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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
World-wide fluctuations of sardine and anchovy stocks: The regime problem
South African Journal of Marine Science, Volume 8, No. 1, Year 1989
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Description
Summed differences between the highest and lowest catches of two clupeoid taxa, sardines Sardinops spp. and Sardina pilchardus and anchovies Engraulis spp., in five regions where they co-occur are in excess of 29 million tons. Both taxa show large expansions and contractions of range with changes in abundance. Populations of sardines also shift alongshore, possibly in response to climate change. At time-scales of several decades, fluctuations in catches of sardines and anchovies are seemingly dominated by long-term environmental variations which cause large and prolonged changes in abundance and give rise to “regimes” of sardine or anchovy. These long-term fluctuations are probably associated with persistent environmental changes of oceanic to global scale, there being coherence of trends in various sardine stocks on an oceanic scale and similarities between these changes and global, hemispheric and oceanic indices of the environment. © 1989 Taylor & Francis Group, LLC.
Authors & Co-Authors
Lluch-Belda, Daniel
Mexico, La Paz
Centro de Investigaciones Biologicas Del Noroeste
Crawford, Robert J.M.
South Africa, Cape Town
Marine and Coastal Management
Kawasaki, T.
Japan, Sendai
Tohoku University
MacCall, A. D.
United States, Washington, D.c.
National Oceanic and Atmospheric Administration
Parrish, Richard H.
United States, Washington, D.c.
National Oceanic and Atmospheric Administration
Schwartzlose, R. A.
Mexico, La Paz
Centro de Investigaciones Biologicas Del Noroeste
United States, La Jolla
Scripps Institution of Oceanography
Smith, P. E.
United States, Washington, D.c.
National Oceanic and Atmospheric Administration
Statistics
Citations: 460
Authors: 7
Affiliations: 5
Identifiers
Doi:
10.2989/02577618909504561
ISSN:
02577615
Research Areas
Environmental