Essay On Lionfish

Crawfish are delicious crustaceans that closely resemble lobsters. Many people consider crawfish to be as delicious as lobsters, which is why these crustaceans are harvested all over the world. In the U.S., crawfish are closely associated with the haute cuisine and culture of Louisiana. In fact, crawfish are the official crustacean of the state. I normally prefer to harvest or purchase crawfish on the day I intend to cook them. However, many people prefer to purchase and eat them later but do not know how to keep crawfish alive in a sack or container for several days before finally preparing and eating them. Fortunately, I will provide you with some tips on how I keep my crawfish fresh and healthy

In the truth revealing documentary “Blackfish”, the film reveals what these killer whales in entertainment parks such as SeaWorld go through, along with the trainers who work with them. The documentary shows clips and pictures of the killer whales mauling the trainers, and whales fighting each other resulting in

Experts are not quite sure how these fish got to the Atlantic. They hypothesize that people have dumped their unwanted Lion Fish in the Atlantic Ocean for up to 25 years. Since these fish are not native to the Atlantic waters they have very few predators. Lion Fish have a negative effect on native fish populations. The Florida Fish and Wildlife Conservation Commission celebrated a day for the removal of Lion Fish. Over 1,000 Lion Fish were removed this day.

Temperature had a direct effect on oxygen consumption of crayfish, Orconectes propinquus. Crayfish acclimated to warm temperature (20 to 25 C) had a mean mass of 8.25g +/- 1.05. Crayfish acclimated to cold temperature (3 to 5 C) had a mean mass of 10.61g +/- 0.77. Oxygen consumption rates of 30-60 minute treatments were used and there was no significant difference between the two different treatments (t=0.48, df=58, P=0.70). The data from 0-30 minutes were not used because the crayfish were disrupted by transportation and the data were not normally distributed. The Q10 value was 1.05, representing that there was full compensation for oxygen consumption for the crayfish at two different acclimated temperatures. The oxygen consumption of crayfish was not affected significantly by two different temperatures (Figure 1).

Blackfish was released on the 19th of July 2013 in New York. Gabriela Cowperthwaite’s award-winning documentary is about a captive killer whale that has taken the lives of several people. This documentary explores the different stories of Tilikum’s attacks and the reasons for why these accidents are occurring in the sea park industry.

Blackfish, a documentary by Gabriela Cowperthwaite, analyzes the horrific treatment, containment, and use of Orca whales within entertainment facilities. The discussion of treatment began in 2010, when Dawn Brancheau was killed and drowned by the whale, Tilikum. Since this incident, there have been multiple investigations into SeaWorld and similar facilities. It is argued that the whales should be released from these facilities due to the posed dangers they have to humans, and themselves.

How the Lionfish was introduced is not clear, but it is speculated that either through aquarium trade and thoughtless fish owners releasing the fish, or from the ballast water from foreign ships, that the Lionfish has been introduced (National Park Service. “Lionfish”). Over the years Lionfish have had quite a negative effect on the ecosystems it

California Sea Lions are found off the west coast primarily in the Channel Islands off the California coast. Males can reach up to 850 pounds,

The article, “Eat the invaders: Conservation hunters” describes how many environments in both the U.S and the world need more people to eat certain invasive species such as lionfish. To begin with, the text says, “Lionfish can reduce native species populations by 90% within weeks of arrival,...” The U.S has been experiencing major problems from lionfish such as the reduction of many important fish such as the ones that eat algae that damages corals. Also, the author states, “The National Oceanic and Atmospheric Administration (NOAA) has led a campaign to put lionfish on menus, encouraging fishermen and traders to participate.” If more people begin eating lionfish and other edible invasive species, then the population can become controlled.

Although the first three stages of an invasion are important to understanding the invader, the impact stage of invasion is more important because it includes all the effects an invader has on the invaded ecosystem. For the rusty crayfish, Orconectes rusticus, the impacts it has on an invaded area are a result of its natural behavior (McCarthy et al. 2006). Although this behavior is similar to native crayfish, the rusty crayfish is faster and more resilient than any other native crayfish (Kuhlmann 2008). As a result, the rusty crayfish not only outcompete other native crayfish, but also extensively preys on species that are used to the more passive and slower native crayfish (McCarthy et al. 2006). The impacts of the rusty crayfish on new environments include the direct and indirect effects of decreases in local populations, and hybridization with native crayfish species due to its ability to outcompete native crayfish.

Majestic, noble, and brave, this famous iconic wild animal on the planet has captivated the people since the beginning of time. They are most feared by other animals thus, known as the king of the jungle – no other than the lions. Member of the genus Panthera, the lion is one of the big cats in the Felidae family. A lion’s head and body size average about 4.5 to 6.5 feet and tail of about 26 to 40 inches in length. A lion also weighs about 265 up to 420 pounds and a size relative to a 6-foot human. These mammals are also carnivores. Lions have always seen hunting in groups called pride. While lions generally avoid a full-grown elephant, lions still prefer their preys large like the zebras, buffaloes, and giraffes. Poised as the top animal in the ecological pyramid, lions have strong physical qualities, fascinating reputation, and an unfortunate decreasing number of population.

Additionally, the Lionfish is a marine poison fish, that is a nocturnal predators within its habitat. It is a distinct invasor and possess red, brown, and white zebra-like

Many breeds of fish are being captured at a faster rate than they can reproduce. Some species such as orange roughy fishing became popular in New Zealand in the 1970’s. Over time, it spread to many countries around the world. In the last 20 years, there has been a decline in catch up to 75%. It is no longer common to see in grocery stores as well as restaurants. The amounts of fish that are captured and distributed around the world are alarming opposed to the rate the fish can multiply.

They are not known to be an aggressive species towards humans, but do raise cautiousness to marine life. This is because lionfish can imbalance the population of coral reefs by consuming the many species that live in them, making them one of the top predators in their environment. Deep see divers go underwater and hunt lionfish in their environment to control the imbalance. They take a spear that shoots out from a safe distance so divers will not get stung by them. This helps control the population on either side of spectrum, predator or prey. They are not as bad as they seem, some individual’s love to eat them!

According to Florida Fish and Wildlife Conservation Commission, “Lionfish have 18 venomous spines that should be avoided during capture and handling because they can cause painful injuries. “Thirteen long venomous spines are found on top of the dorsal fin which are also located on top of the fish 's spine. Two short venomous spines are located on the pelvic fins (one on each side), which is located on the bottom of the fish closest to the fish 's head. Three other venomous spines are found along “the front edge of the anal fin which is located on the bottom of the fish nearest the tail.” (Effects of Lionfish). The large pectoral fins and other fins not mention do not have venomous spines. Each spine is contained and covered with a skin-like tissue. During a sting, the skin-like covering is peeled back showing the spiny venomous stinger and is inserted into the attacking enemy. This allows direct