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 Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter April 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

Chevron Suffers Loss, Plans Job Cuts

Chevron Corp. reported a first-quarter loss as slumping oil prices continued to drag down revenue. The company said that it is "on target" to lay off a total of 8000 workers by the end of 2016,

China COSCO to be First through the Expanded Panama Canal

China COSCO Shipping has won the draw for its container vessel Andronikos to make the ceremonial first transit through the Expanded Panama Canal during the waterway’s inauguration on Sunday, June 26.

Sellick Equipment to Open New Facility

On April, 20, 2016, at the young age of 97 years, Walter Sellick along with sons Howard Sellick - President, David Sellick - Vice President and grandson Colin Sellick - Systems Manager,

Technology

Lerwick Harbor sees Seasonal Boost

The opening of the offshore season in northern waters has seen specialist oil industry vessels return to Lerwick Harbor during April to support subsea development projects.

ExxonMobil 1Q Profits Plunge 63%

Highlights   * Earnings of $1.8 billion decreased 63 percent from the first quarter of 2015.   * Earnings per share were $0.43 assuming dilution.   * Cash

KICT Welcomes MSC MEL 1 Service First Call

MSC Lana Voy-JA618R made its inaugural call at Karachi International Container Terminal (KICT), marking the launch of a new Middle East Loop 1 (MEL 1) Service.

Environmental

Italian Ship Rescues 26 Migrants off Libya

An Italian merchant ship rescued 26 migrants off the coast of Libya in rough seas and others were feared missing, the Coast Guard said on Saturday. The Coast

Symphony Sun’ Launched in Leer

On Friday the 29th of April, Nb. 420 was launched in Leer. She was christened ‘Symphony Sun’ and is the fourth vessel in a series of 6 that will be delivered to Symphony Shipping.

Great Lakes Inks M.E., N.C. Coastal Protection Project Deals

Great Lakes Announces $55 Million in Subcontract Work in the Middle East and Award of $38 Million for a Domestic Coastal Protection Project Great Lakes Dredge

Marine Science

ACR to Debut Pathfinder PRO SART at OTC

An important addition to any commercial vessel’s survival gear kit, the Pathfinder PRO SART is introduced by ACR Electronics, Inc. at this year’s OTC. The new search

Ocean Economy Set to Double in Size by 2030

The world’s oceans must be managed well to ensure the potential of an “ocean economy” that was worth US $ 1.5 trillion in 2010.   "Calculations based on the

ICS Criticises 'Prestige’ Judgement by Spanish Court

At a meeting of the International Oil Pollution Compensation Funds (IOPCF) this week, the International Chamber of Shipping (ICS) has strongly criticised the judgement

Ocean Observation

Panama Canal Dismisses ITF Claims

The Panama Canal has dismisses claims by the International Transport Workers’ Federation (ITF) that questions industry standards and the operation of the Expanded Panama Canal’s new locks.

Ocean Economy Set to Double in Size by 2030

The world’s oceans must be managed well to ensure the potential of an “ocean economy” that was worth US $ 1.5 trillion in 2010.   "Calculations based on the

CKYHE Alliance to Reorganize US East Coast Service

CKYHE Alliance, COSCON, “K”Line, Yang Ming, Hanjin and Evergreen Line, is reorganizing their service network for Asia-US East Coast trade in 2016.   CKYHE Alliance

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Standards Offshore Oil Pod Propulsion Ship Electronics Ship Repair Ship Simulators Shipbuilding / Vessel Construction 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: 0.0869 sec (12 req/sec)