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Record #157962:

Meltwater effects on intertidal Antarctic limpets, Nacella concinna / John Davenport.

Title: Meltwater effects on intertidal Antarctic limpets, Nacella concinna / John Davenport.
Author(s): Davenport, John.
Date: 2001.
In: Journal of the Marine Biological Association of the United Kingdom. (2001.), Vol. 81(4) (2001)
Abstract: Reports results of 1999 study of limpet Nacella concinna conducted at South Cove, Adelaide Island, Antarctica. Nacella concinna was found to be stenohaline osmoconformer with median lower lethal salinity of 20.9 psu and medial lethal time for freshwater exposure of 2 h 18 min. A 1 h exposure to freshwater caused 14% increase in body volume and 27% loss of body fluid ions. Short-term behavioural response to exposure to meltwater involves clamp down of shell, retraction of head, cephalic and mantle margin tentacles, while on vertical surfaces 50% of limpets lose adhesion within 5 minutes. Consideration of tidal regimes suggests that individual intertidal limpet risks exposure to severe meltwater exposure about once a year.
Notes:

Journal of the Marine Biological Association of the United Kingdom. Vol. 81(4) :643-649 (2001).

Keywords: 574 -- Ecology.
574.5 -- Marine and freshwater ecology.
592 -- Invertebrata.
594 -- Mollusca.
594.3 -- Gastropoda: Nacella concinna.
574.2 -- Organisms, influence of environment.
574.2.043/.045 -- Organisms, influence of physical environment.
574.24 -- Habitat conditions, effect of alterations.
.000(410) -- British author.
H2 -- Zoology: invertebrates.
(*7) -- Antarctic regions.
(*726.5) -- Antarctic Peninsula, west coast and islands.
(*726.56) -- Loubet Coast.
SPRI record no.: 157962

MARCXML

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520 3# ‡aReports results of 1999 study of limpet Nacella concinna conducted at South Cove, Adelaide Island, Antarctica. Nacella concinna was found to be stenohaline osmoconformer with median lower lethal salinity of 20.9 psu and medial lethal time for freshwater exposure of 2 h 18 min. A 1 h exposure to freshwater caused 14% increase in body volume and 27% loss of body fluid ions. Short-term behavioural response to exposure to meltwater involves clamp down of shell, retraction of head, cephalic and mantle margin tentacles, while on vertical surfaces 50% of limpets lose adhesion within 5 minutes. Consideration of tidal regimes suggests that individual intertidal limpet risks exposure to severe meltwater exposure about once a year.
650 07 ‡a574 -- Ecology.‡2udc
650 07 ‡a574.5 -- Marine and freshwater ecology.‡2udc
650 07 ‡a592 -- Invertebrata.‡2udc
650 07 ‡a594 -- Mollusca.‡2udc
650 07 ‡a594.3 -- Gastropoda: Nacella concinna.‡2udc
650 07 ‡a574.2 -- Organisms, influence of environment.‡2udc
650 07 ‡a574.2.043/.045 -- Organisms, influence of physical environment.‡2udc
650 07 ‡a574.24 -- Habitat conditions, effect of alterations.‡2udc
650 07 ‡a.000(410) -- British author.‡2udc
650 07 ‡aH2 -- Zoology: invertebrates.‡2local
651 #7 ‡a(*7) -- Antarctic regions.‡2udc
651 #7 ‡a(*726.5) -- Antarctic Peninsula, west coast and islands.‡2udc
651 #7 ‡a(*726.56) -- Loubet Coast.‡2udc
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