New Zealand snapper populations were found to be under the influence of genetic drift, suggesting overfishing was still an issue for them, despite the New Zealand fisheries estimating their total population size to be over 3 million. Which of the following is the best explanation for this observation? A) Pelagic fish, like the New Zealand snapper, often only have a few reproductive individuals, therefore their effective population size is actually much smaller than the total population size. B) Pelagic fish, like the New Zealand snapper, often have an equal sex ratio which affects the number of breeding individuals. C) Pelagic fish, like the New Zealand snapper, often have disassortative mating which affects the number of breeding individuals. D) Pelagic fish, like the New Zealand snapper, often have assortative mating which affects the number of breeding individuals.

The observation that New Zealand snapper populations are experiencing genetic drift, despite the…

Answered: New Zealand snapper populations were…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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New Zealand snapper populations were found to be under the influence of genetic drift, suggesting overfishing was still an issue for them, despite the New Zealand fisheries estimating their total population size to be over 3 million. Which of the following is the best explanation for this observation?

		A) Pelagic fish, like the New Zealand snapper, often only have a few reproductive individuals, therefore their effective population size is actually much smaller than the total population size.
		B) Pelagic fish, like the New Zealand snapper, often have an equal sex ratio which affects the number of breeding individuals.
		C) Pelagic fish, like the New Zealand snapper, often have disassortative mating which affects the number of breeding individuals.
		D) Pelagic fish, like the New Zealand snapper, often have assortative mating which affects the number of breeding individuals.

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