Zoologi: fisk (iktyologi)

En overskuelig og meget omfattende guide til Nordeuropas havfisk. Bogen beskriver og illustrerer mere end 300 forskellige fiskearter, deres byttedyr, fiskemetoder og hvad de anvendes til. Bogen omhandler samtlige de fisk man finder i de danske farvande og viser ved udbredelseskort, hvor de i øvrigt findes i Europa. Bogens mange hundrede tegninger står stadig efter over 40 år siden udgivelsen af 1. udgaven, som det ypperste blandt fisketegninger i verden.

Atlas over danske ferskvandsfisk er det mest omfattende værk om de danske ferskvandsfisk, der nogensinde er udgivet. Atlasset rummer opdaterede udbredelseskort for alle oprindelige danske ferskvandsfisk og hovedparten af de arter, der gennem tiden er indført til Danmark. For hver art er der grundige afsnit om systematik, kendetegn, udbredelse og biologi.Bogen indeholder desuden generelle afsnit om fisk, fiskenes levesteder, deres artsrigdom på forskellige levesteder og i forskellige dele af landet. Herudover findes et afsnit om fiskenes indvandring efter istiden og et afsnit om sygdomme hos ferskvandsfisk.Atlas over danske ferskvandsfisk er rigt illustreret med fotos af fiskene, særlige kendetegn, deres levesteder og meget mere.Bag bogen står Henrik Carl, Jørgen G. Nielsen og Peter Rask Møller fra Statens Naturhistoriske Museum, Københavns Universitet, og Gorm H. Rasmussen og Søren Berg fra DTU Aqua.

"Dykkerens Fiskebog" er uundværlig for dykkere og snorklere som besøger troperne. Især i Thailand, men også i resten af Indo-pacific er bogen et nyttigt redskab til at bestemme de fisk, man ser.I bogen er beskrevet 325 fiskearter med tekst og billeder. Fotografierne er fra Andamanerhavet, så fiskene optræder i deres naturlige omgivelser og de lokale variationer, som findes netop i dette område.I bogen findes desuden et stort afsnit med andre tropiske havdyr, bl.a. koraller, søpindsvin, krabber, muslinger, snegle, havslanger og havskildpadder.I "Dykkerens Fiskebog" er der, for første gang, brugt de officielle videnskabelige danske navne til samtlige fiskearter. Desuden er de engelske og latinske betegnelser medtaget.

I den nye Steen Ulnits-bog, Laks & havørred, øser han ud af al sin viden om disse kongefisk. Undertitlen er Opgangsfisk, da der er særligt fokus på de forhold, der gør sig gældende, når man vil fange de fisk, der er på vej op i vandløb for at gyde. Desuden inddrages andre arter, fx Røding og Stalling, som har samme opgangsadfærd som Laksefisk.Bogen indeholder alt, hvad en fluefisker har brug for at vide, om standpladser, grejet, fluerne, fiskenes adfærd, teknikker og meget andet. Det hele er krydret med tipsbokse og rigtige lystfiskerhistorier!Både nybegyndere og øvede vil finde gode råd og ny viden i denne guldgrube af en lystfiskerbog.

I den nye Steen Ulnits-bog, Tørflue og nymfe, behandler han med sædvanlig kyndig hånd den fiskemetode, som regnes for den fineste inden for fluefiskeri. Fluefiskeri med tørflue og nymfe er en kunstart, der kræver indgående kendskab til insekternes liv, adfærd og formering.Bogen indeholder detaljeret viden om de for fisk – og fiskere – vigtigste insekter og deres levevis. Med indsigt i livet under vandet bliver fluefiskeren i stand til at vælge både rette tid, sted og flue, hvilket fører til flere fangede fisk!I Tørflue og nymfe er der ud over dybdegående kapitler om insekterne også kapitler om grejet, særlige teknikker, ørrederne og fluemønstre, så man kan binde sine egne tørfluer.De mange tipsbokse giver ekstra viden om særlige emner, og lystfiskerhistorierne fra så godt som hele verden gør Tørflue og nymfe til en sand læseoplevelse.

Hvad er rogn, og hvordan kan vi bruge den i vores køkken på en bæredygtig måde med respekt for naturen og med fokus på smag, ikke mindst i det grønne køkken? Rogn er æg fra fisk, krebsdyr og bløddyr og spises både som en dagligdags, folkekær spise som torskerogn og er populær som sæsonvare som stenbiderrogn, men rogn er også en eftertragtet og dyr, gastronomisk delikatesse som caviar.Bogen Rogn illustrerer de forskellige anvendelser af mange slags rogn både ved klassiske og nyfortolkede retter såvel som helt nye tilberedninger.Den er blevet til som et samarbejde mellem en kok, Klavs Styrbæk, og en videnskabsmand, Ole G. Mouritsen, der sammen er gået i køkkenet for at blive klogere på rogn ved at smage sig frem, eksperimentere og udvise interesse for at kombinere nysgerrighed og viden med godt kokkehåndværk.Rogn, der er flot illustreret med fotografier af Jonas Drotner Mouritsen, henvender sig til et bredt publikum, som er interesseret i verden og den del af verden, vi spiser.

An "illustrated guide to the incredible diversity of snakes around the world. Snakes are found on every continent except Antarctica and have evolved to occupy a vast range of habitats, from mountains to oceans and deserts to rain forests. Snakes of the World explores their extraordinary diversity, with an in-depth introduction covering anatomy, behavior, habitats, reproduction, conservation, and other essential topics. This expert guide also includes profiles of some of the approximately 4,000 species of snakes, featuring examples from every family and subfamily. Each family profile highlights the remarkable appearance, characteristics, and lifestyle of notable snake species. Covering how snakes use venom or constriction to subdue their prey, how a snake's appearance can aid camouflage or boast of its killing capacity, and how habitat destruction is jeopardizing the future of many species, Snakes of the World is an invaluable guide to these fascinating reptiles."--Back cover.

A Best Book of 2020: The Washington Post * NPR * Chicago Tribune * Smithsonian A “remarkable” (Los Angeles Times), “seductive” (The Wall Street Journal) debut from the new cohost of Radiolab, Why Fish Don’t Exist is a dark and astonishing tale of love, chaos, scientific obsession, and—possibly—even murder.​ “At one point, Miller dives into the ocean into a school of fish…comes up for air, and realizes she’s in love. That’s how I felt: Her book took me to strange depths I never imagined, and I was smitten.” —The New York Times Book ReviewDavid Starr Jordan was a taxonomist, a man possessed with bringing order to the natural world. In time, he would be credited with discovering nearly a fifth of the fish known to humans in his day. But the more of the hidden blueprint of life he uncovered, the harder the universe seemed to try to thwart him. His specimen collections were demolished by lightning, by fire, and eventually by the 1906 San Francisco earthquake—which sent more than a thousand discoveries, housed in fragile glass jars, plummeting to the floor. In an instant, his life’s work was shattered. Many might have given up, given in to despair. But Jordan? He surveyed the wreckage at his feet, found the first fish that he recognized, and confidently began to rebuild his collection. And this time, he introduced one clever innovation that he believed would at last protect his work against the chaos of the world. When NPR reporter Lulu Miller first heard this anecdote in passing, she took Jordan for a fool—a cautionary tale in hubris, or denial. But as her own life slowly unraveled, she began to wonder about him. Perhaps instead he was a model for how to go on when all seemed lost. What she would unearth about his life would transform her understanding of history, morality, and the world beneath her feet. Part biography, part memoir, part scientific adventure, Why Fish Don’t Exist is a wondrous fable about how to persevere in a world where chaos will always prevail.

They spawn in the middle of the ocean but spend their adult lives in freshwater. They can overcome seemingly insurmountable obstacles and even cross over land. They are revered as guardians and monster-seducers by New Zealand's Maori, yet are often viewed with disgust in the West. They are a multibillion-dollar business in the Asian food market. They are often mistaken for snakes. They are eels?one of the world's most amazing and least understood fish. (Yes, fish.) James Prosek offers a fascinating tour through the life history and cultural associations of the freshwater eel, exploring its biology, its myth and lore, its mystery and beauty. Eels is a mesmerizing biography of an intriguing and mysterious creature, as well as a telling look at humanity, the will to persist, and the ever-changing relationship between man and the natural world.

Neil Shubin, the paleontologist and professor of anatomy who co-discovered Tiktaalik, the "fish with hands," tells the story of our bodies as you've never heard it before. The basis for the PBS series. By examining fossils and DNA, he shows us that our hands actually resemble fish fins, our heads are organized like long-extinct jawless fish, and major parts of our genomes look and function like those of worms and bacteria. Your Inner Fish makes us look at ourselves and our world in an illuminating new light. This is science writing at its finest-enlightening, accessible and told with irresistible enthusiasm.

Harvesting Hope: Alternative Livelihoods for Ghanaian FisherfolkDiscover the profound journey of Ghanaian fishers facing the challenges of a declining fishery in "Harvesting Hope: Alternative Livelihoods for Ghanaian Fisherfolk." This compelling study delves into the intricate dynamics of effort controls, exploring the delicate balance between preserving the marine ecosystem and safeguarding the livelihoods of those dependent on the fishery.Unveiling the Complex WebThe Tension of Effort ControlsWillingness to Exit: A Critical ExaminationTema's Dilemma: Urbanization vs. TraditionUrbanized Realities in GhanaGenerations in Fishing: A Familial BondCrafting Solutions: Proposals and RecommendationsNavigating the Path Forward

"Homarus Gammarus: The European Lobster in Atlantic Waters" offers a thorough investigation of the charming universe of Homarus gammarus, revealing insight into this notable shellfish species inside the huge region of the Atlantic Waters. The book dives into the scientific classification, science, and life pattern of the European Lobster, giving perusers a nuanced comprehension of its one of a kind qualities.Perusers set out on an excursion through the different living spaces that the European Lobster calls home, acquiring bits of knowledge into its dissemination, ecological inclinations, and the variables forming its geological reach inside Atlantic Waters. The natural subtleties of the species are unwound, including its taking care of propensities, dietary inclinations, and cooperations with different parts of the marine biological system.The verifiable setting of European Lobster fisheries becomes the overwhelming focus, following the direction of human connections with this significant asset. The book inspects the monetary meaning of Homarus gammarus, offering a basic investigation of supportable fisheries the board rehearses significant for the protection of lobster populaces.Despite advancing natural difficulties, the book tends to the preservation status of European Lobster populaces, introducing an inside and out investigation of the dangers they experience and exhibiting fruitful protection drives. Environmental change arises as a crucial subject, explaining its effects on Atlantic Waters and the versatile methodologies utilized by the European Lobster to explore evolving conditions.The techniques utilized in concentrating on the species are demystified, giving perusers an in the background take a gander at the examination strategies and mechanical headways driving lobster research. The book finishes up with a forward-looking viewpoint on the capability of European Lobster hydroponics, gauging its benefits, difficulties, and commitments to manageable practices."Homarus Gammarus: The European Lobster in Atlantic Waters" fills in as a significant asset for researchers, moderates, and devotees the same, offering a rich embroidery of information that not just extends how we might interpret this charming species yet additionally highlights the significance of dependable stewardship in protecting its future in the powerful domain of Atlantic Waters.

"Clownfish in Gaming: From Virtual Seas to Perky Pixels" welcomes perusers on a dazzling excursion through the convergence of sea life science and the gaming business. This exceptional investigation digs into the starting points of gaming and its advancement, attracting equals to the entrancing universe of clownfish in both normal and virtual conditions.Starting with a clever gander at the historical backdrop of computer games, the book discloses the development of virtual domains and their profound association with the marvels of marine life. The account then turns to this present reality domain of clownfish, investigating their science, conduct, and the coral reefs they call home. This makes way for the virtual excursion, where these famous fish rise above from the profundities of genuine seas to the pixels of virtual universes."Nemo's Heritage" unfurls as the book analyzes the portrayal of clownfish in gaming, both as playable characters and essential parts of narrating. The development of gaming advances becomes the overwhelming focus, with an emphasis on the progressions in illustrations and movement that carry remarkable authenticity to virtual clownfish conduct, encouraging player commitment and submersion.Past simple diversion, the story takes an intriguing turn by tending to the capability of gaming as an instrument for protection and schooling. Perusers find how virtual marine conditions can raise natural mindfulness and add to certifiable protection endeavors, fashioning a startling extension between the gaming business and sea life science.Notwithstanding, the book doesn't avoid the difficulties and discussions encompassing the depiction of marine life in games, provoking an investigation of moral worries and the sensitive harmony among amusement and obligation. The account grows its extension, wandering into the portrayal of other marine species in gaming and thinking about future prospects and developments.Basically, "Clownfish in Gaming" fills in as a thorough manual for the captivating conversion of science and gaming, uncovering the potential for coordinated effort between sea life researcher and game designers. This work not just commends the effect of clownfish in gaming yet additionally lights a more extensive discussion about the significant associations between virtual universes and the many-sided magnificence of our normal seas.

Viral flare-ups in fish populaces present critical dangers to sea-going biological systems and hydroponics businesses, requiring a thorough comprehension of determination and control measures. These episodes, frequently brought about by assorted viral microorganisms, can prompt mass mortalities, monetary misfortunes, and biological uneven characters. Diagnosing viral flare-ups in fish is a perplexing cycle that requires a diverse methodology. Sub-atomic strategies, for example, polymerase chain response (PCR) and cutting edge sequencing, assume a significant part in recognizing the particular infections included. Histopathological assessments of impacted fish tissues additionally help in affirming viral diseases. Early recognition is central to carrying out opportune control gauges and forestalling additionally spread. Control procedures for viral episodes in fish populaces include a blend of biosecurity measures, immunization, and antiviral medicines. Biosecurity conventions, including severe quarantine measures and cleanliness rehearses, assist with forestalling the presentation and spread of infections inside hydroponics offices. Immunization programs, custom-made to explicit viral strains, add to building resistance in fish populaces. Antiviral medicines, for example, antiviral medications or safe helping compounds, might be applied in flare-up circumstances to relieve the effect of the infection. Ecological administration is one more basic part of controlling viral episodes in fish. Legitimate water quality administration, natural surroundings reclamation, and limiting stressors on fish populaces can improve their strength to viral diseases. Furthermore, public mindfulness and schooling programs assume an imperative part in advancing dependable hydroponics practices and decreasing the gamble of viral transmission. Worldwide cooperation and examination endeavors are fundamental for creating powerful demonstrative instruments and control methodologies. Persistent observing of fish populaces, combined with research on arising viral dangers, considers proactive measures and quick reactions to expected flare-ups.All in all, tending to viral flare-ups in fish populaces requires a diverse methodology enveloping exact conclusion, rigid biosecurity measures, immunization, antiviral medicines, and ecological administration. By incorporating these methodologies, the hydroponics business and oceanic biological systems can more readily endure the difficulties presented by viral microorganisms, guaranteeing the manageability of fish populaces and defending the monetary and natural equilibrium of amphibian conditions.

Si parla spesso del rapporto tra uomo e animale domestico, della profondità e dell'intensità delle emozioni e dei sentimenti che lo caratterizzano, ma cosa succede quando l'amico in questione ha le pinne e una lunga coda ricca di spuntoni?A seguito di una violenta mareggiata, una scrittrice un po' pazza trova sulla battigia un uovo di razza spiaggiato ancora vitale e decide di portarlo a casa per prendersene amorevolmente cura. Inizia così un'incredibile avventura fatta di curiosità, fiducia, complicità e passione, dove la magia dell'amicizia si fonde con la selvaggia bellezza della natura, creando un legame unico che sopravviverà per sempre al lento scorrere del tempo.

BackgroundThe Squamish Streamkeepers, whose reason for existence is to help wild salmon populations in the Squamish River watershed, began to wonder if they should expand their work to include Pacific herring. Herring used to spawn in great numbers in the estuary at the mouth of the Squamish River and is a major source of food for young salmon migrating out of the river and into Howe sound. So in 2006, the streamkeepers began formulating a plan to help bring herring populations back to their former levels of abundance.The DiscoveryIn 2008, while trying to encourage herring to spawn on hemlock boughs near the Squamish Terminals, the streamkeepers found dead herring eggs on the pilings of the east dock. They decided to investigate and discovered millions of dead eggs on many of the pilings. They decided to try and wrap the pilings with non-toxic material to protect the eggs from the creosote on the pilings. Initially the plan worked. But the next year, many of the eggs on the wraps died. Time and again the streamkeeper project was thwarted by wind, extreme air temperatures, oil spills, and disease. Even a massive fire at the Squamish terminals that wiped out all of their work did not stop them from trying to help the herring in Howe Sound and False Creek.The Bigger PictureSince contact with European settlers in the late 1800's, herring populations on Canada's west coast have had to survive over zealous fishing pressure, spawning habitat degradation, and now diseases amplified from open net pen fish farms.In spite of the importance to the marine ecosystem, herring and other small pelagic fishes are considered trash fish in some circles because they are not large enough for human consumption. So, they are often caught, ground up and turned into other products like fish meal or fish oil products. The trouble with our use of these fish is they are essential to the functioning of the marine food web. Herring are the main food source for so many species.When I began to make this film over ten years ago, I had to stop production many times because it was difficult getting footage of herring at the different stages of its lifecycle. And as often happened, I would miss getting the crucial shots around spawning times because there might only be 3 to 5 days a year when the spawn happens. Finally, after many years, I got herring footage at the egg, larva, juvenile and adult stages. The result is an amazingly visual experience for the audience.Includes an extensive bibliography and over 105 photos in colour and black and white.

Featuring beautiful illustrations of 70 common native and introduced freshwater species, this handy resource includes descriptions of fish anatomy, a key to field marks, a watershed map, and each species' conservation status. Laminated for durability, this lightweight, 12-panel folding pocket guide is the perfect companion for educators, learners, naturalists, and anglers who wish to sharpen their identification skills and peer more closely into the fascinating lives of Ontario's fishes. Made in the USA.

Portable and beautifully illustrated, this helpful resource features all 67 species found in the province to allow for quick and easy identification. Printed on waterproof paper for durability in all conditions, our lightweight, 12-panel folding pocket guide is a terrific companion for anglers, fish watchers, and naturalists who wish to sharpen their identification skills and learn more about the fishes found throughout Saskatchewan. Made in the USA.

Alberta Fishes highlights 70 native and introduced species. This beautifully illustrated guide provides descriptions on fish anatomy, a key to field marks, a watershed map and conservation status. Printed on waterproof paper for durability, this pocket guide is an excellent source of information, ideal for use by novices and experts.

Featuring beautiful illustrations of 90 common native and introduced freshwater and near-shore marine species, this portable reference includes descriptions of fish anatomy, a key to field marks, a watershed map, and each species' conservation status. Laminated for durability, this lightweight, 12-panel folding pocket guide is the perfect companion for educators, learners, naturalists, and anglers who wish to peer more closely into the fascinating lives of fishes in British Columbia. Made in the USA.

"Includes all 150 species of venomous elapid snakes in Australia. Species accounts are illustrated with photos, distribution maps, and anatomical drawings and include natural history, range, and habitat information, identification guidelines, rate of lethality, and conservation status. Also in the book are instructions for first aid treatment of snake bites and a description of antivenoms"--