Browsing Biology by Title
Now showing items 223-228 of 228
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Water quality measurements on Williams Lake and Colpitt Lake (Halifax, N.S.) Dec 7-13, 2015 with reference to possible impacts of road salt
(Williams Lake Conservation Company, 2016-01-06)Concerns have been expressed by the Williams Lake Conservation Company (WLCC) about possible effects of renewed salting of roads close to Williams Lake on water quality of the lake. Such salting was replaced by sand and ... -
Weaning mass affects changes in body composition and food intake in harbour seal pups during the first month of independence
(2003-05)In phocid seals, the transition to nutritional independence is abrupt, with females abandoning their offspring after weaning and returning to sea. We hypothesized that body size at weaning may play an important role in ... -
What is a fish stock assessment? Is it a sound method? Can it be used to manage a commercial fishery?
(2015-09)Under Karl Popper's non-inductive theory of method arguments are never carried from data to advice as in a fish stock assessment. That is: a distinction or 'demarcation' has to be made between (i) a Lamarckian-like inductive ... -
Why an ecosystem approach is the wrong paradigm for the next stage of fisheries management
(2006-09-13)Scientists from the Department of Fisheries and Oceans (DFO) manage groundfish stocks by collecting biomass measurements that are used to provide scientific advice on catch limits. Clearly, if the data is uncertain or ... -
Why do fish stocks collapse? The example of cod in Atlantic Canada
(1997-02)In 1993, six Canadian populations of Atlantic cod (Gadus morhua) had collapsed to the point where a moratorium was declared on fishing. It has been argued that the collapses were caused by poor recruitment of cod to the ...