Trophic relationships, feeding habits and seasonal dietary changes in an intertidal rockpool fish assemblage in the Gulf of Cadiz (NE Atlantic)

Compaire, Jesus C.; Cabrera, Remedios; Gómez-Cama, Carmen; Soriguer, Milagrosa C.

doi:10.1016/j.jmarsys.2016.02.006

Cited by 17 publications

(19 citation statements)

References 32 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%

“…The sympatric B. krefftii and F. lentiginosus exhibited some overlap in prey preference, but stomach content and isotope analyses suggested some seasonal resource partitioning. Seasonal micro-niche partitioning is common in temperate intertidal fishes (Compaire et al, 2016;Davis, 2000;Grossman et al, 1980;Zander, 1990), and we suggest that the seasonal diet discrepancies in F. lentiginosus and B. krefftii may be explained by seasonal habitat partitioning and opportunistic foraging in rockpools by B. krefftii in summer. During this time, the most common prey type consumed by B. krefftii was algae and chironomid larvae, the latter of which occur in high abundances in intertidal rockpools during warmer months of the year (Colbo, 1996).…”

Section: Discussionmentioning

confidence: 71%

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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%

Section: Discussionmentioning

confidence: 71%

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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“…Regarding spatial segregation, reduction of interspecific competition could also be related to other factors such as microhabitat preferences of recruits, juveniles and adults and therefore, more studies evaluating microhabitat segregation are needed to test the importance of habitat complexity. On the other hand, absence of feeding niche overlap has already noted in this fish community at any stage of their life cycles (Compaire et al, ).…”

Section: Discussionmentioning

confidence: 99%

“…The present study examined the reproduction of Gobius paganellus L. 1758, Gobius bucchichi Steindachner 1870, Gobius cobitis Pallas 1814, Parablennius sanguinolentus (Pallas 1814), Salaria pavo (Risso 1810), Tripterygion tartessicum Carreras‐Carbonell et al, [previously identified as Tripterygion tripteronotum and mentioned as such in Compaire et al, ] and Symphodus roissali (Risso 1810). Although intertidal fish species exhibit diverse reproductive modes (Balon, ), all the families analysed in this study are oviparous (Gobiidae: Miller, ; Blenniidae: Patzner, ; Tripterygiidae: Berger & Mayr, ; Labridae: Potts, ).…”

Section: Introductionmentioning

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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“…Estos peracáridos han sido señalados como un componente trófico importante en los contenidos estomacales de áridos en varias lagunas costeras en el sur del Golfo de México, como Pueblo Viejo, Términos y Celestún (Lara- Domínguez et al, 1981;Vega-Cendejas, 1990;Mojica, 2007), lo cual concuerda con los resultados de este estudio, ya que fue un componente alimentario dominante en las cuatro clases de tallas. Además, los tanaidáceos son comunes en la dieta de otras especies de peces (Kneib, 1992;D´Aguillo et al, 2014;Compaire et al, 2016). Este elevado consumo de tanaidáceos en los cuatro intervalos de clase en la laguna Mecoacán representa la oportunidad de comprobar la hipótesis sobre la función de C. aguadulce como regulador de los detritívoros distribuidos en sustratos suaves sin vegetación, en donde hay una elevada disponibilidad de materia orgánica disuelta y particulada, aportada en parte por el manglar en laguna Mecoacán y en otros sistemas estuarinos en el sur del Golfo de México.…”

Section: Categoríaunclassified

Feeding Habits of Cathorops aguadulce (Siluriformes: Ariidae) in an Estuarine System in the Southern Gulf of Mexico

Araujo¹

2017

Hidrobiológica

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Antecedentes. La distribución y dieta de los peces, así como la composición específica de sus presas, ha sido afectada por la intensificación de las variaciones espaciales de la salinidad debido a la infraestructura hidráulica y cambio climático. Cathorops aguadulce se seleccionó por los registros previos de su dieta y su actual dominancia en los sistemas estuarinos del sur del Golfo de México. Objetivos. La dieta fue evaluada en relación con las variaciones de su composición por tallas, día-noche y estacionales en la laguna Mecoacán. Métodos. Doscientos diez tractos digestivos se analizaron entre juveniles y adultos capturados en un muestreo que incluyó la variación diurna-nocturna y estacional en tres localidades ubicadas en un gradiente de salinidad. La composición por tallas se correlacionó (coeficiente de Spearman) con la variación espacial y temporal de la salinidad y la temperatura. La variación temporal y espacial de los índices de repleción (IR) y de importancia relativa (IIR) se analizó mediante la prueba Kruskal-Wallis y agrupamiento jerárquico. Resultados. La composición por tallas fue independiente a la variación de la salinidad y al índice de repleción (Kruskal-Wallis; p =0.649), pero la intensidad de la dieta en sequía fue significativamente mayor que en las temporadas de transición y lluvias (Kruskal-Wallis; p =0.00001). Entre los 11 ítems alimenticios definidos, el detrito animal y los malacostracos, principalmente tanaidáceos, fueron las categorías alimenticias dominantes por frecuencia de ocurrencia e IIR. Sin embargo, el detrito predominó en juveniles, mientras que los tanaidáceos fueron el ítem preponderante en los adultos. Conclusiones. Aunque la laguna Mecoacán registró una amplia variación de la salinidad y C. aguadulce presentó una variación temporal significativa en su intensidad de dieta, la deriva ontogénica fue más determinante que los efectos de la variación ambiental en sus hábitos alimenticios. Esta conclusión abre la posibilidad de comprobar si la variación ontogenética de sus rasgos morfométricos funcionales está asociada con la adquisición de alimento y movimiento.

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Trophic relationships, feeding habits and seasonal dietary changes in an intertidal rockpool fish assemblage in the Gulf of Cadiz (NE Atlantic)

Cited by 17 publications

References 32 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

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

Feeding Habits of Cathorops aguadulce (Siluriformes: Ariidae) in an Estuarine System in the Southern Gulf of Mexico

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