Results 91 to 100 of about 492,862 (291)

Setting a precautionary catch limit for Antarctic krill [PDF]

open access: yes, 2002
A revised precautionary catch limit for Antarctic krill (Euphausia superba) in the Scotia Sea of 4 million tons was recently adopted by the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR).
Brandon, M. A.   +16 more
core   +2 more sources

Ontogenetic changes and sexual dimorphism in the cranium and mandible of the Atlantic walrus (Odobenus rosmarus rosmarus L.)

open access: yesThe Anatomical Record, EarlyView.
Abstract Walruses have been an important subsistence and cultural resource for humans and have been exploited for millennia across their distribution. This exploitation has contributed to severe declines in several populations and local extirpations.
Katrien Dierickx   +6 more
wiley   +1 more source

Rapid habitat fragmentation and niche shifting of an estuarine dolphin driven by coastal urbanization

open access: yesGlobal Ecology and Conservation
Estuaries are critical habitats for many marine species, but are also experiencing rapid human-induced environmental change, posing great challenges for conservation.
Yuke Zhang   +6 more
doaj   +1 more source

Bridging archaeology and marine conservation in the Neotropics. [PDF]

open access: yesPLoS One, 2023
Fossile T   +12 more
europepmc   +1 more source

Making the Political Win to Save Bristol Bay Permanent [PDF]

open access: yes, 2017
This GrantCraft case study, developed for Foundation Center's FundingtheOcean.org portal, explores how the Oak Foundation, a supporter of marine conservation in Alaska, responded when national policy lifted protections from Bristol Bay.
Anna Pond
core  

The Middle Eastern Biodiversity Network: Generating and sharing knowledge for ecosystem management and conservation [PDF]

open access: yes, 2009
Despite prevailing arid conditions, the diversity of terrestrial and freshwater biota in the Middle East is amazingly high and marine biodiversity is among the highest on Earth.
Al-Jumaily, Masaa   +5 more
core   +2 more sources

3D anatomical atlas of the heads of male and female adult Chamaeleo calyptratus

open access: yesThe Anatomical Record, EarlyView.
The veiled chameleon is a model organism in reptile development research. Utilizing contrast‐enhanced microCT and deep learning segmentation models, we have generated the first digital atlases of the skull, nervous system, cranial muscles and hyolingual muscles.
Alice Leavey   +3 more
wiley   +1 more source

Environmental Factors, Not Biotic Competitive Interactions, Drive the Relative Abundance of Diatoms and Chlorophyta in the Coastal Areas of the Beibu Gulf: Evidence From 18S rDNA Metabarcoding and Partial Least Squares‐Path Modeling Analysis

open access: yesEcology and Evolution
Diatoms and Chlorophyta are two major phyla of phytoplankton in marine ecosystems. The quantitative detection of the population succession and the interaction between them in natural marine ecosystems is a key challenge that ecologists face.
Chunyan Peng   +9 more
doaj   +1 more source

Histology and fossil diagenesis of a pterosaur tooth from the Crato Formation (Lower Cretaceous of Brazil)

open access: yesThe Anatomical Record, EarlyView.
Abstract Pterosaur dental biology remains poorly understood despite its importance for comprehending feeding strategies and flight adaptations. Here, we present the first comprehensive histological analysis of an ornithocheiriform pterosaur tooth from the Lower Cretaceous Crato Formation (Santana Group, Northeast Brazil).
Tito Aureliano   +3 more
wiley   +1 more source

Mapping the “Ghost Fleet of Mallows Bay”, Maryland with drone-based remote sensing

open access: yesScientific Data
Shipwrecks hold significant historical, archaeological, and ecological value. In this dataset, we present two high-resolution (~0.60 cm & 3.0 cm GSD) orthomosaics and associated data that accurately maps the so-called “Ghost Fleet of Mallows Bay”, a ...
Elizabeth C. White   +4 more
doaj   +1 more source

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