Results 91 to 100 of about 1,405,896 (309)

Mapping the distribution of sea urchin (Echinoidea) and benthic habitat using drone in the waters of Lancang Island [PDF]

open access: yesBIO Web of Conferences
Sea urchins are valuable marine creatures that live in the waters of Indonesia, and typically found in seagrass and coral reefs. This study aimed to determine the distribution of sea urchins and the benthic characteristics that serve as their habitat ...
Sastraantara Muhammad Sony   +2 more
doaj   +1 more source

Edible sea urchins : biology and ecology /

open access: yes, 2001
Sea urchins are a major component of marine environments found throughout the world's oceans. A major model for research in developmental biology, they are also of major economic importance in many regions and interest in their management and aquaculture
Lawrence, John M.
core  

Regrowth of kelp after removal of sea urchins (Strongylocentrotus droebachiensis) [PDF]

open access: yes, 2019
Project manager Pernilla CarlssonWith few natural predators, green sea urchins (Strongylocentrotus droebachiensis) have grown in numbers, grazed down large kelp forest areas in Northern Norway into urchin barrens.
Christie, Hartvig C   +1 more
core  

Externally Visible Flourochrome Marks and Allometrics of Growing Sea Urchins

open access: yes, 2013
Externally visible, growing calcitic structures can be marked using fluorochromes. Such marks are useful for field recapture studies in ecology, evolution, and aquaculture as well as for studies on mechanisms of growth and development.
Salyers, Jordan M.   +4 more
core   +1 more source

Voices From the Coast: Stakeholder Participation and Perception on Creating a Marine Protected Area

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study explores participatory processes in the context of marine conservation, with a specific focus on recent initiatives undertaken by the Apulia region in Italy to establish a new Marine Protected Area (MPA). Employing a qualitative cross‐sectional methodology, the study investigates how local communities perceive and engage with the ...
Giampiero Palazzo   +3 more
wiley   +1 more source

The use of ULVA as a feed supplement in the development of an artificial diet and feeding regimes to produce export quality roe from the sea urchin Tripneustes gratilla (Linnaeus)

open access: yes, 2013
Includes bibliographical references.Tripneustes gratilla is a fast growing, shallow water echinoid, which occurs across the Indo-Pacific, with its south-western limit in warm, temperate waters of South Africa. The success of T.
Cyrus, Mark Digby
core  

Appendix D. Model selection results for exposed sea urchins.

open access: yes, 2016
Model selection results for exposed sea ...
Nick T. Shears (2905421)   +2 more
core   +1 more source

MXenes as a Versatile Platform for High‐Energy‐Density Asymmetric Supercapacitors

open access: yesCarbon Energy, EarlyView.
MXenes with high conductivity and tunable surface chemistry are reviewed as advanced electrodes for asymmetric supercapacitors. MAX‐phase synthesis, surface and interlayer engineering, defect modulation, and composite designs are discussed, highlighting enhanced ion transport, pseudocapacitance, energy density, cycling stability, and sustainable routes
Seul‐Yi Lee   +3 more
wiley   +1 more source

MICROPAPILLAE IN SEA URCHIN EGGS* [PDF]

open access: yesDevelopment, Growth and Differentiation, 1976
Sea urchin eggs fixed in a glutaraldehyde-calcium chloride mixture have "micropapillae" with a dense content. If these structures are real, they are likely to be sites where a fusion with the spermatozoon can take place. It is possible however that they represent some kind of preparation artefact without a structural counterpart in the living state.
openaire   +2 more sources

Acid-base regulation in the sea urchin Parechinus angulosus during CO₂-induced seawater acidification

open access: yes, 2013
Ocean acidification is predicted to have adverse effects on the physiologies of marine organisms, particularly those that produce calcified structures. Extracellular homeostasis is considered to be critical to mediating the effects of ocean acidification.
Dyer, Alexei
core  

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