Distribution, abundance, and substrate preferences of demersal reef zooplankton at Lizard Island Lagoon, Great Barrier Reef

Alldredge, Alice L.; King, J. M.

doi:10.1007/bf00389098

Cited by 189 publications

(106 citation statements)

References 13 publications

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“…All 17 emergent taxa considered by Alldredge & King (1977) at Lizard Island on the Great Barrier Reef were also represented in our samples, and 7 of the 10 crustacean taxa in their samples were important in defining the lagoon floor 85 Mar Ecol Prog Ser 336: 77-88, 2007 community at Davies Reef (Table 3). The benthic sampler captured more mysids, gammarids, harpacticoids, and nematodes than emergence traps placed in lagoon and sand flat habitats, and similar numbers of ostracods, calanoids, and cumaceans, but fewer cyclopoids and isopods.…”

Section: Lagoon Floor Communitymentioning

confidence: 85%

The hyperbenthic plankton community: composition, distribution, and abundance in a coral reef lagoon

Carleton¹,

Hamner²

2007

Mar. Ecol. Prog. Ser.

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Seasonal and diel variations in community structure and abundance of the lagoon hyperbenthic community were examined at Davies Reef, Great Barrier Reef. The lagoon floor community differed from that in the overlying water, it was faunistically more uniform, and it was assembled into statistically distinct seasonal and diel groupings. The lagoon floor community was characterized by reef-associated mysids, gammarids, calanoids, ostracods, harpacticoids, cyclopoids, nematodes, caprellids, and cumaceans. The community was most distinctive in October. The water column community had greater diel than seasonal variability. The nocturnal water column community was characterized by decapod larvae, zoea, larvaceans, fish larvae, gastropod larvae, and nauplii, but was dominated numerically by calanoid copepods (> 60%). Catches on the lagoon floor ranged from 750 to 3330 ind. m -3 , with peak abundance in October, while water column catches were lower (25 to 2500 ind. m -3 ), with peak nocturnal abundance in February. Most species in the hyperbenthic community do not migrate into the water column at night, but instead remain concentrated near the lagoon floor. Only the mysid Anisomysis laticauda, the copepod Acartia australis, and the ostracod Cypridina sp. A were consistently captured on the lagoon floor by day and in surface waters at night. The lagoon hyperbenthic community probably contributes to coral reef ecosystems through the remineralization of organic detritus. Given the high abundance of relatively large individuals, the contribution of the resident, lagoon floor community to coral reef ecosystems must be substantial.KEY WORDS: Hyperbenthos · Plankton · Coral reef lagoon · Community structure Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 336: [77][78][79][80][81][82][83][84][85][86][87][88] 2007 Coral reef lagoons are zones of net heterotrophy requiring input of detritus from adjacent areas of high primary production (Wilkinson 1987, Alongi 1988. Initial attempts to model detritus-based food webs within the relatively enclosed lagoon at Davies Reef accounted for only 20% of incoming detrital material (MECOR -microbial ecology of a coral reef; Wilkinson 1987). These early studies concentrated on processes within the water column and within the sediments, and did not consider the role of the rich diversity of animals that blanket the lagoon floor. Subsequent studies determined that macro-infauna account for 3 to 11% of total organic matter (Riddle et al. 1990) and that sediment bacteria seasonally consume from 54 to 100% of the available carbon (Hansen et al. 1992), further enhancing our understanding of benthic processes, but still ignoring the trophodynamic role of the hyperbenthos.Carleton & Hamner (1987) developed a benthic sampler for use in coral reef lagoons to effectively study seasonal and diel variation in mysids (Carleton & Hamner 1989), an integral component of the hyperbenthos in many littoral and coastal habitats (Mauchline 1980). Here,...

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Section: Lagoon Floor Communitymentioning

confidence: 85%

The hyperbenthic plankton community: composition, distribution, and abundance in a coral reef lagoon

Carleton¹,

Hamner²

2007

Mar. Ecol. Prog. Ser.

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“…What we need now is more life-history and behavioral information to determine which meiofaunal-sized organisms live within the sediments, which actively and passively utilize the sediments and water, or w h~c h live and feed exclusively In the benthic boundary layer Unless a species is known to spend some amount of time in the sediments (i.e. not live exclusively in the benthic boundary layer), perhaps it is best to take an ecological view of this animal as demersal or hyperbenthic (Alldredge & King 1977, Sibert 1981, Olhorst 1982). Comparing dispersal modes of non-sediment dwellers to infaunal meiofauna just because they are similar in size (both 'meio'), leads to confusion and unnecessary speculation as to why they differ so with respect to recruitment modes.…”

Section: Future Directionsmentioning

confidence: 99%

Dispersal of marine meiofauna. Areview and conceptual model explaining passive transport and active emergence with implications for recruitment

Palmer¹

1988

Mar. Ecol. Prog. Ser.

261

182

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A number of recent studies have shown that water-column processes exert an important influence on meiofaunal recruitment and colonization of new areas. T h~s paper reviews those studies which have investigated the water-column occurrence of meiofauna and the subsequent settlement process. Two distinct patterns exist for recruitment via water-column pathways: active entry of meiofauna into the water and passive erosion of meiofauna from the sediments. A conceptual model is proposed in which 4 factors interact to determine whether active vs passive mechanisms are most important for a given community: taxonomic con~position, hydrodynamics, aboveground structure, and disturbance. For the melofauna of areas which are hydrodynamically benign and dominated by actice swimmers (e. g, seagrass beds), water-column recruitment should involve substrate cholce through active swimming. In areas which are free of aboveground structure and more rigorous hydrodynamically (e. g. tidal flats, beaches) passive recruitment processes dominate and are modified by behaviors which may influence transport and settlement. In all habitats, structure probably acts to enhance active emergence to some extent while disturbance events may lead to increased suspension and possibly actlve emergence Future directions are discussed with an emphasis on the need for the development and standardization of new methodologies which can be used in a variety of habitats.

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“…The hatching times of eggs were examined using a transparent, perspex, demersal plankton trap modelled from those used by Alldredge and King (1977). The trap was placed over a patch of stage three eggs (see Results) in such a way that a space under the rim of the trap still allowed the nesting male to groom the eggs (by mouthing and fanning the eggs).…”

Section: Larval Abundancesmentioning

confidence: 99%

The demersal eggs and planktonic larvae ofChromis dispilus(Teleostei: Pomacentridae) in north‐eastern New Zealand coastal waters

Kingsford

1985

New Zealand Journal of Marine and Freshwater Research

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The demersal eggs and planktonic larvae of Chromis dispilus are described. Information is provided on egg hatching times and the abundance of larvae in surface waters. Eggs reared in the laboratory, and monitored in the field, took 5.5 days to hatch. Pigmentation patterns on the eggs, which change during development, allow the eggs to be staged in situ. Recognition of egg stages can be used to study the spawning and egg hatching times of C. dispilus. Larvae captured in a demersal plankton trap showed that eggs hatch after dark and usually on the outgoing tide. Immediately after hatching, larvae swim to the surface where they can be captured in large numbers using ichthyoplankton hauls. Since C. dispilus spawning is synchronous, large pulses of larvae can be expected to enter the plankton at intervals over the summer breeding season.

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Distribution, abundance, and substrate preferences of demersal reef zooplankton at Lizard Island Lagoon, Great Barrier Reef

Cited by 189 publications

References 13 publications

The hyperbenthic plankton community: composition, distribution, and abundance in a coral reef lagoon

The hyperbenthic plankton community: composition, distribution, and abundance in a coral reef lagoon

Dispersal of marine meiofauna. Areview and conceptual model explaining passive transport and active emergence with implications for recruitment

The demersal eggs and planktonic larvae ofChromis dispilus(Teleostei: Pomacentridae) in north‐eastern New Zealand coastal waters

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