. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. INTRODUCTION 231 The species of fish were counted, and the important ones measured and sexed, and data on the stages of maturity at different lengths collected. Occasionally observations on scales, gonads, and pathological growths, and sexing of the less important species were possible. Provisional identifi- cations proved adequate for the subsequent accurate determination of almost all the specimens taken, in spite of the facts that it was only possible to preserve a small proportion of the cat
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. INTRODUCTION 231 The species of fish were counted, and the important ones measured and sexed, and data on the stages of maturity at different lengths collected. Occasionally observations on scales, gonads, and pathological growths, and sexing of the less important species were possible. Provisional identifi- cations proved adequate for the subsequent accurate determination of almost all the specimens taken, in spite of the facts that it was only possible to preserve a small proportion of the catch, and that some. Fig. ic. Third trawling survey; station positions October to April 1931-2. Nototheniidae and Rajidae presented special difficulties which were only cleared up in the course of the preparation of Norman's report years afterwards. The invertebrates were more difficult owing to the great bulk of many of the catches. Quantities of previously preserved species were estimated and noted when possible, and all or a noted pro- portion of the others preserved; but the bulk of the catch and masses of broken sponges, coralline polyzoa, large Scyphomedusae, etc., frequently made it impossible to sort the catch adequately m the limited time Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Institute of Oceanographic Sciences (Great Britain); National Institute of Oceanography of Great Britain; Great Britain. Colonial Office. Discovery Committee. London ; New York : Cambridge University Press
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