The production and trophic ecology of shallow-water fish assemblages in southern Australia I. Species richness, size-structure and production of fishes in Western Port, Victoria

Edgar, Graham J.; Shaw, Craig

doi:10.1016/0022-0981(95)00083-6

Cited by 126 publications

(68 citation statements)

References 59 publications

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“…Many of the infaunal/epifaunal taxa important in the diets of fish use unvegetated mudflats (Edgar & Shaw 1995b), so a greater biomass of fish (and larger size of fishes) using mudflats may also reflect energy budgets and local variability in the availability of prey. The most abundant species collected from mudflats (Sillaginodes punctata, Favonigobius lateralis and Tetractenos glaber) in our study were consistently sampled from mudflats and seagrass beds throughout Western Port by Shaw (1995a) andRobertson (1980). One of the most abundant species we collected in mangroves (Pseudogobius olorum) was common on mudflats adjacent to stands of mangroves in other regions of Western Port (Edgar & Shaw 1995a).…”

Section: Variability In Assemblages Of Fish Using Mangroves Versus Mumentioning

confidence: 62%

“…Individual trees here are smaller (< 3 m in height) than in the tropics, where this species may exceed 10 m (Harty 1997), and the stands of mangroves are largely restricted to protected regions of the bay where the substratum is muddy sand. The study region in Western Port was chosen because it has large stands of mangrove, the substratum is firm enough to enable nets to be set by foot and we have a good understanding of the local fish assemblages (Robertson 1980, Edgar & Shaw 1995a. The intertidal can be separated into 3 habitat zones: (1) mangrove forest (≈20 to 30 m landward of the seaward edge of the mangroves); (2) mangrove edge (seaward edge of the mangrove forest); and (3) intertidal mudflat (an area of the intertidal without mangroves at the terrestrial-marine confluence).…”

Section: Methodsmentioning

confidence: 99%

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Assessing patterns of fish zonation in temperate mangroves, with emphasis on evaluating sampling artefacts

Hindell¹,

Jenkins²

2005

Mar. Ecol. Prog. Ser.

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Section: Variability In Assemblages Of Fish Using Mangroves Versus Mumentioning

confidence: 62%

Section: Methodsmentioning

confidence: 99%

Assessing patterns of fish zonation in temperate mangroves, with emphasis on evaluating sampling artefacts

Hindell¹,

Jenkins²

2005

Mar. Ecol. Prog. Ser.

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“…It is also possible that an important part of the fish production was not accounted, as the fish inhabiting the seagrass and saltmarsh areas of the Mondego estuary were not correctly assessed. These are known as important nursery areas, providing both food and shelter for several small fishes (Beck et al, 2001;Costa et al, 2001;Cabral et al, 2007), and where fish production can be considerably higher compared to unvegetated areas (Edgar and Shaw, 1995). Moreover, the relative low density and biomass of the marine species, hence production, may be attributed to the small area compared to other systems, and small opening of the Mondego estuary, which may limit the entrance of marine species (Martinho et al, 2007b).…”

Section: Resident and Nursery Species Productionmentioning

confidence: 99%

Estuarine production of resident and nursery fish species: Conditioning by drought events?

Dolbeth

Martinho

Viegas

et al. 2008

Estuarine, Coastal and Shelf Science

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The production of resident (Pomatoschistus minutus and Pomatoschistus microps) and marine juvenile fish species using the Mondego estuary (central Portugal) as nursery grounds (Dicentrarchus labrax, Platichthys flesus, Solea solea), was assessed in order to: (1) understand the potential of the estuary for fish production; (2) know the production of nursery fish species likely to be exported to the coastal stocks; and (3) how anthropogenic and natural stress could influence the estimated production. C, night temperatures). The secondary production was estimated using the increment summation method, after recognition of the cohorts. Production was in general lower in the Mondego estuary when compared to other systems, which was associated to the estuary's small area (only 3.4 km 2 , less than 1/4 of area compared to other studied systems). Dicentrarchus labrax was among the most productive species. Production decreased in the drought year for all species, especially evident for D. labrax, P. minutus and P. flesus. No direct effects could be attributable to the salinity and temperature variations and to the low freshwater discharges (resulting from the drought and high temperatures), yet these were pointed as probable major reasons for the decreased production. A significant reduction (15e45% reduction in the estuarine production) was also concluded for the potential production to be exported for coastal areas by the nursery species in the drought conditions.

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“…Tidal mudflats occupy a significant component of the total estuarine habitat available to fishes and play important roles as nursery and foraging grounds (Edgar and Shaw, 1995;Horinouchi and Sano, 2000). Few studies on the feeding habits of each species within such assemblages have been conducted, although most have been made in temperate regions (Edgar and Shaw, 1995;Horinouchi et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

“…Few studies on the feeding habits of each species within such assemblages have been conducted, although most have been made in temperate regions (Edgar and Shaw, 1995;Horinouchi et al, 1996).…”

Section: Introductionmentioning

confidence: 99%

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Chaudhuri¹,

Mukherjee²,

Homechaudhuri³

2012

Turk. J. Fish. Aquat. Sci.

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Intertidal mudflats occupy a significant component of the total estuarine habitat available to fishes as nursery and foraging grounds. In this study, fifteen sites were randomly explored along three estuarine rivers in Indian Sundarbans and 27 fish species, were recorded. Upon analysis of prey preferences, they were categorized into different trophic types. A comparative study of the digestive physiology of 10 carnivorous species as functional analogues was carried out in order to find out relationship between digestive enzyme activity and trophic niche segregation among them. Rarefaction curves for stomach content analysis indicated diverse nature of prey preferences among different species. A dendrogram based on prey diversity was constructed through cluster analysis. Another dendrogram was constructed based on enzymes (i.e. α-amylase, invertase, cellulose, alkaline protease and pepsin) which were measured from liver, stomach and intestine of ten carnivorous species. A comparison of the two dendrograms did not reflect any positive relationship between prey preferences and digestive enzymes. It was, therefore, concluded that enzyme patterns were more affected by phylogeny rather than adaptability. No clear predominance among digestive enzymes was observed in relation to food, suggesting that the organic matter of animal origin was utilized non-selectively by these fishes since the quality and variety of available food were subjected to change and over time in such a dynamic environment.

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The production and trophic ecology of shallow-water fish assemblages in southern Australia I. Species richness, size-structure and production of fishes in Western Port, Victoria

Cited by 126 publications

References 59 publications

Assessing patterns of fish zonation in temperate mangroves, with emphasis on evaluating sampling artefacts

Assessing patterns of fish zonation in temperate mangroves, with emphasis on evaluating sampling artefacts

Estuarine production of resident and nursery fish species: Conditioning by drought events?

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