Results 21 to 30 of about 881 (187)

Ontogenesis of the digestive gland through the planktotrophic stages of Strombus gigas

Journal of Molluscan Studies, 2020
ABSTRACT The queen conch, Strombus gigas (Linnaeus, 1758), is a marine mollusc of ecological and economic importance in the Caribbean. Its populations are declining due to overexploitation. We describe ontogenesis of the digestive gland in S. gigas during the larval stages. Larvae were studied over a period of 42 d in laboratory culture,
Dalila Aldana Aranda, Martha Enríquez Díaz, Olivier Gros   +2 more
openaire   +2 more sources

Species which may act as vectors or reservoirs of diseases covered by the Animal Health Law: Listed pathogens of crustaceans. [PDF]

EFSA J, 2023
Abstract Vector or reservoir species of three diseases of crustaceans listed in the Animal Health Law were identified based on evidence generated through an extensive literature review, to support a possible updating of Regulation (EU) 2018/1882.
EFSA Panel on Animal Health and Welfare (AHAW), Nielsen SS, Alvarez J, Bicout D, Calistri P, Canali E, Drewe JA, Garin-Bastuji B, Gonzales Rojas JL, Smith CG, Herskin M, Michel V, Miranda Chueca MA, Padalino B, Spoolder H, Ståhl K, Velarde A, Viltrop A, Winckler C, Arzul I, Dharmaveer S, Olesen NJ, Schiøtt M, Sindre H, Stone D, Vendramin N, Alemu S, Antoniou SE, Aznar I, Barizzone F, Dhollander S, Gnocchi M, Karagianni AE, Kero LL, Munoz Guajardo IP, Roberts H.   +35 more
europepmc   +2 more sources

Nematopsis Schneider, 1892 in Nerite Gastropods From Saint Kitts, With a Phylogenetic Study of the Genus, and Placement Within the Phylum Apicomplexa Levine, 1970. [PDF]

J Eukaryot Microbiol
ABSTRACT The Apicomplexa are obligate unicellular parasites found in terrestrial and aquatic environments. Nematopsis are found infecting marine invertebrates in a life cycle involving mollusks and crustaceans. In the present study, mantle and muscle tissues from nerite gastropods were microscopically examined for Nematopsis using wet mounts and ...
Herbert NAM, Kristmundsson Á, Vazquez N, Hoag K, Freeman MA.   +4 more
europepmc   +2 more sources

Geographical variation in the genetic diversity and composition of the endangered Queen Conch Strombus gigas (Mesogastropoda: Strombidae) from Yucatán, México

Revista de Biología Tropical, 2011
In Mexico and elsewhere in the Caribbean, the queen conch Strombus gigas is an endangered species. Understanding the genetic connectivity of their populations will support management strategies for long term conservation of the species. Genetic diversity
Ricardo Pérez-Enriquez, Francisco Javier Garcia-Rodriguez, Gabriela Mendoza-Carrion, Claudia Padilla   +3 more
doaj   +3 more sources

Variación estacional de lípidos en varios tejidos del cambute Strombus gigas (Mesogastropoda: Strombidae), en Quintana Roo, México

Revista de Biología Tropical, 1998
Se determinó la variación mensual de lípidos en varios tejidos del cambute Strombus gigas (L.), en Banco Chinchorro, Quintana Roo, México durante un año.
Nancy Brito Manzano, Dalila Aldana Aranda   +1 more
doaj   +1 more source

Eco-etología básica del caracol rosa Strombus gigas (Mesogastropoda: Strombidae), en Xel-Há, Yucatán, Caribe mexicano

Revista de Biología Tropical, 2014
El caracol rosa Strombus gigas tiene importancia pesquera en el Caribe, cuyas poblaciones se encuentran sobreexplotadas. Desde la década de 1980 se han desarrollado estudios de acuacultura, manejo del recurso y rehabilitación de áreas con la finalidad de
Mariana Noguez Núñez, Dalila Aldana Aranda   +1 more
doaj   +1 more source

A survey of Dinophysis spp. and their potential to cause diarrhetic shellfish poisoning in coastal waters of the United States

Journal of Phycology, Volume 59, Issue 4, Page 658-680, August 2023., 2023
Abstract Multiple species of the genus Dinophysis produce diarrhetic shellfish toxins (okadaic acid and Dinophysis toxins, OA/DTXs analogs) and/or pectenotoxins (PTXs). Only since 2008 have DSP events (illnesses and/or shellfish harvesting closures) become recognized as a threat to human health in the United States.
Nour Ayache, Brian D. Bill, Michael L. Brosnahan, Lisa Campbell, Jonathan R. Deeds, James M. Fiorendino, Christopher J. Gobler, Sara M. Handy, Neil Harrington, David M. Kulis, Pearse McCarron, Christopher O. Miles, Stephanie K. Moore, Satoshi Nagai, Vera L. Trainer, Jennifer L. Wolny, Craig S. Young, Juliette L. Smith   +17 more
wiley   +1 more source

Is Ocean Acidification Really a Threat to Marine Calcifiers? A Systematic Review and Meta‐Analysis of 980+ Studies Spanning Two Decades

Small, Volume 18, Issue 35, September 1, 2022., 2022
Marine calcifiers are widely believed to be impaired by ocean acidification, but this concept has been increasingly challenged by recent evidence. This systematic review and meta‐analysis of nearly 1000 studies reveal that many calcifiers are indeed more resistant to ocean acidification than initially thought, which can result from the positive effects
Jonathan Y. S. Leung, Sam Zhang, Sean D. Connell   +2 more
wiley   +1 more source

Biomineralized Materials as Model Systems for Structural Composites: 3D Architecture

Advanced Materials, Volume 34, Issue 20, May 19, 2022., 2022
Biomineralized load‐bearing materials are intrinsically 3D composites and are widely used as model systems for developing novel structural materials with improved mechanical performance. This review presents recent progress in understanding the 3D architectural design of biomineralized composites.
Zian Jia, Zhifei Deng, Ling Li
wiley   +1 more source

Testing small‐scale ecological gradients and intraspecific differentiation for hundreds of kelp forest species using haplotypes from metabarcoding

Molecular Ecology, Volume 30, Issue 13, Page 3355-3373, July 2021., 2021
Abstract DNA metabarcoding has been increasingly used to detail distributions of hundreds of species. Most analyses focus on creating molecular operational taxonomic units (MOTUs) from complex mixtures of DNA sequences, but much less common is use of the sequence diversity within these MOTUs.
Peter Shum, Stephen R. Palumbi
wiley   +1 more source