Use of space by Gobius cruentatus and Thorogobius ephippiatus (Teleostei: Gobiidae) in south-west Ireland

Wilkins, H. K. A.; Myers, Alan A.

doi:10.1007/bf00349143

Cited by 4 publications

(6 citation statements)

References 32 publications

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“…Similarly, the presence of highly mobile species, with large home ranges or territories and daily migration patterns, on the transect site may be temporary and therefore underestimated in the current study. Using diver observation as a measurement tool has also been found in previous studies to both attract and deter species (Chapman & Atkinson, 1986;Costello, 1992;Wilkins & Myers, 1995). The use of standardized measurement techniques, however, mean that inter-temporal and intraspecific differences in relative trends are valid.…”

Section: Discussionmentioning

confidence: 90%

“…Considerable numbers of 0+year-old C. rupestris were observed throughout the winter period and no significant relationship with seawater temperature was found. A number of studies have previously demonstrated the use of refuges and shelters during winter months by a number of species (Kotrschal, 1983) including C. rupestris, P. gunnellus (Sayer et al, 1994) and T. eppiphiatus (Sayer et al, 1994;Wilkins & Myers, 1995;Nickell & Sayer, 1998). Such a behavioural adaptation may be a thermoregulatory response to unfavourable physico-chemical conditions during winter (Reynolds & Casterlin, 1980).…”

Section: Discussionmentioning

confidence: 99%

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Seasonal and interannual variation in fish assemblages of northern temperate rocky subtidal habitats

Magill

Sayer

2002

Journal of Fish Biology

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Fish assemblages on two inshore rocky subtidal sites on the west coast of Scotland, were studied using diver visual surveys on a monthly basis between September 1995 and December 1999. A total of 17 689 fishes and 26 species were recorded from the two sites, Saulmore Point (056 27 N; 005 24 W) near Oban and Davy's Rock (055 46 N; 004 53 W) on the Isle of Great Cumbrae. The gobiid Thorogobius eppiphiatus, dominated the Saulmore Point site; six fish species accounted for >93% of total abundance at that site. At Davy's Rock four species contributed at least 93% of total fish abundance, and the dominant species was the labrid Ctenolabrus rupestris. Total abundance of the dominant species displayed a clear seasonal trend, and this was significantly related to recorded daily average seawater temperature. A maximum abundance of 4·9 fishes m 2 was recorded in November 1998 at Davy's Rock and 2·5 fishes m 2 at Saulmore Point in October 1998. Multivariate analysis indicated a degree of variation in assemblage structure between winter and summer at both sites. A number of species showed some degree of interannual variation, in particular the gobiid Gobiusculus flavescens whose abundance increased by over 300 times over a 5 month period in 1998. Correlation analysis showed that variation in annual winter seawater temperature could act as an indicator of interannual variation in abundance of some of the dominant species utilizing rocky subtidal habitats.

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Section: Discussionmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Seasonal and interannual variation in fish assemblages of northern temperate rocky subtidal habitats

Magill

Sayer

2002

Journal of Fish Biology

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“…Most showed some degree of site fidelity or shelter dependence, utilizing a home range or defending a shelter or feeding territory. Wilkins & Myers (1995) observed Thorogobius ephippiatus to maintain territories exclusive to conspecifics. Intraspecific aggression was observed between larger specimens of T. ephippiatus in the present study, but with some tolerance to smaller, presumably juvenile, individuals.…”

Section: Discussionmentioning

confidence: 94%

“…Benthic species present are often small and cryptic, whilst hyperbenthic species may only be transient occupants. Collection of data underwater on mobile epifauna, particularly fish and crustaceans, has been achieved in recent years mainly by the use of SCUBA (Main, 1987;Karnofsky et al, 1989;Carr, 1991; Turner & Warman, 1991;Costello, 1992;Sayer et al, 1993;Bruggemann et al, 1994;Wilkins & Myers, 1995;De Grave & Turner, 1997). However, using SCUBA limits the duration of the observation period and may influence behaviour of the study species (Chapman & Atkinson, 1986;Main, 1987;Costello, 1992).…”

Section: Introductionmentioning

confidence: 99%

Occurrence and Activity of Mobile Macrofauna on a Sublittoral Reef: Diel and Seasonal Variation

Nickell¹,

Sayer²

1998

J. Mar. Biol. Ass.

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Underwater television observations were made of mobile macrofauna inhabiting two parts of a sublittoral reef on the west coast of Scotland for 48 h periods in spring, summer, autumn and winter. Continuous occurrence profiles (mean hourly frequency of occurrence, %) were detailed for 12 species of fish (Chirolophis ascanii, Conger conger, Ctenolabrus rupestris, Lepadogaster candollei, Myoxocephalus scorpius, Pholis gunnellus, Pollachius pollachius, Raniceps raninus, Phrynorhombus regius, Zeugopterus punctatus, Thorogobius ephippiatus and Trisopterus minutus), ten crustacean species (Cancer pagurus, Carcinus maenas, Galathea strigosa, Homarus gammarus, Inachus spp., Munida rugosa, Necora puber, Brachyuran sp., Caridean sp. and Pagurid sp.) and four echinoderm species (Antedon bifida, Asterias rubens, Hemicia oculata and Solaster endeca). Rhythmic patterns of diel activity and/or occurrence were identified for several species. Chirolophis ascanii, Ctenolabrus rupestris, L. candollei, Myoxocephalus scorpius, Pholis gunnellus, Pollachius pollachius, Thorogobius ephippiatus, Trisopterus minutus and Munida rugosa were predominantly diurnal, but Ctenolabrus rupestris, Myoxocephalus scorpius and Trisopterus minutus also showed some evidence of crepuscular activity. Raniceps raninus activity was predominantly nocturnal but became continuous in summer. In other species (the topknots Phrynorhombus regius and Z. punctatus and the crustaceans Cancer pagurus and Homarus gammarus) identifiable occurrence patterns changed with season or site. The greatest number of fish species occurred in winter with Myoxocephalus scorpius, Pollachius pollachius and topknots (Phrynorhombus regius and Z. punctatus) showing greater occurrence/activity during spring and winter. Co-occurrence analysis was used to identify species interactions or avoidances.

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“…In addition, adaptation to microhabitats, territorial behaviour and differences in foraging ecology seem to be important factors enabling the co-existence of gobiid species (e.g. Hartney 1989;Wilkins & Myers 1995). According to Simonovic (1999), the Gobius speciation in the Ponto-Caspian realm (the former Central Paratethys) happened after the final break-up of the Paratethys during the late Miocene-early Pliocene, due probably to the then changing palaeoenvironment from brackish to freshwater.…”

Section: Discussionmentioning

confidence: 99%

Late Early Miocene lake deposits near Mauensee, central Switzerland: Fish fauna (otoliths, teeth), accompanying biota and palaeoecology

Jost¹,

Kälin²,

Schulz‐Mirbach

et al. 2006

Eclogae geol. Helv.

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The Mauensee section in the Molasse Basin of central Switzerland exposes a 3.7 m thick lacustrine sequence intercalated in marine siliciclastic deposits of the Upper Marine Molasse. From this sequence, which is Karpatian in age, a teleost fish fauna (otoliths, teeth) is described that consists of 15 species, including Cyprinidae, Mugilidae, Atherinidae, Cyprinodontidae, Gobiidae, and Channidae. In addition, charophytes, vascular plant remains, bivalves, gastropods, ostracods, amphibia, reptilia, and mammals are recorded. Palaeoecological analyses indicate that the fishes lived in a large, oligohaline, warm, and oligo-to mesotrophic lake with a water depth of five metres or more. Sedimentation rate estimates suggest that the lake existed for approximately 18.000 to 20.000 years. A remarkable enrichment of otoliths and teeth in the uppermost part of the lacustrine sequence is indicative of increased fish mortality, due perhaps to decreasing water-levels and seasonal occurrences of anoxic conditions. The persistence of a large lake in the Molasse Basin of central Switzerland during the Karpatian was certainly favoured by low sedimentation rates during this period of time. ZUSAMMENFASSUNGDas im Molassebecken der Zentralschweiz gelegene Mauensee-Profil schließt eine 3.7 m mächtige lakustrine Gesteinsfolge innerhalb der marinen siliziklastischen Sedimente der Oberen Meeresmolasse auf, die in das Karpatium zu stellen ist. Die Teleostei (Otolithen, Zähne) aus den lakustrinen Sedimenten werden beschrieben. Die Fischfauna umfasst 15 Arten, darunter Cyprinidae, Mugilidae, Atherinidae, Cyprinodontidae, Gobiidae und Channidae. Außer-dem wurden Charophyten, Reste höherer Pflanzen, Bivalvia, Gastropoden, Ostracoden, Amphibien, Reptilien und Säugetiere nachgewiesen. Die paläo-ökologische Interpretation lässt auf einen ausgedehnten, oligohalinen, warmen, oligo-bis mesotrophen See schließen, der eine Wassertiefe von mindestens fünf Metern erreichte. Die Kalkulation der Sedimentationsraten nach Literaturdaten weist auf einen Zeitraum von 18.000-20.000 Jahren für die Existenz des Gewässers hin. Im oberen Abschnitt der lakustrinen Gesteinsfolge ist eine extreme Anreicherung von Otolithen und Fischzähnen zu verzeichnen, die auf eine erhöhte Mortalitätsrate der Fische hinweist. Möglicherweise sind die Fischsterben auf ein Absinken des Wasserspiegels und damit verbundene saisonale anoxische Ereignissen zurückzuführen. Die Existenz eines ausgedehnten Sees im Molassebecken der Zentralschweiz während des Karpatium wurde vermutlich dadurch begünstigt, dass die Sedimentationsraten zu dieser Zeit sehr gering waren. ecosystems have not been documented to date from other regions of the Alpine Molasse Basin. Here we present the biota of a Karpatian lake located in the Molasse Basin of central Switzerland. The fish otoliths are described in detail, the remaining biota is listed in Table 1. Moreover, the palaeoecology of the lake ecosystem and unusual abundance of fish remains are discussed. The age of this lake was determined biostratigraphically...

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Use of space by Gobius cruentatus and Thorogobius ephippiatus (Teleostei: Gobiidae) in south-west Ireland

Cited by 4 publications

References 32 publications

Seasonal and interannual variation in fish assemblages of northern temperate rocky subtidal habitats

Seasonal and interannual variation in fish assemblages of northern temperate rocky subtidal habitats

Occurrence and Activity of Mobile Macrofauna on a Sublittoral Reef: Diel and Seasonal Variation

Late Early Miocene lake deposits near Mauensee, central Switzerland: Fish fauna (otoliths, teeth), accompanying biota and palaeoecology

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