Navigation Links
Baby fish 'smell their way home'

se what the home reef smelt like, when they left it only a day or so after hatching."

The team exposed tiny fish larvae in a tank to pure streams of water from four different reefs. To their amazement, within minutes a surprisingly high percentage of baby fish had congregated in the water flow from their home reef.

"It was a lot more than you'd expect to happen by pure chance ?and it applied, in differing degrees, across several species of fish," Mike says.

The fish could also be responding to other stimuli, including distant noise off a reef and the behaviour of other fish, but the team concluded that smell was probably the dominant factor leading the babies home.

"Every reef gives off its own unique chemical signature, a rich mixture of the proteins and amino acids emitted by corals, all the plankton and mucus from its life. We think baby fish can pick this up and distinguish it from other reefs.

"We think some fishes then choose currents that smell like 'home' and swim up them. The ones that cannot do this perish. The ones that get home preserve the unique 'ethnic' make-up of their tribe ?and so continue the process of evolving into separate new species."

How the fish learn the unique smell of home is a mystery still. The researchers theorise that it is imprinted on them either when they are an egg inside their mothers, a fertilised egg swept around on the bottom, or new-hatched fry loose in the stream or brooded in their parents' mouths.

"An egg, even a fry, hasn't a fully developed sense of smell, but it may have a way of absorbing the local molecules and then recognizing their signature as "home" when it grows up a bit and is ready to settle," Mike says.

"This evidence that individual coral reefs play such a key role in the emergence of new species is a fresh reason to take even greater care in how we look after them."


'"/>

Source:James Cook University


Page: 1 2

Related biology news :

1. Priming embryonic stem cells to fulfill their promise
2. Protein offers way to stop microscopic parasites in their tracks
3. Flocking together: Study shows how animal groups find their way
4. Where bacteria get their genes
5. Chickadees can help humans get their bearings
6. Bacteria use hosts immune response to their competitive advantage
7. Structures of marine toxins provide insight into their effectiveness as cancer drugs
8. Beauty queens urge girls not to sacrifice their bones
9. Researchers learn how blood vessel cells cope with their pressure-packed job
10. Stem cells electric abilities might help their safe clinical use
11. Multiple genes permit closely related fish species to mix and match their color vision
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Baby fish smell their way home

(Date:4/21/2015)... Canada , April 21, 2015 ... and evolving government policies are boosting access control systems ... According to a recently published report by ... Opportunities, 2020 ", the access control systems market in ... nearly USD1.2 billion by 2020.The access control systems market ...
(Date:4/14/2015)... 14, 2015 NXT-ID, Inc. (NASDAQ: NXTD ... focused on the growing mobile commerce market, announces that ... 2015 New York Design Awards under the category  ,Product ... City Design Awards are part of a global multi-disciplinary ... ratings from the marketplace, industry and judging panel. Winners ...
(Date:4/8/2015)... 2015  Infinisource, a leading provider of SaaS-based Human ... a leading supplier of biometric identification and security ... most advanced biometrically-enabled time clock, the companies announced ... is setting a bold, new standard for the ... small and mid-size employer. When connected to the ...
Breaking Biology News(10 mins):Saudi Arabia Access Control Systems Market to Touch USD1.2 Billion by 2020 Says TechSci Research 2Saudi Arabia Access Control Systems Market to Touch USD1.2 Billion by 2020 Says TechSci Research 3NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 2NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 3iSolved Time Clock Offers Unmatched Accuracy due to Morpho Biometrics 2iSolved Time Clock Offers Unmatched Accuracy due to Morpho Biometrics 3
... a region of tropical wetlands, home to many rare ... these species and artifacts are at risk of extinction ... climate change and industrialization. Archaeologists from ... investigating the effect that changes in the Everglades, water ...
... Tuesday 28 January 2014.- The gene therapy-based research project ... at the Institute for Research in Biomedicine (IRB), in ... (CBMSO), in Madrid, has received 100,000 US$ per year ... (FARA). FARA is one of the main patients, organisations ...
... of EuroScience Open Forum 2014 (ESOF2014) have announced some ... the science forum from 21-26 June. The Nobel ... France, Brian Schmidt, Australian National University, Ada Yonath, Weizmann ... Molecular Biology, will be among the speakers. During ...
Cached Biology News:University of Tennessee Florida Everglades research to help climate change mitigation 2International patient alliance to fund Spanish Friedreich's ataxia gene-therapy project 25 Nobel Laureates attending EuroScience Open Forum in Copenhagen 2
(Date:5/5/2015)... (PRWEB) May 05, 2015 The Alliance ... a Massachusetts-based non-profit operating in the public interest, and ... of the Hearst Communications Company, have formed a strategic ... public outreach and education across the healthcare and clinical ... the voice of patients and the public to be ...
(Date:5/4/2015)... 4, 2015   St. Jude Children,s Research ... computer tool for finding genetic alterations that play ... difficult to identify with whole-genome sequencing. The findings ... Methods . The tool is an ... by Regression Tree in Next Generation Sequencing. ...
(Date:5/4/2015)... , May 4, 2015 /PRNewswire/ - Fluorinov ... to announce the appointment of Dr. Roger J ... experience guiding biotech companies in matters including corporate ... leadership team and adds significant regulatory expertise as ... Dr. Garceau brings 30 years of pharmaceutical development ...
(Date:5/4/2015)... 2015 Achieved primarily through a proprietary ... boast 10 to 100x better detail than the industry ... all existing light microscopy methods, it needed another medium ... as the frame of reference because it represents the ... goal from the earliest discovery days of Ultralight Histology ...
Breaking Biology Technology:ACRES and San Antonio Express-News Launch Blog on Accountability in Clinical Research 2ACRES and San Antonio Express-News Launch Blog on Accountability in Clinical Research 3ACRES and San Antonio Express-News Launch Blog on Accountability in Clinical Research 4Scientists dramatically improve method for finding common genetic alterations in tumors 2Scientists dramatically improve method for finding common genetic alterations in tumors 3Scientists dramatically improve method for finding common genetic alterations in tumors 4Roger J Garceau joins Fluorinov board, adds clinical expertise to bromodomain program and oncology pipeline 2Roger J Garceau joins Fluorinov board, adds clinical expertise to bromodomain program and oncology pipeline 3
... Dec. 15 BioMed Realty Trust, Inc.,(NYSE: ... providing real estate,to the life science industry, today announced ... Operating Officer. Mr. Griffin will oversee,the day-to-day operational activities ... serve as the Company,s Chief Financial Officer. , ...
... rigor if the subject can,t be produced uniformly ... -- nanomaterials with promising technological applications -- find ... is that current techniques for synthesizing double-walled carbon ... These two forms each have interesting properties, but ...
... is being released by CEL-SCI CORPORATION (NYSE Alternext US: CVM) to ... Fellow Shareholders: , , Recently we ... its shareholders. First, the U.N. World Health Organization,s Agency for ... that "the global burden doubled in the last 30 years of ...
Cached Biology Technology:BioMed Realty Trust Promotes Kent Griffin to President 2BioMed Realty Trust Promotes Kent Griffin to President 3Method sorts out double-walled carbon nanotube problem 2CEL-SCI Corporation Releases Letter to Shareholders 2CEL-SCI Corporation Releases Letter to Shareholders 3CEL-SCI Corporation Releases Letter to Shareholders 4CEL-SCI Corporation Releases Letter to Shareholders 5
This thermal printer, 120 V, provides a permanent record of the preprogrammed method and run data for the PROTEAN IEF cell. Includes cable and power adaptor....
... Spacer Leu DAP FLISP Assay ... nm, Em=530 nm) • Accurately measure ... fixing, or permeabilization • B-Bridge's FLISP ... of serine proteases (FLISPs) to measure ...
... protein array systems, known as ChemiArrayTM ... useful compared with current methodologies. Besides ... Chemicons systems present a more accurate ... they only detect secreted cytokines, and ...
... Engine instrument is the cycler that ... thermal uniformity and swappable blocks ensure ... This rugged machine is more ... platform for new features and upgrades ...
Biology Products: