NDLI: Feeding biomechanics of five demersal Antarctic fishes

Content Provider	Springer Nature Link
Author	Bansode, Mugdha A. Eastman, Joseph T. Aronson, Richard B.
Copyright Year	2014
Abstract	There is scant information available on the ecomorphology of Antarctic fishes, and especially on their feeding capabilities. We measured interspecific variation in mechanical advantage (MA), force-producing capability, and suction index for the jaws of the five dominant taxa of high-Antarctic fishes: the nototheniid Trematomus bernacchii; the zoarcids Pachycara brachycephalum, Lycodichthys dearborni, and Ophthalmolycus amberensis; and the liparid Paraliparis devriesi. Analysis of variance indicated significant differences in jaw metrics, and ordinations of morphological traits identified three loosely defined groups reflecting their family-level taxonomy. Principal component analyses showed distinct segregation between the nototheniid and the liparid, indicating that they are at the extremes of the feeding performance continuum. The zoarcids fell in the middle, suggesting that they utilize a combination of feeding modes to capture prey. The liparid had the lowest MA and bite force, but a large epaxialis implied a ram-suction-feeding mode. The large adductor mandibulae in the zoarcids P. brachycephalum and L. dearborni suggest that they are capable of grasping mobile prey and manipulating sedentary, hard-shelled macroinvertebrates. The zoarcids had a smaller epaxialis than the liparid and may not be as efficient as suction-feeders. Values for mechanical advantage ratios and suction indices in Antarctic fishes were within the range known for non-Antarctic fishes. The five Antarctic species do not possess dentition specialized for durophagous feeding; however, the high mechanical advantage ratio in the nototheniid and, to a lesser extent, in the zoarcids, suggests that durophagy may be possible.
Starting Page	1835
Ending Page	1848
Page Count	14
File Format	PDF
ISSN	07224060
Journal	Polar Biology
Volume Number	37
Issue Number	12
e-ISSN	14322056
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-09-02
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Ecomorphology Durophagy Tooth attachment mode Notothenioidea Zoarcidae Liparidae Ecology Oceanography Microbiology Plant Sciences Zoology
Content Type	Text
Resource Type	Article
Subject	Agricultural and Biological Sciences

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Drinking in Antarctic fishes

Eco-morphological patterns of the sagitta of Antarctic fish

Temperature-dependent energy allocation to growth in Antarctic and boreal eelpout (Zoarcidae)

Inducible heat tolerance in Antarctic notothenioid fishes

Description of Gosztonyia antarctica, a new genus and species of Zoarcidae (Teleostei: Perciformes) from the Antarctic Ocean

Antarctic icefishes (Channichthyidae): a unique family of fishes. A review, Part II

Energy Content of Antarctic Mesopelagic Fishes: Implications for the Marine Food Web

Antarctic icefishes (Channichthyidae): a unique family of fishes. A review, Part I

Barbapellis pterygalces, new genus and new species of a singular eelpout (Zoarcidae: Teleostei) from the Antarctic deep waters

Feeding biomechanics of five demersal Antarctic fishes

Similar Documents

Drinking in Antarctic fishes

Eco-morphological patterns of the sagitta of Antarctic fish

Temperature-dependent energy allocation to growth in Antarctic and boreal eelpout (Zoarcidae)

Inducible heat tolerance in Antarctic notothenioid fishes

Description of Gosztonyia antarctica, a new genus and species of Zoarcidae (Teleostei: Perciformes) from the Antarctic Ocean

Antarctic icefishes (Channichthyidae): a unique family of fishes. A review, Part II

Energy Content of Antarctic Mesopelagic Fishes: Implications for the Marine Food Web

Antarctic icefishes (Channichthyidae): a unique family of fishes. A review, Part I

Barbapellis pterygalces, new genus and new species of a singular eelpout (Zoarcidae: Teleostei) from the Antarctic deep waters

Feeding biomechanics of five demersal Antarctic fishes