According to information I got from Ocean Wise, Sockeye Salmon is mostly wild, and we should avoid catching Gillnet, Purse Seine and Troll varieties in the US, Washington, Oregon and California regions. In these areas, hatchery fish are mixed with wild salmon populations and are likely to capture natural salmon that are classified as endangered species. Therefore, in order to prevent the extinction of endangered species in the area, these fish should be resisted.
When fish are farmed, the fish is very dense, so the growth environment is not good and the fish is prone to illness. And because of the limited space available, excreta does not disperse in time, so nearly a quarter of fish can quickly spread fish disease. These fish are cultured in the process of interacting with wild fish, spreading the disease to wild species, infecting most of the wild fish and killing them. If this continues, it may kill all our fish: farmed and wild, so I think farmed fish are not sustainable.
The advantage of farmed fish is that it provides a guaranteed “harvest” for fish farmers and they can control the variety and yield obtained, thus reducing the price of fish. I think that the way to make the aquaculture sustainable is to raise the fish to the young age and then stock it in nature so that the fish can be more dispersed, the likelihood of disease is greatly reduced, and it will be more natural. When the fish is back, the fishermen can catch them with the big net, so that we can put more fish back into the ecosystem, which can effectively avoid the occurrence and spread of fish diseases.
Made by: Lina,Iris,Grace
– Efficient for harvesting and replanting trees
– Financially sound
– Increased water flow
– Increased farm land
– Less expensive
– Easy and efficient operations
– Avoided damage to regeneration
– Allows ecosystems to support more wildlife than clear cutting
– Allows forests to retain resistance to disease and pests.
– Reduced ecological damage
– Negative impacts on nature, wildlife, habitats and plant loss.
– Loss of 1000 year old forests.
– Exposure to erosion
– Takes away habitats for many animals
– Takes away strong trees in the forest leaving the weaker trees.
– Difficult regrowth
– Harmful to other trees
Clearcutting is financially efficient, giving consistent and high rates of return for companies, provides more farmland for it cuts down all trees in an area, giving farmers more job opportunities. Although this practice has a significant and harmful effect on plants and wildlife in a region. The most significant impact is the destruction of plant life and animal habitat. Impacts on the food chain can cause loss of species and threats to ecosystems. The forest sector has long been a cornerstone of economic activity and continues to be the foundation of B.C.′s economy. Although its significance has declined as the economy has matured and diversified over the past few decades, the forest remains important. In 2018, the forest sector was responsible for 32% ($14.9 billion) of B.C.’s total exports； the sector is the primary employer in many parts of the province. Forestry-related activities directly support over 7,000 businesses and employ more than 50,000 people. That data proves that the BC forestry industry is relatively sustainable. However, sustainability for the forestry industry would mean ‘balance’, to balance out the economy and the environment. If we try to maintain the environment and the economy, it will be difficult to balance. Economic sustainability can mean destroyed forests, but the sustainability of ecosystems will affect manufacturers and trade with different countries.
I think the forestry industry in BC is sustainable. The government is also deforesting and rebuilding trees. Although it takes time, it can ensure a certain balance. If we accelerate the deforestation, the reconstruction and regeneration of trees cannot keep up with the rate of deforestation, then it is likely that the forestry industry will become unsustainable.