Seahorses Are Really Ferocious Finds New Study

SeaDiscovery.com
Thursday, November 28, 2013
Lined Seahorse: Photo Wiki CCL

The beautiful creatures are famously bad swimmers, but they have a secret weapon to sneak up on their prey. Their peculiar snouts are shaped to create very few ripples in the water, effectively cloaking them as they creep up and pounce on tiny crustaceans, reports BBC Science News referring to research published by Dr Brad Gemmell of the University of Texas.

An abstract summary of the report published by 'Nature Communications' in greater scientific detail explains that Syngnathid fish (seahorses, pipefish and sea dragons) are slow swimmers yet capture evasive prey (copepods) using a technique known as the ‘pivot’ feeding, which involves rapid movement to overcome prey escape capabilities. However, this feeding mode functions only at short range and requires approaching very closely to hydrodynamically sensitive prey without triggering an escape.

Researchers used holographic and particle image velocimetry (PIV) to show that head morphology functions to create a reduced fluid deformation zone, minimizing hydrodynamic disturbance where feeding strikes occur (above the end of the snout), and permits syngnathid fish to approach highly sensitive copepod prey (Acartia tonsa) undetected.

Sources: 1. BBC 2.Nature Communications (http://www.nature.com/ncomms/2013/131126/ncomms3840/full/ncomms3840.html)

Maritime Reporter July 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

Australian PM Promises 2500 Shipbuilding Jobs

Up to 2,500 shipbuilding jobs in Adelaide will be safe for "all time", the Prime Minister says, ahead of the expected announcement to build a new fleet of Navy ships worth $39 billion, reports ABC.

Egypt Says Finishes Work on New Suez Canal

Egypt has finished building its New Suez Canal, its overseer said on Wednesday, a project President Abdel Fattah al-Sisi sees as a symbol of national pride and

CMA CGM to Resume Service to Iran

The world's third-largest container shipping group, France's CMA CGM, said on Monday it would resume operations to Iran following the deal between Tehran and world

Technology

Tanker Retrofitted with Dual Fuel Engine

Caterpillar Marine informs it has begin a dual fuel engine retrofit conversion onboard the 472-foot Fure West tanker, owned by Furetank Rederi A/B. The MaK M 43

VARD SeaQ Bridge gets Lilaas touch

‘Finger-grip’ vessel control offering precise tactile feedback may seem radical for those accustomed to conventional levers, but the combination is proving a

Polarcus Secures New Contract

Polarcus Limited sign a new contract with an unnamed client in terms of a marine 3D seismic project where Polarcus' Right Band technique used  for broadband data acquisition.

Environmental

Climate Change Boosts Galapagos Penguin Population

New study finds shifting winds and ocean currents helped double endangered Galapagos Penguin population   Shifts in trade winds and ocean currents powered a resurgence

Canada's First LNG Ferry Launches with Bestobell Valves

Bestobell Valves is celebrating supplying cryogenic valves to Canada’s first LNG-fuelled ferry – the MV Armand-Imbeau II, which has recently been launched.   It

Harper Government Invests in Naufrage Harbor

The Honorable Gail Shea, Minister of Fisheries and Oceans, announced today an investment to improve safety and working conditions for fishermen at Naufrage Harbor, Prince Edward Island.

Marine Science

Climate Change Boosts Galapagos Penguin Population

New study finds shifting winds and ocean currents helped double endangered Galapagos Penguin population   Shifts in trade winds and ocean currents powered a resurgence

Renovated Research Vessel Sets Sail

French scientific research vessel completely renovated in life extension project. French research vessel Marion Dufresne II left Damen Shiprepair Dunkerque (part

VARD SeaQ Bridge gets Lilaas touch

‘Finger-grip’ vessel control offering precise tactile feedback may seem radical for those accustomed to conventional levers, but the combination is proving a

Ocean Observation

Climate Change Boosts Galapagos Penguin Population

New study finds shifting winds and ocean currents helped double endangered Galapagos Penguin population   Shifts in trade winds and ocean currents powered a resurgence

BG Awards Fugro MBES, Seabed Coring Contract

Fugro has been awarded a contract by BG International Limited Sucursal Honduras to conduct an integrated multibeam echosounder (MBES) survey and seabed coring campaign

Polarcus Secures New Contract

Polarcus Limited sign a new contract with an unnamed client in terms of a marine 3D seismic project where Polarcus' Right Band technique used  for broadband data acquisition.

 
 
Maritime Contracts Naval Architecture Navigation Offshore Oil Pipelines Pod Propulsion Port Authority Ship Electronics Ship Simulators Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.4040 sec (2 req/sec)