Getting a job was as difficult as securing the old one. It was another experience entirely after working as Sales Executive in a bookselling firm and wanting to become an editor for a publishing firm. Actually Claude had a flair for editorials, so he had to experiment first as freelance editor while working as salesman. It was actually difficult to determine whether book editing could be taught (perhaps a B.A honors in editing would have gone a long way) or a matter of talent and experience could help, but Claude had this weird interest and inordinate desire to be called writer and editor

We must open the eyes of our souls to the truth of where we stand before Christ. And then, when we know our own inadequacy, it will be possible to offer ourselves truthfully to Him.

It is easy to fall into despair before our own personal problems, the challenges faced by loved ones, and the brokenness of our society and world. It is tempting to refuse to accept that we remain responsible for offering ourselves to Christ as best we can for healing and transformation in holiness, regardless of what is going on in our lives, families, or world

Sustainable governance of our biological resources demands reliable scientific knowledge to be accessible and applicable to the needs of society. To achieve this, the EU BON project aims to develop a European Biodiversity Observation Network that facilitates open access to biodiversity data of relevance to environmental policy, and to develop innovative platforms for sharing and conveying this information through visually effective and policy-relevant media.

As part of this endeavour, EU BON partners FishBase Information and Research Group (FIN), the Museum für Naturkunde Berlin (MfN), and the UNEP World Conservation Monitoring Centre collaborated to produce an infographic titled ‘Climate Change & Biodiversity: What may happen to bony fishes in the North Sea?’. This infographic explains the economic and ecological importance of bony fishes in the context of the North Sea. It also visualises potential changes to species diversity and composition over time, using habitat suitability and climate change predictions. These changes have been projected to 2100 based on modelled environmental conditions under the Intergovernmental Panel on Climate Change’s A2 emissions scenarios. The projections have direct policy relevance to Aichi Biodiversity Target 10 of the Convention on Biological Diversity, which seeks to understand trends in climatic impacts on community composition in ecosystems, and to thereby minimize these impacts.

The infographic was published on the 1^st June 2015 on page 26 of The Parliament Magazine’s ‘Green Week’ edition (Issue 413), which is distributed to all members of European Parliament, the European Commission, Presidency Office, Party political groups, and various other EU institutions, with over 50,000 readers worldwide. 

Adobe Illustrator 2025 Splash Screen Illustration: TRÜF’s “Weird Fishes”

Tokyo ; Rutland, Vermont ; Singapore : Tuttle Publishing, 2020.

Filament barbs are a group of small freshwater fishes found in the rivers of peninsular India and Sri Lanka from where around nine species are currently known under the genus Dawkinsia.

"X-Ray Vision: Fish Inside Out," is a new exhibition of striking x-rays that reveal the complex bone structure of fishes in the collections of the Smithsonian's National Museum of Natural History.

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The Smithsonian Tropical Research Institute has released the first completely portable bilingual species identification guide for the shore fishes of the tropical Eastern Pacific as a free iPhone application.

The post First fish App from the Smithsonian free on iTunes. “The Smithsonian Guide to the Shore Fishes of the Tropical Eastern Pacific” appeared first on Smithsonian Insider.

Frontispiece illustration of “flies” from the 1882 book American game fishes, their habits, habitat, and peculiarities; how, when, and where to angle for them, featuring […]

The post Illustration from American game fishes, their habits, habitat, and peculiarities appeared first on Smithsonian Insider.

In this fun, accessible and informative book, ichthyologists Gene Helfman, professor emeritus at the University of Georgia, and Bruce Collette, of the Division of Fishes at the Smithsonian’s National Museum of Natural History, provide accurate, entertaining, and sometimes surprising answers to more than 100 common and not-so-common questions.

The post New Book: “Fishes: The Animal Answer Guide” appeared first on Smithsonian Insider.

A selection of fascinating facts about fishes from the new book "Fishes: The Animal Answer Guide"

The post Five funky and 5 fun facts about fishes appeared first on Smithsonian Insider.

Researchers have found that ocean acidification leads to changes in the ways that clownfish normally respond to sound. As many species rely on hearing for orientation, habitat selection, avoiding predators and communication, ocean acidification could compromise auditory behaviour crucial for survival.

Researchers have found that ocean acidification leads to changes in the ways that clownfish normally respond to sound. As many species rely on hearing for orientation, habitat selection, avoiding predators and communication, ocean acidification could compromise auditory behaviour crucial for survival.

Researchers have found that ocean acidification leads to changes in the ways that clownfish normally respond to sound. As many species rely on hearing for orientation, habitat selection, avoiding predators and communication, ocean acidification could compromise auditory behaviour crucial for survival.

Desperate need inspires sacrificial giving, as GFA-supported teams work through night to assist government officials ready emergency supplies

Karen L. Carleton, Daniel Escobar-Camacho, Sara M. Stieb, Fabio Cortesi, and N. Justin Marshall

Among vertebrates, teleost eye diversity exceeds that found in all other groups. Their spectral sensitivities range from ultraviolet to red, and the number of visual pigments varies from 1 to over 40. This variation is correlated with the different ecologies and life histories of fish species, including their variable aquatic habitats: murky lakes, clear oceans, deep seas and turbulent rivers. These ecotopes often change with the season, but fish may also migrate between ecotopes diurnally, seasonally or ontogenetically. To survive in these variable light habitats, fish visual systems have evolved a suite of mechanisms that modulate spectral sensitivities on a range of timescales. These mechanisms include: (1) optical media that filter light, (2) variations in photoreceptor type and size to vary absorbance and sensitivity, and (3) changes in photoreceptor visual pigments to optimize peak sensitivity. The visual pigment changes can result from changes in chromophore or changes to the opsin. Opsin variation results from changes in opsin sequence, opsin expression or co-expression, and opsin gene duplications and losses. Here, we review visual diversity in a number of teleost groups where the structural and molecular mechanisms underlying their spectral sensitivities have been relatively well determined. Although we document considerable variability, this alone does not imply functional difference per se. We therefore highlight the need for more studies that examine species with known sensitivity differences, emphasizing behavioral experiments to test whether such differences actually matter in the execution of visual tasks that are relevant to the fish.

Krishnamoorthy Krishnan, Asif Shahriar Nafi, Roi Gurka, and Roi Holzman

Fish larvae are the smallest self-sustaining vertebrates. As such, they face multiple challenges that stem from their minute size, and from the hydrodynamic regime in which they dwell. This regime, of intermediate Reynolds numbers, was shown to affect the swimming of larval fish and impede their ability to capture prey. Prey capture is impeded because smaller larvae produce weaker suction flows, exerting weaker forces on the prey. Previous observations on feeding larvae also showed prey exiting the mouth after initially entering it (hereafter "in-and-out"), although the mechanism causing such failures had been unclear. In this study, we used numerical simulations to investigate the hydrodynamic mechanisms responsible for the failure to feed caused by this in-and-out prey movement. Detailed kinematics of the expanding mouth during prey capture by larval Sparus aurata were used to parameterize age-specific numerical models of the flows inside the mouth. These models revealed that for small larvae which expand their mouth slowly, fluid entering the mouth cavity is expelled through the mouth before it is closed, resulting in flow reversal at the orifice. This relative efflux of water through the mouth was >8% of the influx through the mouth for younger ages. However similar effluxes were found when we simulated slow strikes by larger fish. The simulations can explain the observations of larval fish failing to fish due to the in-and-out movement of the prey. These results further highlight the importance of transporting the prey from the gape deeper into the mouth cavity in determining suction-feeding success.

Lewis C. Naisbett-Jones, Nathan F. Putman, Michelle M. Scanlan, David L. G. Noakes, and Kenneth J. Lohmann

A variety of animals sense Earth's magnetic field and use it to guide movements over a wide range of spatial scales. Little is known, however, about the mechanisms that underlie magnetic field detection. Among teleost fish, growing evidence suggests that crystals of the mineral magnetite provide the physical basis of the magnetic sense. In this study, juvenile Chinook salmon (Oncorhynchus tshawytscha) were exposed to a brief but strong magnetic pulse capable of altering the magnetic dipole moment of biogenic magnetite. Orientation behaviour of pulsed fish and untreated control fish was then compared in a magnetic coil system under two conditions: (1) the local magnetic field; and (2) a magnetic field that exists near the southern boundary of the natural oceanic range of Chinook salmon. In the local field, no significant difference existed between the orientation of the control and pulsed groups. By contrast, orientation of the two groups was significantly different in the magnetic field from the distant site. These results demonstrate that a magnetic pulse can alter the magnetic orientation behaviour of a fish and are consistent with the hypothesis that salmon have magnetite-based magnetoreception.

Noemie Liesch and Friedrich Ladich

In vocal fish species, males possess larger sound-generating organs and signal acoustically with pronounced sex-specific differences. Sound production is known in two out of three species of croaking gouramis (Trichopsis vittata and T. schalleri). The present study investigates sex-specific differences in sonic organs, vocalizing behaviour and sounds emitted in the third species, the pygmy gourami T. pumila, in order to test the hypothesis that females are able to vocalize despite their less-developed sonic organs, and despite contradictory reports. Croaking gouramis stretch and pluck two enhanced (sonic) pectoral fin tendons during alternate fin beating, resulting in a series of double-pulsed bursts termed croaking sound. We measured the diameter of the first and second sonic tendon and showed that male tendons were twice as large as in same-sized females. We also determined the duration of dyadic contests, visual displays, number of sounds and buttings. Sexes differ in all sound characteristics but in no behavioural variable. Male sounds consisted of twice as many bursts, a higher percentage of double-pulsed bursts and a higher burst period. Additionally, male sounds had a lower dominant frequency and a higher sound level. In summary, female pygmy gouramis possessed sonic organs and vocalized in most dyadic contests. The sexual dimorphism in sonic tendons is clearly reflected in sex-specific differences in sound characteristics, but not in agonistic behaviour, supporting the hypothesis that females are vocal.

Allen, Gerald R., 1942- author