Results 61 to 70 of about 1,283,533 (191)

DIVERSITY, MORPHOMETRY, AND POPULATION ABUNDANCE OF SEA URCHIN (Tripneustes gratilla) IN NORTH LOMBOK

open access: yesBiotropia: The Southeast Asian Journal of Tropical Biology
Article Highlights - The highest absolute abundance of sea urchin Tripneustes gratilla was observed in August 2023 - In 2024, the low absolute abundance of Tripneustes gratilla and the decline of sea urchin species diversity in North Lombok ...
Victor David Nico Gultom
doaj   +1 more source

Phosphoproteomes of Strongylocentrotus purpuratus shell and tooth matrix: identification of a major acidic sea urchin tooth phosphoprotein, phosphodontin

open access: yesProteome Science, 2010
Background Sea urchin is a major model organism for developmental biology and biomineralization research. However, identification of proteins involved in larval skeleton formation and mineralization processes in the embryo and adult, and the molecular ...
Mann Matthias   +2 more
doaj   +1 more source

Sensitivity of Mediterranean amphipods and sea urchins to reference toxicants

open access: yesCiencias Marinas, 2002
 Toxicity tests were performed in two amphipod species, Gammarus aequicauda and Microdeutopus gryllotalpa, and three sea urchin species, Arbacia lixula, Paracentrotus lividus and Sphaerechinus granularis.
A Cesar   +3 more
doaj   +1 more source

Genomic signatures of exceptional longevity and negligible aging in the long-lived red sea urchin

open access: yesCell Reports
Summary: The red sea urchin (Mesocentrotus franciscanus) is one of the Earth’s longest-living animals, reported to live more than 100 years with indeterminate growth, life-long reproduction, and no increase in mortality rate with age.
Jennifer M. Polinski   +3 more
doaj  

Thermal and hydrodynamic environments mediate individual and aggregative feeding of a functionally important omnivore in reef communities.

open access: yesPLoS ONE, 2015
In eastern Canada, the destruction of kelp beds by dense aggregations (fronts) of the omnivorous green sea urchin, Strongylocentrotus droebachiensis, is a key determinant of the structure and dynamics of shallow reef communities.
Desta L Frey, Patrick Gagnon
doaj   +1 more source

Effect of ocean acidification on growth, gonad development and physiology of the sea urchin Hemicentrotus pulcherrimus

open access: yes, 2013
Ocean acidification, due to diffusive uptake of atmospheric CO2, has potentially pro- found ramifications for the entire marine ecosystem. Scientific knowledge on the biological impacts of ocean acidification is rapidly accumulating; however, data are ...
H. Kurihara   +4 more
semanticscholar   +1 more source

Lack of sea urchin settlement may explain kelp forest recovery in overgrazed areas in Norway

open access: yes, 2013
In this study, we investigated whether failure of sea urchin recruitment can explain an ongoing phase shift from overgrazed, barren grounds to kelp forests along the coast of mid- Norway. Settlement of sea urchins on artificial substrates deployed in mid-
K. M. Norderhaug, H. Christie
semanticscholar   +1 more source

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