本题目来源于试卷: Aquatic Food Production，类别为 IB环境系统与社会
[单选题]
Outline how aquaculture can wgkvz g(b)4w 6os xjwke3;3e6 impa b*.j0g+xcz6b koqs7lct its surrounding environment.
A. Aquaculture has no negative impacts as it can be controlled well and does not involve the addition of extraneous compounds
B. The use of genetically modified fish can lead to an increase in biodiversity when these fish reproduce with wild species.
C. Aquaculture can include the use of antibiotics and hormones, which can spread through the water and impact other aquatic organisms.
D. Fish feed can accumulate in the system, leading to an increase in phosphates and nitrates that can biomagnify across the food chain.
参考答案: C
本题详细解析:
Aquaculture if not done 3 9 b vu6/8jgoqiia (t2d*e/belzlm:rsustainably, can lead to extensive damage to the external environment as it can involve many harmful practices; therefore option A is not correct. Genetically modified organisms are often used in aquaculture to increase yeu: zqe8/r/a2 ib3dogt9lmvl i *j (6bields, however, these pose the risk of escaping, mating with the wild species and altering the genetic composition of the population. Therefore option B is not correct. Organic fish feed is added to these systems to sustain the organisms, however, the leftover feed can accumulate in the water. This can lead to algal blooms and the eutrophication of the aquatic environments; therefore option D is not correct. To maintain and increase yields, antibiotics and hormones can be applied in aquaculture systems. These can spread through the water and may disrupt the natural ecosystem; therefore option C is correct.
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