Academic literature on the topic 'Marine animals Cape d'Aguilar'

<em>Abstract.</em> —There is an increasing trend in marine resource management toward the application of feedback-control management procedures. A management procedure is a combination of a method for assessing the resource and an approach for calculating a management measure (usually a catch limit) based on the results of the assessment. A simulation approach is used to compare a variety of management procedures for medium- and long-lived marine resources. The scenarios upon which the simulations are based are representative of four resources, three of which are long lived (school shark <em>Galeorhinus galeus </em> [also known as tope], orange roughy <em>Hoplostethus atlanticus, </em> and bowhead whales <em>Balaena mysticetus</em> ) and one that has fast growth and a medium life span (Cape hake <em>Merluccius capensis</em> ). The majority of the management procedures examined are based on models that explicitly consider the age structure of the population while annual catch limits are based on fixed escapement and constant fishing effort harvest strategies. The results suggest that long-lived species could be managed using management procedures. However, the “best” management procedure is likely to be life history–specific and so the simulation trials used to evaluate candidate management procedures for a given resource need to be tailored to the specific issues for that resource. The constant fishing effort strategies achieved markedly lower levels of interannual variation in catches than the fixed escapement strategies. Therefore if two management procedures are able to achieve the same level of risk, those based on constant fishery effort are generally to be preferred.