Results 51 to 60 of about 1,576 (180)

Portunidae Rafinesque 1815

open access: yes, 2012
Key to species of family Portunidae 1. Eyestalk extremely long, 0.3 or more of carapace breadth.......................................... Euphylax dovii – Eyestalk not as long, much less than 0.3 of carapace breadth................................................... 2 2.
openaire   +2 more sources

Optimization of the demineralization process for the extraction of chitin from Omani Portunidae segnis

open access: yesBiochemistry and Biophysics Reports, 2020
Chitin is an organic polymer and it is the most frequent marine natural polysaccharide after cellulose. The main natural sources of chitin are exoskeletons of insects, mollusks, the cell walls of certain fungi and crustaceans such as crabs, shrimps and lobsters.
Noura Hamed Khalifa Al Shaqsi   +3 more
openaire   +3 more sources

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

Restauración y actualización taxonómica de la colección de crustáceos (Arthropoda: Crustacea) de Juan C. Gundlach

open access: yesNovitates Caribaea, 2011
Se presentan los resultados obtenidos al restaurar y actualizar la taxonomía de la colección de crustáceos cubanos realizada en el siglo XIX por el naturalista alemán, radicado en Cuba, Juan C. Gundlach.
Manuel Ortiz, Marco A. Olcha
doaj   +1 more source

Portunidae Rafinesque 1815

open access: yes, 2018
Portunidae Rafinesque, 1815 Callinectes amnicola (De Rochebrune, 1883) —CVI Guinot & Ribeiro (1962, as C. latimanus); inshore estuarine—Benthic, 0– 30 m. TSEA. Callinectes marginatus (A. Milne-Edwards, 1861) —CVI A. Milne-Edwards (1878, as C. africanus [var. de diacanthus]); shallow waters—Benthic. TSEA.
openaire   +2 more sources

Century‐Scale Changes in the Feeding Patterns of Demersal Fish Species in the Western North Sea

open access: yesFish and Fisheries, Volume 27, Issue 2, Page 99-115, March 2026.
ABSTRACT Understanding the extent and magnitude of change in marine food webs requires historical data that predates modern monitoring efforts. Such information can provide invaluable insights into the longer‐term impacts of altered trophic interactions, yet it is rarely incorporated into marine policy frameworks.
Georgina L. Hunt   +4 more
wiley   +1 more source

LEVANTAMENTO DA FAMÍLIA PORTUNIDAE (CRUSTACEA, DECAPODA,BRACHYURA) NO COMPLEXO BAÍA-ESTUÁ RIO DE SANTOS, SÃO PAULO, BRASIL

open access: yesBoletim do Instituto de Pesca, 2018
Entre 1979 e 1983, em levantamento da famí­­lia Portunidae no Complexo Baia-Estuário de Santos, identificaram-se as seguintes espécies: Callinectes bocourti, Callinectes danae, Callinectes exasperatus e Callinectes sapidus, ocorrendo no estuário e na ...
José Benevide PITA   +3 more
doaj  

A Comparison of DNA Metabarcoding Cloacal Swabs and Stomach Contents for Shark Diet Reconstruction

open access: yesEnvironmental DNA, Volume 8, Issue 1, January–February 2026.
Our results indicate that the less invasive, non‐lethal method of DNA metabarcoding cloacal swabs provided higher taxonomic resolution than more common methods for studying shark trophic ecology (i.e., morphological stomach contents identification and trophic biomarkers) with no statistical difference in overall diet description between cloacal swabs ...
Savannah J. Ryburn   +5 more
wiley   +1 more source

Portunidae Rafinesque 1815

open access: yes, 2010
Published as part of Brösing, Andreas, 2010, Recent developments on the morphology of the brachyuran foregut ossicles and gastric teeth, pp.
openaire   +2 more sources

Assessment of a Social Media‐Based Method for Determining Raptor Diet

open access: yesEcology and Evolution, Volume 15, Issue 6, June 2025.
This study mined social media as a citizen science method to reduce the time burden and biases associated with recording accurate diet information for predators. In total, 1985 prey observations were recorded of two Australian coastal raptors and were used to produce diet profiles that were compared by region, social media platform, and against other ...
Leo Biggs   +7 more
wiley   +1 more source

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