animals: i. Adaptation to live in the habitat lack of oxygen A. Crayfish: Crayfish lives in fresh water stream, which is an aquatic environment.
Then the aquarium owner will carefully select the appropriate aquatic life for the desired aquarium. Maintaining freshwater or saltwater aquariums is an enjoyable hobby, but people typically prefer one or the other because of the establishing, maintaining, and acquiring of aquatic life. When establishing a fresh or saltwater aquarium one should keep in mind the aquatic life they have chosen, because it can dictate the size of the aquarium they would be able to get. Once an aquarium size is determined the owner will begin by filling the aquarium with water. For fresh water aquariums, tap water is acceptable as long as a dechlorinating solution is used for the desired amount of water.
5) No scuba diving allowed. 6) No flash photography allowed. 7) Absolutely no feeding of fish allowed Here are some interesting facts about whale sharks you ought to know: -They are the largest fish on earth - They are not related to whales but are a type of shark; a very tame shark which feeds mostly by filtering plankton. - Whale sharks can reach weights of up to 12,000 kilos, or 24,000 pounds!! -A whale shark needs to move its whole body from side to side in order to swim, so it can only reach speeds of up to 5km/hr.
Just like all living things, they are prone to stress and more often than not, stress has detrimental effects on cultured fish. Reducing stress in aquaculture therefore is especially valuable because the recognition of stressed states as well as the management of fish health is critical to an aquaculture venture as the smallest amount of stress can have long lasting negative effects on the fish (Iwama,
The sustainability and development of shrimp aquaculture are at stake as significant ecological and pathological problems are increasing in vast majority of the shrimp producing countries. The production is regularly and seriously affected by problems linked to environmental degradation and to infectious and non-infectious diseases (Bachere, 2000). Of the infectious diseases, bacterial and viral infections, either as single or multiple pathogen conditions caused most of the production losses. White spot syndrome virus (WSSV) first appeared as an epidemic in penaeid shrimp farms in 1993 in China and then quickly spread in Asian countries and subsequently to all over the world (Chou et al., 1995). WSSV has been reported to cause severe mortalities of cultured penaeid shrimp in several parts of Asia including India (Inouye et al., 1996).
It inhabits fast flowing streams and rivers, but can tolerate high levels of salinity. Spawning occurs in marginal areas of the water bodies with a depth of 50 to over a sand or clay substrate. A 6 kg female can lay a million eggs. This fish has a rapid growth rate; by the age of two individuals can reach a length of 60 cm and can weigh as much as 2 kg. 2.2.4 Carfu (Cyprinus carpio) Among all the exotic fishes introduced into Bangladesh common carp is the most important fish that is being extensively cultured throughout the country.