This workshop stressed that the concept of reference points (RPs) needs to be closely connected to the management objective of concerned fisheries, taking into account various parameters such as maximum sustainable yield, economic and social benchmark and environment concern. Participants stressed the need to define different RPs for each dimension of management or to identify a single RP aimed at ensuring the sustainability of the system, thereby no longer limited to biological aspects. A review of possible approaches to setting RPs and indicators for Black Sea fisheries emphasized the dynamic nature of recent ecosystem changes. The traffic light approach was illustrated as a means of following dynamic changes and gaining a broad perspective on events at the ecosystem level. The workshop outlined the main RPs obtained by applying the bio-economic optimization models of effort and effort-catch as derived from the theory of population dynamics.Rome, 20-21 April 2004 Giuseppe Lembo, General Fisheries Commission for the Mediterranean (Food and Agriculture ... Table 2 Empirical approaches to deciding on reference points One school of thought (e.g. Gilbert et al, 2000; Seijo and Caddy, ... aquot;Top downaquot; effects become only evident higher in the food pyramid .
|Title||:||Selected Papers Presented at the Workshop on Biological Reference Points|
|Author||:||Giuseppe Lembo, General Fisheries Commission for the Mediterranean (Food and Agriculture Organization of the United Nations)|
|Publisher||:||Food & Agriculture Org. - 2006|