Hello to all…
The following book chapterjust being published
Salvadeo C., Lluch-Belda D., Lluch-Cota S. and M. Mercuri (2011). Review of
Long Term Macro-Fauna Movement by Multi-Decadal Warming Trends in the
Northeastern Pacific. Climate Change - Geophysical Foundations and Ecological
Effects, Juan Blanco and Houshang Kheradmand (Ed.), ISBN: 978-953-307-419-1,
Abstract: Worldwide marine ecosystems are continuously responding to changes in
the physical environment at diverse spatial and temporal scales. In addition to
the seasonal cycle, other natural patterns occur at the interannual scale, such
as El Niño-La Niña Southern Oscillation (ENSO) with a period of about three to
seven years. When ocean conditions stay above or below the long-term average
for periods of 10 to 20 years we recognize decadal fluctuations, and those with
periods longer than 50 years are known as regime. In this work we review
published reports on long term macro-fauna (nekton) movements as related to
multi-decadal temperature trends in the Northeastern Pacific. Two well defined
long term climate warming trends were observed in the sea surface temperature
anomalies, these appear to be part of cyclical changes that include cooling
trends over the California Current System. Changes in the sea surface
temperature are indicators of more
complex ocean processes related to alterations in oceanic and atmospheric
circulations, which ultimately affect the enrichment of superficial waters. The
biological responses to those ocean processes are complex and not well
understood. There are evidences which indicate that distribution shifts related
to long term ocean warming had occurred for some species, including poleward
shifts (gray whale and Pacific white-sided dolphin), range expansions
(California sardine and jumbo squid) and redistribution (sperm whale).
Make all requests to: [email protected]
If you want to download the entire book:
http://www.intechopen.com/books/show/title/climate-change-geophysical-foundations-and-ecological-effects
Greetings
Christian Salvadeo
CICIMAR-IPN
La Paz, B.C.S.
México
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