Navigation Links
Even fish don't swim well when they're young!

Do you remember learning to swim? Thrashing around, floundering, until suddenly it all clicks into place and a few feeble strokes of doggy-paddle propel you away from your parent's arms. Surely, you think, fish must be born as expert swimmers. Actually, fish larvae are pretty feeble when it comes to an efficient mode of swimming called 'burst-and-coast'. Dr Ulrike Müller from Wageningen University studies how fish swim: "Fish larvae are the most critical life history stage. In marine fish more than 99% of the mortality occurs in the larval stage so anything that might explain what holds them back is useful". Müller will present her research on Monday 3rd April, at the Society for Experimental Biology's Annual Main Meeting in Canterbury [session A5].

The 'burst-and-coast' method of swimming involves alternating stages: the fish power forward in a 'burst' and then hold their body straight to 'coast'. Dr Müller and her colleagues might have found what it is that prevents larvae of the zebrafish from reaching top speeds: the larvae cannot maintain their body in a horizontal position while coasting. The research team think this is because larvae don't have the help of an adult swimbladder and have only small, ineffective side-fins. This lack of control in early days means that the larvae suffer a lot of drag during the coasting phase and this could be something that affects other types of fish. "Many fish larvae hatch without fully formed pectoral fins and all hatch without a swimbladder, so similar problems could occur for them", predicts Müller.

This conclusion is all the more profound because it refutes two previous theories of poor hatchling swimming, one focusing on the burst phase and the other on the coast.The former of the two explanations suggests that because the larvae are not very heavy they may not gain much momentum in the burst phase to carry over into the coast phase, while the latter theory states that when the larvae are very small they e
'"/>

Source:Society for Experimental Biology


Page: 1 2

Related biology news :

1. Penguins waddle but they dont fall down, UH researchers say
2. Nearly half of people who need cholesterol treatment dont get it
3. Study: Paramedics save more lives when they dont follow the rules
4. One-third of adults with diabetes still dont know they have it
5. Survival of the selfless - scientists find cheats dont always prosper
6. Why mice dont get cancer of the retina
7. Why dont all moles progress to melanoma?
8. New cigarette designs dont offer lower predicted cancer risks
9. Some caterpillers just dont want to grow up
10. Mosquito repellents that emit high-pitched sounds dont prevent bites
11. When your brain talks, your muscles dont always listen
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Even fish don swim well when they young

(Date:5/11/2015)... , May 11, 2015  Synaptics Incorporated (NASDAQ: ... interface solutions, today announced the appointment of ... Chief Financial Officer, reporting to Rick Bergman ... current Chief Financial Officer, Kathleen Bayless , ... Mr. Ali brings extensive financial management ...
(Date:5/7/2015)... , May 7, 2015 ... sensors, FPC1022 and FPC1035, FPC,s smallest touch fingerprint ... are mainly considered for integration on the backside ... smartphone OEMs increased possibilities to integrate touch fingerprint ... size also improves possibilities for module manufacturers to ...
(Date:4/27/2015)... LAUDERDALE, Fla. , Apr. 27, 2015 ... of access control and security systems is pleased to ... the company as a consultant and member of its ... is widely known as a thought leader in ... Distance Learning Technology Group, and has published studies and ...
Breaking Biology News(10 mins):Synaptics Appoints Wajid Ali as Senior Vice President and Chief Financial Officer 2FPC Introduces its Smallest Touch Fingerprint Sensors to Date 2Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 2Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 3Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 4
... Carnivores in the Iberian Peninsula, such as the Iberian lynx, ... to changing climatic conditions and that can even survive in ... the innate ability of ticks to adapt according to climate. ... the climate, habitat or movement patterns of people and goods. ...
... bear. They may have to go months without eating. Their ... to that the melting of Arctic sea ice due to climate ... it,s easy to see why polar bears worldwide are in trouble. ... bright spot. In a study of PCBs in polar bear cubs ...
... chromosomal abnormality in children with a deadly form of ... survival, clinician scientists at The University of Nottingham have ... Children,s Brain Tumour Research Centre as part of a ... test to allow doctors to identify youngsters who are ...
Cached Biology News:Ticks can adapt to the Spain's climatic diversity 2PCBs levels down in Norwegian polar bears 2PCBs levels down in Norwegian polar bears 3Genetic abnormality offers diagnostic hope for children's cancer 2Genetic abnormality offers diagnostic hope for children's cancer 3
(Date:5/26/2015)... Mass. , May 26, 2015  Alere Inc. (NYSE: ... result of its failure to timely file its Quarterly Report ... 2015 (the "Form 10-Q"), it has received a notice from ... is not in compliance with the NYSE,s continued listing requirements ... the NYSE Listed Company Manual. The reason ...
(Date:5/26/2015)... ORANGEBURG, N.Y. , May 26, 2015 /PRNewswire/ ... products and solutions, today announced that Oakwood Healthcare ... been selected as the winning entry in ... recognizing industry professionals who display excellence in building ... services (ES) teams in healthcare facilities.  ...
(Date:5/26/2015)... 26. mája 2015 Kevin Xu ... rodiny prezidentom Barackovi Obamovi a Billovi Clintonovi za ... stratou Dr. Rongxiang Xu , otca Kevina. ... Dr. Xu bol pionier, inovátor, humanitárny ... odhodlanie v oblasti vedy a príkladné vedenie svojej ...
(Date:5/26/2015)... TORONTO , May 26, 2015 /PRNewswire/ - Fluorinov ... appointment of Luke M. Beshar to its ... adding financial and pharmaceutical industry expertise as Fluorinov accelerates ... of the Fluorinov team, it is a pleasure to ... had a significant impact on the strategy, financial strength ...
Breaking Biology Technology:PDI Announces Winner in Delivering the Difference Contest 2PDI Announces Winner in Delivering the Difference Contest 3Dr. Rongxiang Xu, O legende 2Luke M. Beshar Appointed to Fluorinov Pharma Board of Directors 2Luke M. Beshar Appointed to Fluorinov Pharma Board of Directors 3
... sessions of the 2006 Fuel Ethanol Workshop & Expo ... State Senate for rejecting a proposed ethanol mandate ... has given them one more reason to be disappointed. ... ethanol incentive proposed by Governor Jim Doyle . The ...
... of discussion in the blogosphere, a new comparison shopping ... in Madison for public beta testing, with a permanent ... , is designed to be more "transparent" and more ... engines from Google, Yahoo!, or MSN, and accomplish this ...
... 19 and 20 at the Drake Hotel in Chicago, ... legal, engineering and due diligence providers gathered at the ... small and middle markets ($10 million to $1 billion) ... "maximizing the value of your brand and intellectual property" ...
Cached Biology Technology:Joint Finance blocks Doyle ethanol measure 2Joint Finance blocks Doyle ethanol measure 3Jellyfish launches comparative shopping website 2Some great insights into the current Mergers & Acquisitions Market 2Some great insights into the current Mergers & Acquisitions Market 3Some great insights into the current Mergers & Acquisitions Market 4Some great insights into the current Mergers & Acquisitions Market 5
... thermal cycler, flexible on your protocols, easy on ... performance, high sample throughput instrument at a highly ... block format: The truly user-friendly fully interchangeable block ... matter of seconds without the need of any ...
Preparation Note: by a modification of the procedure of C.W. Hancher et al., Biotechnol. Bioeng. 11, 1055 (1969) Assay: ~ 20 A 260 /mg Solubility: water 10 mg/mL, clear, light-yellow Suitab tst...
A collection of 42 spots with normal tissues from different organs of C57 mice, rat and human....
... Life Science FLA-7000 excels at fluorescent and ... documentation. It features four easy-to-access filters (filters ... filter for Imaging Plates) for upgrading flexibility. ... choice of four kinds of excitation laser ...
Biology Products: