Climate and fishing: Disentangling factors affecting growth in Scotian shelf haddock (Melanogrammus aeglefinus) ...
No abstracts are to be cited without prior reference to the author.Fish growth is affected by variations in a number of factors including climate (temperature) and size-selective fishing. The effects of these factors on resulting size-atage variation must be disentangled to allow for the development...
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| Format: | Conference Object |
| Language: | unknown |
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ASC 2009 - Theme session E
2024
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| Online Access: | https://dx.doi.org/10.17895/ices.pub.25070774 https://ices-library.figshare.com/articles/conference_contribution/Climate_and_fishing_Disentangling_factors_affecting_growth_in_Scotian_shelf_haddock_Melanogrammus_aeglefinus_/25070774 |
| Summary: | No abstracts are to be cited without prior reference to the author.Fish growth is affected by variations in a number of factors including climate (temperature) and size-selective fishing. The effects of these factors on resulting size-atage variation must be disentangled to allow for the development of successful management strategies. Of the factors impacting variation in growth, temperature is a controlling factor governing growth via reaction rates at the cellular (metabolic) level and the effects of temperature on size-at-age variation must be examined foremost. Disentangling effects of temperature on size-at-age requires a metric relevant to the integrated growth metric that is size-at-age. In previous work, we show this physiologically relevant metric is the growing degree-day (GDD, ºC d). Here we employ the GDD metric to quantify the influence of temperature variation on a 30-yr decline in length-at-age among mature, eastern Scotian Shelf (Northwest Atlantic Fisheries Organization statistical ... |
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