. The Canadian field-naturalist. 86 The Canadian Field-Naturalist Vol. 107 16 n I o O O O 12 - 8 - 4 - 0 1989 16 n. 12- 8- 6 7 8 4 - 0 I W m 1990 0 CRAB S SEASTAR ^ SNAIL D ANEMONE U CUCUMBER m URCHIN m OTHER ^ I 9 10 1 TRANSECT 6 8 9 11 12 Figure 2. Estimates of herring egg consumption on 1 m wide transects by invertebrates in Lambert Channel in 1989 and 1990. we sampled, and were estimated to have consumed fewer eggs than any of the invertebrate groups. Epibenthic predators were estimated to consume as much as 30% of eggs on transect 8 in 1990 and as little as 1% of eggs on transect 9 in 198
. The Canadian field-naturalist. 86 The Canadian Field-Naturalist Vol. 107 16 n I o O O O 12 - 8 - 4 - 0 1989 16 n. 12- 8- 6 7 8 4 - 0 I W m 1990 0 CRAB S SEASTAR ^ SNAIL D ANEMONE U CUCUMBER m URCHIN m OTHER ^ I 9 10 1 TRANSECT 6 8 9 11 12 Figure 2. Estimates of herring egg consumption on 1 m wide transects by invertebrates in Lambert Channel in 1989 and 1990. we sampled, and were estimated to have consumed fewer eggs than any of the invertebrate groups. Epibenthic predators were estimated to consume as much as 30% of eggs on transect 8 in 1990 and as little as 1% of eggs on transect 9 in 1989 (Figure 3). Overall removal averaged (SE=)% for the 14 transects and it was estimated that of total eggs were eaten. Discussion Herring eggs adhere to marine algae and sea grasses and the bottom substrate (Haegele and Schweigert 1985). Some of the eggs become detached and are washed up into the supra-littoral zone (Hay and Miller 1982) or accumulate as a slur- ry in bottom depressions. Hence, herring eggs are available to all marine invertebrates, including ses-. 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 Ottawa Field-Naturalists' Club. Ottawa, Ottawa Field-Naturalists' Club
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