Results 11 to 20 of about 1,339,551 (340)

Tool Use by Four Species of Indo-Pacific Sea Urchins [PDF]

open access: yesJournal of Marine Science and Engineering, 2019
We compared the covering behavior of four sea urchin species, Tripneustes gratilla, Pseudoboletia maculata, Toxopneustes pileolus, and Salmacis sphaeroides found in the waters of Malapascua Island, Cebu Province and Bolinao, Panagsinan Province ...
Glyn A. Barrett   +5 more
doaj   +3 more sources

Testing sea urchin and green sea turtle consumption of the allelopathic macroalga Galaxaura divaricata [PDF]

open access: yesEcology and Evolution
Galaxaura divaricata is a partially calcified macroalga that hampers coral recruitment, growth, and recovery via the excretion of allelopathic secondary metabolites. Herbivorous fishes are not major consumers of Galaxaura spp.
Carolin Nieder   +5 more
doaj   +2 more sources

Sea urchin harvest inside marine protected areas: an opportunity to investigate the effects of exploitation where trophic upgrading is achieved [PDF]

open access: yesPeerJ, 2022
Background Marine protected areas (MPAs) usually have both positive effects of protection for the fisheries’ target species and indirect negative effects for sea urchins. Moreover, often in MPAs sea urchin human harvest is restricted, but allowed.
Giulia Ceccherelli   +22 more
doaj   +2 more sources

Understanding the impact of environmental variability and fisheries on the red sea urchin population in Baja California

open access: yesFrontiers in Marine Science, 2022
IntroductionThe red sea urchin fishery is one of the most important fisheries in Baja California and the only urchin fishery in México; yet little is known on understanding how local, regional, and oceanic environmental variability may affect red sea ...
Alfonso Medellín–Ortiz   +6 more
doaj   +1 more source

Behavioral responses across a mosaic of ecosystem states restructure a sea otter–urchin trophic cascade

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2021
Significance Ecological processes that enhance or dampen the likelihood of shifts between top-down (i.e., predator-driven) and bottom-up (i.e., resource-driven) forcing underpin community regulation, functioning, and stability.
Joshua G. Smith   +5 more
semanticscholar   +1 more source

Influence of Winter Storms on the Sea Urchin Pathogen Assemblages

open access: yesFrontiers in Marine Science, 2022
In recent years, recurrent sea urchin mass mortalities in the Canary Islands have been registered. These mortality-related events have decimated 93% of the eastern Atlantic populations of the barren-forming sea urchin Diadema africanum.
Camila Esperanza Salazar-Forero   +9 more
doaj   +1 more source

Trophic cascades induced by lobster fishing are not ubiquitous in southern California kelp forests. [PDF]

open access: yesPLoS ONE, 2012
Fishing can trigger trophic cascades that alter community structure and dynamics and thus modify ecosystem attributes. We combined ecological data of sea urchin and macroalgal abundance with fishery data of spiny lobster (Panulirus interruptus) landings ...
Carla M Guenther   +4 more
doaj   +1 more source

Seafood Choice and Consumption Behavior: Assessing the Willingness to Pay for an Edible Sea Urchin

open access: yesFoods, 2023
Consumers’ behavior towards sea urchin and preferences towards their origin certification and place of consumption may condition their market. In this context, the aim of this research was to elicit the preferences and perceptions of Italian sea urchin ...
Alessandro Petrontino   +7 more
doaj   +1 more source

The Rearing of Sea Urchins [PDF]

open access: yesNature, 1911
I ENCLOSE a photograph which may interest your readers. It is one of a water-colour painting of a seaurchin, magnified 4 diameters, which has been reared in my laboratory by Dr. Cresswell Shearer. It is a hybrid, a cross between Echinus milearis (male) and E. esculentus (female), both obtained from the Plymouth Marine Laboratory. The cross was effected
openaire   +7 more sources

Nutritional Value of Sea Urchin Roe (Strongylocentrotidae)—Study of Composition and Storage Conditions

open access: yesSeparations, 2021
Although the roe of sea urchins inhabiting the Far Eastern seas possesses many healing properties and may be used as a dietary product, a reduction and deterioration in its nutritional quality during storage occurs. Therefore, in order to make sea urchin
Victoria A. Matveeva   +5 more
doaj   +1 more source

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