Results 71 to 80 of about 2,510 (193)

Production of ‘Aliança’ papaya seedlings under different dosages and sources of Lithothamnion sp

open access: yesFrontiers in Plant Science
IntroductionThe production ofpapaya seedlings is one of the main steps for establishing crops that present maximum quality performance. Nutritional availability is one of the factors limiting the formation process of quality seedlings, and fertilization ...
Elmo Pereira Ramos   +11 more
doaj   +1 more source

Revisiting the life cycle of Margalefidinium polykrikoides Group III

open access: yesJournal of Phycology, Volume 62, Issue 4, Page 1367-1382, August 2026.
Abstract Dinoflagellates produce cysts as a strategy to withstand environmental stressors, with nutrient depletion generally considered a key trigger for cyst production. Resting cysts are thick‐walled, typically composed of one to several layers, and characterized by a prolonged dormancy period.
Eduardo Pérez‐Vega   +3 more
wiley   +1 more source

Late Cenomanian fossil association from Morelos, Mexico—stratigraphic implications

open access: yesRevista Mexicana de Ciencias Geológicas, 2018
The fossil content of a limestone succession of the Cuautla Formation, from the central part of the State of Morelos, indicates a late Cenomanian age.
Ulises Hernández-Romano   +2 more
doaj  

Quantitative Biofacies Analysis of Upper Oligocene Reef-Coral Neritic Carbonates (Southern Pakistan)

open access: yesGeosciences
This study examines four shallow-water, reef-coral-bearing carbonate successions belonging to the Jhill Limestone Unit of the Gaj Formation, exposed in the area near Karachi (southern Pakistan).
Luca Mariani   +6 more
doaj   +1 more source

Integrative taxonomy of Harveylithon (Corallinales, Rhodophyta) reveals three new species from Korea and expanded diversity in the northwestern Pacific

open access: yesJournal of Phycology, Volume 62, Issue 4, Page 1392-1411, August 2026.
Abstract Non‐geniculate coralline genus Harveylithon includes 12 species worldwide. In this study, we propose three new species, Ha. koreanum sp. nov., Ha. longiforme sp. nov., and Ha. planiforme sp. nov., based on integrative molecular and morphological analyses.
Gwan Woung Kim   +4 more
wiley   +1 more source

Acicularia tavnae sp. nov. and other Acetabulariaceae from the Palaeocene of eastern Majevica (NE Bosnia, Dinarides)

open access: yesGeologija, 1991
A rich assemblage of calcareous algae (Dasycladaceae, Acetabulariaceae) from Kamenjak limestone belt of the Majevica mountain gives the Palaeocene age of the sediments maintained so far for the Middle Eocene.
Rajka Radoičić
doaj  

Microfossils, paleoenvironments and biostratigraphy of the Mal Paso Formation (Cretaceous, upper Albian), State of Guerrero, Mexico

open access: yesRevista Mexicana de Ciencias Geológicas, 2018
Microfossils from an outcrop of the coral reef and rudist-bearing calcareous upper member of the Mal Paso Formation just north of Chumbítaro, State of Michoacán, Mexico, indicate a deepening trend and transition from nearshore through outer shelf ...
Harry F. Filkorn, Robert W. Scott
doaj  

Some Permian Calcareous Algae From the Vicinity of Ankara

open access: yesBulletin of the Mineral Research and Exploration, 1960
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Utarit BİLGÜTAY
doaj  

Temporal Diversity Shifts in Subtidal Tubastraea-Invaded Rocky Shores of Arraial do Cabo Bay, Southeastern Brazil

open access: yesDiversity
Invasive species can alter community composition and ecosystem functioning. In the subtidal rocky shores of Arraial do Cabo Bay, southeastern Brazil, the invasive coral Tubastraea spp. has established populations, raising concerns about long-term impacts
Bruno Pereira Masi   +5 more
doaj   +1 more source

Reef bioconstructors of the Rocas Atoll, Equatorial South Atlantic [PDF]

open access: yesBiotemas, 2011
This study presents an analysis of reef bioconstructors at the Rocas Atoll, Brazil’s Northeast, sampled in January and February 2008. The results showed the presence of a community made up mainly of calcareous algae (Porolithon pachydermum, Sporolithon ...
Marcelo de Oliveira Soares   +2 more
doaj  

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