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Diet composition and guild structure of mesopelagic and bathypelagic fishes near Macquarie Island, Australia
Citation
Gaskett, AC and Bulman, CM and He, X and Goldsworthy, SD, Diet composition and guild structure of mesopelagic and bathypelagic fishes near Macquarie Island, Australia, New Zealand Journal of Marine and Freshwater Research, 35, (3) pp. 469-476. ISSN 0028-8330 (2001) [Refereed Article]
DOI: doi:10.1080/00288330.2001.9517016
Abstract
Mesopelagic (200-1000 m) and bathypelagic ( > 1000 m) fish near Macquarie Island, Australia, are important in the diets of seals, seabirds, and Patagonian toothfish. They also form important links between the productivity at shallow and deeper water depths. Here we analyse the diets of 23 fish species, 13 of which are from the family Myctophidae from 254 stomach samples. Crustaceans (particularly copepods, amphipods, and euphausiids) were the dominant prey in 18 species. Fishes were the dominant prey in five species. Further analysis showed that five of the 13 myctophid fishes bad a low level of similarity in diet composition between individuals of each species, whereas the other eight species had significantly high levels of similarity. Cluster analysis and randomisation procedures suggested the existence of five trophic guilds among the Myctophidae.
Item Details
Item Type: | Refereed Article |
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Research Division: | Biological Sciences |
Research Group: | Ecology |
Research Field: | Marine and estuarine ecology (incl. marine ichthyology) |
Objective Division: | Animal Production and Animal Primary Products |
Objective Group: | Fisheries - wild caught |
Objective Field: | Fisheries - wild caught not elsewhere classified |
UTAS Author: | Bulman, CM (Dr Catherine Bulman) |
ID Code: | 22743 |
Year Published: | 2001 |
Web of Science® Times Cited: | 37 |
Deposited By: | Zoology |
Deposited On: | 2001-08-01 |
Last Modified: | 2011-08-03 |
Downloads: | 0 |
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