The Global Catch Of Shrimp Species

Brine shrimp have survived successfully since the Triassic period, around 200 million years this has been possible through their unique adaptations which have enabled them to avoid predators and suit their environment. They are pretty good at surviving except in space (who knew radiation isn’t good for shrimp). One of the best adaptations the brine shrimp have is their ability to survive in waters of very high salinity (up to 25%). There optimal levels of salinity are 3-3.5% but they are rarely found in waters below 6-8% salinity for the same reason this adaptation is so good, no predators occupy waters with this level of salinity. With this adaptation they are protected from much predation and have very few predators except for birds. Another reason there environment is good for their survival is that it is so widespread. Salt water lakes are found all over the world.

Brine Shrimp are a micro-crustacean that is found mostly in inland saltwater bodies, however, the salinity levels that they live in vary greatly. The conditions that they require can be made at home as the eggs (cysts) of the shrimp are dry, hard shells that can withstand drought and go without water for up to 50 years. This study presents the results of 3 different salinity levelled environments to the Brine shrimp in order to discover a salinity level that produces the most successful hatching rate. By filling 3 Petri dishes with 20mL’s of purified water, each dish contained varying sodium chloride amounts from 15ppt, 25ppt, and

Reaching a length of up to 5.5 centimeters (or about 2 inches), the bigclaw snapping shrimp is the largest member of the family Alpheidae, which are also known as the pistol shrimp. It is found in water up to 30 meters (98 feet) deep from as far north as North Carolina’s Outer Banks to the Brazilian coast. It also is able to survive in areas of rapidly different salinity; A. heterochaelis has be found in environments that range from mesohaline (having a salinity of 5 to 18 parts per thousand) to hyperhaline (having a salinity of 40+ ppt). This means that it lives in environments that range from brackish to seawater of above average salinity. It is most commonly found in areas where cover can be easily found during the day, such as an oyster reef.

The earliest accounts of overfishing occurred in the 1800s, when the demand of whale blubber nearly wiped out the whale populations. In the mid 1900s, the harvesting of Atlantic cod, herring, and California sardines drove them to the brink of extinction. These high disruptions cause regional depletions of animal resources which is starting to cause a global problem. There has never been a more urgent time for fishing nations to make a commitment towards the sustainability of our oceans. More than 80% of the world’s fisheries have been, or are being pushed beyond their limits and are in dire need of strict management plans. Populations of fish and elasmobranch fish such as tuna, grouper and sharks have been declining to the point where the survival

Our end results only supported to some extent our hypothesis that increasing numbers of brine shrimp would directly cause decreases in algae concentration. Our hypothesis, if applied to only the jars of 3 and 6 brine shrimp, would be highly supported, due to the significant difference in algae concentrations. Evidently, the more shrimp that were present in the ecosystem, the less algae that were available at the end. In an ecosystem with more consumers, the consumers demand a higher amount of nutrients from the environment, or more specifically, the producers. And as the consumers develop and grow, those demands also grow. And thus, when we increased the amount of brine shrimp, more algae were consumed per unit time. Though the rate of consumption from the brine shrimp did not exceed the rate of growth of the algae in any jar, the

“They see something, walk up to it, pick it up, and maybe beat the crap out of it,” says Justin Marshall, referring to a commonly unknown creature called the Mantis Shrimp. This species often goes overlooked and unnoticed by most of the world and not just because it only grows 2-7 inches (“Peacock Mantis Shrimp” 1). Since it is such an unknown animal, many people do not know what it is or what makes it remarkable. How can the small mantis shrimp, a crustacean whose appearance is more like that of a clown than a ferocious beast, be worth noting in the different fields of science? They are more interesting than they seem. Mantis shrimp possess a vast array of fascinating physical features that set them apart from other sea-dwelling animals: their clubs

The killer shrimp is a combination of shrimp and a pray mantis. They are dangerous and have incredible abilities, having an incredible strength compared to their size. They got powerful appendages that can be used for hunting or for self protection. The mantis shrimp is a territorial animal, and the individuals of that specie usually fight for shelters. Their appendages work like hammers, what provides a strong impact force.

The last things that have some effect on the shrimp habitat is the weather. For the last two to three years we have been in a drought. This can also cause the stream or creek to been dry up or low on water. When the stream dry up can cause the whole habitat to an end. Also when we in a drought with little to no rain the shrimp can’t survive due to the water is not moving from other end of the stream. The water is not moving then the shrimp doesn’t have a lot of food source to eat.

According to a study done by Living Planet Report in 2015, 29% of the world’s fishing stocks are considered overfished and an additional 61% is fully exploited with no possibility to produce more fish. Our environment is currently afflicted by a number of different problems, one of which is overfishing. Overfishing is defined by FishOnline as, “Fishing with a sufficiently high intensity to reduce the breeding stock levels to such an extent that they will no longer support a sufficient quantity of fish for sport or commercial harvest.” The overfishing situation is being exacerbated by non-sustainable and destructive fishing practices and unfair fisheries partnership agreements; while there are currently attempts being made at fixing these problems and their effects on overfishing, nothing has been extremely effective.

This issue of overfishing covers vast fields, such as science, humanity, economy, society and nature. The term “optimum”, in regard to the yield from a fishery, is difficult to be defined, precisely and fixedly. Generally speaking, we can describe it as follows: (Niles E. Stople, January 2009, FishNet USA)

Delgado, C. L., Wada, N., Rosegrant, M. W., Meijer, S., & Ahmed, M. (2003). Fish to 2020: supply and demand in changing global markets. Retrieved from http://www.ifpri.org/sites/default/files/pubs/pubs/books/fish2020/oc44.pdf

The main causes of overfishing are poor fishery management with a lack of regulation, unrestricted access to the ocean and illegal fishing. During the last few decades the demand for edible seafood globally has skyrocketed and the high demand is causing us to overfish to keep up with the demand. Unfortunately, fisherman are catching more fish than can be naturally reproduced. There are only limited regulations in place, which means that fishing companies are basically fishing when and where they want to with out any oversite. Overfishing causes such serious effects such as the ocean life getting knocked out of balance. Coastal communities rely on the benefits of the fishing for social and economic health. When we overfish it

Walmart has a large retail seafood business and it is always a challenge to reduce cost and promote sustainability. With upward trend for the demand of sea-food, depletion of the seafood supply is inevitable unless Walmart have a deep engagement of their supply chain. One strategy that Walmart wants to promote to their suppliers is for all of them to take up the Marine Stewardship Council’s certification program. This process will be time consuming, expensive and complex. The depletion of some fish poses a threat to Walmart and its seafood supply chain.

In order for there to be plenty of fish in the years ahead, fisheries will have to develop sustainable fisheries and some will have to close. Due to the constant increase in the human population, the oceans have been overfished with a resulting decline of fish crucial to the economy and communities of the world. The control of the world's fisheries is a controversial subject, as they cannot produce enough to satisfy the demand, especially when there aren't enough fish left to breed in healthy ecosystems. Scientists are often in the role of fisheries managers and must regulate the amount of fishing in the oceans, a position not popular with those who have to make a living fishing ever decreasing populations.

According to the United Nations, 17% of fish stocks worldwide are currently overexploited; 52% are fully exploited; and 7% are depleted. This means that only an estimated 20% of worldwide fish stocks are not already at or above their capacity(Seafarms, 2013). Catches of Pacific herring have decreased by 71% since the 1960s, with Atlantic herring catches falling by 63%. Atlantic Cod catches have fallen by 69% in the same time(Seafarms, 2013). These are just a few of many facts and statistics on the topic of overfishing. The effects of these statistics and facts impact people’s and animal's lives around the