Results 81 to 90 of about 90,120 (213)

An Assessment of the Fish Maw Trade in Singapore and Malaysia Reveals Threatened Species and Highlights the Need for a More Complete Assessment of the Conservation Status of the World's Fishes

open access: yesConservation Letters, Volume 18, Issue 3, May/June 2025.
ABSTRACT Fish maw, the dried swim bladder of teleost fish, is consumed throughout much of East and Southeast Asia. The serving of maw is seen as an indicator of wealth, prestige, and status in Chinese culture. While Hong Kong and mainland China are considered major fish maw importers, its trade in these countries remains largely understudied. This lack
Ying Giat Seah, Benjamin J. Wainwright
wiley   +1 more source

Metabarcoding by capture using a single COI probe (MCSP) to identify and quantify fish species in ichthyoplankton swarms

open access: yesPLoS ONE, 2018
The ability to determine the composition and relative frequencies of fish species in large ichthyoplankton swarms could have extremely important ecological applications However, this task is currently hampered by methodological limitations. We proposed a
C. Mariac   +6 more
semanticscholar   +1 more source

Comparison of Morphological and DNA‐Based Identification Methods to Assess Earthworm (Clitellata: Lumbricidae) Diversity at 25 Permanent Soil Monitoring Sites in Germany

open access: yesEcology and Evolution, Volume 15, Issue 4, April 2025.
The present contribution should contribute to solving the problem of the time‐consuming and expensive identification of soil invertebrates in the standardised survey of soil organisms. Earthworms and soil were sampled at 25 sites; the animals were identified morphologically and by community DNA (comDNA) and environmental DNA (eDNA) metabarcoding, and ...
Stephan Jänsch   +13 more
wiley   +1 more source

A deep sequencing approach to estimate Plasmodium falciparum complexity of infection (COI) and explore apical membrane antigen 1 diversity

open access: yesMalaria Journal, 2017
BackgroundHumans living in regions with high falciparum malaria transmission intensity harbour multi-strain infections comprised of several genetically distinct malaria haplotypes.
Robin H. Miller   +9 more
semanticscholar   +1 more source

Genetic and Morphological Diversity of Tenthredopsis (Tenthredinidae: Symphyta: Hymenoptera) Species: A Case Study in Anatolia

open access: yesCumhuriyet Science Journal
The genus Tenthredopsis (Tenthredinidae: Hymenoptera), characterized by a Palearctic distribution, is widely recognized as a taxonomic challenge due to its limited morphological variation.
Sevda Hastaoğlu Örgen   +1 more
doaj   +1 more source

Dynamics of the Community of Inquiry (CoI) within a Massive Open Online Course (MOOC) for In-Service Teachers in Environmental Education

open access: yes, 2018
One of the greatest ways to transform education systems is to develop community-centered professional supports for in-service teachers. Given the rise of distance learning platforms such as massive open online courses (MOOCs), there is a growing ...
Maya Kaul, M. Aksela, Xiaomeng Wu
semanticscholar   +1 more source

DETERMINASI STRUKTUR STOK IKAN KEMBUNG LELAKI MENGGUNAKAN METODE PCR-RFLP DI WPP-NRI 711, 572, DAN 573

open access: yesJurnal Teknologi Perikanan dan Kelautan
Ikan kembung lelaki (Rastrelliger kanagurta) memiliki nilai ekonomis penting bagi nelayan. Tekanan eksploitasi yang tinggi memengaruhi keberadaan stok dan keseimbangan ikan tersebut di alam.
Dinda Febta Meliyana   +2 more
doaj   +1 more source

Country-of-origin image (COI) as a country-specific advantage (CSA): Scale development and validation of COI as a resource within the firm perspective

open access: yes, 2018
The study discusses the country-of-origin-image (COI) as a country-specific-advantage (CSA) for internationalised firms. We developed and validated a scale to measure the importance of the incorporation of the COI as a resource in a firm's international ...
M. Suter   +4 more
semanticscholar   +1 more source

Registro más austral del tiburón de arrecife de punta blanca Triaenodon obesus (Carcharhiniformes, Carcharhinidae) en el Pacífico Tropical Oriental

open access: yesRevista Peruana de Biología
Este trabajo documenta el registro de Triaenodon obesus (Rüppell, 1837) a partir de características morfológicas y del análisis de secuencias de los genes COI y 16S ARNr.
Beder Ramírez Segura   +2 more
doaj   +1 more source

Testing molecular barcodes: Invariant mitochondrial DNA sequences vs the larval and adult morphology of West Palaearctic Pandasyopthalmus species (Diptera: Syrphidae: Paragini)

open access: yesEuropean Journal of Entomology, 2006
The intra- and interspecific variability in the West Palaearctic tibialis-group species of the subgenus Pandasyopthalmus (Diptera: Syrphidae: Paragus) was analysed.
Santos ROJO   +3 more
doaj   +1 more source

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