Results 41 to 50 of about 10,206 (272)

Annotated checklist of Echinoderms from Maranhão and Piauí States, Northeastern Brazil [PDF]

open access: yesCheck List, 2013
The present study provides the first checklist of echinoderm species that occurs in the States of Maranhão and Piauí, in Northeastern Brazil. The present compilation was produced based on an extensive bibliographical revision and on echinoderms deposited
Anne Gondim   +2 more
doaj   +3 more sources

New Record of a Sea Urchin Echinometra mathaei (Echinoidea: Camarodonta: Echinometridae) from Jeju Island, Korea and Its Molecular Analysis [PDF]

open access: yes, 2012
Echinoids were collected at depths of 5-10 m in Munseom, Jeju Island by SCUBA diving on November 23, 2008 and September 15, 2009. Two specimens were identified as Echinometra mathaei (Blainville, 1825) based on morphological characteristics and molecular
Sook Shin, Taekjun Lee
core   +1 more source

Exploring the Diversity of Temperate Mesophotic Rocky Reefs From ARMS and Water eDNA in Central Chile

open access: yesEnvironmental DNA, Volume 8, Issue 2, March/April 2026.
LowerMesophoticEcosystems have greater alpha diversity and number of exclusive families, high turnover between LowerME and UpperME with clear differences in community composition. Water eDNA and ARMS eDNA are characterized by pelagic and benthic affinity respectively.
J. V. Sánchez‐López   +15 more
wiley   +1 more source

Echinoderm research perspectives: A Central American bibliometric review

open access: yesCuadernos de investigación UNED, 2021
Introduction: Central America, a narrow strip of land dividing the Atlantic and Pacific oceans, has a high diversity of marine and terrestrial species. Echinoderms are one of the most diverse marine groups with 420 reported species.
Juan José Alvarado   +1 more
doaj   +1 more source

Marine Biodiversity and Ecosystem Health of Ilhas Selvagens, Portugal [PDF]

open access: yes, 2016
In September 2015, National Geographic's Pristine Seas project, in conjunction with the Instituto Universitário-Portugal, The Waitt Institute, the University of Western Australia, and partners conducted a comprehensive assessment of the rarely surveyed ...
A. Estep   +9 more
core  

The Extinction Risk–Range Change Relationship: Evidence From the Fossil Record

open access: yesGlobal Ecology and Biogeography, Volume 35, Issue 3, March 2026.
ABSTRACT Aim Climate change is a major driver for the wave of species extinctions predicted for this century. Extinction risk assessments are often estimated from climate‐driven reductions in the geographic ranges of species. However, the empirical relationship between extinction risk and range change remains unclear because few extinctions are ...
Eileen Straube   +3 more
wiley   +1 more source

Exploitation, secondary extinction and the altered trophic structure of Jamaican coral reefs [PDF]

open access: yes, 2010
Coral reef communities of the Greater Antilles in the Caribbean have a long history of anthropogenic disturbance, driven by the exploitation for food of both vertebrate and invertebrate species.
Peter D. Roopnarine, Rachel A. Hertog
core   +1 more source

Hard Rock Buffet: Chemosynthetic Carbon Use and Environmental Trophic Structuring of Carbonate‐Associated Macrofauna at Southern California Methane Seeps

open access: yesMarine Ecology, Volume 47, Issue 2, March/April 2026.
ABSTRACT Diverse invertebrate communities inhabiting carbonate rocks at methane seeps may rely on a mix of local chemosynthetic production and sinking photosynthetic organic matter, with relative importance shaped by environmental conditions. We investigate the contribution of chemosynthetic carbon to macrofaunal diets at six Southern California ...
Olívia S. Pereira   +3 more
wiley   +1 more source

Equinodermes do Brasil: II. Equinodermes da baía do Trapandé, situada no complexo estuarino-lagunar de Cananéia, SP

open access: yesBrazilian Journal of Oceanography, 1971
The echinoderm fauna of the estuarine lagunar complex of Cananeia (São Paulo) is described. Some observations on the density and distri bution of the eight species found in the region are presented. Three species are found in great density, i.e., Mellita
Luiz Roberto Tommasi
doaj   +1 more source

Examining Marine Assemblages Across an Inverse Salinity Gradient

open access: yesMolecular Ecology, Volume 35, Issue 6, March 2026.
ABSTRACT Salinity gradients and fluctuations can create a natural ecological filter, with few species tolerating salinity above 50 practical salinity units (PSUs). We investigated how an inverse salinity gradient affected marine community diversity and composition in Shark Bay, a remote hypersaline coastal embayment in Western Australia.
Kirsty E. Richards   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy