Results 71 to 80 of about 20,818 (273)

Phylogenetic conservation of chromosome numbers in Actinopterygiian fishes. [PDF]

open access: yes, 2006
The genomes of ray-finned fishes (Actinopterygii) are well known for their evolutionary dynamism as reflected by drastic alterations in DNA content often via regional and whole-genome duplications, differential patterns of gene silencing or loss, shifts ...
Avise, John C, Mank, Judith E
core   +2 more sources

Observation Bias in Metabarcoding

open access: yesMolecular Ecology Resources, EarlyView.
ABSTRACT DNA metabarcoding is subject to observation bias associated with PCR and sequencing, which can result in observed read proportions differing from actual species proportions in the DNA extract. Here, we amplify and sequence a mock community of known composition containing marine fishes and cetaceans using four different primer sets and a ...
Megan R. Shaffer   +5 more
wiley   +1 more source

Unicorn leatherjacket filefish, Aluterus monoceros (Actinopterygii: Tetraodontiformes: Monacanthidae): first record off the Tunisian coast and confirmed occurrence in the Mediterranean Sea [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2011
Investigations conducted off the northern Tunisian coast (central Mediterranean) allowed the authors to collect a male of the unicorn leatherjacket filefish, Aluterus monoceros (L.).
J. Ben Souissi   +3 more
doaj   +3 more sources

Evaluación morfométrica y genética de la estructura poblacional de Cynoscion guatucupa de la costa de Buenos Aires en el Mar Argentino [PDF]

open access: yes, 2010
This study analyzed the morphometric, microsatellite loci and mitochondrial control region variation of the striped weakfish from two feeding and spawning grounds in the coastal area of Buenos Aires province. The characterization of the body shape proved
Díaz de Astarloa, Clara María   +4 more
core   +1 more source

Measuring juvenile habitat quality for fishes and invertebrates

open access: yesBiological Reviews, EarlyView.
ABSTRACT Identifying the role of marine and estuarine habitats in supporting fish and invertebrate populations during vulnerable juvenile life stages is essential to achieve effective conservation and fisheries management. There remains general agreement that: (i) the quality of juvenile habitat is best measured as the contribution of juveniles to ...
Benjamin J. Ciotti   +12 more
wiley   +1 more source

Indigenous peoples and local community reports of climate change impacts on biodiversity

open access: yesConservation Biology, EarlyView.
Abstract Climate change impacts on biodiversity have been primarily studied through ecological research methods, largely ignoring other knowledge systems. Indigenous and local knowledge systems include rich observations of changes in biodiversity that can inform climate change adaptation planning and environmental stewardship.
Albert Cruz‐Gispert   +5 more
wiley   +1 more source

Phylogenetic Interrelationships of Ginglymodian Fishes (Actinopterygii: Neopterygii)

open access: yesPLoS ONE, 2012
The Ginglymodi is one of the most common, though poorly understood groups of neopterygians, which includes gars, macrosemiiforms, and "semionotiforms." In particular, the phylogenetic relationships between the widely distributed "semionotiforms," and between them and other ginglymodians have been enigmatic.
openaire   +5 more sources

Ontogenia temprana de Poblana letholepis (Actinopterygii: Atherinopsidae)

open access: yesRevista Mexicana de Biodiversidad, 2016
Poblana letholepis es endémica del lago cráter La Preciosa, Puebla. La especie está amenazada debido a que su hábitat se encuentra bajo desecación por la deforestación, el sobrepastoreo y malas prácticas de riego. Se describe por primera vez el desarrollo temprano de P.
María Cecilia Hernández-Rubio   +2 more
openaire   +4 more sources

Associations between fishes (Actinopterygii: Teleostei) and anthozoans (Anthozoa: Hexacorallia) in epipelagic waters based on in situ records

open access: yesJournal of Fish Biology, EarlyView.
Abstract We formally describe the association of fishes and anthozoans in epipelagic waters, extending this relationship to beyond the benthos. In situ observations and photographs of Aluterus schoepfii, Ariomma regulus, Caranx cf. latus and Brama spp.
Gabriel V. F. Afonso   +3 more
wiley   +1 more source

Almost billfish: convergent longirostry, micro‐dentition, and possible glandular sinuses in a large teleost fish from the Upper Cretaceous of Northern Italy

open access: yesJournal of Anatomy, EarlyView.
A fossil rostrum fragment of a large teleost fish from the Upper Cretaceous of Northern Italy reveals remarkable anatomical convergences with Cenozoic and Recent billfishes (marlins, swordfishes, and akin). The extinct group Plethodidae independently acquired a long snout, micro‐teeth, and oil‐gland sinuses well before the evolution of true billfishes.
Giovanni Serafini   +5 more
wiley   +1 more source

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