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Computation And Interpretation Of Biological Statistics Of Fish Populations

Qualified presumption of safety (QPS) was developed to provide a generic safety evaluation for biological agents to support EFSA's Scientific Panels. The taxonomic identity, body of knowledge, safety concerns and antimicrobial resistance are assessed. Safety concerns identified for a taxonomic unit (TU) are where possible to be confirmed at strain or product level, reflected by 'qualifications'. No new information was found that would change the previously recommended QPS TUs and their qualifications. The list of microorganisms notified to EFSA was updated with 54 biological agents, received between April and September 2019; 23 already had QPS status, 14 were excluded from the QPS exercise (7 filamentous fungi, 6 Escherichia coli, Sphingomonas paucimobilis which was already evaluated). Seventeen, corresponding to 16 TUs, were evaluated for possible QPS status, fourteen of these for the first time, and Protaminobacter rubrum, evaluated previously, was excluded because it is not a valid species. Eight TUs are recommended for QPS status. Lactobacillus parafarraginis and Zygosaccharomyces rouxii are recommended to be included in the QPS list. Parageobacillus thermoglucosidasius and Paenibacillus illinoisensis can be recommended for the QPS list with the qualification 'for production purposes only' and absence of toxigenic potential. Bacillus velezensis can be recommended for the QPS list with the qualification 'absence of toxigenic potential and the absence of aminoglycoside production ability'. Cupriavidus necator, Aurantiochytrium limacinum and Tetraselmis chuii can be recommended for the QPS list with the qualification 'production purposes only'. Pantoea ananatis is not recommended for the QPS list due to lack of body of knowledge in relation to its pathogenicity potential for plants. Corynebacterium stationis, Hamamotoa singularis, Rhodococcus aetherivorans and Rhodococcus ruber cannot be recommended for the QPS list due to lack of body of knowledge. Kodamaea ohmeri cannot be recommended for the QPS list due to safety concerns.

https://efsa.onlinelibrary.wiley.com/doi/pdf/10.2903/j.efsa.2020.5965

Update of the list of QPS-recommended biological agents intentionally added to food or feed as notified to EFSA 13: suitability of taxonomic units notified to EFSA until September 2020.

THE fact that this text-book by Appleyard and Lyons has made its fourth appearance in ten years is sufficient evidence of its popularity. This new edition differs from its predecessors only by a slightly expanded chapter on qualitative organic analysis.Practical Pharmaceutical ChemistryBy F. N. Appleyard Dr. C. G. Lyons. Fourth edition. Pp. vii + 174. (London: Sir Isaac Pitman and Sons, Ltd., 1939.) 6s. 6d. net.

Practical In Pharmaceutical Chemistry

Handbook of the Birds of India and Pakistan Together with Those of Nepal, Sikkim, Bhutan and Ceylon. Volume 6. Cuckoo-Shrikes to Babaxes.Salim Ali , S. Dillon Ripley

Aim To study (1) the large-scale distribution patterns of freshwater fishes in the Western Ghats of India; (2) the endemism and uniqueness of the fishes in various zones; and (3) the threat status of fishes by categorizing them under low risk (LR), vulnerable (VU), endangered (EN) and critically endangered (CR).

Distribution, endemism and threat status of freshwater fishes in the Western Ghats of India

We studied the freshwater fish fauna of Koyna River for a period of two years from May 2007 to April 2009. We recorded 58 species belonging to 16 families and 35 genera. Eleven out of the 22 fish species endemic to the Western Ghats are restricted to the Krishna River system. Eight endemic fish species are known to be threatened because of various anthropogenic activities. Since the fish fauna of Koyna is relatively less threatened by anthropogenic stressors with currently no record of alien fish species, we propose that Koyna River can be considered as a refuge for conservation of some endemic and threatened freshwater fishes of the Western Ghats. Nevertheless, efforts to maintain low anthropogenic interference and avoiding introduction of alien species are central to our proposal.

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Freshwater fish fauna of Koyna River, northern Western Ghats, India

Changes in species diversity of riverine fish fauna in North Western Ghats were deduced from five faunal checklists spread over the last six decades. Though the fish species diversity of Mula-Mutha rivers appears to be constant, loss of endemic and native species and their replacement with introduced species are worrisome. Besides heavy harvest, anthropogenic activities like dam construction, habitat destruction, biological and chemical pollution in the Mula-Mutha rivers are assumed to be responsible for the loss of over 30 native fish species during the last 60 years. Practicable conservation measures include pollution management, controlled harvesting of fish and artificial breeding of native fish species.

Long-term changes in freshwater fish species composition in North Western Ghats, Pune District

Microplastic-associated pathogens and antimicrobial resistance in environment.

The freshwater fish fauna of the Indrayani River, a northern tributary of the Krishna River system in the Western Ghats of India was studied. A total of 57 species of freshwater fish belonging to 18 families and 39 genera were recorded. However, based on the previous literature it is possible that the Indrayani River harbours around 67 species. Out of the 57 species in the present collection, 12 are endemic to the Western Ghats while six are endemic to the Krishna River system. Neotropius khavalchor, an endemic fish of the Krishna River system, was recorded for the first time from the northern tributaries. The fish fauna of the Indrayani River is threatened due to seven introduced species and anthropogenic activities such as deforestation leading to siltation, tourism, sand mining, over fishing and organic and inorganic pollution. Since the Indrayani River hosts endemic and threatened species, including Glyptothorax poonaensis, conservation measures to ensure habitat protection in the river are essential.

/pdf/fish-fauna-of-indrayani-river-northern-western-ghats-india-46id4ljbgv.pdf

Fish fauna of Indrayani River, northern Western Ghats, India

Self-similar systems are best described as power functions, known as allometric scaling relationships in biological context. Understanding the relationships among changes in various somatic and gonadal (reproductive) tissues with increasing body size can provide valuable ecological information and may shed light on evolutionary trends. In this paper we have discussed how different somatic and gonadal tissues of a freshwater loach Nemacheilus mooreh (Sykes, 1839) scale with each other. We observed that tissues, which directly influence the reproductive success, show non-isometric relationships, i.e. relations not scaled as per the Euclidian geometry, with high values of exponents than expected; while tissues, which directly do not influence the reproductive behavior scale as per the Euclidian geometry. This finding suggests that the scaling exponents could be subject to selection towards higher reproductive efficiency. As different species have different r and K selection strategies we believe that the allometric scaling may not be universal as has been advocated before.

Sanjay S. Kharat

Papers

Freshwater fish fauna of Koyna River, northern Western Ghats, India

Long-term changes in freshwater fish species composition in North Western Ghats, Pune District

Microplastic-associated pathogens and antimicrobial resistance in environment.

Fish fauna of Indrayani River, northern Western Ghats, India

Allometric scaling in growth and reproduction of a freshwater loach nemacheilus mooreh (sykes, 1839)