Results 11 to 20 of about 56,693 (262)

Comparative morpho‐physiological aspects and transcriptomics of the gonads from wild caught and enhanced green sea urchin (Strongylocentrotus droebachiensis)

open access: yesAquaculture, Fish and Fisheries, 2022
There is a growing interest in sea urchin roe enhancement around the world, but relatively little is known about the physical differences between enhanced and wild sea urchin roe and the causes of any differences.
I. Mathisen Sætra   +3 more
doaj   +1 more source

Alterations in sea urchin (Mesocentrotus nudus) microbiota and their potential contributions to host according to barren severity

open access: yesnpj Biofilms and Microbiomes, 2023
Sea urchins are biotic factors driving the decline of kelp forests in marine ecosystems. However, few studies have analyzed the microbiota of surviving sea urchins in barren regions with scarce diet resources.
Joon-Young Park   +4 more
doaj   +1 more source

Contamination of sea urchin Mesocentrotus nudus by radiocesium released during the Fukushima Daiichi Nuclear Power Plant accident.

open access: yesPLoS ONE, 2022
Countless marine organisms were polluted with radioactive materials that were dispersed when the Fukushima Daiichi Nuclear Power Plant (FDNPP) was damaged in 2011 by the Great East Japan Earthquake.
Mst Nazira Akhter Rithu   +4 more
doaj   +2 more sources

Distinct realized physiologies in green sea urchin (Strongylocentrotus droebachiensis) populations from barren and kelp habitats

open access: yesFACETS, 2022
Overgrazing of habitat-forming kelps by sea urchins is reshaping reef seascapes in many temperate regions. Loss of kelp, in particular as a food source, may alter individual consumer physiology, which in turn may impair their ability to respond to ...
Jasmin M. Schuster   +3 more
doaj   +1 more source

Characteristic of Microplastic on Coral Reef Sediment and Sea Urchin (Diadema sp.) in Tidung Island, Jakarta Bay, Indonesia

open access: yesIlmu Kelautan, 2023
Microplastics are recognized as common contaminants of coral ecosystem in Tidung Island, affecting both sediment and sea urchins residing in this environment. Therefore, this study aimed to determine the characteristics of microplastics found in sediment,
Sulistiowati Sulistiowati   +4 more
doaj   +1 more source

Urchin Searchin’: Red urchins and drift kelp found at 284 m in the mesophotic zone

open access: yesCiencias Marinas, 2020
Red sea urchins (Mesocentrotus franciscanus) are kelp-associated ecosystem engineers found in rocky habitats throughout the North Pacific from Baja California, Mexico, to Japan.
Alexander T Lowe, Aaron WE Galloway
doaj   +1 more source

Echinoderms display morphological and behavioural phenotypic plasticity in response to their trophic environment. [PDF]

open access: yesPLoS ONE, 2012
The trophic interactions of sea urchins are known to be the agents of phase shifts in benthic marine habitats such as tropical and temperate reefs. In temperate reefs, the grazing activity of sea urchins has been responsible for the destruction of kelp ...
Adam D Hughes   +4 more
doaj   +1 more source

Digestive Enzyme Activities and Gut Emptying Are Correlated with the Reciprocal Regulation of TRPA1 Ion Channel and Serotonin in the Gut of the Sea Urchin Strongylocentrotus intermedius

open access: yesBiology, 2022
The energetic link in the benthic community is based on physiological characteristics of the low food absorption efficiency of sea urchins. Low food absorption efficiency of sea urchins is correlated with the activity of digestive enzymes and the ...
Jingyun Ding   +8 more
doaj   +1 more source

Identification of sea urchins in melonguane coastal area using Multilayer Perceptron Neural Network

open access: yesIlkom Jurnal Ilmiah, 2022
Sea urchins (Echinoidea) are marine biota that is found in Indonesian waters and there are 950 types of sea urchins scattered throughout the world. This study aims to classify types of sea urchins based on the characteristics contained in sea urchin ...
Andar Alwein Pinilas   +2 more
doaj   +1 more source

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