Navigation Links
Squid studies provide valuable insights into hearing mechanisms
Date:10/15/2010

own about how well squid hear and whether they rely on hearing to navigate, sense danger, and communicate with each other. Until recently, it wasn't clear that they even hear at all.

It is known now, through the work of Mooney and others, that the squid hearing system has some similarities and some differences compared to human hearing. Squid have a pair of organs called statocysts, balance mechanisms at the base of the brain that contain a tiny grain of calcium, which maintains its position as the animal maneuvers in the water. These serve a function similar to human ear canals.

Each statocyst is a hollow, fluid-filled sac lined with hair cells, like human cochlea. On the outside of the sac, the hair cells are connected to nerves, which lead to the brain. "It's kind of like an inside-out tennis ball," Mooney said, "hairy on the inside, smooth on the outside."

The calcium grain, called a statolith, enables the squid to sense its position in the water, based on which hair cells it's in contact with at a given moment. Normally it rests near the front of the sac, touching some of the hair cells.

When a squid moves quicklyas it does when it flees an approaching predatorthe heavy calcium stone lags behind slightly before catching up to the hair cells. "Kind of like your stomach on a roller coaster," Mooney said. "The hair cells are very sensitive and can detect the calcium statolith lagging behind, then catching up."

Structurally, the statocyst "is analogous to our auditory system," said Mooney, who began his hearing research while working on his Ph.D. at the University of Hawaii. The statocyst, he thinks, "is on its way to becoming an ear" like the more familiar ears of vertebrates.

But to what extent does it function as an ear? "One of the obvious questions is, 'Can this acceleration-sensing 'ear' to also detect sounds?' Then, if they can hear sounds 'Do squid hear their predators coming?' " Mooney asked.


'/>"/>

Contact: Media Relations
media@whoi.edu
508-289-3340
Woods Hole Oceanographic Institution
Source:Eurekalert

Page: 1 2 3 4 5

Related biology news :

1. Habitat of elusive Northern squid documented by researcher
2. URI researcher sheds light on man-eating squid; finds them timid, nonthreatening
3. URI researcher sheds light on man-eating squid; finds them timid, non-threatening
4. Ocean acidification from CO2 emissions will cause physiological impairment to jumbo squid
5. Studies provide new insights into the genetics of obesity and fat distribution
6. Got fish? Nutrition studies explore health benefits
7. Grant advances quark-gluon plasma studies

8. Thesis studies atmospheric PM contaminant in the Basque Autonomous Community
9. NIH grants will advance studies of the form and function of proteins
10. Marshall University researchers awarded more than $1 million for breast cancer studies
11. NIH-funded studies aim to prevent, treat childhood obesity
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/8/2015)... N.C. , April 8, 2015  Infinisource, ... solutions and services, and Morpho, a leading supplier ... partnership to produce the market,s most advanced biometrically-enabled ... Infinisource,s iSolved NXG time clock is setting a ... and labor data for the small and mid-size ...
(Date:4/2/2015)... , April 2, 2015 ... DERMALOG by far outperforms the strongest competitors, showing ... high accuracy, the system is capable of a ... speed proves up to be ten times faster ... its runner-up performance.      (Photo: ...
(Date:4/2/2015)... 2015 According to preliminary estimates ... somewhat higher than 125 MSEK. This exceeds the guidance ... that revenues for Q1 2015 would be in line ... Q4 2014. The operating result for the first quarter ... interim report will as previously communicated be published on ...
Breaking Biology News(10 mins):iSolved Time Clock Offers Unmatched Accuracy due to Morpho Biometrics 2iSolved Time Clock Offers Unmatched Accuracy due to Morpho Biometrics 3DERMALOG AFIS Emerges as Performance Winner in NIST Benchmark Test 2DERMALOG AFIS Emerges as Performance Winner in NIST Benchmark Test 3Fingerprint Cards Revises Revenues for Q1 2015 2
... SPRING HARBOR, N.Y. (Jan. 11, 2011) -- The ... a decade ago, has revolutionized biological research. But ... and linking basic biological processes to genomic information can ... new resource that provides easy access to information about ...
... One of the challenges of gene therapy - a set ... or RNA) - is to assure that this material arrives ... substantial amount along the way and without producing any undesired ... use of different types of vectors, molecules capable of transporting ...
... microscope, a coronavirus may resemble a spiny sea urchin or ... takes its name). Previously recognized as the second leading ... important diseases in many domesticated animals, a new disease form ... when the SARS coronavirus (CoV) surfaced in Asia. The ...
Cached Biology News:New user-friendly resource connects human genes to biological functions 2Nanodisk gene therapy 2New research aims to shut down viral assembly line 2New research aims to shut down viral assembly line 3New research aims to shut down viral assembly line 4New research aims to shut down viral assembly line 5
(Date:4/17/2015)... Reed Technology and Information Services ... management, preparation, and submission to the U.S. Food and ... new Lot Distribution Report (LDR) service for manufacturers of ... with the FDA’s new rule on electronic submission of ... the volume and timing of particular biologics introduced to ...
(Date:4/17/2015)... , April 17, 2015  Guggenheim Securities, the investment ... announced the hiring of William Tanner as ... Mr. Tanner will start work at Guggenheim in ... office. "Bill brings a wealth ... to our experienced and highly acclaimed healthcare team," said ...
(Date:4/17/2015)... 2015 LC Sciences LLC, a ... today that it is seeking beta testers for ... PCR based targeted sequencing technology. The system offers ... enables accurate detection of rare variants. It utilizes ... The company will collaborate with beta testers to ...
(Date:4/16/2015)... KYOTO and OSAKA, Japan ... iPS Cell Research Application (CiRA) of Kyoto University ... that they will work together to develop clinical ... such as heart failure, diabetes mellitus, neurological disorders ... iPS Cell Applications" (T-CiRA) is designed to expedite ...
Breaking Biology Technology:Reed Tech Announces FDA Lot Distribution Report (LDR) Service for Manufacturers of Biologic Products 2Reed Tech Announces FDA Lot Distribution Report (LDR) Service for Manufacturers of Biologic Products 3Guggenheim Securities Hires Biotech Analyst William Tanner in Expansion of Healthcare Coverage 2LC Sciences Seeks Beta Testers of Targeted Sequencing Method Ahead of Q4 Launch 2LC Sciences Seeks Beta Testers of Targeted Sequencing Method Ahead of Q4 Launch 3CiRA and Takeda Enter 10-year Collaboration on iPS Cell Research 2CiRA and Takeda Enter 10-year Collaboration on iPS Cell Research 3
... tools and find the organisms to break down the ... the key step toward fermentation of those sugars ... and economically efficient before cellulosic biofuels can compete with ... any exploration of systems that involve largely unknown processes, ...
... Inc. (Nasdaq: ONTY ) will conduct a conference call to discuss its ... 4:30 p.m. Eastern time ( 1:30 p.m. Pacific time ). , ... To participate in the call by telephone, ... addition, the call will be webcast live and can be accessed on the ...
... CHICAGO , July 26 Advanced ... Board: ADLS), a biopharmaceutical company engaged in the discovery, ... areas of infection, oncology and respiratory diseases, today announced ... and option agreement with The University of British ...
Cached Biology Technology:New hydrolysis model promising tool in cellulosic biofuel studies 2New hydrolysis model promising tool in cellulosic biofuel studies 3Advanced Life Sciences Expands Antibiotic Pipeline 2Advanced Life Sciences Expands Antibiotic Pipeline 3Advanced Life Sciences Expands Antibiotic Pipeline 4
... Recognizes K+ Cl- Cotransporter-1 ... no significant sequence homology ... CCC.,SPECIES REACTIVITIES: The immunogen ... in human, mouse, porcine ...
Anti-G-alpha-i 1 G-Protein Host: mouse monoclonal Species Reactivity: human, mouse, rat Applications: WB Storage: 4C...
Mouse monoclonal [DAPK-55] to DAP Kinase 1 ( Abpromise for all tested applications). entrezGeneID: 1612 SwissProtID: P53355...
KOR-1 (C-20)...
Biology Products: