. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FAUNA ABOVE MUD BOTTOMS IN DEEP WATER 315 group where they were scarce (216 and 218 Sebastes, respectively) ; while the largest and smallest catches of Sebastes (833 and 3) were both made at stations yielding only 4 liters and only 1 liter of shrimps, respectively. Neither do the present data yield any information as to the extent to which Pandalus, when abundant, serves as prey for Sebastes, the great majority of the latter having regurgitated the stomach contents before they were brought on board. A rough parallelism does,
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FAUNA ABOVE MUD BOTTOMS IN DEEP WATER 315 group where they were scarce (216 and 218 Sebastes, respectively) ; while the largest and smallest catches of Sebastes (833 and 3) were both made at stations yielding only 4 liters and only 1 liter of shrimps, respectively. Neither do the present data yield any information as to the extent to which Pandalus, when abundant, serves as prey for Sebastes, the great majority of the latter having regurgitated the stomach contents before they were brought on board. A rough parallelism does, however, appear, between the abundance of Merluccius and of shrimps, illustrated by the facts that the catch of the former averaged four times as great (494) for the group of stations 10 8. 5 10 15 20 25 30 35 LENGTH IN CM. FIG. 3. Length-frequency distribution of 270 specimens of Sebastes, Station 2662, smoothed once by running average of three. The broken curve marks the lower limit for adequate sampling by the nets employed. where shrimps were abundant as where they were scarce (114) ; that it was only where the catch of shrimps was less than 6 liters that the catch of Merluccius was as small as 100; and that no hauls where shrimps were so scarce yielded as many Merluccius as the average for the series as a whole (306). To judge from the predaceous nature of this fish and from its independence of the bottom, we are dealing here with a predator-prey relationship, though our present data fail to yield direct information in this regard for Merluccius any more than for Sebastes, and for the same reason. Flat fishes of the two species, combined, also averaged considerably. 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hol
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
