Results 91 to 100 of about 6,014 (204)

Insights Into the Ecomorphology of the Blue Shark (Prionace glauca) in the Adriatic Sea (Central Mediterranean Sea)

open access: yesEcology and Evolution, Volume 15, Issue 11, November 2025.
This study examines how the morphology of Mediterranean blue sharks (Prionace glauca ) changes throughout their development. Using linear and geometric morphometrics, it reveals that juveniles and adults differ in fin and head shape, reflecting adaptations to different ecological and swimming demands.
P. Carbonara   +9 more
wiley   +1 more source

Beyond the Meal: Trophic Controls by Pelagic and Demersal Chondrichthyes in Two Different Mediterranean Marine Food Webs

open access: yesEcology and Evolution, Volume 15, Issue 11, November 2025.
Pelagic and demersal sharks played different top‐down controls in the food web. Pelagic sharks act as apex predators impacting mesoconsumers. Trophic controls patterns by demersal sharks change according to ecosystem traits. ABSTRACT Pelagic and demersal Chondrichthyes can assume different patterns of trophic controls on marine food webs, sustaining ...
P. Ricci   +7 more
wiley   +1 more source

Comparison on vertical distribution of pelagic copepod abundance, biomass and community structure between Atlantic and Pacific sector of the Arctic Ocean [PDF]

open access: yes, 2018
Recently, a great reduction of sea ice coverage has been reported for the Arctic Ocean during summer. The reduction has been reported to be greater for regions which connect the Arctic with the Atlantic and the Pacific Ocean, respectively.
Abe, Yoshiyuki   +5 more
core  

Taxonomic diversity and identification problems of oncaeid microcopepods in the Mediterranean Sea [PDF]

open access: yes, 2009
The species diversity of the pelagic microcopepod family Oncaeidae collected with nets of 0.1-mm mesh size was studied at 6 stations along a west-to-east transect in the Mediterranean Sea down to a maximum depth of 1,000 m.
A Skovgaard   +70 more
core   +1 more source

Microbial and Metazoan Activity in Monterey Bay, CA Recorded in Nitrogen Isotope Ratios of Sinking and Suspended Particles

open access: yesJournal of Geophysical Research: Oceans, Volume 130, Issue 10, October 2025.
Abstract Particulate organic matter supports pelagic food webs, and the activity of these food webs attenuates the flux of carbon into the ocean interior. Understanding the extent to which microbial and metazoan heterotrophs influence particle dynamics is essential to describing the biological carbon pump and nutrient delivery to deep ecosystems.
S. C. Doherty   +3 more
wiley   +1 more source

Geographic distribution of archaeal ammonia oxidizing ecotypes in the Atlantic Ocean

open access: yesFrontiers in Microbiology, 2016
In marine ecosystems, Thaumarchaeota are most likely the major ammonia oxidizers. While ammonia concentrations vary by about two orders of magnitude in the oceanic water column, archaeal ammonia oxidizers (AOA) vary by only one order of magnitude from ...
Eva eSintes   +4 more
doaj   +1 more source

Visual ecology in challenging environments: How organisms evolve in extremes of light and adapt to shifting conditions

open access: yesFunctional Ecology, Volume 39, Issue 10, Page 2556-2560, October 2025.
Abstract Sensory systems are under constant pressure from environmental changes, and vision offers a particularly rich lens to study adaptation. In this Special Feature, we present a collection of contributions that explore the roles of visual systems in extreme or dynamic environments.
Zuzana Musilova, Sara Mae Stieb
wiley   +1 more source

DNA stable‐isotope probing reveals potential key players for microbial decomposition and degradation of diatom‐derived marine particulate matter

open access: yesMicrobiologyOpen, 2020
Microbially mediated decomposition of particulate organic carbon (POC) is a central component of the oceanic carbon cycle, controlling the flux of organic carbon from the surface ocean to the deep ocean.
Ying Liu   +5 more
doaj   +1 more source

Hiding in Plain Sight: Elopomorph Larvae Are Important Contributors to Fish Biodiversity in a Low-Latitude Oceanic Ecosystem

open access: yesFrontiers in Marine Science, 2020
Leptocephalus larvae of elopomorph fishes are a cryptic component of fish diversity in nearshore and oceanic habitats. However, identifying those leptocephali can be important in illuminating species richness in a region.
Jon A. Moore   +4 more
doaj   +1 more source

Oceanus. [PDF]

open access: yes, 1972
v.
Woods Hole Oceanographic Institution.
core   +1 more source

Home - About - Disclaimer - Privacy