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Ocean sunfish biology
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The Ocean Sunfish or Mola mola is an interesting species. Female sunfish usually lay somewhere around 300,000,000 eggs at a time, which is more eggs than any living vertebrate, though only a few of those eggs ever hatch. A sunfish fry resembles a tiny pufferfish because of its small spines it has around it, which later disappear in adulthood. Sunfish colours vary from a light-ish brown to bright silver. There may be certain patterns on the skin, however this is pretty rare. Sunfish diet consists of mostly jellyfish or squid, though this can vary depending mostly on the size. A group of sunfish is called a school, however the sunfish usually only travels alone or with one other person.
Mola have only recently been pushed over the edge of “threatened,”
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They are inhabited by over forty different species of parasites which can cause many things, most notably irritation on the skin. They have many ways of tackling the problem, but they are risky to the fish’s health and may actually kill them if performed incorrectly. For example, they will leap out of the water and try to land straight to brush them off, but if they come down at an angle, they often collide with the water’s surface and die. Sometimes they bask in the sunlight on the surface of the water; flipping over periodically to bake the parasites off, so to speak. However, often, they fall asleep on the surface and dry up on land or get speared by bird talons. These are just a few examples of how they react to …show more content…
They have some of the most interesting ways of dying. In addition to the aforementioned leaping out of the water and sunlight, sometimes, while chasing down food, they will collide with a rock due to not being able to make sharp turns like most vertebrates can. Other times while chasing food, they will swim down way too far and freeze due to the intense cold on the ocean water. On the subject of food, sometimes they have too many squid. Their stomachs are very sensitive, so if they overdo it on any food, typically squid, they die. Sometimes they’ll mistake plastic bags for jellyfish, causing choking. Often, when they eat shrimp, sardines or small crabs, the shells, bones or claws will get stuck in their gullets, causing them to choke. Sometimes, upon seeing something like a sea turtle or anything that’s a lot bigger than it (which is rare considering how large sunfish are) it is frightened, forgets how to breathe, and dies. Though having the name “sunfish,” they are quite sensitive to the sun, if they bask for too long of come up to the surface too fast, they die. Sunfish aren’t often kept in captivity, but when foam or some other substance comes into contact with one’s eyes, it gets stressed out and dies. They have bad eyesight, especially when they stray away from any light (such as bioluminescent beings underwater or lights of
T. californicus is found from Alaska to Baja in small, shallow tidepools and tidal flats in the upper spray zone where they cannot avoid the full effect of visible and ultraviolet (UV) radiation. Individuals assemble in areas of lower radiation at midday, yet have no preference to the intensity of light at dawn and dusk (Hartline and Macmillan 1995). These tiny arthropods inhabit all types of marine sediments from sand to fine mud and ooze. Along with plankton, T. californicus eats microscopic algae, protists, bacteria, diatoms, algae and microbes (McGroarty 1958). When the concentrations of the species in their habitats are high, T. californicus will turn to cannibalism for a food source. The nautilus eye present in the species is rich with fatty acids and provides a good food source for the animal.
... mm long and 3–7 mm wide. After the fish's tongue is destroyed, the parasite attaches itself to the stub of the old tongue, and becomes the fish's new tongue.
...ost completely degraded. Some dive deep into the water, like a lionfish, bream, viviparous fishes of the family Scorpaenidae and Lake Baikal in some species can dive to 1000 ~ 4000 meters deep, some often floating in the upper, such as six line fish, and Lake Baikal fishes of the family. The fishes swimming are relatively slow, often hidden, not activities or bury the body in the sand, and the type of six line fish families peace Marmora subfamily is good at swimming. The benthic invertebrates and small swimming creatures for food, Scorpaena peeling phenomenon of periodic feeding, more intense, more times, peeling, sometimes even 1 months dulling 2 times. The reproductive season in spring and early summer, six line fish, and some cottidae in the autumn or early winter reproductive, lion fish, fish and Lake Baikal, some species in late winter or early spring spawning.
With hunters, weather changes, other sea creatures, and even being close to populated areas, Narwhals face greater chances of being harmed or killed. There are other factors like contaminants in the waters or the commercial fishi...
...ank you have to make sure that the right temperature stays in the tank because if the water gets to hot they wont really have a place to go too, so they could end up over heating and could die. It is also important to have the right type of food for them as well. They like to eat worms, squid, and sometimes other fish.
Killer whales are one of the most fascinating displays of ocean life. The killer whale has characteristics that are important to its survival in the ocean. It is interesting to know that killer whales have a plentiful diet. It is astounding to see how killer whales behave in the ocean. I plan to tell you about the killer whale, its characteristics, its diet, and its behavior in the ocean as well as the predation of the orca.
...legal fishing, caught in fishing nets, collisions with boats and or propellers, and marine pollution. The subsequent captivity of dolphins in research and aquarium facilities contributes to their deaths.
The Black carp originated in many of the Pacific drainage areas of eastern Asia, China, and parts of Russia and Vietnam. Black carp was introduced to the United States in the 1970’s to fish hatcheries and to control the populations of disease carrying snails in ponds. Flooding is the main factor to thank for the release of the black carp, which quickly turned into an invasion of the waterways. The Black carp is a medium size fish with the opportunity to become an extremely large fish if the conditions are favorable. “Based on Asian records, large adults may be more than 1.5 m total length and 70 kg or more in weight”(Nico,L.G). The black and grass carp is close to identical in regard to the characteristics of one another. However, the black carp is a slightly lighter color of black, with extremely large scales on the entire body. A black carp has human like molars as teeth that are used to crush snails and mollusks. With a slightly pointed snout that is a likely adaptation used to filter through the bottom of water bodies in search of food. The physical build of a black carp exhibits the design of a bottom-dwelling feeder. Sporting a long snout, large powerful human molar like teeth the black carp is built to succeed in water full of snails and mollusks. This means that the populations of already near extinct native snails and mollusks are at great risk of being
British Columbia is the fourth largest aquaculture producer in the world. The province and everywhere else that loves seafood relies on the production of aquaculture. However, many do not know what they get when the glory of farming fish comes with. Salmon is one the most common fish and British Columbia wanted to make sure that who ever wanted it could get tons of it. While global warming has been driving wild salmon stocks up north, British Columbia came up with their own solution, Aquaculture. It was the perfect thing due to the fact, British Columbia has 20,000km of coastlines and 25,000 lakes and many rives and streams to raise fish. This became an advantage to fish farmers and aquaculture heads because the plentiful water allowed them to raise wish in any body of water. The economic benefits came pouring in as fish farmer could grow many fish all year round and have control of it. The salmon in these farms are raised in pens, just like you would see animals on a farm on land. B.C’s fairly clean waters, sparse population and accessibility to roads makes it well suitable for the fish to be raised from hatchlings to harvest. The net pens that held the salmon year round were limited to small spaces, developing some major issues in the ocean’s health and human health. Many have blamed farmed salmon for the sea lice. Sea lice have been depleting lives of many wild salmon as farmed salmon are allowed to escape from their nets into the ocean. Allowing the possible spread of sea lice. Sea lice are crustacean parasites that attach onto both farmed and wild salmon. These parasites do not kill the fish, however they drain the resources the fish need to survive and decrease their ability of swimming. The sea lice also create open abrasio...
Though food is everlasting in both the coral reef and deep sea, space is very limited. Organisms in both habitats have to compete for space and survival, having defense mechanisms to keep other species from killing out their kind. Some fishes in the coral reef hide in cracks and crevices along the rocks and corals to hide from their predators. Other fishes camouflage within the brightly colored corals to hide from predators, or even humans looking into their tank. The deep sea holds many small fish, but with large mouths. The large mouths and pointy teeth help the miniscule fish eat their prey, whi...
they find their food by their surroundings and sifting the sand of filtering the water. the bulk of their diet is composed algae and plankton matter. The big evolutionary change helped the shrimp defend itself, time before the change there wasn’t this many shrimp in the ocean most people eat shrimp and can cause a decrease in shrimp, progress has been showed since this great evolutionary change, there are some effects on the species such as not being able to see where it’s going and can sometimes get in to traps and trash in the
Many of the methods used in commercial fishing are very destructive to the aquatic systems. Industrial ocean trawlers scrape the bottom of the water, often dragging up the seafloor with them. This destroys the habitat and kills many of the bottom dwelling organisms that are vulnerable to these practices. There is also a large amount of marine animals that are unintentionally caught by the large nets. These animals are considered bycatch, having no value to fishermen and are usually killed. These large fishing vessels also add a significant amount of pollution to the water. Fishing vessels cause oil spills as well as discharging chemical elements and wastes into the water. The thousands of of trawlers that pass through Japanese waters create large quantities of water pollution that can devastate aquatic life by changing the chemical composition of the water and affecting all the organisms that inhabit these
• You need to know that fish has senses. They can hear, taste, see, and smell. They have lateral line which helps them to detect movement in water. When they are in danger, they can run away. You will really have to watch your movements because you do not want to go away with empty hands.
The class Scyphozoa has about 200 species of jellies, with a wide distribution. “True Jellyfish” have a diverse range of habitats; we can find them in salty estuaries, bays; the pelagic zone of the ocean and the abyssal depths of the ocean. Pelagic Cnidarians are found in the pelagic zone of the ocean. The term “Pelagic” literally defines to, open ocean. Scyphozoan jellyfish are keystone species, being a primary and important predator within their marine ecosystems. They have been a key species in their ecosystems throughout the Phanerozoic Period and also since the middle of the Cambrian Period, which is when fossils of major animal groups first appeared. (Hagadorn et al. 2002; Cartwright et al. 2007; Hagadorn and Belt 2008 cited by Dawson) An ancient origin of the aggregated phenomenon of scyphomedusae as been retrieved from marine fossil deposits dating back to the late Cambrian period Hagadorn et al. 2002 cited by Dawson). Scyphozoans have become more commonly criticized as an ”annoying” species, forming countless problems worldwide. Aggregations and swarms of Scyphozoan jellyfish can negatively affect important aquacultures and injure swimming bystanders. (Reword******They are also known as an invasive species clogging the water intakes of power plants, due to the high concentration of nitrate located in the waters surrounding the plant, thus adversely impacting the human lifestyle further (reword). On top of it, jellyfish also trigger poor oxygen conditions within certain waters where synchronously is the same areas that contain high counts of jellyfish carcasses are deposited***** Reword) (Arai 1997; Mills 2001; Hay 2006; Graham and Bayha 2007; Purcell et al. 2007; Pitt et al. 2009; Richardson et al. 2009; West et al. 2...