Results 91 to 100 of about 72,863 (247)

The ecological basis of fishery yield of the Puerto Rico-Virgin Islands Insular Shelf: 1987 Assessment [PDF]

open access: yes, 2006
A literature review was conducted to locate information on the flow of energy from primary producers to the fishery stocks of the Puerto Rican-Virgin Islands insular shelf.
Browder, Joan A., Jacobsen, Terri
core  

Earthquake slip surfaces identified by biomarker thermal maturity within the 2011 Tohoku-Oki earthquake fault zone. [PDF]

open access: yes, 2020
Extreme slip at shallow depths on subduction zone faults is a primary contributor to tsunami generation by earthquakes. Improving earthquake and tsunami risk assessment requires understanding the material and structural conditions that favor earthquake ...
Kirkpatrick, James D   +4 more
core  

Cenomanian – Coniacian zonation (foraminifers and calcareous algae) in the Guerrero – Morelos basin, southern Mexico

open access: yesRevista Mexicana de Ciencias Geológicas, 2018
A biostratigraphic zonation of the Cenomanian–Coniacian rocks of the Guerrero–Morelos basin (southern Mexico) is proposed. The stratigraphic distribution of 70 species of calcareous algae and benthic and planktonic foraminifers is used to characterize ...
Noemí Aguilera-Franco
doaj   +1 more source

The structuring role of macrophytes on plankton community composition and bacterial metabolism in a large subtropical shallow lake

open access: yesActa Limnologica Brasiliensia
Aim We aimed at investigating changes in major groups of plankton (bacterioplankton, phytoplankton and zooplankton) and bacterioplankton metabolism along a transect covering a littoral, macrophyte dominated zone to a pelagic, phytoplankton dominated zone
Ng Haig They, David da Motta Marques
doaj   +1 more source

Mesozoic palaeogeographic evolution of the External Zones of the Betic Cordillera [PDF]

open access: yes, 1980
14 páginas, 8 figuras.The main events characterizing the Mesozoic palaeogeographic evolution of the External Zones of the Betic Cordillera are outlined.
García-Hernández, M.   +4 more
core  

Diatom assemblages colonizing floating photovoltaic floaters are distinct from those in benthic and pelagic compartments of gravel pit lakes

open access: yesKnowledge and Management of Aquatic Ecosystems
The development of novel renewable energy technologies, such as floating photovoltaics (FPVs), is expanding, but their environmental consequences remain understudied.
Nobre Regina Lucia Guimarães   +7 more
doaj   +1 more source

Mountains in the Sea: Fishy Deep-sea Designs [PDF]

open access: yes
In this activity, students will focus on adaptations of fishes living in the mesopelagic and bathypelagic zones of the deep ocean. The students will learn about the physical location of deep water habitats along the Hudson Shelf Valley and in Hudson ...

core   +1 more source

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