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"FISH CULTURE"
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Seafood
\"This book explains how seafood is are raised, harvested, and processed. It also explores the pros and cons of fish farming and fishing in the wild\"-- Provided by the publisher.
Book
Cleaner fish biology and aquaculture applications
Cleaner fish are increasingly being deployed in aquaculture as a means of biological control of parasitic sea lice, and, consequently, the farming of wrasse and lumpfish, the main cleaner fish species in current use in salmon farming, is now one of the fastest expanding aquaculture, sectors with over 40 hatcheries in Norway alone. This book reviews and presents new knowledge on the biology of the utilised cleaner fish species, and provides protocols in cleaner fish rearing, deployment, health, and welfare. The latest knowledge is presented on specialist technical areas, such as: cleaner fish nutrition; genetics; immunology and vaccinology; transport; and more. Contributions from over 60 leading researchers and producers give an exciting mix of information and debate. Written by a team of internationally-recognised experts in cleaner fish biology, culture, and deployment this book will be an essential purchase for hatchery managers, salmonid producers, fish farm operatives, researchers, regulators, students, and enthusiasts working with, and interested in, cleaner fish.
eBook
The aquaponic farmer : a complete guide to building and operating a commercial aquaponic system
Built around a proven 120' greenhouse system operable by one person, the book distills vast experience and complete step-by-step guidance for starting and running a cold-water aquaponics business. Coverage includes a primer on cold-water aquaponics; pros and cons of different systems; complete design and construction of a deep water culture system; recommended and optional equipment and tools; system management, standard operating procedures, and maintenance checklists; maximizing fish and vegetable production; and strategies for successful sales and marketing of fish and plants. As the only comprehensive commercial cold-water resource, The Aquaponic Farmer is essential for farmers contemplating the aquaponics market, aquaponic gardeners looking to go commercial, and anyone focused on sustainability, localization, or high-quality food production.--COVER.
Book
Health maintenance and principal microbial diseases of cultured fishes
Health Maintenance and Principal Microbial Diseases of Cultured Fishes, Third Edition is a thoroughly revised and updated version of the classic text. Building on the wealth of information presented in the previous edition, this new edition offers a major revision of the valuable health maintenance section, with new pathogens added throughout the book. Health Maintenance and Principal Microbial Diseases of Cultured Fishes, Third Edition focuses on maintaining fish health, illustrating how management can reduce the effects of disease. The text is divided into sections on health maintenance, viral diseases, and bacterial diseases, and covers a wide variety of commercially important species, including catfish, salmon, trout, sturgeon, and tilapia. This book is a valuable resource for professionals and students in the areas of aquaculture, aquatic health maintenance, pathobiology, and aquatic farm management.
eBook
Aquaculture technology : flowing water and static water fish culture
Aquaculture Technology: Flowing Water and Static Water Fish Culture is the first book to provide the skills to raise fish in both a flowing water and a static water aquaculture system with a pragmatic and quantitative approach. The book presents the scientific basis for the controlled husbandry of fish, whether it be in a stream of water or a standing water pool. Part 1, Flowing Water Fish Culture, is a major revision of the author's initial book and includes greatly expanded coverage of rearing unit design criteria, fish growth and the use of liquid oxygen, hatchery effluent control, and recirculating systems. Part 2, Static Water Fish Culture, presents the scientific basis of fish culture in standing water systems including nutrient and dissolved gas dynamics, pond ecology, effects of fertilization and supplemental feeding, water quality management and representative static water aquacultures.
Book
Genetic resources of Nile tilapia (Oreochromis niloticus Linnaeus, 1758) in its native range and aquaculture
Nile tilapia (Oreochromis niloticus) is the third-most important fish species in global aquaculture. Its farmed production has experienced a sharp rise in the last two decades, and it is among the top aquaculture species of choice for addressing the problem of food security in many developing countries. Africa holds the wealth of its natural genetic resources, however its aquaculture production is dominated by Asian countries. Native wild Nile tilapia populations in Africa have contributed to development of fast-growing aquaculture strains, and also hold strong potential for further development of new strains with desirable aquaculture traits. The genetic diversity of natural populations in Africa has not been fully characterized, and faces a serious threat of loss due to habitat degradation, pollution, unsustainable utilization of water resources and introgressive hybridization with non-native strains and congeneric species. In this review, topics pertinent to Nile tilapia native genetic resources in Africa, its aquaculture production, progress in genetic improvement of cultured strains and application, threats to native populations in the wild, and conservation strategies for sustainable utilization of natural genetic resources are addressed.
Journal Article
Aquaculture changes the profile of antibiotic resistance and mobile genetic element associated genes in Baltic Sea sediments
Antibiotics are commonly used in aquaculture and they can change the environmental resistome by increasing antibiotic resistance genes (ARGs). Sediment samples were collected from two fish farms located in the Northern Baltic Sea, Finland, and from a site outside the farms (control). The sediment resistome was assessed by using a highly parallel qPCR array containing 295 primer sets to detect ARGs, mobile genetic elements and the 16S rRNA gene. The fish farm resistomes were enriched in transposon and integron associated genes and in ARGs encoding resistance to antibiotics which had been used to treat fish at the farms. Aminoglycoside resistance genes were also enriched in the farm sediments despite the farms not having used aminoglycosides. In contrast, the total relative abundance values of ARGs were higher in the control sediment resistome and they were mainly genes encoding efflux pumps followed by beta-lactam resistance genes, which are found intrinsically in many bacteria. This suggests that there is a natural Baltic sediment resistome. The resistome associated with fish farms can be from native ARGs enriched by antibiotic use at the farms and/or from ARGs and mobile elements that have been introduced by fish farming.
Antibiotic resistome associated with fish farms can be from native antibiotic resistance genes (ARGs) enriched by antibiotic use at the farms and/or from ARGs and mobile elements that have been introduced by fish farming.
Graphical Abstract Figure.
Antibiotic resistome associated with fish farms can be from native antibiotic resistance genes (ARGs) enriched by antibiotic use at the farms and/or from ARGs and mobile elements that have been introduced by fish farming.
Journal Article
Recent progress in European percid fish culture production technology—tackling bottlenecks
Eurasian perch (Perca fluviatilis) and pikeperch (Sander lucioperca) have been identified as candidates for production in aquaculture with the potential to deliver products of high quality and value and associated market acceptance. Current aquaculture production of these species predominately targets niche, premium markets, and its up-scaling is still limited due to several bottlenecks. This paper summarizes the most important and recent technological aspects and innovations regarding broodstock management, controlled reproduction, larval and early juvenile stages, nursery, and grow-out culture including methods for the improvement of growth and production in percid fishes. This review study also attempts to identify and outline further prospects and challenges for the future development of the percid aquaculture sector in Europe.
Journal Article
Application of Deep Learning-Based Object Detection Techniques in Fish Aquaculture: A Review
Automated monitoring and analysis of fish’s growth status and behaviors can help scientific aquaculture management and reduce severe losses due to diseases or overfeeding. With developments in machine vision and deep learning (DL) techniques, DL-based object detection techniques have been extensively applied in aquaculture with the advantage of simultaneously classifying and localizing fish of interest in images. This study reviews the relevant research status of DL-based object detection techniques in fish counting, body length measurement, and individual behavior analysis in aquaculture. The research status is summarized from two aspects: image and video analysis. Moreover, the relevant technical details of DL-based object detection techniques applied to aquaculture are also summarized, including the dataset, image preprocessing methods, typical DL-based object detection algorithms, and evaluation metrics. Finally, the challenges and potential trends of DL-based object detection techniques in aquaculture are concluded and discussed. The review shows that generic DL-based object detection architectures have played important roles in aquaculture.
Journal Article
Phytoplankton biomass variation after cage aquaculture removal from the Daheiting Reservoir, China: observations from satellite data
Cage-based aquaculture has been gradually discontinued in many lakes and reservoirs in China to reduce eutrophication triggered by the feed. This study aimed to analyse variations in phytoplankton biomass in Daheiting Reservoir before and after cage removal. Cage aquaculture in this reservoir was terminated in the spring of 2017. Changes in phytoplankton biomass were analysed using multispectral satellite data. Chlorophyll a concentration increased from 2016 to 2018, but decreased from 2018 to 2021. Cyanobacterial blooms were absent from 2016 to 2017, but suddenly appeared over an area of ~ 12.76 km2 in 2018 and gradually decreased to 0.55 km2 in 2021. Following the removal of cage aquaculture in 2017, phytoplankton biomass of the reservoir initially rapidly increased, peaking in 2018, and then declined. The rapid, short-term increase in phytoplankton biomass after cage removal might be due to sudden lack of algae predators (silver carp, bighead carp, and sturgeon, prey on algae and plankton), as cultured fish were removed from the reservoir. Decreased nutrient input in the water and the growth of wild fish resulted in subsequent decreases in phytoplankton biomass. These findings provide a reference for research methods and decision support for the change in phytoplankton biomass after cage removal.
Journal Article