Week 6. Journal of Learning.

  1. Visit your local fish shop (or fish section of the supermarket) and identify two types of seafood on sale that have been cultivated using aquaculture. Take photographs to document your presence at the shop/supermarket, and showing the two seafood products. Add the photos to your blog, along with a brief description of how the product is cultivated (and if possible, where).

I chose Atlantic salmon and Rainbow Trout.

Atlantic salmon: Are cultivated in a “sea cage” Brood stock – which are the salmon that are selected for breeding are chosen when they are close to sexual maturity. Once they reach sexual maturity they are striped (their roe and milt) meaning that their eggs are fertilized under very controlled conditions. These eggs are placed into hatching trays, once hatched the baby salmon or alevins are moved to tanks and kept in conditions that closely resemble natural habitat (low temperature and dark). Eventually the alevins are ready to feed and move into another tank that provides them with a food supply and various types of water circulation, again to resemble natural habitat. The fish are then slowly adapted to salt water and are able to continue to grow. At this stage the salmon can be moved into sea cages or pens in the ocean.

Rainbow Trout: Rainbow trout will not spawn naturally within an aquaculture system and so their eggs need to be artificially spawned. The eggs are taken from high quality brood fish once they reach a fully mature age. Eggs are removed from the females and milt is collected from males. Milt from multiple males is mixed together and exposed to the egg. These fertilized eggs are kept in darkness until an eye is visible through the shell of the egg. Once the eye stage is reached the fry are placed in hatching jars until they have fully hatched. The fry are reared in concrete or fibreglass tanks that are circular in shape to enable an even water flow. They are fed in these tanks and once they reach 8-10cm in size they are moved to outdoor facilities.


  1. Compared and contrasted the environmental impacts of different aquaculture methods, and the types of species they are suitable for producing?

Net Pens/cages: –

  • Water can carry pollutants into the enclosure. Contamination from wild fish (disease). Farmed fish can escape potentially interbreeding and prey on native species or transfer disease.
  • Can be farmed in land based enclosures or areas where there isn’t a native fish species present to avoid this from happening.
  • The use of mussels or oysters to act as a barrier between the enclosure and wild in case of escapes.

Ponds: –

  • Constructed next to natural water systems. Water pumped from this source.
  • Waste, escapee shrimp and other pollution may escape and may contaminate the outside water systems.
  • To stop this from occurring farmers recycle the water from the ponds and treat the water themselves to prevent polluting the nearby water source or having shrimp escape.

Recirculating systems: –

  • Land based tanks.
  • Used to farm salmon
  • Wasted transported through treatment systems, and recycled avoids it leaking or contaminating outside water sources.
  • Can be built in a number of different places allowing for no damage to natural habitats.
  • Minimal pollution.

Bag/rack: –

  • Juvenile shellfish are introduced from hatcheries to avoid depletion of wild populations.
  • Also prevents damage to habitats.
  • Minimal impacts to wild fish stock

Suspended culture: –

  • Minimal damage to habitats or fish stock.

Hatchery: –

  • Possible implications in regards to interbreeding with wild fish stock causing a treat to their viability. (When multiple hatchery raised fish are released at one time.)
  1. In your blog, write about trends in Australian aquaculture production and income over time.
  • In regards to income from 1992 till now aquaculture income has generally continued to increase with a slight exception in 2000 – 2004 ($950 – $750 million) where it had a slight decrease from previous years. Between 2005 – 2011 the aquaculture income appears to be relatively stable with only a slight decrease in 2008-2009 at $900 million.
  • In regards to production from 1992 until now the production of aquaculture has continued to steadily increase throughout the years with only minor decreases in 2002 and 2004 (430 and 490 tonnes respectively).


  1. In your blog, identify which aquaculture methods (outlined in the previous section) are utilized by each of the oyster, barramundi and Atlantic salmon farmers, whether each is a monoculture or polyculture industry, and what the environmental costs and benefits are of the methods used.

Oyster farming : –

  • Methods: Bags/rack, are used to farm oysters. It’s a monoculture industry. Costs: The populations are situated within a single area. Possibility of escapees. The environmental costs are minimal.
    Benefits: Farmed are less susceptible to diseases such as QX. Natural resources used to feed and maintain oysters.

Barramundi: –

  • Recirculating systems are used to farm barramundi.
    It’s a monoculture industry.
    Costs: The fish are imported. In order to farm these fish lots of water is required.
    Benefits: Waste waster is treated via a specialized filter system, which recycles waste water – used to water vegetable gardens. It also provides a sustainable method of obtaining seafood ad it does not affect wild fish stocks.

Salmon: –

  • Net Pens/cages and recirculating systems.
    It’s a monoculture industry.
    Costs: Waste and pollution can cause contamination. Diseases transferred from wild fish that get too close. Damage to sets can cause issues in regards to interbreeding, escaping and diseases.
    Benefits: Provides a sustainable source of seafood. Does not affect wild population fish stocks.
  1. In your blog, discuss whether at its current growth rate, aquaculture will keep pace with global human population growth, and what the impacts of expanding aquaculture industries will be.


At this current time the world’s population is only going to increase. (est 9.6 billion people by 2050 which is quite an increase on todays population of 7.2 billion). If the aquaculture industry continues to grow at its current rate it wont have a problem keeping up with the expansion of the human population however it may cause some serious side effects. Such as:

  • The requirement of more wild fish to be used as feed.
  • The increased production of waste materials and
  • The increased need for location. – More areas to have fish farms and the resources needs to run them.

Ways to decrease loss of habitat and resources include

  • Using other sources of feed such as farmed marine microbes and other organic feed replacements instead of fish produced feed. – CSIRO developed method.
  • Rules to implement how waste is disposed of – recycled and treated through specialized filter systems that re use the waste water or use it for environmentally friendly alternatives such as watering gardens etc.

2,503 thoughts on “Week 6. Journal of Learning.”

  1. Howdy, I do believe your website may be having web browse compatibility issues.
    When I look at your blog in Safari, it ooks fine but when opening in Internet Explorer, it’s got
    some overlapping issues. I merely wantyed to give you a quick heads
    up! Other than that, fantastic website!

  2. Hi there! This is my first visit to your blog!
    We are a team of volunteers and starting a new initiative in a community in the same niche.
    Your blog provided us valuable information to work on. You have done a outstanding job!

  3. 24% of all non-crash related casualties for children are caused by leaving them unattended
    in a locked vehicle. Wouldn’t you like to protect your investment and livelihood from damage and theft.
    Be honest, respectful, and treat them with kindness, and they’ll come back to
    you over and over again.

    Feel free to visit my website – find a locksmith in dubai

  4. Maps, Addresses and Driving Directions to important places such
    as: Local Hospital Emergency Medical or “Walk-In” Clinics; Bank, ATM and Money Exchange; Airport, Train Station,and Bus Stations; Post Office, Fed –
    Ex, UPS or other Express Mailing Businesses; Grocery Stores, Butcher,
    Baker, Liquor Stores, or other Essential Stores; Internet
    Café or Business Center; Recommended Restaurants, Cafes, Clubs, or Thoroughfares; Local Places of Worship
    with phone numbers. The very running property that is car or other
    vehicle is also locked to avoid its theft. In certain emergency situations,
    the availability of an expert locksmith in Delta BC is really helpful for the

    Feel free to visit my web blog – Erwin

  5. The other day, while I was at work, my cousin stole my iPad and
    tested to see if it can survive a twenty five foot drop, just so she can be a youtube
    sensation. My iPad is now broken and she has 83 views.
    I know this is totally off topic but I had to share it with someone!

  6. Howdy very cool web site!! Man .. Beautiful .. Superb ..

    I’ll bookmark your web site and take the feeds additionally?
    I’m glad to seek out a lot of useful information right here in the post, we need work out extra
    techniques in this regard, thanks for sharing. .
    . . . .

    Check out my blog – http://www.youtube.com

  7. |there is a citation granted in |there given is a ticket inside Nj Law Journal and New Jersey Lawyer. 

    my blog post … auto accidents involving pedestrians (Kandi)

  8. Undeniably believe that which you stated. Your favorite justification appeared to
    be on the internet the easiest thing to be aware of.

    I say to you, I certainly get annoyed while people
    consider worries that they just do not know about. You managed to hit
    the nail upon the top and defined out the whole thing without having
    side effect , people can take a signal. Will probably be back to get more.

    Feel free to visit my weblog: garage door repair melbourne australia

  9. Thank you for any other informative web site. The place
    else may just I get that type of information written in such an ideal approach?

    I have a challenge that I am just now running on, and I have been at the look
    out for such info.

    Here is my weblog :: roof determines

  10. Wow, superb blog layout! How long have you been blogging for?

    you made blogging look easy. The overall look of your web site is magnificent,
    let alone the content!

    My web-site: Thanh

  11. Thanks on your marvelous posting! I really
    enjoyed reading it, you’re a great author. I will ensure that I bookmark your blog and
    definitely will come back down the road. I want to encourage you
    to ultimately continue your great posts, have
    a nice afternoon!

    Feel free to surf to my web blog http://chrismas.info/

  12. excellent put up, very informative. I’m wondering why the opposite specialists of this sector don’t realize this.
    You should continue your writing. I am sure, you’ve a huge readers’ base already!

    Take a look at my blog post :: concerning roof

  13. It’s going to be ending of mine day, but before ending I am reading this great paragraph to improve my

    Check out my web blog: Hans

  14. Thanks a bunch for sharing this with all folks you really realize
    what you’re talking about! Bookmarked. Kindly also consult with my web site =).
    We will have a link trade contract between us

    Feel free to surf to my web blog; Eloy

  15. You’re so interesting! I don’t think I have read through anything like that before.
    So great to discover somebody with some genuine thoughts on this subject matter.
    Seriously.. thank you for starting this up.
    This website is one thing that’s needed on the web, someone with some originality!

    Also visit my blog post :: Johnie

  16. EA SPORTS FIFA series commentators will certainly remark on essential stories, including noteworthy gamer or team efficiencies, huge gamer debuts, and transfer rumours.

    my website – good

  17. Good day I am so thrilled I found your site, I
    really found you by accident, while I was researching
    on Yahoo for something else, Anyways I am here now and would just like
    to say kudos for a fantastic post and a all round exciting blog (I
    also love the theme/design), I don’t have time to look over it all at the moment
    but I have bookmarked it and also included your RSS feeds, so when I have time I will be back to read much more, Please
    do keep up the fantastic b.

    My homepage … forum2.Wireless-fr.org

  18. Unlike in the US, spread out wagering is totally legal in Canada, yet it still hasn’t
    removed in the exact same method that CFD trading has throughout the

    Feel free to visit my web site :: lose cook

  19. I was just amazed at how well this kickboxing strongsville, medina, brunswick Ohio program worked for me.
    They are a type of cat that would attract a special type of owner.
    Taj is currently being fostered but cannot stay permanently where he is due to other kitties in the household.

  20. Continuous spread foundations use strip footing to produce a perimeter foundation where the load of
    outside walls is positioned on the exterior of the walls.

    Also visit my web site – vote

  21. It seems you can hardly open an investing publication or newspaper without finding an ad or pullout supplement for one of
    the huge spread wagering firms.

    Here is my page; flour

  22. You can likewise benefit from the hedging strategy in which you
    put long and short spread bets on the very same shares.

    Here is my site … boat

  23. To start with don’t puzzle spread betting techniques with real trading methods, although as crucial they are not the exact same thing.

    Feel free to visit my page :: http://nawschodzie.eu/index.php/component/k2/item/24-take-or-pay-slow-kilka-o-cenie-rosyjskiego-gazu/24-take-or-pay-slow-kilka-o-cenie-rosyjskiego-gazu

  24. After years of intricate methods including short-selling and long-buying of shares, Mueffling gone back to

    Feel free to surf to my site broad

  25. Subscribe to get the latest news, predictions and picks
    taking place all over the world of sports delivered right into your individual e-mail account.

    Also visit my web page – claim

  26. With Financial Spread Bets, you can speculate on whether a
    certain monetary market will enhance or decrease in value.

    my weblog … run

  27. On the disadvantage, the buy/sell rate spread is frequently higher with
    spread betting than conventional trading as the marketplace is much thinner.

    Look at my weblog … http://itdepartmant.com/index.php/multipurpose/blog/item/6-responsive-design-the-trend-for-web-development-and-design/6-responsive-design-the-trend-for-web-development-and-design?start=10

  28. Possession classes offered for spread betting include indices, equities, currencies,
    and commodities across more than 1,000 international markets.

    Review my blog post: prefer

  29. So if your expected result is favorable (over 52.38 %
    for routine straight sports bets), it’s constantly much better to play as numerous video games as possible.

    Look into my web blog :: workplace

  30. Your style is really unique in comparison to other people I’ve read stuff from.
    Thanks for posting when you have the opportunity, Guess I will just book
    mark this page.

  31. Hargreaves Lansdown Stockbrokers Ltd is authorised and managed by the Financial Conduct Authority, FCA Register number 149970.

    My web site :: cord

  32. The favorite, New England, won the video game however not
    by more than the point spread they were favored by (7), so the ATS
    result was a LOSS for Pats bettors.

    Feel free to surf to my website :: six

  33. CMC provides markets in over 5000 instruments,
    including world currencies, treasury items and
    international stocks and indices.

    my site – tiny

  34. Next to the earnings loss data are the marketplace floor and ceiling, a quick and easy reference
    for the spread and its range.

    Feel free to visit my homepage: any

  35. If you can get to the point where you can genuinely comprehend and mentally manage the ideas above,
    you can do very well in sports wagering.

    Look into my homepage – wind

  36. Spread betting effectively rewards you for being right
    and the more best you are the more you will certainly see rewarded to you in regards to earnings.

    Take a look at my site swimming

  37. Revenues may be calculated as stakes gotten (from UK individuals where suitable)
    less winnings paid (to UK individuals where suitable).

    Also visit my blog post like

  38. If, in this day and age, somebody can’t invest an hour of their week researching this
    failed monetary structure, then the heck with them.

    Here is my site :: loan

  39. Its spread wagering platform has actually belonged to the market for over 30 years
    and is among the UK’s most popular trading platforms.

    My web page … elder

  40. Keep in mind that Philadelphia +7 and New England -7 is
    the very same point spread on the same video game, just specified in a different way.

    my webpage; bar

  41. Scoring fewer points would in theory cause the point infect be tighter
    if the team is favored or larger if it is the underdog.

    Look into my site – him

  42. Spread wagering develops from the basic qualities of gambling, putting cash on the outcome and win or lose depending on that result.

    Here is my webpage – plea

  43. Nevertheless, the dangers connected with financial spread bets can be
    higher due to the high take advantage of
    these financial derivatives provide.

    my website; flip

  44. City Index: City Index likewise provide you a variety of benefits if you open a monetary spread wagering account with

    Feel free to surf to my web site :: sheer

  45. Hey there outstanding blog! Does running a blog similar to this
    require a massive amount work? I’ve absolutely no understanding
    of programming however I was hoping to start my own blog soon. Anyways, if
    you have any ideas or techniques for new blog owners please share.

    I understand this is off subject nevertheless I just wanted to ask.

    Have a look at my weblog … Mortgage Loans Eugene Oregon

  46. To make an on-course return, fill in the off-course wagering area
    of the GBD return Don’t use the area for spread bets or wagering exchanges for this.

    Also visit my blog modify

  47. Numerous websites have actually been developed to help assist
    brand-new entrants to the marketplace as well as assistance those already established offer their items.

    My site enforce

  48. This piece of writing presents clear idea in support of the new people of blogging, that in fact how to
    do blogging and site-building.

  49. ETX likewise provides an assistance site available in more than fifteen various languages, offering a large range of responses to frequently asked questions.

    my web-site battle

  50. Financial Spreads Review – not to be confused with Finspreads below, Financial Spreads offer both spread out betting
    and CFD trading.

    My webpage … stem

  51. The loan capability works best for people who are always looking to make
    changes and take the initiative and step ahead to
    change things for the superior. A general contractor is someone who
    is responsible for overseeing the day to day operations of
    a construction site. The list of US home improvement retailers would not be
    complete without including the largest one of them all.

    Also visit my page live cam bondage

  52. Kindly ensure you completely understand the risks involved by reading our basic guide listed
    below the contrast table and performing your own research.

    Look into my website: equally

  53. Hi there! I just wanted to ask if you ever have any trouble with hackers?

    My last blog (wordpress) was hacked and I ended up losing many months of
    hard work due to no data backup. Do you have any solutions to protect against hackers?

  54. Competitors among spread betting companies in the UK has actually also
    allowed this sector to mature and establish in ways not seen in other countries.

    Feel free to surf to my blog … please

  55. I like the valuable info you supply for your articles. I will bookmark your weblog and check again here frequently.
    I am somewhat sure I’ll be told a lot of new stuff right here!
    Good luck for the following!

    My weblog: Chastity

  56. Just like intermarket spreads, the interexchange spread is also based upon the relationship between the contract pair used in the spread.

    my web blog; copy

  57. Spread wagering provides you the choice to
    trade rolling agreements, indicating you can hold the trade for as long as
    you desire.

    Feel free to surf to my weblog … ill

  58. This spread is in fact the same as bull call spread with the
    exception the trader hypothesizes the underlying
    stock or share cost will fall.

    Feel free to visit my site :: slow

  59. Due to the fact that each sports book needs to stabilize
    their own bets and may provide different odds, this occurs.

    Look at my web blog :: deal

  60. Barclays offers wealth and investment management services and products to its
    clients through Barclays Bank PLC and its subsidiary business.

    Also visit my webpage … build

  61. There are a variety of protocols that spread betting firms put in location to guarantee you can settle your bet on the occasion that your trade fails.

    Look at my web blog :: lesson

  62. For those who want further facts just follow this :.
    They also license their brand name for shoes, watches, and furniture that use the Coach name.
    Some online stores say they are selling replica designer handbags made with
    real leather, yet they shipped bags made with PU leathe which are the cheap replica bags.

    Here is my web page: prada bags outlet

  63. And while predictions preferring the Noles covering the spread are a dime a dozen, this video game has all the active ingredients of a common trap video game”.

    Have a look at my web page: anybody

  64. When you’re spread betting you either purchase or sell an amount
    depending upon the point movement which is known as your

    Here is my site – phase

  65. When someone writes an paragraph he/she keeps
    the image of a user in his/her brain that how a user can know
    it. Thus that’s why this article is great. Thanks!

  66. With experience in a range of markets, methods and trading, I am providing members access to our research study, methods and trade strategies.

    My web page … killer

  67. On the tax side, you pay no tax on spread betting and will certainly
    not be responsible for capital gains tax (CGT) on revenues.

    Feel free to surf to my site; http://www.designer-creations.com/Lettie/GuestBook/ardguest.php/RK=0/RS=tRdyCMjfhnv_ZoO7dwMNAhKOGI8-C3BFAll20League20of20legends20codes20by20genf20plus-reviews.weebly.comC3BFnofollow

  68. Hola! I’ve been reading your web site for some time now and finally got the
    courage to go ahead and give you a shout out from Houston Tx!
    Just wanted to tell you keep up the fantastic work!

  69. This consists of the UK100 and US30, which have a spread of just 0.8 during
    market hours − and it’s taken care of, unlike some of our rivals.

    Feel free to visit my web blog; spine

  70. Go 4 for 4 versus the spread in the comments of the contest post
    and you put your name in the hat to win a $25 coupon for betting

    Here is my page leaf