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Aquaculture - Plants and Invertebrates

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ISBN: 9781789849967 9781789849974 Year: Pages: 116 DOI: 10.5772/intechopen.74183 Language: English
Publisher: IntechOpen
Subject: Aquaculture and Fisheries
Added to DOAB on : 2019-10-03 07:51:52

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This book is divided into three sections. Following the ""Introduction"", the second section, ""Sustainable Aquaculture"", offers integrated information on rice cultivation and aquaculture that provide additional benefits to producers. In addition, the participation of aquaculture in the restoration of the Crassostrea virginica fishery is evaluated. The third section, ""Homeopathy and Probiotics"", is about highly diluted substances and beneficial microorganisms that have proved their effectiveness in human medicine, agronomy, veterinary and currently in the marine aquaculture field. Also, a study focused on the performance of growth and nutrient utilization of the freshwater shrimp Macrobrachium vollenhovenii fed diets supplemented with Lactobacillus acidophilus is presented. This book can be consulted by students, professors and researchers in the area of biological sciences.

Aquaculture and the Environment - A Shared Destiny

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ISBN: 9789533077499 Year: Pages: 260 DOI: 10.5772/2463 Language: English
Publisher: IntechOpen
Subject: Aquaculture and Fisheries
Added to DOAB on : 2019-10-03 07:51:48

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Aquaculture is the art, science and business of cultivating aquatic animals and plants in fresh or marine waters. It is the extension of fishing, resulted from the fact that harvests of wild sources of fish and other aquatic species cannot keep up with the increased demand of a growing human population. Expansion of aquaculture can result with less care for the environment. The first pre-requisite to sustainable aquaculture is clean wate, but bad management of aquatic species production can alter or even destroy existing wild habitat, increase local pollution levels or negatively impact local species. Aquatic managers are aware of this and together with scientists are looking for modern and more effective solutions to many issues regarding fish farming. This book presents recent research results on the interaction between aquaculture and environment, and includes several case studies all over the world with the aim of improving and performing sustainable aquaculture.

Aquaculture

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ISBN: 9789533079745 Year: Pages: 402 DOI: 10.5772/1516 Language: English
Publisher: IntechOpen
Subject: Aquaculture and Fisheries
Added to DOAB on : 2019-10-03 07:51:48

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This book provides an understanding on a large variety of aquaculture related topics. The book is organized in four sections. The first section discusses fish nutrition second section is considers the application of genetic in aquaculture; section three takes a look at current techniques for controlling lipid oxidation and melanosis in Aquaculture products. The last section is focused on culture techniques and management, ,which is the larger part of the book. The book chapters are written by leading experts in their respective areas. Therefore, I am quite confident that this book will be equally useful for students and professionals in aquaculture and biotechnology.

Marine Ecosystems

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ISBN: 9789535101765 Year: Pages: 324 DOI: 10.5772/2131 Language: English
Publisher: IntechOpen
Subject: Aquaculture and Fisheries
Added to DOAB on : 2019-10-03 07:51:48

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Marine ecosystems, a very wide topic, includes many different processes, groups of organisms and geographical peculiarities. The objective of this book is to present various topics of great importance for understanding the marine ecosystems, what they are, how they work and how we can model them in order to forecast their behaviour under changing conditions. They have been thoroughly reviewed and accepted for publication. The chapters cover aspects such as: Threats to ultraoligotrophic marine ecosystems (Ch. 1); Modelling the pelagic ecosystem dynamics: the NW Mediterranean (Ch. 2); The marine ecosystem of the Sub-antarctic, Prince Edward Islands (Ch. 3); Meiofauna as a tool for marine ecosystem biomonitoring (Ch. 4); Chemical interactions in Antarctic marine benthic ecosystems (Ch. 5); An Interdisciplinary Approach on Erosion Mitigation for Coral Reef Protection- A Case Study from the Eastern Caribbean (Ch. 6); A revisit to the evolution and ecophysiology of the Labyrinthulomycetes (Ch. 7); Seabed mapping and marine spatial planning: a case-study from a Swedish marine protected area (Ch. 8); Management strategies to limit the impact of bottom trawling on VMEs in the High Seas of the SW Atlantic (Ch. 9); Hydrocarbon contamination and the swimming behavior of the estuarine copepod Eurytemora affinis (Ch. 10), and Interactions between marine ecosystems and tourism on the Adriatic and Mediterranean (Ch. 11).

Health and Environment in Aquaculture

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ISBN: 9789535104971 Year: Pages: 430 DOI: 10.5772/2462 Language: English
Publisher: IntechOpen
Subject: Aquaculture and Fisheries
Added to DOAB on : 2019-10-03 07:51:49

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Aquaculture has been expanding in a fast rate, and further development should rely on the assimilation of scientific knowledge of diverse areas such as molecular and cellular biology, and ecology. Understanding the relation between farmed species and their pathogens and parasites, and this relation to environment is a great challenge. Scientific community is involved in building a model for aquaculture that does not harm ecosystems and provides a reliable source of healthy seafood. This book features contributions from renowned international authors, presenting high quality scientific chapters addressing key issues for effective health management of cultured aquatic animals. Available for open internet access, this book is an effort to reach the broadest diffusion of knowledge useful for both academic and productive sector.

Sea Urchin - From Environment to Aquaculture and Biomedicine

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ISBN: 9789535135258 9789535135265 Year: Pages: 154 DOI: 10.5772/65503 Language: English
Publisher: IntechOpen
Subject: Aquaculture and Fisheries
Added to DOAB on : 2019-10-03 07:51:50

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This book is addressed to the readers operating in the sea urchin field of research, as well as to the lovers of this fascinating organism. Sea urchin, among the most known marine invertebrates belonging to the deuterostomes, is more closely related to humans than other invertebrates, thus representing a suitable model system not only for developmental biology and ecotoxicology but also for biomedicine. The topics described highlight the validity and versatility of this organism for different kinds of investigations. A collection of interesting chapters contributes to this volume and clearly shows the reason of the high interest manifested by a huge number of scientists around the world for this organism over time. Each contribution is a separate and comprehensive chapter but within the book's aim.

Roles and mechanisms of parasitism in aquatic microbial communities

Authors: --- ---
Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889195886 Year: Pages: 153 DOI: 10.3389/978-2-88919-588-6 Language: English
Publisher: Frontiers Media SA
Subject: Microbiology --- Science (General)
Added to DOAB on : 2016-03-10 08:14:32
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Next Generation Sequencing technologies are increasingly revealing that microbial taxa likely to be parasites or symbionts are probably much more prevalent and diverse than previously thought. Every well studied free-living species has parasites; parasites themselves can be parasitized. As a rule of thumb, there is an estimated 4 parasitic species for any given host, and the better a host is studied the more parasites are known to infect it. Therefore, parasites and other symbionts should represent a very large number of species and may far outnumber those with 'free-living' lifestyles. Paradoxically, free-living hosts, which form the bulk of our knowledge of biology, may be a minority! Microbial parasites typically are characterized by their small size, short generation time, and high rates of reproduction, with simple life cycle occurring generally within a single host. They are diverse and ubiquitous in the environment, comprising viruses, prokaryotes and eukaryotes. This Frontiers Research Topic sought to provide a broad overview but concise, comprehensive, well referenced and up-to-date state of the art for everyone involved with microbial parasites in aquatic microbial ecology.

Welfare of Cultured and Experimental Fishes

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ISBN: 9783039217106 9783039217113 Year: Pages: 132 DOI: 10.3390/books978-3-03921-711-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Animal Sciences
Added to DOAB on : 2019-12-09 11:49:16
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Welfare is a multidimensional concept that can be described as the state of an animal as it copes with the environment. Captive environments can impact farmed animals at different levels, especially fishes, considering their highly complex sensory world. Understanding the ethology of a species is therefore essential to address fish welfare, and the interpretation of behavioral responses in specific rearing contexts (aquaculture or experimental contexts) demands knowledge of their underlying physiological, developmental, functional, and evolutionary mechanisms. In natural environments, the stress response has evolved to help animals survive challenging conditions. However, animals are adapted to deal with natural stressors, while anthropogenic stimuli may represent stressors that fishes are unable to cope with. Under such circumstances, stress responses may be maladaptive and cause severe damage to the animal. As welfare in captivity is affected in multiple dimensions, multiple possible indicators can be used to assess the welfare state of individuals. In the past, research on welfare has been largely focusing on health indicators and predominantly based on physiological stress. Ethological indicators, however, also integrate the mental perspective of the individual and have been gradually assuming an important role in welfare research: behavioral responses to stressors are an early response to adverse conditions, easily observable, and demonstrative of emotional states. Many behavioral indicators can be used as non-invasive measurements of welfare in practical contexts such as aquaculture and experimentation. Presently, research in fish welfare is growing in importance and interest because of the growing economic importance of fish farming, the comparative biology opportunities that experimental fishes provide, and the increasing public sensitivity to welfare issues.

Dinophysis Toxins: Distribution, Fate in Shellfish and Impacts

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ISBN: 9783039213634 9783039213641 Year: Pages: 376 DOI: 10.3390/books978-3-03921-364-1 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General) --- Public Health
Added to DOAB on : 2019-12-09 11:49:15
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Several species of Dinophysis produce one or two groups of lipophilic toxins: okadaic acid (OA) and its derivatives; or the dinophysistoxins (DTXs) (also known as diarrhetic shellfish poisons or DSP toxins) and pectenotoxins (PTXs). DSP toxins are potent inhibitors of protein phosphatases, causing gastrointestinal intoxication in consumers of contaminated seafood. Forty years after the identification of Dinophysis as the causative agent of DSP in Japan, contamination of filter feeding shellfish exposed to Dinophysis blooms is recognized as a problem worldwide. DSP events affect public health and cause considerable losses to the shellfish industry. Costly monitoring programs are implemented in regions with relevant shellfish production to prevent these socioeconomic impacts. Harvest closures are enforced whenever toxin levels exceed regulatory limits (RLs). Dinophysis species are kleptoplastidic dinoflagellates; they feed on ciliates (Mesodinium genus) that have previously acquired plastids from cryptophycean (genera Teleaulax, Plagioselmis, and Geminigera) nanoflagellates. The interactions of Dinophysis with different prey regulate their growth and toxin production. When Dinophysis cells are ingested by shellfish, their toxins are partially biotransformed and bioaccumulated, rendering the shellfish unsuitable for human consumption. DSP toxins may also affect shellfish metabolism. This book covers diverse aspects of the abovementioned topics—from the laboratory culture of Dinophysis and the kinetics of uptake, transformation, and depuration of DSP toxins in shellfish to Dinophysis population dynamics, the monitoring and regulation of DSP toxins, and their impact on the shellfish industry in some of the aquaculture regions that are traditionally most affected, namely, northeastern Japan, western Europe, southern Chile, and New Zealand.

Keywords

harmful algal bloom --- Diarrheic Shellfish Poisoning --- okadaic acid --- toxin accumulation --- toxin vectors --- trophic transfer --- Brazil --- diarrhetic shellfish toxins (DST) --- Mytilus galloprovincialis --- DST accumulation --- DST esterification --- suspended particulate matter (SPM) --- harmful algal blooms --- okadaic acid --- Argopecten irradians --- transcriptomic response --- deep sequencing --- pectenotoxins --- surf clam --- accumulation --- biotransformation --- depuration --- diarrhetic shellfish toxins --- accumulation --- dinophysistoxin --- Japanese scallop --- dinophysis --- LC/MS/MS --- statistical analysis --- Dinophysis --- HAB monitoring --- DSP toxins --- aquaculture --- shellfish toxicity --- human health --- time-series --- seasonality --- Scotland --- DSP toxins --- bivalves --- mussel --- resistance --- RNA-Seq --- qPCR --- metabolism --- defense --- immunity --- DSP toxins --- pectenotoxins --- Dinophysis acuminata --- Mesodinium rubrum --- bacterial community --- high throughput sequencing --- diarrhetic shellfish toxins --- Dinophysis --- wild harvest --- bivalve shellfish --- pipis (Plebidonax deltoides) --- Sydney rock oyster (Saccostrea glomerata) --- okadaic acid --- pectenotoxins --- Dinophysis toxins --- accumulation --- digestion --- biotransformation --- compartmentalization --- depuration --- kinetics --- Dinophysis --- diarrhetic shellfish poisoning --- marine toxins --- pectenotoxin --- okadaic acid --- dinophysistoxin --- okadaic acid --- pectenotoxins --- Dinophysis --- D. acuminata-complex --- D. caudata --- Argopecten purpuratus --- Dinophysis --- Mesodinium --- cryptophytes --- predator-prey preferences --- Diarrhetic Shellfish Toxins (DST) --- pectenotoxins (PTXs) --- mixotrophic cultures --- mass culture conditions --- Dinophysis acuminata --- Protoceratium reticulatum --- Reloncaví Fjord --- OMI analysis --- WitOMI analysis --- Mesodinium cf. rubrum --- El Niño Southern Oscillation --- Southern Annual Mode --- Dinophysis acuta --- Dinophysis acuminata --- DSP --- physical–biological interactions --- niche partitioning --- climatic anomaly --- Dinophysis acuminata --- Mesodinium rubrum --- lysate --- organic matter --- diarrhetic shellfish poisoning --- okadaic acid --- dinophysistoxin --- pectenotoxins --- dinophysis --- DSP --- toxins --- OA --- DTX-2 --- PTXs --- Dinophysis acuminata --- dinophysistoxins --- pectenotoxins --- Port Underwood --- New Zealand --- Dinophysis --- Diarrhetic shellfish toxins --- marine biotoxins --- blooms --- n/a

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