Effects of ENSO 1997–1998 on the distribution of small pelagic fish off the west coast of Baja California Online publication date: Thu, 05-Jun-2008
by Jesus Antonio Rojas-Mendez, Carlos J. Robinson Mendoza
International Journal of Environment and Health (IJENVH), Vol. 2, No. 1, 2008
Abstract: Changes in the Small Pelagic Fish (SPF) densities and distribution during ENSO 1997–1998 were found from observations made between 1994 and 2001 along the northwestern coast of Baja California, Mexico. Results showed that temperature and variables associated with the surface mixing processes had an effect on the SPF shoal behaviour and distribution. Between September and December 1997, acoustic density showed maxima that were accentuated in the neritic and slope zones and with a wide depth interval. The results suggest that in the presence of climate anomalies like ENSO 1997–1998, SPF are concentrated in specific areas not influenced directly by these anomalies and therefore available to fishing in considerable abundance and vulnerable to a high fishing scheme. Our recommendation for SPF-fishery management is to regulate the fishing during these anomalously warm periods. Finally, it is important to investigate more about fishing scenarios during climate anomalies to contribute to an improved concept for a sustainable fishery.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Environment and Health (IJENVH):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com