World Library  
Flag as Inappropriate
Email this Article
 

Santa Barbara Channel

Looking south-southwest, across the Santa Barbara Channel; the city of Santa Barbara, California is below, and Santa Cruz Island is in the distance.

The Santa Barbara Channel is a portion of the Pacific Ocean which separates the mainland of California from the northern Channel Islands. It is generally south of the city of Santa Barbara, and west of the city of Ventura.

It trends east-west, is approximately 130 kilometres (70 nmi) long and averages about 45 kilometres (24 nmi) across, becoming narrowest at its easternmost extremity where Anacapa Island is about 30 kilometres (16 nmi) from the mainland. During the last ice age, the four northern Channel Islands, including Santa Rosa Island, were conjoined into Santa Rosae, a single island that was only five miles (8 km) off the coast.

The Santa Barbara Channel is considered a scenic location, with the islands visible from the mainland on clear days.

Excursion boats cross the channel, taking visitors to watch whales and visit the islands. In the perpendicular (east-west) direction, huge cargo ships and tankers occupy a major shipping lane on their way to or from the ports of Los Angeles and Long Beach.

The Channel is the location of numerous oil fields, some of which have substantial reserves. These include the Ellwood, Summerland, Carpinteria offshore and Dos Cuadras fields. In 1969, the Dos Cuadras was the point of origin of a major oil spill,[1] which came about when oil spurted at high pressure through faults and cracks around a zone which had recently been drilled for the first time. Public outrage over the massive environmental damage inflicted by this spill, which covered hundreds of square miles of the channel and fouled beaches from Ventura to Goleta, was a major spur to the budding environmental movement. Some oil exploration and production activities continue in the area, in spite of vigorous opposition from local organizations, such as Santa Barbara-based Get Oil Out (GOO).

The Santa Barbara Channel contains the world's largest natural oil seepage - Coal Oil Point. Goleta Point is a nearby extension into the channel.

Contents

  • Prehistory 1
  • Alternate meaning 2
  • Risk of ship-whale collisions 3
  • References 4
  • External links 5

Prehistory

Prior to the Holocene era sea levels were considerably lower, such that the water width separating the mainland was much less. This effect had a significant effect upon biological colonization as well as human transport via plank canoes. As examples, the Native American Chumash peoples navigated these waters with ease using their primitive watercraft, allowing communication and trade between island and mainland villages. In terms of biological colonization, C. Michael Hogan reviews some of the theories of colonization of the rare species Torrey Pine, Pinus torreyana to the islands, suggesting that it is likely that Chumash peoples carried the initial cones in their canoes.[2] The most famous endemic species, though now extinct, was the pygmy mammoth, which is often cited as a case study in insular dwarfism.

Alternate meaning

The Santa Barbara Channel is also the name of local television including 17 community access and 21 arts and education.

Risk of ship-whale collisions

As of at least 2011, a few endangered species of whale (including blue, fin, and humpback) have begun to feed in a new area north of the Santa Cruz and Santa Rosa islands of the Santa Barbara Channel. These whales are at risk to be struck by ships passing through a shipping-lane used to move goods south to Los Angeles and Long Beach ports. About 100 collisions have been documented off of the coast of California since 1982, which includes a rate of about 6 per year today, possibly more due to the difficulty of observing the incidents.[3]

References

  1. ^ "A history of the 1969 oil spill event". Geog.ucsb.edu. 1969-01-29. Retrieved 2011-07-03. 
  2. ^ * C.Michael Hogan (2008) Morro Creek, The Megalithic Portal, ed. by A. Burnham
  3. ^ Barboza, Tony (July 27, 2011). "Trying to reduce ship-whale collisions in Santa Barbara Channel". Los Angeles Times. Retrieved 27 October 2011. 

External links

  • Oil companies continue efforts for permission to drill in the channel

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 


Copyright © World Library Foundation. All rights reserved. eBooks from Project Gutenberg are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.