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The digestive tract of the amberjack Seriola dumerili, Risso: a light and scanning electron microscope study
The histology of the digestive tract of the amberjack (Seriola dumerili, Risso) was studied using light and scanning electron microscopy. The anterior oesophagus mucosa displays primary and secondary… Expand
Histopathological changes induced by lindane (?-HCH) in various organs of fishes
This paper reports the histological analysis of various organs of Mugil sp., Cyprinus carpio and Barbus sp. after an accidental discharge of lindane (?-Hexachloro-cyclohexane - ?-HCH-) into the… Expand
Foraminiferal assemblages from the bajocian global stratotype section and point (GSSP) at Cape Mondego (Portugal)
A detailed study of the benthic foraminiferal assemblages at the Bajocian Global Stratotype Section and Point (GSSP— Murtinheira section, Lusitanian Basin, western Portugal) presented herein… Expand
Cycle reproducteur de la palourde Ruditapes philippinarum (Adams & Reeve, 1850) de la côte sud ouest atlantique (Espagne)
Cuantificación y alteraciones histopatológicas producidas por concentraciones subletales de cobre en fundulus heteroclitus
Fed and starved Fundulus heteroclitus specimens were exposed for 30 days to sublethal copper concentrations (800 µg Cu2+/L). The accumulation of copper and ...
Fine structure of the intestine development in cultured sea bream larvae
At hatching, the gut cells of Sparus aurata are quite undifferentiated; however, slight ultrastructural differences can already be distinguished between the presumptive intestinal regions. The… Expand
Histochemical characteristics of the vitellogenic oocytes of the bluefin tuna, Thunnus thynnus L.
Resumen en: Very little information is available with respect to dynamic aspects of oocyte development and to yolk composition of tuna species. Since histological a...
Ammonite-benthic Foraminifera turnovers across the Lower-Middle Jurassic transition in the Lusitanian Basin (Portugal)
Abstract This paper describes and characterises the co-occurrence of ammonite and benthic foraminiferal assemblages across the Sao Giao outcrop (Central Portugal), a reference section for the… Expand
Foraminifera of the Toarcian-Aalenian boundary from the Lusitanian Basin (Portugal): a paleoecological analysis
The detailed study of 37 well preserved benthic foraminiferal assemblages sampled throughout the upper Toarcian-middle Aalenian in two well calibrated sections representing different facies within… Expand