Navigation Links
Researchers discover forests of endangered tropical kelp
Date:9/26/2007

(Santa Barbara, Calif.) -- A research team led by San Jose State University and the University of California, Santa Barbara has discovered forests of a species of kelp previously thought endangered or extinct in deep waters near the Galapagos Islands. The discovery has important implications for biodiversity and the resilience of tropical marine systems to climate change. The research paper describing the discovery is published in this weeks on-line issue of the Proceedings of the National Academy of Sciences.

The ecosystems that form in these cold, deep pockets beneath warm tropical waters look more like their cousins in California than the tropical reefs just 200 feet above, said co-author Brian Kinlan, a researcher with UC Santa Barbaras Marine Science Institute. It is very similar to what we see when we climb a high mountain. For example, high alpine country in California looks more like Alaska.

Kinlan and Michael Graham, associate professor at SJSU, began by developing a mathematical model designed to predict likely habitat for the kelp, Eisenia galapagensis, based on information from satellites and oceanographic instruments on conditions including light, depth and nutrient availability. The premise of the model was developed by collaborator Louis Druehl, of the Bamfield Marine Science Centre, who surmised it was possible to create a predictive model for locating kelp forests rather than focusing on the limited details available from rare field observations.

The research team tested the model by traveling to the predicted habitat, where they searched for the kelp. Scuba divers -- including students from CSU Monterey Bay, CSU East Bay and UC Davis -- found the kelp forests from 40 to 200 feet below the surface, making the mission a success. The students conducted their surveys alongside the famed Amblyrhynchus christatus, the world's only seagoing iguanas. (High-resolution color photos are available.)

The mission's success has three major implications. First, the World Conservation Union, which recently added Eisenia galapagensis to its global database of threatened species, may reconsider that action. Second, the model may find other marine life presumed endangered or rare but actually hidden beneath the ocean's surface. The model does this by pinpointing unexpected places to search. In this case, the model correctly predicted that deep waters in the tropics could harbor kelp forests more commonly associated with temperate regions such as central California. The model identified nearly 10,000 square miles of similar unexpected cold spots in deep tropical waters worldwide.

The third implication of the research is that marine biodiversity may be more tolerant of climate change than presumed. Graham compares his team's kelp forests to the underwater hydrothermal vents discovered off South Africa in 1977. Scientists were surprised to find thriving ecosystems near those vents in water previously considered too deep and dark to harbor complex communities. Graham theorizes the kelp forests his team discovered may reveal a similar wealth of plant and animal life. So while global warming may heat coral reefs and alter life there, marine communities may continue to thrive in kelp forests deep beneath the surface, where cooler nutrient-rich waters are less affected by surface warming.


'/>"/>

Contact: Gail Gallessich
gail.g@ia.ucsb.e.du
805-893-7220
University of California - Santa Barbara
Source:Eurekalert

Related biology news :

1. Researchers discover way to make cells in the eye sensitive to light
2. Researchers find how protein allows insects to detect and respond to pheromones
3. Researchers Uncover Key Step In Manufacture of Memory Protein
4. NYU researchers simulate molecular biological clock
5. Researchers reveal the infectious impact of salmon farms on wild salmon
6. Researchers identify target for cancer drugs
7. Vital step in cellular migration described by UCSD medical researchers
8. ASU researchers finds novel chemistry at work to provide parrots vibrant red colors
9. UCSD researchers maintain stem cells without contaminated animal feeder layers
10. Researchers discover molecule that causes secondary stroke
11. Researchers find missing genes of ancient organism
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/16/2016)... 16, 2016   EyeLock LLC , a market ... opening of an IoT Center of Excellence in ... the development of embedded iris biometric applications. ... convenience and security with unmatched biometric accuracy, making it ... from DNA. EyeLock,s platform uses video technology to deliver ...
(Date:4/28/2016)... First quarter 2016:   , Revenues amounted ... quarter of 2015 The gross margin was 49% (27) ... the operating margin was 40% (-13) Earnings per share ... operations was SEK 249.9 M (21.2) , Outlook   ... M. The operating margin for 2016 is estimated to ...
(Date:4/15/2016)... , April 15, 2016 ... the,  "Global Gait Biometrics Market 2016-2020,"  report to ... http://photos.prnewswire.com/prnh/20160330/349511LOGO ) , ,The global gait biometrics ... of 13.98% during the period 2016-2020. ... angles, which can be used to compute factors ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... Prostate Cancer Foundation (PCF) is pleased to announce 24 new Young ... cancer. Members of the Class of 2016 were selected from a pool of ... More About the Class of 2016 PCF Young Investigators ... ... ...
(Date:6/23/2016)... ... June 23, 2016 , ... STACS DNA Inc., the ... at the Arkansas State Crime Laboratory, has joined STACS DNA as a Field Application ... team,” said Jocelyn Tremblay, President and COO of STACS DNA. “In further expanding our ...
(Date:6/23/2016)... LONDON , June 23, 2016 ... & Hematology Review, 2016;12(1):22-8 http://doi.org/10.17925/OHR.2016.12.01.22 ... Review , the peer-reviewed journal from touchONCOLOGY, ... the escalating cost of cancer care is placing ... a result of expensive biologic therapies. With the ...
(Date:6/23/2016)... ... June 23, 2016 , ... ... of intelligent tools designed, tuned and optimized exclusively for Okuma CNC machining centers ... The result of a collaboration among several companies with expertise in toolholding, cutting ...
Breaking Biology Technology: