Spawning Articles
-
Storytelling is the challenge, but it can also be the solution
America loves farmers, and the data proves it. The Industry of Farming & Agriculture has the highest favorability ratings of all U.S. industries, and farming is regularly ranked one of the most trustworthy professions… so why is there still a major disconnect between food producers and the end consumer? There’s a feeling of “us vs. them” on both sides, and it ...
By DP Techlink
-
Recording Dissolved Oxygen Levels at Spawning Site of Invasive Trout Species
The introduction of non-native fish species in lakes has led to the disruption of aquatic ecosystems and the decline or elimination of native species of fish. Yellowstone Lake in Wyoming is suffering from the invasion of Lake Trout (Salvelinus namaycush) which has caused a steep decline in the population and health of the native Yellowstone Cutthroat Trout (Oncorhynchus clarkii bouvieri). A ...
-
The White Abalone Restoration Consortium - Case Study
Project Details PRODUCT(S): miniDOT Logger APPLICATION: Salt Water PARAMETER: Dissolved Oxygen, Temperature LOCATION: Bodega Bay, California ORGANIZATION: White Abalone Restoration Consortium RECOGNITION: Katie Sowul, UC Davis Case Study Description Researchers from the University of California, Davis (UCD), the National Oceanographic and Atmospheric Administration, the California ...
-
Stocking Tilapia / Aquaculture
Overview: To get a good crop of marketable fish it’s necessary to stock the pond with the correct number of fingerlings. Stocking too few fish may result in fast growth and large fish but this isn’t an economical use of the pond. However, stocking too many fish will result in slow growth and a large number of very small fish. Tilapia For all-male (monosex) culture of tilapia for ...
By Fishward
-
Different Kinds of Freshwater Angelfishes (4)
16.Zebra AngelfishScientific name: Pterophyllum scalare varEnglish name: Zebra angelfishThe zebra angelfish is characterized by a distinct stripe distribution on its body surface, like the black and white stripes on the zebra, which is one of the most attractive angelfish.17.Tri-color AngelfishScientific name: Pterophyllum scalare varEnglish name: Tri-color angelfishThis is one of the most ...
-
Are You Compliant With Fish Food Packaging Label Guidelines?
When you're packaging fish food, you should always consider whether the labeling guidelines you are using are compliant with federal and state laws. Depending on the quantity you're selling, this can be anything from the usual paper labels added to the bottom of a 50# feed sack, to specific requirements that the label fill a certain percentage of the container's surface. These regulations also ...
By BESTMIX
-
Mushroom Learning Center Kolhapur
Now learn mushroom growing with Mushroom learning Center, Kolhapur We provide oyster mushroom training and Mushroom seeds as well. Mushroom Seeds are available at cheap rates 100 rs/Kg. Collect seeds in person or by parcel. All India Shipping. We also supply fresh mushrooms and dry mushrooms in India and International exports. Mushroom #Trainings conducted every two weeks. Mushroom Learning ...
-
Prompt assessment of the potential spawning areas of Sevan trout in the South-West part of Lake Sevan
Sevan trout is an endemic fish species, registered in the Red Data Book of Armenian Animals as a ‘Critically Endangered’ species (IUCN category: CR A2cd) and is one of the most valuable fish of the Armenian ichthyofauna. For the purpose of preservation of this endangered fish species, rivers in the South-West part of Lake Sevan have been studied and their potential for spawning has been ...
-
How a new way of thinking about soil sparked a national movement in agriculture
For three weeks every month, Ray Archuleta captivates audiences with a few handfuls of soil. He begins with two clumps, dropping them into water. The soil from a farm where the soil isn’t tilled holds together, while the tilled soil immediately disperses, indicating poor soil structure. Next, volunteers from the audience — mostly farmers and ranchers — pour water over a soil ...
By Ensia
-
Improving management support tools for reintroducing bivalve species [Eastern Oyster (Crassostrea virginica Gmelin)] in urban estuaries
Successful reintroduction of ‘ecologically extinct’ bivalve species into anthropogenically impaired urban estuaries is problematic when employing existing management tools used in estuaries where bivalves are present (GIS‐based restoration models, expanding existing shellfish beds, placement of shell substrate, physical oceanographic parameters). A significant management challenge is ...
-
New trends in innovation strategy at Chinese universities in Hong Kong and Shenzhen
This paper assesses collaborative innovation activity undertaken by universities in Hong Kong and Shenzhen, China. The theoretical background references the systems of innovation approach and the triple helix model of university–industry–government interaction. The paper reviews Hong Kong's tertiary education system and the role of science and technology development in Shenzhen and Mainland ...
-
Nechako White Sturgeon Conservation Centre - Case Study
The Freshwater Fisheries Society of BC developed the Nechako White Sturgeon Conservation Centre to try to prevent extinction of this endangered species. Wild caught brood fish are held in the facility until spawning is complete. Controlled family groupings of young sturgeon are hatched in McDonald jars and reared for one year, first in 0.5 m3 and 1.5m3 combi tanks, then 8 m3 tanks before release. ...
By PR Aqua, ULC
-
Fathead Minnow response to broad‐range exposure of β‐sitosterol concentrations during life cycle testing
β‐sitosterol concentration in pulp and paper mill effluents is typically greater than other phytosterols, and has been shown to cause a variety of effects in fish. We exposed Fathead Minnow (Pimephales promelas) to low (22 ± 0.93 µg/L), medium‐low (70 ± 2.1µg/L), medium‐high (237 ± 5.5 µg/L), and high (745 ± 16.2 µg/L) concentrations of β‐sitosterol; and a negative (water), positive (ethynyl ...
-
Effect of different water temperatures and pH on the growth, specific growth rate and feed conversion efficiency of spawn to fry of common carp, Cyprinus carpio
A study was conducted on Cyprinus carpio spawn (0.002±0.00 g) to determine optimum water temperature and pH. For this purpose, four water pH (5.5, 6.5, 7.5 and 8.5) were selected and each one exposed to three water temperatures (26, 28 and 30°C) for 91 days. The maximum weight gain (3.279±0.84 g), feed conversion efficiency (FCE) (86.49±0.64%) and survival (97±3.85%) were recorded with pH 7.5 at ...
-
Mangrove coasts: A muddy story
In my previous blog, I have tried to explain the importance of mangrove mud coasts. Of course, these coasts are beautiful, exotic environments, with rare species, such as the mud skipper and numerous crabs, as well as rare birds. For some, their beauty alone would be sufficient reason to protect these ecosystems. For mankind, it is their so-called ecosystem services that should urge their ...
-
Old and new knowledge combine to protect Fiji`s fish
Efforts to protect precious marine biodiversity by combining science and local knowledge are difficult but can work, reports Naomi Antony. Along the coastline of Fiji, threatened fishing communities have been combining the ancient and the new in their fight to conserve precious marine resources. Together with traditions remembered from centuries ago and community approaches to marine ...
By SciDev.Net
-
Modelling the impacts of reservoir operations on the downstream riparian vegetation and fish habitats in the Lijiang River
River flow regulations have great impact on the downstream aquatic ecosystem. It is important to investigate the response of target species to the changes in hydrological regimes so that we can explore possible remediation measures. Ecohydraulics models that integrate hydrodynamics processes and ecological processes have been shown to be efficient in achieving these objectives. This study ...
-
Fish farming at Kontiolahti
At Kontiolahti Fish farm the cuttings of salmon, trout and rainbow trout are cultivated to juveniles. Spawn is hatched and the juveniles of 0+ age-class are farmed inside. The older juveniles are farmed outside in surface basins. The water flow is 100-170 l/s depending on the season. Situation in the beginning The oxygen rate of the becoming water to the farm was not enough time to time, only ...
By W-Rix Ltd
-
When population growth and resource availability collide
As land and water become scarce, competition for these vital resources intensifies within societies, particularly between the wealthy and those who are poor and dispossessed. The shrinkage of life-supporting resources per person that comes with population growth is threatening to drop the living standards of millions of people below the survival level, leading to potentially unmanageable social ...
-
Expanding marine protected areas to restore fisheries
After World War II, accelerating population growth and steadily rising incomes drove the demand for seafood upward at a record pace. At the same time, advances in fishing technologies, including huge refrigerated processing ships that enabled trawlers to exploit distant oceans, enabled fishers to respond to the growing world demand. In response, the oceanic fish catch climbed from 19 million tons ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you