This document summarizes a study on marine fish eggs and larvae from the East coast of South Africa. Samples were collected over several years starting in 1985 to assess fish diversity and spawning patterns. Eggs and larvae were identified using physical features and DNA barcoding. Over 2100 larvae have been barcoded representing 280 known species, with 10 being new records. Location of spawning was estimated by collecting offshore and inshore. Three species were found to be the most prolific spawners. Large rainfall events increased egg numbers likely due to increased nutrients.
National Wildlife Federation's Dr. Doug Inkley testified before the Virginia Commission on Climate Change yesterday, detailing the effects of warming temperatures and rising sea levels on fish and wildlife. Virginia's trout and duck populations are particularly at risk. And in the Chesapeake Bay, climate change is just one of many threats to oysters and crabs.
This presentation summarizes the problems with conventional fish farming approaches, and uses the precautionary principle as a framework to handle the issue.
UNITED AQUAFARM VENTURES INCORPORATED is a corporation duly registered with the Securities and Exchange Commission. The main line of business of this company is aquaculture mainly engaged in fish trading, food processing, buying and leasing areas for fish pond and fish cage construction. It also conducts seminars related to fish farming and aquaculture.
National Wildlife Federation's Dr. Doug Inkley testified before the Virginia Commission on Climate Change yesterday, detailing the effects of warming temperatures and rising sea levels on fish and wildlife. Virginia's trout and duck populations are particularly at risk. And in the Chesapeake Bay, climate change is just one of many threats to oysters and crabs.
This presentation summarizes the problems with conventional fish farming approaches, and uses the precautionary principle as a framework to handle the issue.
UNITED AQUAFARM VENTURES INCORPORATED is a corporation duly registered with the Securities and Exchange Commission. The main line of business of this company is aquaculture mainly engaged in fish trading, food processing, buying and leasing areas for fish pond and fish cage construction. It also conducts seminars related to fish farming and aquaculture.
Planning for Marine Cage Fish Farming following Coastal Zone Management Program
- Technological Options
Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Aquaculture Planning and Management, In the University of Hull
This presentation gives a quick account of the activities of the Fisheries department in inland fisheries and aquaculture in Tamil Nadu. It also talks about the development of fish culture in community ponds& tanks and the need for reforms in community tank management.
Prospect & Overview of Aquaculture in Malaysia [ English ]Amoeba Aquatech
Prospect & Overview of Aquaculture in Malaysia - Power Point Slide in ENGLISH.
FREE seminar - Freshwater Aquaculture
Date : 28/10/2015 (Wed)
Time : 7.00pm
Venue : The KL & Selangor Chinese Assembly Hall, 1st Floor Auditorium
Language : 粤语 Cantonese
Topic :
1. Why Aquaculture ?
- Aquaculture
- Mariculture
- Food Agriculture Organization
2. Current Status of Aquaculture in Malaysia
- Brief History
- Malaysia Aquaculture Production
- Role of Aqua
- Zoning – AIZ (Aquaculture Industrial Zones)
3. Aquaculture Economic
4. FAQ
Speaker Bio :
Mr. Thomas Wong, an aquaculture specialist is currently the Amoeba Aquatech aquaculture farming & breeding consultant.
Has involved intensively in freshwater and brackish water Prawn fry Production, Freshwater/ Marine fish breeding and farm management more than 20 years.
His specialty includes in breeding fry of Malaysian high value exotic fish species consistently in large commercial scale and has successfully cultivated fish species like Kerai, White Sultan fish, Tengalan, Temoleh & etc. And production of Malayan Giant Freshwater Prawns commercially with remarkable reputation.
He also been successfully developed technique in production of pelleted fed Marble Goby fry to reduce mortality rate and enhance production yield.
-------------------------------------
If you have any enquiries,
kindly contact us at 603-6262 8477.
Applications of Biotechnologies in Ex Situ Conservation, Characterization and...apaari
Applications of Biotechnologies in Ex Situ Conservation, Characterization and Utilization of Fish Genetic Resources by J.K. Jena & K.K. Lal, Indian Council of Agricultural Research, New Delhi, India, Presented during the Regional Workshop on Underutilized Fish and Marine Genetic Resources and their Amelioration, 10-12 July 2019, Location: Colombo, Sri Lanka
Planning for Marine Cage Fish Farming following Coastal Zone Management Program
- Technological Options
Dissertation submitted in partial fulfillment of the requirements for the Degree of Master of Science in Aquaculture Planning and Management, In the University of Hull
This presentation gives a quick account of the activities of the Fisheries department in inland fisheries and aquaculture in Tamil Nadu. It also talks about the development of fish culture in community ponds& tanks and the need for reforms in community tank management.
Prospect & Overview of Aquaculture in Malaysia [ English ]Amoeba Aquatech
Prospect & Overview of Aquaculture in Malaysia - Power Point Slide in ENGLISH.
FREE seminar - Freshwater Aquaculture
Date : 28/10/2015 (Wed)
Time : 7.00pm
Venue : The KL & Selangor Chinese Assembly Hall, 1st Floor Auditorium
Language : 粤语 Cantonese
Topic :
1. Why Aquaculture ?
- Aquaculture
- Mariculture
- Food Agriculture Organization
2. Current Status of Aquaculture in Malaysia
- Brief History
- Malaysia Aquaculture Production
- Role of Aqua
- Zoning – AIZ (Aquaculture Industrial Zones)
3. Aquaculture Economic
4. FAQ
Speaker Bio :
Mr. Thomas Wong, an aquaculture specialist is currently the Amoeba Aquatech aquaculture farming & breeding consultant.
Has involved intensively in freshwater and brackish water Prawn fry Production, Freshwater/ Marine fish breeding and farm management more than 20 years.
His specialty includes in breeding fry of Malaysian high value exotic fish species consistently in large commercial scale and has successfully cultivated fish species like Kerai, White Sultan fish, Tengalan, Temoleh & etc. And production of Malayan Giant Freshwater Prawns commercially with remarkable reputation.
He also been successfully developed technique in production of pelleted fed Marble Goby fry to reduce mortality rate and enhance production yield.
-------------------------------------
If you have any enquiries,
kindly contact us at 603-6262 8477.
Applications of Biotechnologies in Ex Situ Conservation, Characterization and...apaari
Applications of Biotechnologies in Ex Situ Conservation, Characterization and Utilization of Fish Genetic Resources by J.K. Jena & K.K. Lal, Indian Council of Agricultural Research, New Delhi, India, Presented during the Regional Workshop on Underutilized Fish and Marine Genetic Resources and their Amelioration, 10-12 July 2019, Location: Colombo, Sri Lanka
Project update on establishing a nonnative predator research and pilot fish r...FISHBIO
Federal legislation (Water Infrastructure Improvements for the Nation Act, 2016) requires the Oakdale and South San Joaquin Irrigation Districts and NOAA Fisheries to jointly establish a multi-year research program in the Stanislaus River to investigate whether predator removals are an effective strategy to improve the survival of juvenile salmonids. Initial project goals included efforts to: (1) gather data on the abundance, composition, and distribution of both native and nonnative fish predators in the Stanislaus River; (2) gather age composition and diet information from fish predators; and, (3) implement and assess removals of piscivorous fishes using a Before-After-Control-Impact study design. The sampling design allows for information to be gathered on both temporal and spatial aspects of predation in the Stanislaus River with randomly selected sampling locations revisited multiple times. Data will be analyzed using a robust design framework to account for the ability of tagged predators to move into and out of the sampled locations (i.e., an open population). Data from the study can provide insight on how predation risk (e.g., the number of Chinook salmon consumed by predators) may change through time and space as well as how predator populations may change throughout the study period.
ABSTRACT
THE 4R GENOME DUPLICATION IN SALMONINE FISHES:
INSIGHTS FROM CONSERVED NON-CODING ELEMENTS
Anibal H. Castillo Co-Advisors:
University of Guelph, 2008 Professors Dr. Moira M. Ferguson
Dr. Roy G. Danzmann
Gene and genome duplications are important processes in evolution. Salmonids are ideal animal model systems in which to study these processes, as they originated from a tetraploid ancestor. Conserved non-coding elements (CNEs) are of interest because of their highly conserved DNA consensus motifs spanning lineages as diverse and divergent as humans and fish. The main goal of this study is to test CNEs as a tool to study genome duplications and to revisit the “4R” hypothesis and phylogeny of Salmonine fishes (Salmonidae) Salmo salar, Salvelinus alpinus and Oncorhynchus mykiss through the study of copy number and nucleotide variation in six pairs of CNEs. Allele numbers for most CNE sequence pairs are consistent with the 4R hypothesis, as is the symmetric phylogenetic topology shown by some CNE pairs; the estimated date of CNE duplication is consistent with the only reported range of 25-100Mya. However, the phylogenetic relationships within Salmoninae remain unresolved.
Fish biodiversity and food supply: Species numbers in the wild and exploited;...WorldFish
This presentation by Nicolas Bailly, Douglas Beare and John A.H Benzie was delivered as part of a workshop for the "Bay of Bengal Large Marine Ecosystem Network".
Dr. Darwin Reicks - Pre-screening of stud boars for low fertility: What are t...John Blue
Pre-screening of stud boars for low fertility: What are the options? - Dr. Darwin Reicks, Swine Vet Services, from the 2011 The Allen D. Leman Swine Conference, September 17-20, 2011, St Paul, MN, USA.
Rainbow Trout: Introduction and Importancemeemail377
Rainbow trout, Oncorhynchus mykiss, are colorful freshwater fish native to North America, renowned for their striking iridescent hues. Sporting a streamlined body and distinctive pink stripe along their sides, rainbow trout inhabit cold, clear streams and lakes. They are prized by anglers for their spirited fights and delicious flesh. Rainbow trout are opportunistic feeders, consuming insects, crustaceans, and small fish. They play crucial roles in freshwater ecosystems as both predators and prey, contributing to the balance of aquatic food webs.
[Day 2] Center Presentation: Bioversity and CIATcsi2009
Presented by Andy Jarvis (Bioversity), Andy Farrow (CIAT), and Glenn Hyman (CIAT) at the
CGIAR-CSI Annual Meeting 2009: Mapping Our Future. March 31 - April 4, 2009, ILRI Campus, Nairobi, Kenya
Similar to Dirk Steinke - Vertebrates Plenary (20)
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
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How to Create Map Views in the Odoo 17 ERPCeline George
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Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
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3. History
1985 - a major effluent pipeline was about to begin
discharging industrial effluent over a shallow
continental shelf area in Richards Bay
1985 - surface plankton samples were collected, over
several years, to assess the diversity of fish species
spawning in the area, and the intensity and seasonality
of spawning.
1986 – a second study in Park Rynie was started in
order to collect alive specimens.
1987 – cataloguing of eggs and hatched larvae started
2004 – DNA Barcoding was added to the procedure
(including sampling of adults for reference library)
4. Work flow
• By collecting both offshore (5km) and inshore (0.5km) a reasonable
assessment of location of spawning was obtained for all the common
eggs in the study area.
• A simple “key” based on the physical features of pelagic fish eggs,
was used to separate eggs into basic groups.
• eggs were hatched and both eggs and larvae were photographed.
• once larvae had fully pigmented eyes, they
were anaesthetised with MS222, prior to
fixing in 98% alcohol for DNA Barcoding.
• other larvae were reared to the point
where fin counts and juvenile features
aided in identification.
5. Work flow
• DNA extraction was done using standard protocols at the CCDB.
• A reduced elution volume was used.
• PCR used Fish Cocktail (Ivanova 2007).
• Sequences were queried against BOLD using its Identification
Engine (only 100% were considered).
• reared larvae of the same batch were fixed in formalin and serve as
„para-vouchers‟
6. Today
• some 2100 larvae have been barcoded since 2005
• the local adult reference library (assembled in parallel) contains
some 900 species
• some 1500 species of marine fishes from South Africa are barcoded
• 9000 fish species have been barcoded world-wide
7. Are we done?
40
35
Phylogenetic Diversity (PD)
30
25
20
• PD calculated using Conserve based on
15 NJ trees generated in MEGA 4.0
• Sample size progressively increased by 10
10 random sequences
5
0
0 500 1000 1500 2000
# barcodes
8. Results
• 1638 specimens (78%) could be identified using BOLD
• they represent 280 known species
• 10 of those are new records for South Africa
• the remaining 22% could not be matched to any barcode sequence
on BOLD or GenBank.
11. Trends
• large rainfall causing mud to be washed out from rivers
• the high nutrient load of such a deluge caused massive increase in egg
numbers
• three most prolific pelagic egg spawners: Sardinops sagax, Etrumeus
teres, and Scomber japonicus