A review of zooplankton studies conducted in Peruvian marine waters is given. After a short
history of the development of zooplankton research off Peru, we review zooplankton …

The low oxygen concentration (< 2 ml L-1) at relatively shallow depths (< 100 m) in the
coastal upwelling zone and in the adjacent oceanic area is a distinct feature of the eastern …

Abstract Ecopath with Ecosim (EwE) models are easier to construct and use compared to
most other ecosystem modelling techniques and are therefore more widely used by more …

The mean trophic level of the species groups reported in Food and Agricultural Organization
global fisheries statistics declined from 1950 to 1994. This reflects a gradual transition in …

The software described in the present guide is designed to help you construct a (simple or
complex) model of the trophic flows in an ecosystem. Once the model is constructed you will …

An attempt is made to rank 41 steady-state models of aquatic ecosystems on the basis of
their maturity. Maturity is quantified using several of Odum's attributes of ecosystem maturity …

Keystones are defined as relatively low biomass species with a structuring role in their food
webs. Thus, identifying keystone species in a given ecosystem may be formulated as:(1) …

We performed a global assessment of how fish biomass has changed over the last 100 yr,
applying a previously developed methodology using ecological modeling. Our assessment …

Page 1 Trophic Interactions in Caribbean Coral Reefs Silvia Opitz A IOLARM INTERNATIONAL
CENTER FOR LIVING AQUATIC RESOURCES MANAGEMENT + Page 2 ENTERED IN NAGA …

The Caeté Estuary lies within the world's second largest mangrove region, 200km south-
east of the Amazon delta. It has an extension of about 220km2and is subjected to a …