Navigation Links
Voyages of discovery or necessity?
Date:5/18/2009

Ciguatera poisoning, the food-borne disease that can come from eating large, carnivorous reef fish, causes vomiting, headaches, and a burning sensation upon contact with cold surfaces. An early morning walk on cool beach sand can become a painful stroll on fiery coals to a ciguatera victim. But is this common toxin poisoning also the key to a larger mystery? That is, the storied migrations of the Polynesian natives who colonized New Zealand, Easter Island and, possibly, Hawaii in the 11th to 15th centuries? Could ciguatera be the reason masses of people left paradise?

Teina Rongo, a Cook Island Maori from Rarotonga and a Ph.D. student at the Florida Institute of Technology, and his faculty advisers Professors Robert van Woesik and Mark Bush, propose this intriguing theory in an upcoming issue of the Journal of Biogeography. Based on archeological evidence, paleoclimatic data and modern reports of ciguatera poisoning, they theorize that ciguatera outbreaks were linked to climate and that the consequent outbreaks prompted historical migrations of Polynesians.

Why would historic populations of Cook Islanders take the chance of voyaging? A journey beyond the horizon was risky and favorable landfalls were uncertain. It is known that this population was heavily reliant on fish as a source of protein, and the scientists suggest that once their fish resources became inedible, voyaging became a necessity.

Modern Cook Islanders, though surrounded by an ocean teeming with fish, don't eat fish as a regular part of their diet but instead eat processed, imported foods. In the late 1990s, lower-income families who could not afford processed foods emigrated to New Zealand and Australia. The researchers suggest that past migrations had similar roots. The heightened voyaging from A.D. 1000 to 1450 in eastern Polynesia was likely prompted by ciguatera fish poisoning. There were few options but to leave once the staple diet of an island nation
'/>"/>

Contact: Karen Rhine
krhine@fit.edu
321-674-8964
Florida Institute of Technology
Source:Eurekalert

Page: 1 2

Related biology news :

1. NASA Earth system science meeting celebrates 20 years of discovery
2. Cells split personality is a major discovery into neurological diseases
3. Stowers researchers develop whole genome sequencing approach for mutation discovery
4. Google Earth aids discovery of early African mammal fossils
5. Penn researchers demonstrate a new model for drug discovery with a fluorescent anesthetic
6. Gene discovery could lead to male contraceptive
7. Bioscience institutions come together to launch Microlife Discovery Center for area students
8. Teeth of Columbus crew flesh out tale of new world discovery
9. Elephant shark genome sequence leads to discovery of color perception in deep-sea fish
10. Cellular discovery may lead to targeted treatment for rare form of anemia
11. New discovery paves the way for new diagnosis of serious lung disease
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... researchers, including scientists from the Max Planck Institute for ... major step in understanding photosynthesis, the process by which ... in its atmosphere and which is therefore crucial for ... The researchers report the first direct visualization of a ... in which a specific protein complex, photosystem II, splits ...
(Date:7/11/2014)... hippocampus, the marginal division of the striatum is ... the impact degree of substance P in the ... Yan Yu and his team, College of Biophotonics, ... staining, that substance P receptor, neurokinin 1 was ... division of normal rats. Unilateral or bilateral injection ...
(Date:7/11/2014)... de Janeiro, Brazil- In the brains of all ... that allows an electric or chemical signal to ... Chemical synapses, which are the most abundant type ... Synapse formation is crucial for learning, memory, perception ... inhibitory synapses critical for brain function. For ...
Breaking Biology News(10 mins):A first direct glimpse of photosynthesis in action 2Blame it on the astrocytes 2
... New Geosphere postings cover using traditional geochemistry ... Volcanic Belt; an investigation of mafic rock samples from ... the southeastern Colorado Plateau of New Mexico and Arizona; ... field and micro-analytical techniques; and an addition to the ...
... from Australia are more positive than negative now with regards ... a "long way to go." Considerable progress has been ... heat that continues to generate smoke from the open mine. ... 11, but there are still "weeks of firefighting ahead" according ...
... the list of the chicken,s most lasting legacies may ... optics that can transmit light with the efficiency of ... The unusual arrangement of cells in a chicken,s eye ... new state of matter known as "disordered hyperuniformity," according ...
Cached Biology News:Geosphere covers Mexico, the Colorado Plateau, Russia, and offshore New Jersey 2Geosphere covers Mexico, the Colorado Plateau, Russia, and offshore New Jersey 3Geosphere covers Mexico, the Colorado Plateau, Russia, and offshore New Jersey 4Geosphere covers Mexico, the Colorado Plateau, Russia, and offshore New Jersey 5Geosphere covers Mexico, the Colorado Plateau, Russia, and offshore New Jersey 6In the eye of a chicken, a new state of matter comes into view 2In the eye of a chicken, a new state of matter comes into view 3In the eye of a chicken, a new state of matter comes into view 4In the eye of a chicken, a new state of matter comes into view 5
(Date:7/11/2014)... , July 11, 2014 /CNW/ - Sunovion Pharmaceuticals ... APTIOM TM (eslicarbazepine acetate) for use as a ... in patients with epilepsy who are not satisfactorily controlled ... for use in patients under 18 years of age. ... common neurological disorders and according to Epilepsy Canada, it ...
(Date:7/10/2014)... July 10, 2014 Deep Knowledge ... Medicine Forum on ‘Commercialising Longevity Research’ and welcomed ... to the London Bioscience Innovation Center for the ... and Aging Analytics Ltd. The meeting highlighted the ... translational research for age-related disease, as well as ...
(Date:7/10/2014)... 2014 OMICS Group’s 5th International conference ... August, 2014 at Double Tree by Hilton Beijing, China ... in Analytical & Bioanalytical research methods only to facilitate ... this occasion, Dr. Srinubabu Gedela, MD of OMICS Group ... a remarkable one in bringing a unique and international ...
(Date:7/10/2014)... , July 10, 2014  Kainos Capital, a firm ... today announced that it has acquired the Slim-Fast brand ... the business. Terms of the transaction were not disclosed. ... meal replacement business that markets ready-to-drink shakes, powders, bars ... America and in the United ...
Breaking Biology Technology:Sunovion Pharmaceuticals Canada Inc. Announces Health Canada Approval of APTIOM(TM) (eslicarbazepine acetate) as a Once-Daily Adjunctive Treatment for Partial-Onset Seizures in Patients with Epilepsy 2Sunovion Pharmaceuticals Canada Inc. Announces Health Canada Approval of APTIOM(TM) (eslicarbazepine acetate) as a Once-Daily Adjunctive Treatment for Partial-Onset Seizures in Patients with Epilepsy 3Sunovion Pharmaceuticals Canada Inc. Announces Health Canada Approval of APTIOM(TM) (eslicarbazepine acetate) as a Once-Daily Adjunctive Treatment for Partial-Onset Seizures in Patients with Epilepsy 4DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 2DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 3DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 4DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 5DKV Sponsors Forum on Commercialising Longevity Research; Brings Together Scientists, Investors, Entrepreneurs and Celebrities 6A Critical Review of Analytical Techniques for Improved Living Standards 2A Critical Review of Analytical Techniques for Improved Living Standards 3A Critical Review of Analytical Techniques for Improved Living Standards 4Kainos Capital Acquires Slim-Fast From Unilever 2
... Aug. 24, 2011 United Therapeutics Corporation (NASDAQ: ... of its FREEDOM-C(2) Phase 3 trial of treprostinil ... formulation of treprostinil, a stable synthetic form of ...  Preliminary analysis demonstrates that the trial did not ...
... Lake, N.Y. New research from the Trudeau Institute ... (LAIV), commonly known as FluMist, elicits protection. The ... Vaccine . The journal article is entitled "Live attenuated ... and was authored by Trudeau Institute scientist Dr. Laura ...
... Mich.---A delicate balance of atomic forces can be exploited ... attribute that,s important for many nanotech applications but hard ... The same type of forces are at work bringing ... supercluster structures in this research are in many ways ...
Cached Biology Technology:FREEDOM-C(2) Trial of Oral Treprostinil in Pulmonary Arterial Hypertension Does Not Meet Primary Endpoint 2FREEDOM-C(2) Trial of Oral Treprostinil in Pulmonary Arterial Hypertension Does Not Meet Primary Endpoint 3FREEDOM-C(2) Trial of Oral Treprostinil in Pulmonary Arterial Hypertension Does Not Meet Primary Endpoint 4Trudeau Institute announces a discovery in how FluMist elicits protection 2Engineers discover nanoscale balancing act that mirrors forces at work in living systems 2
Human Norrin Biotinylated Affinity Purified PAb Protein Family: Other Growth Factors, Other Wnt-related Molecules...
...
Recombinant Mouse Matrilin-4, CF Protein Family: Extracellular Matrix Molecules, Chondrogenesis Markers...
Request Info...
Biology Products: