Navigation Links
Lionfish decimating tropical fish populations, threaten coral reefs
Date:7/17/2008

ies on controlled plots, the OSU scientists determined that lionfish reduced young juvenile fish populations by 79 percent in only a five-week period. Many species were affected, including cardinalfish, parrotfish, damselfish and others. One large lionfish was observed consuming 20 small fish in a 30-minute period.

Lionfish are carnivores that can eat other fish up to two-thirds their own length, while they are protected from other predators by long, poisonous spines. In the Pacific Ocean, Hixon said, other fish have learned to avoid them and they also have more natural predators, particularly large groupers. In the Atlantic Ocean, native fish have never seen them before and have no recognition of danger. There, about the only thing that will eat lionfish is another lionfish they are not only aggressive carnivores, but also cannibals.

"In the Caribbean, few local predators eat lionfish, so there appears to be no natural controls on them," Hixon said. "And we've observed that they feed in a way that no Atlantic Ocean fish has ever encountered. Native fish literally don't know what hit them."

When attacking another fish, Hixon said, the lionfish will use its large, fan-like fins to herd smaller fish into a corner and then swallow them in a rapid strike. Because of their natural defense mechanisms they are afraid of almost no other marine life. And the poison released by their sharp spines can cause extremely painful stings to humans even leading to fatalities for some people with heart problems or allergic reactions.

"These are pretty scary fish, and they aren't timid," Hixon said. "They will swim right up to a diver in their feeding posture, looking like they're ready to eat. That can be a little spooky."

Their rapid reproduction potential, Hixon said, must now be understood in context with their ability to seriously depopulate coral reef ecosystems of other fish. Parrotfishes and other herbivores prevent seaweeds from s
'/>"/>

Contact: Mark Hixon
hixonm@science.oregonstate.edu
541-737-5018
Oregon State University
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Tropical insects go the distance to inform rainforest conservation
2. New study warns limited carbon market puts 20 percent of tropical forest at risk
3. Tropical crab invades Georgia oyster reefs -- but the long-term impact cant be predicted
4. Spatial patterns in tropical forests can help to understand their high biodiversity
5. Researchers discover forests of endangered tropical kelp
6. If corn is biofuels king, tropical maize may be emperor
7. Why do so many species live in tropical forests and coral reefs?
8. Time-sharing tropical birds key to evolutionary mystery
9. Springer launches Tropical Plant Biology
10. No convincing evidence for decline in tropical forests
11. Tropical soils impede landmine detection
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:2/5/2015)... , Jan. 28, 2015 Research and Markets ... addition of the "Global Biometrics Market (2014-2020): ... and Countries " report to their offering. ... Asia-Pacific is anticipated to overtake ... owing to increasing government spending towards IT security, ...
(Date:1/22/2015)... , Jan. 22, 2015 Research and Markets ... "Biometrics - A Global Market Overview" report to their ... technology is to ensure that an individual is who she/he ... may make use of a person,s unique physical characteristics, such ...
(Date:1/22/2015)... 2015  Today, FreeWavz ( www.FreeWavz.com ), the developer ... on Fundable, https://www.fundable.com/freewavz . FreeWavz will be ... to meet customer demand. Logo - ... Invented by Dr. ...
Breaking Biology News(10 mins):Global Biometrics Market (2014-2020): Market Forecast By Technologies, Applications, End Use, Regions and Countries 2Global Biometrics Market (2014-2020): Market Forecast By Technologies, Applications, End Use, Regions and Countries 3Biometrics - A Global Market Overview 2Biometrics - A Global Market Overview 3FreeWavz Launches on Fundable to Drive Speed-to-Market in 2015 2
... A group of computer scientists, mathematicians, and biologists from ... can help trace the genetic ancestry of thousands of ... background. The teams findings will be published in the ... Unlike previous computer programs of its kind that require ...
... of researchers led by the Smithsonian Institution has completed ... as the hobbit, a 3-foot-tall, 18,000-year-old hominin skeleton, discovered ... This study offers one of the most striking confirmations ... island remnant of one of the oldest human migrations ...
... mentored by members of the American Society of Plant ... Undergraduate Research Fellowships (SURF). The $3,000 fellowship permits each ... research project for a 10-week period during the summer. ... lab supplies, a free student membership in ASPB until ...
Cached Biology News:Computer program traces ancestry using anonymous DNA samples 2New research sheds light on 'Hobbit' 2ASPB announces Summer Undergraduate Research Fellowship 2007 recipients 2ASPB announces Summer Undergraduate Research Fellowship 2007 recipients 3
(Date:2/27/2015)... 2015 Immunovaccine Inc. (“Immunovaccine” or the ... fraudulent press release disseminated this morning by PR Web, ... This press release states that Immunovaccine has entered into ... press release did not originate from Immunovaccine and there ... press release. Please note that all official statements ...
(Date:2/27/2015)... Scotia (PRWEB) February 27, 2015 ... vaccine and immunotherapy company, today announced that the ... application for Fast Track designation and Phase I ... in conjunction with the mutual co-development agreement signed ... obtained Fast Track designation for the DPX-Survivac. , ...
(Date:2/27/2015)... 2015 Cytokinetics, Incorporated (Nasdaq: CYTK) announced ... with patients and health care advocates in the United ... Day®. Rare Disease Day is dedicated to elevating ... the special challenges faced by patients with rare diseases ... proud to stand alongside patients and caregivers representing the ...
(Date:2/26/2015)... , Feb. 26, 2015  23andMe, the leading personal ... Black as Privacy Officer and Corporate Counsel. Black ... privacy laws as well as health care regulations. As ... will be responsible for reviewing, updating and enhancing the ... U.S. and abroad. She joined the company January 5, ...
Breaking Biology Technology:Immunovaccine Disclaims Hoax Press Release 2Immunovaccine Inc. (TSX: IMV) receives Fast Track and Phase I trial approval for Ebola and Anthrax vaccine programs, signs co-development agreement with Gilead Sciences 2Immunovaccine Inc. (TSX: IMV) receives Fast Track and Phase I trial approval for Ebola and Anthrax vaccine programs, signs co-development agreement with Gilead Sciences 3Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 2Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 3Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 4Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 5Cytokinetics Joins Global Movement to Raise Awareness for Rare Diseases 623andMe Appoints Kate Black as Privacy Officer and Corporate Counsel 2
... /PRNewswire-FirstCall/ - Oncolytics Biotech Inc.,("Oncolytics") (TSX:ONC, NASDAQ:ONCY) ... results from a U.K. Phase Ia/Ib combination,REOLYSIN(R)/radiation ... cancers is scheduled to be presented today ... and Cancer Therapeutics in,San Francisco. The conference ...
... ALTO, Calif., Oct. 23 CV Therapeutics,Inc. (Nasdaq: ... including data,from a prospectively identified analysis of patients ... accepted for presentation at the American,Heart Association (AHA) ... FL on November 4 - 7, 2007. ...
... to Speak, RESTON, Va., Oct. 23 PRA ... Berger, the company,s senior,director of therapeutic expertise and a ... on conducting global,clinical research in oncology on Thursday, Nov. ... Global Oncology Trials," Dr. Berger will,recommend ways to mitigate ...
Cached Biology Technology:Oncolytics Biotech Inc. Collaborators to Present Positive Interim Results of U.K. Phase Ia/Ib Combination REOLYSIN(R) and Radiation Clinical Trial 2Oncolytics Biotech Inc. Collaborators to Present Positive Interim Results of U.K. Phase Ia/Ib Combination REOLYSIN(R) and Radiation Clinical Trial 3CV Therapeutics Announces Presentations at American Heart Association Scientific Sessions 2007 2CV Therapeutics Announces Presentations at American Heart Association Scientific Sessions 2007 3PRA International to Present Audioconference on Oncology Research - Nov. 8 2
These disposable button tethers are designed for rat infusion studies lasting more than 2 weeks. After one to two weeks the subcutaneous tissue will grow into the Dacron mesh, making the sutures irre...
Newborn Bovine Serum Heat-Inactivated...
Mycoplasma and virus tested...
... 10X BlueJuice Gel Loading ... easy loading and tracking ... agarose or native polyacrylamide ... features higher density sucrose ...
Biology Products: