FOOD TECHNOLOGY

FOOD WASTE REDUCTION AND SUSTAINABILITY

FOOD WASTE REDUCTION STRATEGIES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is though to be causing the decline of BC wild salmon?
A
warm waters
B
overfishing
C
predation
D
aquaculture
Explanation: 

Detailed explanation-1: -Urban development and natural resource extraction has caused the loss of many prime salmon spawning habitats. The destruction of rivers and streams due to logging activities and hydropower dams block the salmons’ migratory path.

Detailed explanation-2: -Overfishing, habitat alteration, pollution, dams, and other human-caused impacts have decimated salmon populations throughout the Columbia Basin. There are 14 dams on the mainstem of the Columbia River and over 450 dams throughout the entire Columbia Basin.

Detailed explanation-3: -Biodiversity Loss. Chemicals and excess nutrients from food and feces associated with salmon farms can disturb the flora and fauna on the ocean bottom.

Detailed explanation-4: -Threats. Threats to wild Pacific salmon include illegal harvest (poaching), habitat destruction from development and mining activities, dams and other blockages in rivers, unregulated overharvesting, and a rapidly changing climate.

Detailed explanation-5: -Historically, dams, overfishing, and pollution led to large declines in salmon abundance.

There is 1 question to complete.