Results 1 to 10 of about 386 (120)

Shell-Boring Mechanism of the Gastropod,Purpura (Thaïs) lapillus: a Physiological Demonstration of the Role of Carbonic Anhydrase in the Dissolution of CaCO3 [PDF]

open access: bronzeAmerican Zoologist, 1969
Measurement of carbonic anhydrase (CA) activity in homogenates of accessory boring organs of the muricid gastropod, Purpura lapillus , by Meldrum and Roughton's manometric method showed that CA is always present in boring as well as in inactive ABOs, but in variable amounts.
MONIQUE CHÉTATL, JEAN FOURNIÉ
openaire   +2 more sources

Studies On Biochemical Composition Of Marine Gastropod Purpura Bufo Off Visakhapatnam Coast

open access: green, 2017
Now-a-days research works on nutritional value of molluscan species have gained importance because of their high rate of nutritional substances and used as food in many counties all over the world. But in India, consumption of molluscans as diet is very recent.
Darwin, Ch, Suneetha, K., Kavitha, K.
openaire   +3 more sources

GROWTH AND SHELL VARIATION IN THE TROPICAL EASTERN PACIFIC INTERTIDAL GASTROPOD GENUSPURPURA:ECOLOGICAL AND EVOLUTIONARY IMPLICATIONS

open access: closedThe Biological Bulletin, 1983
In this study we investigate variation in shell morphology among Purpura pansa Gould, 1853and P. columellaris Lamarck, 1822; high intertidal predatory gastropods found in the eastern tropical Pacific. Field observations on the high frequency of shells intermediate in apertural characteristics, the occurrence of cross-copulations between distinct morph ...
GERARD M. WELLINGTON, ARMAND M. KURIS
openaire   +3 more sources

The Australasian muricid gastropod Lepsiella as Pleistocene visitor to southernmost South America [PDF]

open access: yes, 2012
Six shells belonging to a muricid gastropod species were recovered from a Pleistocene marine raised beach located on Navarino Island, in southern South America.
Gordillo, Sandra, Nielsen, Sven N.
core   +3 more sources

Is There a Causal Association between Genotoxicity and the Imposex Effect? [PDF]

open access: yes, 2006
There is a growing body of evidence that indicates common environmental pollutants are capable of disrupting reproductive and developmental processes by interfering with the actions of endogenous hormones.
Colborn T   +13 more
core   +2 more sources

Mollusk diversity in the intertidal zone of Menganti Beach, Kebumen, Central Java [PDF]

open access: yes, 2021
Limited information about Mollusks in Menganti Beach, Central Java has been a strong basis for researching its diversity. This study aimed to determine the mollusks' diversity in Menganti Beach, Kebumen. The research was conducted from April to May 2020,
Pertiwi, Meilisha Putri   +2 more
core   +1 more source

A checklist of marine larval trematodes (Digenea) in molluscs from Argentina, Southwestern Atlantic coast [PDF]

open access: yes, 2015
A checklist of cercariae parasitizing marine molluscs from Patagonian coast, Argentina, based on literature sources and new records here presented. In total, cercariae of 31 species of marine digeneans, including 11 new records here presented, are known ...
Bagnato, Estefanía   +3 more
core   +2 more sources

Investigating the Upper Holocene palaeoenvironment and human subsistence strategy in the Khor Rori coastal area by studying mollusc remains from the Inqitat plateau (Dhofar, Sultanate of Oman)

open access: yesJournal of Quaternary Science, Volume 39, Issue 4, Page 608-625, May 2024.
ABSTRACT Archaeological shells have a great potential for reconstructing past environments and human–environment interactions. The Inqitat plateau (Khor Rori Archaeological Park, Oman) shows rich mollusc assemblages, present in the HAS1 settlement and in a shell midden nearby (Iron Age).
Gaia Crippa   +2 more
wiley   +1 more source

The gastropod genus Ceratostoma [PDF]

open access: yes, 1959
The species belonging to the genus Ceratostoma are listed and some are figured, as are forms that closely resemble the genus. The genus is characterized by 3 varices, foliations on the varices, and a tooth on the anterior portion of the outer lip.
Hall, Clarence A.
core  

Вплив трематодної інвазії на активність лужної фосфатази у різних органах і тканинах витушки (Mollusca: Gastropoda: Pulmonata: Bulinidae) за дії на неї іонів важких металів водного середовища [PDF]

open access: yes, 2009
Досліджено вплив трематодної інвазії на активність лужної фосфатази у мантії, гепатопанкреасі та гемолімфі Planorbarius purpura за дії на неї іонів цинку і міді водного середовища.
Киричук, Г. Є.   +1 more
core  

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