Results 21 to 30 of about 126 (89)
Euspermatozoon structure and euspermiogenesis in Cerithidea cingulata (Gmelin, 1791) (Caenogastropoda : Potamididae) [PDF]
The ultrastructural characteristics of euspermatogenesis and mature euspermatozoa of Cerithidea cingulata are described. Euspermatogonia possesses a large round concentric nucleus with one or two nucleoli.
Jintamas Suwanjarat, Sakol Suwaluk
doaj
In this work focussing on the Cenozoic continental carbonates of the Paris Basin, new information is brought to light on the spatialisation of continental carbonates facies thanks to correlations between coastal and palustrine environments. It presents arguments for distinguishing between marine (lagoon‐type) and continental (lake‐type) deposits based ...
Kévin Moreau +4 more
wiley +1 more source
The fossil record of freshwater Gastropoda – a global review
ABSTRACT Gastropoda are an exceptionally successful group with a rich and diverse fossil record. They have conquered land and freshwater habitats multiple times independently and have dispersed across the entire globe. Since they are important constituents of fossil assemblages, they are often used for palaeoecological reconstruction, biostratigraphic ...
Thomas A. Neubauer
wiley +1 more source
Detection of intact polyene pigments in Miocene gastropod shells
Abstract Polyene pigments represent a major class of pigments in present‐day organisms. Their occurrence in fossils has been frequently discussed, but to date no spectroscopic evidence has been found. Here, we use in situ Raman spectroscopy to examine the chemistry of exceptionally well‐preserved gastropod shells with colour preservation from the ...
Klaus Wolkenstein +2 more
wiley +1 more source
MUDWHELKS (GASTROPODA: POTAMIDIDAE) FROM MANGROVES OF UJUNG KULON NATIONAL PARK, BANTEN
A study of Potamididae snail from the mangrove ecosystem in Ujung Kulon National Park was conducted, regarding to its diversity, shell characters and habitat characters. This study was carried out in 2008 during drought and rainy season.
NOVA MUJIONO
doaj
Mangrove or Mangal vegetation are typical wetland ecosystems found in coastal deposits of mud and silt throughout the tropics and some distance into the sub-tropical latitude.
Zia Ullah +2 more
doaj +1 more source
Mangrove merupakan tumbuhan di kawasan pantai dan estuari yang terpengaruh oleh pasang surut. Mangrove berperan sebagai tempat pemijahan, pembesaran, dan sumber makanan bagi beragam biota, salah satunya adalah moluska.
Kadek Ayu Puspita Sari +2 more
doaj +1 more source
POPULATION DISTRIBUTION OF MOLLUSKS IN MANGROVE FORESTS, PAKISTAN.
The present study was aimed to assess the population distribution of molluscs in mangroves forests of Pakistan using multivariate analysis. Five different locations of Pakistan coast were selected and 28 stands were sampled by using 1x1 m2 quadrats ...
KANWAL NAZIM +2 more
doaj
Most laboratory assessments of toxicity and bioaccumulation of heavy metals have been concentrated on the accumulation of these metal ions when exposed singly to the test organisms.
A.A Otitoloju, K.N Don-Pedro
doaj
67,000 years of coastal engagement at Panga ya Saidi, eastern Africa. [PDF]
Faulkner P +7 more
europepmc +1 more source

