Diet as a mechanism of coexistence between intertidal fish species of the U.K.

Barrett, Chris J; Johnson, Magnus L.; Hull, Sue

doi:10.1007/s10750-015-2537-1

Cited by 9 publications

(13 citation statements)

References 19 publications

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“…The results suggest that the allopatric Dee Why population of B. cocosensis has a relatively stable trophic niche between seasons, whereas the two sympatric species vary between very low (c. 5%) and almost one-third (c. 30%) niche overlap in summer and winter, respectively. This is consistent with previous works, which have suggested that a higher diet niche plasticity is beneficial in a dynamic environment such as the intertidal zone (Barrett et al, 2016;Compaire et al, 2016;Grossman et al, 1980;Vinagre et al, 2018).…”

Section: Discussionsupporting

confidence: 93%

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Seasonal and developmental diet shifts in sympatric and allopatric intertidal gobies determined by stomach content and stable isotope analysis

Carbia

Brown

Park

et al. 2020

Journal of Fish Biology

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Resource partitioning facilitates the coexistence of sympatric species through spatial, temporal and/or trophic strategies. Fishes living in the intertidal zone demonstrate highly adaptive plastic behaviour, including resource partitioning, through spatial and temporal shifts in diet and microhabitat. Although intertidal fish assemblages are influenced by inter-and intraspecific competition, few studies have compared the extent of resource partitioning between sympatric species in the context of trophic niche plasticity. Here we used complementary approaches, stomach content and stable isotope (δ 13 C and δ 15 N) analyses, to evaluate seasonal and developmental shifts in trophic niche position in two sympatric (Favonigobius lentiginosus and Bathygobius krefftii) and one allopatric (Bathygobius cocosensis) species of intertidal goby. The results indicate that resource partitioning in the two sympatric species varied with season, with almost no trophic niche overlap in summer to about~30% overlap in winter. Also, evidence of dietary changes was found in B. cocosensis, which is likely associated with a shift in microhabitat and intraspecific competition. The findings highlight the temporal range of behavioural plasticity in trophic niche position of intertidal gobies, which likely has high adaptive value in the dynamic intertidal zone.

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Section: Discussionsupporting

confidence: 93%

“…30%) niche overlap in summer and winter, respectively. This is consistent with previous works, which have suggested that a higher diet niche plasticity is beneficial in a dynamic environment such as the intertidal zone (Barrett et al ., 2016; Compaire et al ., 2016; Grossman et al ., 1980; Vinagre et al ., 2018).…”

Section: Discussionmentioning

confidence: 99%

Seasonal and developmental diet shifts in sympatric and allopatric intertidal gobies determined by stomach content and stable isotope analysis

Carbia

Brown

Park

et al. 2020

Journal of Fish Biology

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“…Velasco et al (2010) found that co-occurrence of intertidal fish around the Gulf of Cadiz, Spain, was not affected by dietary overlap; prey availability was reported as being diverse and plentiful, resulting in reduced competition and less need of spatial segregation. This further supports the findings of Barrett et al (2016) who described species such as L. pholis and T. bubalis being able to coexist due to prey being plentiful and dietary traits being dissimilar, albeit with some small dietary overlap. Of course, it is possible that dietary traits were dissimilar as a result of the presence of one fish species to another; when coexisting, evidence suggests that species with generalist dietary traits tend to restrict their dietary range in the presence of potential dietary competitors (Bearzi, 2005).…”

Section: Introductionsupporting

confidence: 91%

“…Koop & Gibson (1991) conducted a study of distribution and movement of the butterfish ( Pholis gunnellus , Linnaeus, 1758) on an intertidal region of the west coast of Scotland and found that their distributions on the shore were not predicted by their size, but whether the same is true of other intertidal fish species, such as the frequently encountered L. pholis and T. bubalis , two sympatric species (Barrett et al , 2016), is currently uncertain. It is further uncertain as to their degrees of sympatricity with regard to whether two species coexist not only at shore level, but also in the same tidal pools and how multiple species utilize pools to sustain their coexistence.…”

Section: Introductionmentioning

confidence: 99%

Population dynamics of two sympatric intertidal fish species (the shanny, Lipophrys pholis and long-spined scorpion fish, Taurulus bubalis) of Great Britain

2016

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The shanny/common blenny (Lipophrys pholis) and long-spined scorpionfish/bullhead (Taurulus bubalis) are commonly encountered, sympatric species within much of Great Britain's rocky intertidal zones. Despite being prey items of the cod (Gadus morhua) and haddock (Melanogrammus aeglefinus) respectively, and both contributors to the diet of the near-threatened European otter (Lutra lutra), little is known on the population dynamics of the temperate specimens of Great Britain. It is further less known of the degrees of sympatricity between the two fish species and to what extent they are able to coexist. The current study examines spatio-temporal distributions and abundances at various resolutions: monthly population dynamics of both species along England's Yorkshire coast and seasonal population dynamics along the Yorkshire coast and around the Isle of Anglesey, Wales. Studies of their abundances, sizes, degrees of rock pool co-occurrence and diel activities are further examined, which indicate coexistence is maintained when interspecific co-occurrence takes place only between specimens of similar sizes, thus demoting size-related dominance hierarchies.

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“…Generally, the life cycle of intertidal fish species is very similar in terms of reproductive strategies: females spawning demersal adhesive eggs and males defending the nest (Oliveira et al, 1999;Mazzoldi et al, 2011), use of space and feeding behaviours (Nieder, 1997). The often syntopic nature of many intertidal fish communities suggests that resources such as food are shared and consequently that competition would increase where prey items are scarce (Barrett et al, 2015). In order to avoid competition among their offspring for food, shelter and space, spawning of fish species with common characteristics is temporally or spatially segregated (Tsikliras et al, 2010).…”

Section: Discussionmentioning

confidence: 99%

Reproduction and recruitment of sympatric fish species on an intertidal rocky shore

Compaire

Casademont

Gómez-Cama

et al. 2017

Journal of Fish Biology

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The reproductive cycle of seven common species (Gobius paganellus, Gobius bucchichi, Gobius cobitis, Parablennius sanguinolentus, Salaria pavo, Tripterygion tartessicum and Symphodus roissali) on rocky shores in the Gulf of Cadiz and their relationship with the sea surface temperature (SST) is analysed. Partial data on Scorpaena porcus are also given. Fecundity of these short lifespan species shows a positive linear correlation between the number of oocytes and an increase in female size. Spawnings are concentrated in the first 7 months of the year. An analysis of reproductive growth with respect to SST shows that water temperature in the winter months affects the timing of the onset of reproduction in most species. Recruitment is takes place throughout the year, but a temporal segregation within different families occurs in their spawning as well as recruitment.

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Diet as a mechanism of coexistence between intertidal fish species of the U.K.

Cited by 9 publications

References 19 publications

Seasonal and developmental diet shifts in sympatric and allopatric intertidal gobies determined by stomach content and stable isotope analysis

Seasonal and developmental diet shifts in sympatric and allopatric intertidal gobies determined by stomach content and stable isotope analysis

Population dynamics of two sympatric intertidal fish species (the shanny, Lipophrys pholis and long-spined scorpion fish, Taurulus bubalis) of Great Britain

Reproduction and recruitment of sympatric fish species on an intertidal rocky shore

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