11 Questions 143 Answers 0 Followers
Questions related from Björn Thrandur Björnsson
We currently working on wolffish larvae hatched from wild-caught eggs and at ca 180 dph we're still not sure to which species they belong. Hopefully, we'll see this later in the juvenile/adult...
26 August 2016 6,207 7 View
I'm interested in being able to estimate total body fat in trout and salmon, both through invasive and non-invasive methods. One possibility appears to be to use the Distell Fish Fat Meter, but...
06 April 2016 4,769 13 View
An interesting opinion piece has just been published in the journal Science arguing that we should retire the letter of reference. From reading the piece I'm astonished by the amount of reference...
05 February 2016 4,884 37 View
Fish have various ways of depositing fat as energy reserves. Some ("fatty") species have a lot of fat deposited in their muscle tissue whereas others ("lean") species may have large liver as their...
17 June 2014 4,254 5 View
Sustainability is a word constantly being used in describing various aquaculture systems, defining goals for aquaculture etc, but what does this really mean? Does it demand no environmental...
31 January 2014 3,289 36 View
Often, cortisol levels in fish are measured immunologically using antibodies with high (or non-defined) cross-reactivity with corticosterone. A few references (and I'm looking for more) indicate...
31 October 2013 5,639 4 View
In a recent discussion tread on open access, my attention was drawn to a recent paper in Nature (see link) outlining publication costs and the large profit margins that the publishing houses are...
10 June 2013 5,820 38 View
Not surprisingly, there are a lot of discussions ongoing under the GMO topic about genetically modified organisms, but most if not all the discussions on food production concern plants, not...
27 May 2013 7,869 18 View
Posilac is a slow-release, long-lasting formula of bovine growth hormone which I've used successfully in the past to study fundamental physiological, behavioral and ecological effects of GH and...
29 November 2012 5,089 8 View
Following the recent International Symposium on Fish Endocrinology in Buenos Aires, the question was raised within the international committee if a Society for Fish Endocrinology (SFE) should be...
07 October 2012 4,954 3 View
I've never seen good data on the energetic costs of producing fat vs lean fish, but to me it seems obvious that growing lean fish must result in a much better feed conversion efficiency.
15 September 2012 7,487 28 View
