Subtropical Australian juvenile fish eat meiofauna:experiments with winter whiting Sillago maculata and observations on other species

Coull, Bruce C.; Greenwood, JG; Fielder,; Coull, BA

doi:10.3354/meps125013

Cited by 79 publications

(46 citation statements)

References 10 publications

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“…A similar pattern was also found in the profundal of Lake Brunsee, where the benthic community was dominated by nematodes followed by rotifers (Bergtold and Traunspurger, 2004). Additionally, other studies showed that soft bottoms are generally dominated by nematodes (e.g., Holopainen and Passivirta, 1977;Traunspurger, 2002;Wu et al, 2004), whereas hard bottoms are generally dominated by harpacticoid copepods, isopods and amphipods, whereas nematodes accounted for a minor fraction (Coull et al, 1983(Coull et al, , 1995Danovaro, 1996;Danovaro and Fraschetti, 2002).…”

Section: Meio-and Macrofauna Development During Decompositionsupporting

confidence: 68%

Ecological studies on the decomposition rate of fish carcasses by benthic organisms in the littoral zone of Lake Constance, Germany

Premke¹,

Fischer

Hempel³

et al. 2010

Ann. Limnol. - Int. J. Lim.

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-Using field experiments, we investigated the effects of fish carcasses (so called 'food falls') on benthic fauna. We simulated food falls using freshly killed fish during two different seasons (spring and summer) in the littoral zone of a large, pre-alpine meso-oligotrophic lake in central Europe (Lake Constance, Germany). This study provides evidence that input in the form of fish carcasses may play an important role in nutrient dynamics within this ecosystem. The benthic communities in the vicitinity and underneath the food fall were strongly influenced by the food fall. The results show that this supply of organic matter has a significant influence on the relationships within the communities, which are clearly dominated by bacteria, followed by copepod nauplii, cyclopoid copepods, chironomids, and ostracods. Total decomposition was obtained between days 80 and 68 of the experiments. The food fall had a positively but not significant effect on meiofaunal assemblages in these experiments. Furthermore, the results showed a negative relationship between bacteria and meiofauna abundance, indicating grazing by the meiobenthos on the bacterial community. These findings support other studies that found that the meiofauna exerted a grazing pressure on the microbial community, where this process was important in the decomposition of carcasses. Moreover, this study shows the potential importance of fish carcasses in Lake Constance, where food falls may generate high abundances and diversity of the benthic fauna and support high bacterial activities in this littoral ecosystem.

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Section: Meio-and Macrofauna Development During Decompositionsupporting

confidence: 68%

Ecological studies on the decomposition rate of fish carcasses by benthic organisms in the littoral zone of Lake Constance, Germany

Premke¹,

Fischer

Hempel³

et al. 2010

Ann. Limnol. - Int. J. Lim.

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“…Reilly et al, 1992;Coull et al, 1995;Platell et al, 1997). This probably reflects the fact that their relatively large mouths (cf.…”

Section: Ontogenetic Changes Mouth Morphology and Foraging Behaviourmentioning

confidence: 99%

Distributions, Size Compositions and Diets of Two Abundant Benthic Ambush-Feeding Teleosts in Coastal Waters of South-Western Australia

Platell

Potter

1998

J. Mar. Biol. Ass.

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The scorpaenid Maxillicosta scabriceps (Teleostei) and the platycephalid Platycephalus longispinis (Teleostei) were trawled seasonally for a year from shallow (5-15 m) and deeper (20-35 m) waters in four distantly-located regions of the inner continental shelf of south-western Australia. The former species was more abundant in southern regions, which is consistent with its temperate distribution, while the latter species was more abundant in deep than shallow waters. Unlike M. scabriceps, P. longispinis with total lengths < 110 mm were rarely caught, indicating that this latter species only moves on to the sandy substrate of the inner shelf when it reaches a certain size. As M. scabriceps increased in size, the contributions of mysids, amphipods and oxyrhyncan crabs to the diet declined, while those of carid decapods and brachyrhyncan crabs increased. The invertebrate fauna ingested by the smallest length-class of P. longispinis, 110-139 mm, was similar to that of the same and largest length-class of M. scabriceps. However, unlike M. scabriceps, this length-class of P. longispinis consumed teleosts, despite having a relatively smaller mouth. The contribution of teleosts subsequently increased as P. longispinis increased in size, a feature reflected by the relatively low dietary breadth of large fish. The marked shift in the types of prey ingested by P. longispinis as it increased in size accounted for the fact that, in contrast to M. scabriceps, there was limited dietary overlap between the larger and smaller members of this platycephalid. The ability of P. longispinis to ingest other fish is presumably related to the fact that platycephalids lie just under the substrate surface and are thus concealed from their potential prey, and that they are able to emerge rapidly and pursue their prey. Unlike several other local demersal fish species, M. scabriceps and P. longispinis ingested only a small amount of sediment, implying that these ambush predators target their prey very precisely, a foraging mode that would be facilitated by the epibenthic and conspicuous nature of their prey. The absence of marked differences in the dietary compositions of these two species in different regions, water depths and seasons is consistent with a specific mode of foraging by these species. INTRODUCTIONDemersal species of teleosts are essentially restricted to feeding on those prey that are found either in or close to the substrate and which typically comprise polychaetes, molluscs, crustaceans and small benthic teleosts (Gibson & Ezzi, 1987; HarmelinVivien et al., 1989;Meyer & Smale, 1991). However, the dietary compositions of the various species within demersal fish communities sometimes differ quite markedly, reflecting the different modes of feeding that are associated with a range of morphological and behavioural adaptations (e.g. Blaber & Bulman, 1987; Gibson & 588 M.E. PLATELL AND I.C. POTTER Ezzi, 1987;Fujita et al., 1995;Motta et al., 1995). Yet it is still frequently possible to group different species within a demersal f...

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“…Community macrozoobenthos invertebrates important in demonstrating biodiversity, ecosystem health and play an important role as a component of trophic important in the food web (Coull et al, 1995;MacFarlane and Booth, 2001;Yap et al, 2003;Azrina et al, 2006). One group of invertebrates, which are often used in environmental monitoring are gastropods.…”

Section: Gastropodsmentioning

confidence: 99%

Gastropods As A Bioindicator and Biomonitoring Water Pollution

Samsi¹,

Asaf²,

Sahabuddin³

et al. 2017

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Andi Nur Samsi, Ruzkiah Asaf, Sahabuddin, Andi Santi, and Muhammad Ikhsan Wamnebo. 2017. Review: Gastropods as A Bioindicator and Biomonitoring Metal Pollution. Aquacultura Indonesiana, 18 (1): 1-8. Water pollution effect on aquatic organisms and if consumed can affect people's health. These pollutants can be heavy metals such as Cd, Pb, Cr, Hg, and others. Heavy metals have high levels will cause disorders of the kidneys, brain, severe irritation to the skin, can cause diarrhea and even death. The purpose of this paper is to explain physiological mechanisms that occur in the body of gastropods are linked to pollutants in the water environment. Therefore, monitoring the level of pollution a body of water that is alleged to have suffered contamination is very important. Gastropods are one of the aquatic animals (Class) used as bioindicators and biomonitoring for this group of animals has a high ability to accumulate heavy metals in their bodies compared to other aquatic animals. Gastropods is one bioavailability against metal pollution so that it can be used for environmental monitoring. Littoraria scabra, Nassarius reticulatus, Nerita albicilla, Nucella lapillus, Gibberulus gibbosus, Terebralia palustris, and Telescopium telescopiun always use as biomonitoring metal pollution. The main indicator that can be shown by gastropods is declining abundance and body size. Other indicators are as bioavailability of heavy metals in the soft tissues and shells. The ability of the heavy metal deposits is influenced by environmental factors, body size, weight, and gender. Heavy metals can affect hard, thickness, volume, and color of the shell.

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Subtropical Australian juvenile fish eat meiofauna:experiments with winter whiting Sillago maculata and observations on other species

Cited by 79 publications

References 10 publications

Ecological studies on the decomposition rate of fish carcasses by benthic organisms in the littoral zone of Lake Constance, Germany

Ecological studies on the decomposition rate of fish carcasses by benthic organisms in the littoral zone of Lake Constance, Germany

Distributions, Size Compositions and Diets of Two Abundant Benthic Ambush-Feeding Teleosts in Coastal Waters of South-Western Australia

Gastropods As A Bioindicator and Biomonitoring Water Pollution

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