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Although the No-Take Zones in this proposal are intended to primarily target entire ecosystems, we acknowledge that there are biological or economic situations in which a certain organism species is of particular importance. In such cases, an a thorough understanding of the relevant biology and ecology is critically important. For For example, a very mobile fish population would have a faster biomass exchange rate through a Marine Reservemarine reserve, rendering it less effective than it would be for a less mobile species. As such, no-take zones are best placed along the axis of movement for given populations. This configuration maximizes the time the fish will remain within the reserve and hence the protective effect. (Watson, Alder, Walters, 2000)
Further difficulties arise when marine reserves are used to protect highly migratory species. It would be inefficient and controversial to try to place a reserve over the entire migration path of a population. One possibility is a configuration that targets key life states and/or migratory routes of the target species (Robichaud & Rose 2004). A land-based analogy is the protection of bird nesting sites and reserves for migratory birds, respectively. Another option is the implementation of dynamic protected areas. By continuously tracking indicators of fish population, such as ocean fronts, the boundaries can be changed to follow populations. With However, we do acknowledge that an ever - changing boundary , however, confusion as to the exact location of the MPA can arisecan give rise to significant confusion. (Hyrenbach, Worm, Fonteneau, Gilman, 2007)
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