The herbivorous fish, Aplodactylus punctatus, as a potential facilitator of dispersal of kelp, Lessonia trabeculata, in Chile

Ruz, Catalina S.; Muth, Arley F.; Tala, Fadia; Pérez‐Matus, Alejandro

doi:10.1016/j.jembe.2017.12.007

Cited by 23 publications

(12 citation statements)

References 65 publications

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“…Temporal or seasonal variability may also partly explain the differences, as Aplodactylus punctatus and Girella laevifrons were only recorded in December 2005 during the former study (Villegas et al 2018d, e, f). Furthermore, Ruz et al (2018) revealed strong interactions of the former fish with the kelp Lessonia trabeculata, which also forms beds at the present study site (Villegas et al 2008). Indeed, the diet of adult Aplodactylus punctatus is composed of 75% L. trabeculata and 10% other algae (i.e.…”

Section: Fish Community Composition and Diversity Related To Forestedmentioning

confidence: 55%

“…As typical of Laminariales, its motile, flagellated zoospores are released into the water. The zoospores are viable for a few hours and are, therefore, only capable of short distance dispersal before settlement to suitable substrate (but see Macaya et al 2005 andRuz et al 2018 for a different species of the Laminariales). Restoration can speed up this process (Hernández-Carmona et al 2000;Correa et al 2006;Westermeier et al 2016) although the present study indicates that the appropriate method should be selected.…”

Section: Harvesting and Forestingmentioning

confidence: 99%

“…The effects of kelp harvest on the ecology of the northern Chilean sublittoral system have not yet been analysed (Pérez-Matus et al 2017). Any kelp bed reduction due to environmental changes and/or exploitation means (i) loss of refuge against predators which is particularly important for early life history stages (Carr 1994;Levin and Hay 1996;Carr and Reed 2015), (ii) loss of protection against wave impact reported by for Lessonia nigrescens, (iii) destruction of habitat for several invertebrate and fish taxa (Cancino and Santelices 1981;Pérez-Matus et al 2007), (iv) a modification of vegetational strata (Santelices and Ojeda 1984) and (v) the elimination of a food resource for fishes (Medina et al 2004;Ruz et al 2018).…”

Section: Introductionmentioning

confidence: 99%

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Effect of foresting barren ground with Macrocystis pyrifera (Linnaeus) C. Agardh on the occurrence of coastal fishes off northern Chile

et al. 2018

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Macrocystis pyrifera kelp beds play a significant ecological role along the coast of Chile. Besides their importance as food, protection structures, substrata, microhabitats and nurseries, regularly occurring natural disturbances (e.g. extremes of the climate variability El Niño-Southern Oscillation) and increased kelp exploitation affect these habitats. The present study aimed to test the dependence of reef fishes on Macrocystis pyrifera and to evaluate the effect of an enhanced habitat structure (experimental M. pyrifera bed) on the abundance, composition and spatial distribution on rock, on macroalgae, in the water column and on sand of the reef fish community. Boulders colonised by M. pyrifera were transported into three replicated experimental areas (9 m 2 each) located in a barren ground area. Three barren ground areas (9 m 2 each) without manipulation were selected as controls. The fish abundance, composition and spatial distribution on rock, on macroalgae, in the water column and on sand were recorded weekly by scuba diving over a period of 3 months, between 15 February 2007 and 13 June 2007 (4 months). Results indicate significantly higher abundances (mean = 225%) of fishes in the forested areas compared to the barren ground controls (mean = 3.71 fishes/9 m 2 and 1.14 fishes/9 m 2 , respectively). Scartichthys gigas/viridis, Chromis crusma, Cheilodactylus variegatus and Isacia conceptionis numerically dominated the fish assemblages of the experimental kelp patches. Each fish species revealed different distributions in the forested areas: Scartichthys gigas/viridis was more abundant on rocks and C. variegatus in the macroalgae, whereas C. crusma and I. conceptionis preferred the water column above the experimental kelp bed. During the experimental time, the kelp lost some blades and some plants became detached. The overall number of fishes correlated with the declining kelp abundance (r = 0.964, p < 0.05). The fish species showed different responses to these changes in the experimental areas: C. variegatus and I. conceptionis declined in abundance, whereas the abundance of Scartichthys gigas/ viridis remained constant.

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Section: Fish Community Composition and Diversity Related To Forestedmentioning

confidence: 55%

Section: Harvesting and Forestingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of foresting barren ground with Macrocystis pyrifera (Linnaeus) C. Agardh on the occurrence of coastal fishes off northern Chile

et al. 2018

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“…hydrophily in Sargassum muticum, Norton and Mathieson 1983; Macrocystis pyrifera , Hobday 2000, MacAya and Zuccarello 2010) or via zoophily ( Lessonia trabeculata zoospores in the gut of Aplodactylus punctatus; Ruz et al. 2018), though not all propagules survive gut transport (Santelices and Correa 1985). Enteromorpha compressa (now Ulva compressa ) was the only one of eighteen seaweed species to remain viable after digestion by vertebrate grazers like the clingfish Sicyases sanguineus (Paya and Santelices 1989) and mysid grazing in the water column is known to significantly reduce settlement capacity of M. pyrifera spores (VanMeter and Edwards 2013).…”

Section: Life Cycle Diversitymentioning

confidence: 99%

Revisiting the ‘bank of microscopic forms’ in macroalgal‐dominated ecosystems

Schoenrock

McHugh

Krueger‐Hadfield

2020

Journal of Phycology

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Theoretical ecological models, such as succession and facilitation, were defined in terrestrial habitats, and subsequently applied to marine and freshwater habitats in intertidal and then subtidal realms. One such model is the soil seed bank, defined as all viable seeds (or fruits) found near the soil surface that facilitate community restoration/recovery. “Banks of microscopic forms” have been hypothesized in aquatic habitats and recent work from aquaculture has highlighted dormancy in algal life cycle stages. To reinvigorate the discussions about these algal banks, we discuss differences in life cycles, dispersal, and summarize research on banks of macroalgal stages in aquatic ecosystems that may be easier to explore with modern advances in molecular technology. With focus on seminal work in global kelp forest ecosystems, we present a pilot study in northern California as proof of concept that Nereocystis luetkeana and Alaria marginata stages can be detected within kelp forests in the biofilm of rocks and bedrock using targeted primers long after zoospore release. Considering the increased interest in algae as an economic resource, [blue] carbon sink, and as ecosystem engineers, the potential for “banking” macroalgal forms could be a mechanism of resilience and recovery in aquatic populations that have complex life cycles and environmental cues for reproduction. Molecular barcoding is becoming an important tool for identifying banks of macroalgal forms in marine communities. Understanding banks of macroalgal stages, especially in deforested habitats with intense disturbance and grazer pressure, will allow researchers and marine resource managers to facilitate this natural process in recovery of the aquatic system.

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“…This process results in some kelp matter sinking to the seabed, providing a food source for abalone and turban shells (Noda 2006). Furthermore, Ruz et al (2018) suggested that kelp consumption by the herbivorous fish Aplodactylus punctatus may positively affect kelp populations by facilitating the transport of kelp zoospores. Therefore, the loss of herbivorous fishes could adversely affect algal forest ecosystems.…”

Section: Discussionmentioning

confidence: 99%

Using optimised otolith sectioning to determine the age, growth and age at sexual maturity of the herbivorous fish Kyphosus bigibbus: with a comparison to using scales

Ogino

Furumitsu

Kiriyama

et al. 2020

Mar. Freshwater Res.

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Determining the population parameters of herbivorous fishes facilitates our understanding of their overall effects on ecosystems. However, this has not been successful with species such as Kyphosus bigibbus that are difficult to age using otoliths. In this study, we estimated the age, growth and age at sexual maturity of K. bigibbus off the west coast of Kyushu, Japan, using fish scales and otoliths. Scales were found unreliable because they caused underestimation of the age of fish older than 5 years, whereas otoliths were reliable when used with our improved otolith-sectioning methodology. The maximum age and fork length were 46 years and 574mm for females and 32 years and 506mm for males. According to the von Bertalanffy growth curves, females became slightly larger than males, and both sexes showed nearly asymptotic fork lengths after 10 years. The age at 50% sexual maturity for females and males was 3.2 and 1.9 years respectively, which is extremely early considering their maximum age. The year-class composition of K. bigibbus suggests that its recruitment may have increased rapidly since 1999, following noticeable losses of kelp forests in this region. Our findings will contribute to the understanding of algal forest ecosystems and advancement of fish ageing studies.

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The herbivorous fish, Aplodactylus punctatus, as a potential facilitator of dispersal of kelp, Lessonia trabeculata, in Chile

Cited by 23 publications

References 65 publications

Effect of foresting barren ground with Macrocystis pyrifera (Linnaeus) C. Agardh on the occurrence of coastal fishes off northern Chile

Effect of foresting barren ground with Macrocystis pyrifera (Linnaeus) C. Agardh on the occurrence of coastal fishes off northern Chile

Revisiting the ‘bank of microscopic forms’ in macroalgal‐dominated ecosystems

Using optimised otolith sectioning to determine the age, growth and age at sexual maturity of the herbivorous fish Kyphosus bigibbus: with a comparison to using scales

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