Aquaculture

1) Pacific Salmon Life Cycle a) As it stands, man-made dams disrupt the complex and specific life cycle of the Pacific salmon. Dams impact and affect the pivotal reproduction of the salmon species by causing a disturbance in the pattern of migration during the reproductive season. The Pacific salmon goes through two miracles in its lifetime of transformations of changing its entire system to go form fresh water to salt water. The miracles of the fish bodies adapting to the change in environment…

5. Substrate and aquarium live rock: You need to know which substrate is best for your fish tank. There are different kinds and if you get the incorrect kind, you might finish up slaughtering your fish. Live rock is also important; it acts both as a filter and a source of nourishment for the fish. Both substrate and live rock are an important part of you saltwater fish supplies for their classy value in the tank as well. 6. Sea salts: You are keeping a saltwater aquarium you definitely need sea…

Zebra mussels are a pervasive, nonnative species that was introduced to America in the 1980’s. Zebra mussels are mollusks that have a striped pattern that is apparent on their shells, and which their names are derived from. Their typical size is akin to the size of a fingernail, but can reach a size of up to 2 inches. The shape of these creatures take on the form of the letter “D”. Due to the recent introduction of zebra mussels to the Americas, and the biology of the mussels themselves, zebra…

Based on the Food and Agriculture Organisation Website, it mentioned that fish is a food of excellent nutritional value, providing high quality protein and a wide variety of vitamins and minerals, including vitamins A and D, phosphorus, magnesium, selenium, and iodine in marine fish. The protein provided by the fish is among the easiest protein to digest. Expert also agree that, even in small quantities, fish can have a significant positive impact in improving the quality of dietary protein by…

Sara salort Watts Humanities 6-7 Native American’s compare and contrast Chinook and Umatilla people have a lot in common and a lot of differences that you might Not know of , let me show you. They have a lot of similarities based off of food.For example,the umatillas main source of food was the Columbia river due to the fact that they couldn't reach the ocean they mostly got salmon,eels, and sturgeon etc. They gathered This food around winter,spring, and fall for the salmon runs.…

In his original findings, John Endler (1978) reported that male guppies in high predator areas tend to have patterns that resemble their environment so they don’t stand out. Guppies with low or no predation, tend to not blend in and are brighter with more and larger spots (Endler, 1978). Endler thought that this could be happening because color patterns are molded by natural selection and sexual selection. Although brighter males are often preferred by the females, they are also more likely to…

Eurasian Minnow (Phoxinus phoxinus) is a 14cm long “Demersal; potamodromous fish that can live up to 11 years. “Originally, minnows were spread because fishermen used them as live bait for catching species like brown trout (Salmo trutta), Arctic charr (Salvelinus alpinus), perch (Perca fluviatilis) and pike (Exos lucius) (Huitfeldt-Kaas 1918). This practice is considered to be the main reason for most introductions throughout the 1900s. However, minnows have also been accidentally introduced in…

The salmon leukemia virus is one that attacks the immune system and slowly causes the fish to die of other causes. This disease prevents the fish from fighting any other disease it might catch and begins to deteriorate the internal organs. Alex Morton began to show her findings that these fish from the Frasier River contained the virus and she was able to trace them back to the farms she soon became ostracized and put on gag order. To protect the interest of the salmon farm industry the…

The 29th Annual International Sportsmen's Exposition is returning to Cal-Expo in Sacramento Jan. 21-2. The show includes everything outdoors: travel, lodges and resorts; fishing and hunting outfitters and guides; fishing and hunting gear; boats and marine accessories; ATV's; 4x4 trucks; RV's and campers; and much more. There will be an off-road vehicle test track and, as always, the Youth Fair, where many free events and giveaways will be available for the youngsters. More information on the…

There is a debate about whether or not people should come into Alaska and mine the land for the resources located below the ground. The situation is not so simple, however, much lies at stake. The relevance this has to economics is not only in the money that could be made from mining the land, but the job opportunities it would produce. Mining is important, but is it more important than nature itself? I for one believe that they should not come in and extensively drill the land for the…