European Directory of Marine Environmental Data (EDMED)

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Data set name

Large marine predators, diet, energetics and pollutants in the Azores (1981-92)

Data holding centreUniversity of Azores, Department of Oceanography and Fisheries (IMAR network)
CountryPortugal  Portugal
Time periodFrom 1981 to 1992
Geographical area

Azores region


Metal concentrations in biota


Atomic absorption spectrometers


This study is the first attempt to obtain a detailed analysis of the oceanic food web near a mid-Atlantic island. By studying the diets of a large section of the larger predators, many of which are commercially important pelagic fish, we hope to be able to answer questions as follows: (i) Which species compete for food and what will be the result of overfishing one or another species? (ii) To what extent will changes in the quantity of particular food species affect these predators? (iii) What proportions of the biomass and energy are represented by the different species within the food web of the Azores region? (iv) What are the paths of the flow of energy and heavy metals within the food web?

OriginatorsUniversity of Azores, Department of Oceanography and Fisheries (IMAR network)

Martins, H. R., Clarke, M. R., Reiner, F., and Santos, R.S. (1985) A pygmy sperm whale Kogia breviceps (Blainville, 1838) (Cetacea: Odontoceti) stranded on Faial island, Azores, with notes on cephalopod beaks in stomach. Arquipelago, Serie Ciencias de Natureza 6: 63-70., ; Clarke, M. R., Martins, H. R., and Pascoe, P., (1993) The diet of sperm whales (Physeter macrocephalus) off the Azores. Philosophical Transactions of the Royal Society B: Biological Sciences, 339(1287):67-82.,

OrganisationUniversity of Azores, Department of Oceanography and Fisheries (IMAR network)
AvailabilityNo access
ContactNot supplied (Director of the Department (DOP/UA))

University of Azores, Department of Oceanography and Fisheries (IMAR network)
Rua Prof. Dr. Frederico Machado


Telephone+351 92 22988/22944/23460/22945
Facsimile+351 292292659
Collating centreIHPT, Hydrographic Institute
Local identifier15037023
Global identifier2305
Last revised2009-10-29