Feeding ecology of juvenile flatfishes of the surf zone of a sandy beach

Beyst, Bregje; Cattrijsse, A.; Mees, Jan

doi:10.1111/j.1095-8649.1999.tb02068.x

Cited by 102 publications

(66 citation statements)

References 29 publications

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“…Polychaetes and detritus were important food items for only limited fish species, as already determined by previous studies (Lasiak, 1984;Robertson and Lenanton, 1984;DeLancey, 1989;Beyst et al, 1999), although both item categories were consumed by several units (22% and 7% of the total, respectively). This observation is in contrast to the tidal mudflat habitat, where polychaetes and detritus are major food items (Kanou et al, 2004).…”

Section: Discussionmentioning

confidence: 86%

Food habits of fishes in the surf zone of a sandy beach at Sanrimatsubara, Fukuoka Prefecture, Japan

2005

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To clarify the feeding habits of fishes in surf zones, the gut contents of 19 fish species collected in the surf zone of a sandy beach at Sanrimatsubara, western Japan, were examined. Ontogenetic changes in food preference were recognized in seven species (Mugil cephalus cephalus, Lateolabrax latus, Sillago japonica, Paralichthys olivaceus, Paraplagusia japonica, Takifugu poecilonotus, and Takifugu niphobles). A cluster analysis based on dietary overlaps showed that the surf zone fish assemblage comprised six trophic groups (zooplankton, benthic and epiphytic crustacean, detritus, polychaete, fish, and insect feeders). Of these, the most abundant trophic group was zooplankton feeders, along with benthic and epiphytic crustacean feeders.Key words Fish assemblage · Trophic guild · Ontogenetic diet shift · Surf zone on the northern coast of Fukuoka Prefecture, Kyushu Island, Japan (Fig. 1). It is approximately 10 km long, being geographically open (sensu Tokioka et al., 1972), and is bounded on the western end by rocky shores and on the eastern end by the Onga River. The beach type of Sanrimatsubara is classified as intermediate, with a transverse bar and frequent rip current, according to the beach morphodynamic state classification proposed by Short and Wright (1983).Fishes were sampled with fine-meshed (1 mm ϫ 1 mm square mesh, 5 m wide and 1 m deep with a 1.5-m-long central purse-bag) and coarse-meshed (4 mm ϫ 4 mm square mesh, 26 m wide and 2 m deep with a 3-m-long central pursebag) beach seines. The former was pulled perpendicular to the shoreline starting at 25 m offshore (water depth of approximately 1.0 m) by two persons. The latter was laid by hand as follows: one end of the net was fixed at the water's edge and the other end was first pulled 25 m offshore (water depth of approximately 1.0 m) perpendicular to the shoreline, then 15-20 m parallel to the shore, and finally to the shoreline. Sampling was conducted at flood tide between 0900 and A total of 889 individuals representing 35 species were collected (Table 1). Nineteen fish species, each including at least 5 individuals containing food, were subjected to gut content analyses, fewer than 5 individuals being considered inadequate for realistic food item representation (Nakamura et al., 2003). Food items in the gut contents of each specimen were identified to the lowest possible taxon and the percentage volume (%V) of each in the diet visually IchthyologicalResearch

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Section: Discussionmentioning

confidence: 86%

Food habits of fishes in the surf zone of a sandy beach at Sanrimatsubara, Fukuoka Prefecture, Japan

2005

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“…More generally, it is recognized that juvenile flatfish consume the most abundant food resources in a generalistic and opportunistic manner (e.g. Beyst et al, 1999;Amara et al, 2001), which strongly reduces their potential for competition in highly productive systems such as estuarine habitats. We found that the abundance of the macrobenthos was higher in the Seine estuary and not significantly different from the other two estuaries.…”

Section: Discussionmentioning

confidence: 99%

Growth and condition of 0-group European flounder, Platichthys flesus as indicator of estuarine habitat quality

Amara

Selleslagh

Billon³

et al. 2009

Hydrobiologia

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The purpose of this present study was to use the growth rates, RNA-DNA ratio and morphometric (Fulton's K) condition indices measured on 0-group juveniles European flounder, as a means of comparing the quality of estuarine nursery habitats. The Seine estuary, heavily impacted by manmade modifications and one of the most contaminated in Europe, was compared to two smaller estuaries considered as clean (low domestic, agricultural and industrial effluents). Indicators of human disturbance (sediment chemical contaminants) as well as biotic data (macrobenthos abundances) were used to establish between-site differences in environmental quality. The abundance of macrobenthos (potential preys for juvenile) was high and not significantly different among the three estuaries confirming the important role played by estuaries as feeding grounds. Sediment metal concentrations (Cd, Cr, Cu, Pb, Zn) were significantly higher in the Seine than in the Canche and Authie estuaries. Otolith growth was closely related to somatic fish growth, and we used daily otolith increments from the previous 10 days before capture as an indicator of 0-group flounder recent growth (RG). RG did not vary significantly among flounders from the Canche and Authie estuaries and individuals from the Seine had slower RG. RNA-DNA ratio and K values were also significantly lower in individuals from the Seine compared to those of the Authie or the Canche. Pollution (e.g. metal contaminants) is the most likely cause of growth and condition differences among estuaries. The results of this study suggest that habitat-specific fish growth and condition are useful proxies for habitat quality since they integrate the effect of multiple environmental factors.

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“…Al though the reasons are not clear, sole may avoid interspecific competition by spatial and temporal feeding activities (Besyst et al 1999), for instance, taking advantage of its capacity to forage during the night as opposed to plaice and flounder, which are daytime feeders (Lagar dère 1987, Besyst et al 1999.…”

Section: Habitat Quality Of Flatfish Nursery Areasmentioning

confidence: 99%

Latitudinal trends in habitat quality of shallow‑water flatfish nurseries

Freitas¹,

Kooijman²,

Veer³

2012

Mar. Ecol. Prog. Ser.

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The habitat quality of European shallow-water nurseries was studied for 3 common flatfish species based on juvenile growth conditions. Field growth of 0-group plaice Pleuronectes platessa, flounder Platichthys flesus and sole Solea solea, from both published and unpublished studies, was compared with maximum growth predicted by a bioenergetics model based on the dynamic energy budget theory. In plaice and flounder, realized growth ratio decreased consistently during the growing season in most of the nurseries analyzed, indicating a widespread pattern of declining conditions. In sole, growth performance was not maximal, but as opposed to the other species, no clear temporal trend in realized growth ratio was observed. A latitudinal comparison of realized growth ratio over the various nurseries indicated clear positive trends for plaice and flounder, with better growth conditions at northern latitudes. In sole, despite some variability, the same trend was found during part of the summer. In the absence of clear gradients in benthic prey biomass, we hypothesize that increased food limitation in southern locations is most likely caused by interspecific competition reducing maximum individual intake rates. These results suggest that, in the context of global warming, habitat quality of southern European nurseries for juvenile growth may be particularly affected by the combined interaction of food and thermal constraints.

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Feeding ecology of juvenile flatfishes of the surf zone of a sandy beach

Cited by 102 publications

References 29 publications

Food habits of fishes in the surf zone of a sandy beach at Sanrimatsubara, Fukuoka Prefecture, Japan

Food habits of fishes in the surf zone of a sandy beach at Sanrimatsubara, Fukuoka Prefecture, Japan

Growth and condition of 0-group European flounder, Platichthys flesus as indicator of estuarine habitat quality

Latitudinal trends in habitat quality of shallow‑water flatfish nurseries

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