Results 61 to 70 of about 417 (152)

Intramolecular Modulation of Serine Protease Inhibitor Activity in a Marine Cyanobacterium with Antifeedant Properties

open access: yesMarine Drugs, 2010
Extracts of the Floridian marine cyanobacterium Lyngbya cf. confervoides were found to deter feeding by reef fish and sea urchins (Diadema antillarum).
Susan Matthew   +5 more
doaj   +1 more source

Assessment of Elkhorn Coral Populations and Associated Herbivores in Akumal, Mexico

open access: yesFrontiers in Marine Science, 2019
Coral decline in the Caribbean is marked by the loss of habitat-forming corals, such as elkhorn coral (Acropora palmata). Elkhorn coral recovery has been isolated and patchy, but recently a “re-sheeting” phenomenon, in which elkhorn tissue grows over ...
Laura Mudge   +4 more
doaj   +1 more source

The Multifaceted Role of Gut Microbiota in Sea Urchin Digestion: Diversity, Function, Symbiosis, and Carbohydrate Degradation

open access: yesAquaculture Research, Volume 2024, Issue 1, 2024.
Sea urchins, ecologically important marine species, host a complex gut microbiota that plays a significant role in their digestion, nutrient acquisition, and overall health. The gut microbes, along with endogenous enzymes, facilitate the breakdown of macroalgae and other food sources.
Yining Zheng   +11 more
wiley   +1 more source

A recent increase in the abundance of the echinoid Diadema antillarum in Dominica (Lesser Antilles): 2001-2005

open access: yesRevista de Biología Tropical, 2006
Diadema antillarum populations at many Caribbean locations have failed to recover from the pathogen-induced mortality events of the 1980s. It has become clear that the massive decline of this herbivorous urchin and the wide-spread absence of a population
S. C. C Steiner, S. M Williams
doaj  

NITROGENOUS EXCRETION IN THE TROPICAL SEA URCHIN DIADEMA ANTILLARUM PHILIPPI

open access: yesThe Biological Bulletin, 1967
Diadema antillarum is ammonotelic in its excretion of nitrogenous waste products. It excretes approximately 60% of its total nonprotein nitrogen as ammonia and approximately 30% as amino acids. No urea, uric acid or other purine bases were found to be excreted.
openaire   +4 more sources

Evaluación de "Acropora palmata" (Lamarck, 1816) y "Diadema antillarum" Philippi y Agassiz, 1863 en las crestas arrecifales de Playa Baracoa (Provincia Artemisa) y rincón de Guanabo (Provincia La Habana), Cuba

open access: yesRevista de Investigaciones Marinas, 2018
Las crestas arrecifales son un recurso de significativo valor natural y ecológico. En esta investigación se evaluaron las poblaciones de Acropora palmata y Diadema antillarum en las crestas arrecifales de playa Baracoa y Rincón de Guanabo.
Fredy Hernández-Delgado   +2 more
doaj  

Abundancia de Diadema antillarum (Echinodermata: Echinoidea) en las costas de Venezuela

open access: yesRevista de Biología Tropical, 2006
Diadema antillarum es un erizo de aguas someras del Atlántico tropical cuyas poblaciones fueron diezmadas entre los años 1983-1984 con mortandades de hasta 87-100 %.
Nicida Noriega   +2 more
doaj  

Estado de Crestas de Arrecifes en el Parque Nacional Jardines de la Reina, Cuba.

open access: yesRevista de Investigaciones Marinas, 2023
Se muestrearon en febrero 2016 cuatro crestas de arrecifes en el Parque Nacional Jardines de la Reina, Cuba, para conocer su estado. Se evaluaron indicadores ecológicos sobre el Sistema de Escalas para la Clasificación y Puntaje de Condición del Bentos ...
Leslie Hernández-Fernández   +2 more
doaj  

Use of Diadema antillarum Spines by Juvenile Fish and Mysid Shrimp

open access: yesGulf and Caribbean Research, 2007
The long-spined sea urchin (Diadema antillarum Phillipi) is an important element in the structure and function of coral reef communities. Regarded as a key herbivore in reef communities, grazing by D. antillarum shifts community dominance from macroalgal cover to live coral (Lessios 2005, Tuya et al. 2004).
Townsend, Taryn, Bologna, Paul A.X.
openaire   +3 more sources

SENDEROS SUBMARINOS DEL PARQUE NACIONAL CAHUITA: DESCRIPCIÓN BIOLÓGICA

open access: yesRevista Ciencias Marinas y Costeras, 2011
Los recorridos en los Senderos Submarinos del Parque Nacional Cahuitapermitieron identificar los organismos marinos presentes. La descripción biológica de la flora y la fauna se basó en la metodología de línea transecto y observación directa.
Gerardo E. Palacios Martínez
doaj  

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