Partitioning of habitat and prey by abundant and similar-sized species of the Triglidae and Pempherididae (Teleostei) in coastal waters
Platell, M.E.; Potter, I.C. (1999). Partitioning of habitat and prey by abundant and similar-sized species of the Triglidae and Pempherididae (Teleostei) in coastal waters. Est., Coast. and Shelf Sci. 48(2): 235-252
In: Estuarine, Coastal and Shelf Science. Academic Press: London; New York. ISSN 0272-7714; e-ISSN 1096-0015, more
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| Keywords |
Activity patterns
Aquatic organisms > Food organisms
Behaviour > Feeding behaviour
Diets
Habitat selection
Interspecific relationships > Competition
Interspecific relationships > Predation > Prey selection
Niches
Amphipoda [WoRMS]; Lepidotrigla modesta Waite, 1899 [WoRMS]; Lepidotrigla papilio (Cuvier, 1829) [WoRMS]; Mysida [WoRMS]; Parapriacanthus elongatus (McCulloch, 1911) [WoRMS]; Pempherididae; Pempheris klunzingeri McCulloch, 1911 [WoRMS]; Polychaeta [WoRMS]; Triglidae Rafinesque, 1815 [WoRMS]
ISW, Australia [Marine Regions]
Marine/Coastal |
| Authors | | Top |
- Platell, M.E.
- Potter, I.C.
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| Abstract |
The aim of this study was to determine whether certain co-occurring and abundant species of the teleost families Triglidae and Pempherididae are segregated spatially and/or by diet, and are thus less likely to be susceptible to competition for resources. Nocturnal otter trawling in shallow (5-15 m) and deeper (20-35 m) waters in four regions along similar to 200 km of the south-western Australian coastline collected large numbers of a wide size range of the triglids Lepidotrigla modesta and Lepidotrigla papilio and the pempheridids Pempheris klunzingeri and Parapriacanthus elongatus. Although these four species frequently co-occurred at several sites, each species attained its highest density at different sites, thereby representing a partial segregation of these species by habitat. This even occurred with the congeneric triglid species, with L. Modesta being most abundant in the four deep, offshore sites, while L. Papilio was most numerous at three sites which varied in depth and distance from shore. Although triglids and pempheridids both consumed substantial amounts of amphipods and mysids, only the members of the latter family ingested a large amount of errant polychaetes. |
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