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Syngnathid Fishes: Biology, Ecology, Physiology, Conservation and Innovative Rearing Techniques
Syngnathids are a large and diverse group of fishes, including seahorses, pipefishes, seadragons and pipehorses, These iconic and vulnerable fishes are distributed worldwide in warm temperate to tropical environments, usually in coastal shallow water. Most species are marine and strongly associated with vegetal communities or coral reefs, which provide shelter and the necessary dietary resources. Syngnathids have a unique reproductive mode with parental care, diverse brooding structures and other special characteristics that make them highly vulnerable. These iconic fishes are facing several threats, namely environmental disturbances and habitat regression. However, many of their biological,...
The Curious World of Seahorses
With the whimsy and heart of The Soul of an Octopus and the surprising details of the very best science writing, The Curious World of Seahorses brilliantly captures the ocean’s most charismatic and mysterious inhabitant. "When God created the seahorse," says one marine biologist, "he may have had one too many." Of all the creatures in the ocean, there are none more charming and magical—or more strange—than the seahorses. Masters of disguise, graceful dancers, and romantic lovers, seahorses are found not only in the seagrass meadows and mangroves of the world, but also throughout the annals of human history and culture—surfacing everywhere from chess and Greek mythology to Disney movi...
Immunomodulators in Aquaculture and Fish Health
This reference book provides updated information about different immunomodulators for managing fish health and sustainable aquaculture. Immunomodulators are dietary additives that enhance innate defense mechanisms and increase resistance against specific pathogens and diseases. The book covers the different types of immunostimulants, their modes of action, and their efficacies. It also reviews safety concerns, ethical regulations, limitations, and outreach to farmers. It discusses the application of herbal immunomodulators, antioxidants, pre- and pro-biotics, in disease management. Features: • Reviews the pressing topic of reduction of antibiotic use in aquaculture • Discusses herbal immunomodulators, nutrients, antioxidants and pre- and pro-biotics • Covers the topic of progressive immunomodulation using nanotechnology • Discusses fish health management in the ever-growing aquaculture industry • Includes natural and synthetic immunomodulators The book is meant for researchers and industry experts in aquaculture, fisheries science, and veterinary medicine.
basic English for dummies
كتاب basic English for dummies هو دليل عملي ومفيد لتعلم قواعد اللغة الإنجليزية وتحسين مهاراتك في التواصل. يغطي الكتاب مواضيع مختلفة مثل: أنواع الكلمات وأدوارها في الجملة، مثل الأسماء والضمائر والأفعال والصفات والظروف والحروف الجر والروابط - أزمنة الأفعال وكيفية استخدامها للتعبير عن الحاضر والماضي والمستقبل والعلاقات بين الأحداث - عناصر الجملة الكاملة وكيفية تركيبها بشكل صحيح ومنطقي، مع مرا...
Basic English Grammar For Dummies - US
The easy way to brush up on your English skills Is it good or well? There, their, or they're? Some people don't have to think twice about using proper English, but for the rest of us it can get tricky and confusing. Whether you're writing or speaking, it's all too easy to fall prey to simple mistakes that will represent you in a less-than-desirable light—which can potentially cost you a job or put you in an embarrassing social situation. Avoiding complicated grammar rules, Basic English For Dummies sticks to the basics and makes it easy to get up and running on what you need to know to partake in successful everyday communication, no matter your audience or medium. Inside, you'll find plen...
