scholarly journals A Review of Fish Taxonomy Conventions and Species Identification Techniques

2017 ◽  
Vol 4 (1) ◽  
Author(s):  
C Keat-Chuan Ng ◽  
P Aun-Chuan Ooi ◽  
W.L Wong ◽  
G Khoo
Keyword(s):  
Species Identification ◽  
Fish Taxonomy ◽  
Identification Techniques

scholarly journals Identification of Meat Species by Using Molecular and Spectroscopic Techniques

2017 ◽  
Vol 5 (5) ◽  
pp. 488
Author(s):  
Evrim Güneş Altuntaş ◽  
Ebru Deniz ◽  
Beycan Ayhan ◽  
Kezban Candogan ◽  
Duygu Ozel Demiralp
Keyword(s):  
Species Identification ◽  
Meat Products ◽  
Spectroscopic Techniques ◽  
Controversial Issues ◽  
High Quality ◽  
Human Diet ◽  
Mineral Contents ◽  
Meat Species ◽  
Identification Techniques ◽  
Nutrition Source

Meat is one of the main nutrition source in the human diet with its excellent protein, vitamin and mineral contents. Despite its advantages, being high-priced makes meat products open to adulteration. Meat products are mixed food types which can contain different species of meat. However, mixing two or more types of meats is not always allowed by laws. On the other hand, replacement high quality meats with cheaper meat types are a cost lowering way for the producers. The commonly consumed meat types differ from country to country, but generally economical, ethnic and religion concerns are in the foreground. In this case, species identification techniques are gaining importance. Although some techniques depending on DNA or spectroscopy have been developed for many years, choosing the best method for species identification is still among the controversial issues today. Thus, the currently used methods and promising techniques in this area were discussed in this review.

scholarly journals Advancing bird survey efforts through novel recorder technology and automated species identification

2021 ◽  
Vol 107 (2) ◽  
pp. 56-70
Author(s):  
Matthew Toenies ◽  
Lindsey Rich
Keyword(s):  
Species Identification ◽  
Low Cost ◽  
Bird Species ◽  
Field Trials ◽  
High Rate ◽  
Great Promise ◽  
Point Counts ◽  
Bird Detection ◽  
Automated Tools ◽  
Identification Techniques

Recent advances in acoustic recorder technology and automated species identification hold great promise for avian monitoring efforts. Assessing how these innovations compare to existing recorder models and traditional species identification techniques is vital to understanding their utility to researchers and managers. We carried out field trials in Monterey County, California, to compare bird detection among four acoustic recorder models (AudioMoth, Swift Recorder, and Wildlife Acoustics SM3BAT and SM Mini) and concurrent point counts, and to assess the ability of the artificial neural network BirdNET to correctly identify bird species from AudioMoth recordings. We found that the lowest-cost unit (AudioMoth) performed comparably to higher-cost units and that on average, species detections were higher for three of the five recorder models (range 9.8 to 14.0) than for point counts (12.8). In our assessment of BirdNET, we developed a subsetting process that enabled us to achieve a high rate of correctly identified species (96%). Using longer recordings from a single recorder model, BirdNET identified a mean of 8.5 verified species per recording and a mean of 16.4 verified species per location over a 5-day period (more than point counts conducted in similar habitats). We demonstrate that a combination of long recordings from low-cost recorders and a conservative method for subsetting automated identifications from BirdNET presents a process for sampling avian community composition with low misidentification rates and limited need for human vetting. These low-cost and automated tools may greatly improve efforts to survey bird communities and their ecosystems, and consequently, efforts to conserve threatened indigenous biodiversity.

Chemical Species Identification in an SEM by Changes in Emitted X-Ray Energies

1974 ◽  
Vol 32 ◽  
pp. 570-571
Author(s):  
R. H. Duff
Keyword(s):  
Species Identification ◽  
Valence Electron ◽  
Chemical Species ◽  
X Rays ◽  
Chemical Bonds ◽  
Small Shift ◽  
X Ray ◽  
Electron Transitions ◽  
Peak Energy ◽  
Chemical Combination

A material irradiated with electrons emits x-rays having energies characteristic of the elements present. Chemical combination between elements results in a small shift of the peak energies of these characteristic x-rays because chemical bonds between different elements have different energies. The energy differences of the characteristic x-rays resulting from valence electron transitions can be used to identify the chemical species present and to obtain information about the chemical bond itself. Although these peak-energy shifts have been well known for a number of years, their use for chemical-species identification in small volumes of material was not realized until the development of the electron microprobe.

Beetles of the family Cryptophagidae (Coleoptera) in the collection of Zoological Museum of Taras Shevchenko National University of Kyiv

2019 ◽  
Vol 17 (2) ◽  
pp. 10-24 ◽  
Author(s):  
K. Ocheretna
Keyword(s):  
Species Identification ◽  
Broad Sense ◽  
Zoological Museum ◽  
World War ◽  
Identification Number ◽  
Comprehensive List ◽  
Carpathian Region ◽  
The Family ◽  
National University ◽  
Collection Sites

The Cryptophagidae collection (Coleoptera: Cucujoidea) deposited at the Zoological Museum of the Taras Shevchenko National University of Kyiv (ZMKU) is described. The main authors of the collection are well-known researchers from the 1910–1930s, Orest Marcu and Karl Penecke. This is the largest collection of cryptophagids among the natural museums of Ukraine containing 304 specimens belonging to 85 species of 13 genera. In addition, 15 specimens of 5 species belonging to the families Erotylidae, Biphyllidae and Languriidae were among Cryptophagidae specimens. The collection, according to information available in the ZMKU, came to the museum not earlier than 1947 as the indemnity for the results of the II World War, most likely from Chernivtsi, where Marcu and Penecke worked. The vast majority of specimens is collected in the territory of modern Romania and Ukraine, and many specimens came from Chernivtsi. A table with an overview of all key details of the specimens is given, in which there are 6 fields: the name of the species on the label, details on the species identification, number of specimens, collection locality with the name of collector and remarks on the specimen, in particular, the instructions for decoding collection sites from the original labels. Annotations are made on the amount of the collection and the most important specimens and re-identification for each of the 13 genera. Some specimens are lost, probably during numerous collection migrations. In particular, some species (Cryptophagus simplex, C. lapidicola, C. nitidulus, Caenoscelis subdeplanata, Atomaria grandicollis, A. peltata, etc.) are represented in the collection only by the labels. The collection is important for the analysis of the composition of the fauna of the Carpathian region in the broad sense, since some species are encountered in the collection rarely; therefore it is important to clarify their locations to form the most comprehensive list of species of the Cryptophagids in the region. Several species of the family were included on the actual list of the fauna of the region on the basis of the study of this collection, in particular: Atomaria linearis, A. analis, A. apicalis, A. gravidula, Cryptophagus fasciatus, C. setulosus, etc.

Metode Diplomatik dalam Mengidentifikasi Kandungan Isi Naskah Gulungan Berbahan Daluang Koleksi Candi Cangkuang

Panggung ◽  
2012 ◽  
Vol 22 (4) ◽  
Author(s):  
Tedi Permadi
Keyword(s):  
Direct Observation ◽  
Relevant Literature ◽  
Script Identification ◽  
Identification Techniques

ABSTRACTThis paper presents the results of the identification of rolled manuscripts made of daluang using diplomatic method. This method aims at getting the authenticity of the script based on the information that accompanies the text with the internal evidence contained in the manuscript. In terms of script identification techniques, diplomatic method utilizes direct observation techniques, assisted by other descriptions of contemporary manuscript as an evidence and support of the relevant literature. The use of diplomatic method in identifying rolled manuscripts produces the characteristics of the material, the literacy/language used in the text, and the editorial lapses contained in the text, but the identity of the author or the copyist and the time of the writing or copying manuscripts could not be found.Keywords: Manuscript identification, daluang, diplomatic method ABSTRAKTulisan ini menyajikan hasil identifikasi naskah gulungan berbahan daluang dengan menggunakan metode diplomatik. Metode diplomatik bertujuan untuk mendapatkan keaslian naskah berdasarkan informasi yang ada di dalam teks dengan bukti internal yang terkandung dalam naskah tersebut. Dalam hal teknik identifikasi naskah, metode diplomatik memanfaatkan teknik observasi langsung, dibantu dengan deskripsi dari naskah kontemporer lain sebagai bukti dan pendukung literatur yang relevan. Penggunaan metode diplomatik dalam mengidentifikasi naskah gulungan menghasilkan karakteristik material, huruf/bahasa yang digunakan dalam teks, dan penyimpangan editorial yang terkandung dalam teks, tetapi tidak bisa menemukan identitas penulis atau penyalin dan waktu penulisan atau penyalinan naskah.Kata kunci: Identifikasi naskah, daluang, metode diplomatik

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