Ontogenetic change in the diet ofAplodactylus punctatus (Pisces: Aplodactylidae): an ecophysiological explanation

Benavides, A.G; Cancino, Juan M.; Ojeda, F. Patricio

doi:10.1007/bf00699213

Cited by 25 publications

(12 citation statements)

References 18 publications

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“…The larval and post-larval stages of most herbivorous fishes are planktivorous, progressively becoming omnivorous during their juvenile stages, and then herbivorous upon reaching maturity (Benavides et al 1994). A shift from animal to plant diet is related to an increase in the capability of assimilating the walls of seaweed and plant cells as the length of the digestive tract increases during ontogeny (Horn 1989;Clements and Choat 1993;Benavides et al 1994). Many herbivorous fishes have the low stomach pH levels and specialized guts required for the digestion of plant materials (Horn and Messer 1992).…”

Section: Seaweeds As Foodmentioning

confidence: 99%

Seaweeds preferred by herbivorous fishes

Tolentino-Pablico¹,

Bailly²,

Froese

et al. 2007

J Appl Phycol

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Marine macrobenthic algae (or seaweeds), epiphytic microalgae, and other aquatic plants constitute the main food items of marine herbivorous fishes. About 5% of all fish species are herbivorous; only 30% of these are marine, most of them living in coral reefs. An analysis was performed on all the seaweeds that formed part of the natural diet of these fishes, based on information contained in FishBase (http://www.fishbase.org). The results showed that many coral-reef-associated marine herbivorous fishes, such as the families Blennidae, Kyphosidae and Siganidae, fed selectively on filamentous and turf fleshy seaweeds, which they prefer over calcareous coralline and encrusting species. In particular, Chlorophyceae of the genera Cladophora, Enteromorpha and Ulva were preferred by Scartichthys viridis (Blennidae), Girella spp. (Kyphosidae), Sarpa salpa (Sparidae), and Phaeophyceae in the genera Sargassum and Dictyota were preferred by Kyphosus spp. (Kyphosidae) and Siganus spp. (Siganidae). A web-based tool was developed to provide information on plants (algae, seagrasses, terrestrial plants and fruits) preferred as food by herbivorous fishes (http://www.incofish.org/herbitool.php). The tool is intended to assist aquaculturists, conservationists and ecosystembased fisheries managers.

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Section: Seaweeds As Foodmentioning

confidence: 99%

Seaweeds preferred by herbivorous fishes

Tolentino-Pablico¹,

Bailly²,

Froese

et al. 2007

J Appl Phycol

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“…Several authors have proposed that young animals that are herbivorous as adults, must feed on animal items to meet their relatively higher juvenile energy demands (Pough, 1973;White, 1985;Zimmermann & Tracy, 1989;Benavides et al, 1994a).…”

Section: Introductionmentioning

confidence: 99%

Ontogenetic changes in the diet of the herbivorous Scartichthys viridis in a rocky intertidal zone in central Chile

Muñoz

Ojeda

2000

Journal of Fish Biology

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Scartichthys viridis maintains a herbivorous diet following recruitment to rocky intertidal areas, where it consumes almost exclusively macroalgae. The sheet-like green macroalgae Ulva and Enteromorpha were the main items consumed by individuals <130 mm L T . The tough branching red macroalga Gelidium made the bulk of the gut contents of specimens >220 mm L T , Ulva being consumed to a much lesser extent. Further, Gelidium increased in importance in the total gut contents during ontogeny. In contrast, both small (70-120 mm L T ) and medium-sized (140-210 mm L T ) S. viridis individuals preferred Ulva in the laboratory. It is suggested that the increasing consumption of Gelidium along the ontogeny of S. viridis results from the limited availability of Ulva in the field. Large S. viridis individuals possessed longer guts relative to their body length, in comparison with small individuals. 2000 The Fisheries Society of the British Isles

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“…While these apparent ontogenetic changes may be due to a changing ecophysiology (i.e. lower energetic demands and/or greater algal assimilation efficiencies) as fish grow larger (Benavides et al, 1994), size-related shifts in prey availability may also be a factor. Main (1985) indicates that diet preference is strongly influenced by the size and movement of the prey which contributes to their visibility, and hence, vulnerability of capture.…”

Section: Discussionmentioning

confidence: 97%

A preliminary examination of the diet and feeding of sea sweep Scorpis aequipinnis (Pisces: Scorpididae) from coastal waters of south-western Victoria, Australia

2005

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The diet and feeding of sea sweep (Scorpis aequipinnis) was investigated from 230 specimens collected from the south-western Victorian coastline between January and July, 2002. Stomach content analysis indicated that S. aequipinnis are browsing omnivores (55.6% algae, 25.4% animal, by dry weight), with rhodophytes found to be the most important component of their diet (93.5% frequency of occurrence; 42.6% dry weight; 45.5% prey-specific abundance). However, the relative proportions of the major dietary components differed significantly between size classes. The dietary composition of small individuals (<150 mm total length) was significantly different to larger individuals, primarily due to a higher degree of carnivory exhibited by the smaller fish. S. aequipinnis were found to be highly flexible feeders exploiting both benthic and pelagic food resources, characterised by irregular periods of selective carnivorous feeding.

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Ontogenetic change in the diet ofAplodactylus punctatus (Pisces: Aplodactylidae): an ecophysiological explanation

Cited by 25 publications

References 18 publications

Seaweeds preferred by herbivorous fishes

Seaweeds preferred by herbivorous fishes

Ontogenetic changes in the diet of the herbivorous Scartichthys viridis in a rocky intertidal zone in central Chile

A preliminary examination of the diet and feeding of sea sweep Scorpis aequipinnis (Pisces: Scorpididae) from coastal waters of south-western Victoria, Australia

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