Results 71 to 80 of about 37,948 (302)

Marine trophic architecture and hidden ecological connections in the Strait of Magellan: keystone species and ecosystem resilience

Oikos, EarlyView.
Understanding the ecological implications of species coexistence is central to biodiversity studies and to identify environmental and anthropogenic drivers of ecosystem dynamics, where ecological network analysis offers valuable insights. This study examines the complexity, structure, and potential responses to disturbances of the Strait of Magellan's ...
Claudia D. Andrade, Taryn Sepúlveda, Cristóbal Rivera, Cristian Aldea, Tomás I. Marina   +4 more
wiley   +1 more source

Dietary resilience of coral reef fishes to habitat degradation

Journal of Animal Ecology, EarlyView.
Metabarcoding of gut contents shows that two common benthic‐feeding reef fishes with different feeding stratgies—a butterflyfish (Chaetodon capistratus) and a hamlet (Hypoplectrus puella)—shift diets on degraded reefs. These shifts mirror contrasting patterns in body condition: butterflyfish showed strong individual variation, whereas condition was ...
Friederike Clever, Richard F. Preziosi, Bryan Nguyen, Brígida De Gracia, Helio Quintero Arrieta, W. Owen McMillan, Andrew H. Altieri, Aaron O'Dea, Nancy Knowlton, Matthieu Leray   +9 more
wiley   +1 more source

Fats, Fire and Bronze Age Funerary Rites: Organic Residue Analysis of Wide Horizontal Rim Vessels From Burial Contexts in Northwest Portugal

Archaeometry, EarlyView.
ABSTRACT This study presents the first GC‐MS–based analyses of wide horizontal rim vessels with well‐defined funerary contexts, from Middle Bronze Age Portugal (Quinta do Amorim 2 and Pego). Organic residues from two vessels revealed ruminant fats and plant oils, alongside molecular markers of heat exposure.
João Vinícius Back, César Oliveira, Ana M. S. Bettencourt, Hugo Aluai Sampaio, Luciano Vilas Boas, Luís Gonçalves   +5 more
wiley   +1 more source

Characterization of oxidative stress biomarkers in a freshwater anomuran crab [PDF]

Brazilian Journal of Biology, 2017
Abstract In general, environmental responses at level of populations or communities are preceded by alterations at lower biological levels which can be efficiently detected by the analysis of biomarkers. We analyzed the oxidative biomarkers TBARS and Catalase in Aegla singularis, a freshwater crustacean highly sensitive to environmental changes.
Borges, A. C. P., Piassão, J. F. G., Paula, M. O., Sepp, S., Bez, C. F. S., Hepp, L. U., Valduga, A. T., Pereira, A. A. Mielniczki, Cansian, R. L.   +8 more
openaire   +6 more sources

Climate-related hydrological regimes and their effects on abundance of juvenile blue crabs (Callinectes sapidus) in the northcentral Gulf of Mexico [PDF]

, 2011
The abundance of juvenile blue crabs (Callinectes sapidus) in the northcentral Gulf of Mexico was investigated in response to climate-related hydrological regimes.
Biesiot, Patricia M., Johnson, Donald R., Lipcius, Romuald N., Perry, Harriet M., Sanchez-Rubio, Guillermo   +4 more
core   +1 more source

Crushing and Cutting: Shape Variation and Morphological Integration Between the Claws of Two Swimming Crab Species (Brachyura: Portunidae)

Acta Zoologica, EarlyView.
ABSTRACT This study investigated shape variations and morphological integration between the components of crusher and cutter claws in two species of swimming crabs, Callinectes danae and Callinectes ornatus. The propodi and dactyli of the claws were analysed in males and females of both species, using geometric morphometric techniques to identify ...
Julia Tadiotto, Alexandre Ribeiro da Silva, Julia Fernandes Perroca, Rogerio Caetano Costa, Caio Santos Nogueira   +4 more
wiley   +1 more source

Tropomyosin allergen from freshwater and marine water crabs: Identification, structural-physicochemical, rheological and allergenic characterization

Applied Food Research
The aim of the present investigation was to purify and characterize highly allergenic tropomyosin from economically important crab species of freshwater and marine sources.
Omgy Neha, Anandan Rangasamy, Sankar T․V․, Vijay Kumar Reddy Surasani, Lalitha Gnanasekaran, Saranya Vinayagam, Thanigaivel Sundaram, Ranjana Devi Mutum, Turki Kh. Faraj, Abdulwahed Fahad Alrefaei, Pavan Kumar Dara, Maximilian Lackner   +11 more
doaj   +1 more source

The whole mitochondrial genome of the freshwater crab, Geothelphusa sp. (Stimpson, 1858) (Decapoda, Potamidae) and its phylogenetic relationship

Mitochondrial DNA. Part B. Resources, 2019
The mitochondrial genome of Geothelphusa sp. DJL-2014 isolate Gm01 (named Naju crab) was sequenced nearly completely and analyzed. It is 18052 bp in length, consisting 13 protein-coding genes (PCGs), two ribosomal RNA genes, 22 transfer RNA genes, and a ...
Dong Ju Lee, Hae Bum Lee, Il-Chul Kim
doaj   +1 more source

Status and Potential of Fisheries and Aquaculture in Asia and the Pacific 2006 [PDF]

, 2006
This publication highlights the interconnectivity and linkages between coastal ecosystems (mangroves, coral reefs, seagrasses, estuaries, and lagoons) across environ-mental, economic, social, and management contexts.
Francine Kershaw, Silvia Silvestri
core  

Geometric Morphometrics Reveal Body Shape Variation in Freshwater Shrimps of the Genus Macrobrachium Lacking a Mandibular Palp (Formerly Pseudopalaemon Sollaud, 1911) (Decapoda: Palaemonidae)

Acta Zoologica, EarlyView.
ABSTRACT Shape variation in the cephalothorax of Macrobrachium species without mandibular palp using geometric morphometrics was used as a tool to support species differentiation and propose new diagnostic characters for taxonomic identification.
Thaís Arrais Mota, Ana Carla Soares da Silva, Lucas Jhones de Santana Neves, Carlos Eduardo Rocha Duarte Alencar, Fabrício Lopes Carvalho   +4 more
wiley   +1 more source