Nearshore abundance of zooplankton in relation to shoreline configuration and mechanisms involved

Archambault, Philippe; Roff, John C.; Bourget, Edwin; Bang, Bohuyn; Ingram, Grant

doi:10.1093/plankt/20.4.671

Cited by 34 publications

(17 citation statements)

References 39 publications

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“…Comparative studies indicate that, in environments devoid of vegetation (non-vegetated), carnivorous and omnivorous species consume pelagic prey present in the water column (ANGEL; OJEDA, 2001). In addition, tidal mudflats are recognised as areas that are protected from wind and wave action, having calm waters that retain holo-and meroplankton (ARCHAMBAULT et al, 1998), which, in the present study, stood out as consumed prey. Table 4.…”

Section: Discussionmentioning

confidence: 64%

Trophic relationships among fish assemblages in a mudflat within Brazilian marine protected area

et al. 2015

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Pessanha et al.: Trophic relationships of fish assemblages 135 Trophic relationships among fish assemblages in a mudflat within Brazilian marine protected areaThe present study on the temporal variations in diet and the trophic guilds of dominant fish species in a tidal mudflat, during the dry and rainy seasons. We aimed at classifying the diet composition of 17 species in the Mamanguape river estuary, northeastern Brazil, identifying the dominant food components and evaluating the effects of seasonality on the guild organization. Diet varied little between species and seasons; during the rainy season, the diets seemed to be more heterogeneous. According to the importance of prey in the diets, 5 primary feeding guilds were identified: (1) Detritivore, (2) Zooplanktivore, (3) Zoobenthivore-epifaune, (4) Zoobenthivore-infaune, and (5) Piscivore. Most fishes fed on a diverse range of food items but relied heavily on the zooplankton preys. Several fish species showed a tendency for a specialised diet, with almost all species showing some degree of opportunistic feeding. A high degree of diet overlap was found among some species; however, the presence of exploitative competition could not be determined. AbstrAct

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Section: Discussionmentioning

confidence: 64%

Trophic relationships among fish assemblages in a mudflat within Brazilian marine protected area

et al. 2015

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“…the waters between the shore and a couple of kilometers to sea that have received comparatively little study by physical or biological oceanographers. There are a few examples of studies that have examined larvae in these very nearshore waters (Alldredge & Hamner 1980, Archambault et al 1998, Archambault & Bourget 1999, Shanks et al 2003b), but we are obviously at the very beginning of our work on this part of the ocean. Of particular importance to the onshore migration of competent larvae may be transport from the nearshore waters into and then across the surf zone.…”

Section: Discussionmentioning

confidence: 99%

Paradigm lost? Cross-shelf distributions of intertidal invertebrate larvae are unaffected by upwelling or downwelling

Shanks¹,

Shearman²

2009

Mar. Ecol. Prog. Ser.

124

126

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We tested the hypothesis that larvae of intertidal invertebrates are swept offshore during upwelling and shoreward during downwelling. During summer 2007, vertically stratified zooplankton samples and oceanographic data were collected at 7 stations located from 0.7 to 27 km from shore near Coos Bay, Oregon, USA. Half the sample dates (27 June and 14 August) were characterized by upwelling conditions (lines of constant temperature and salinity tilted upward, and a band of cold surface water was against the coast) and the other half (3 and 18 July) were characterized by downwelling or relaxation (lines of constant temperature and salinity were flat, and warm surface waters were in contact with the shore). We identified and staged larvae of Neotrypaea californiensis, Balanus glandula, B. nubilus, Chthamalus dalli, Pollicipes polymerus, and Semibalanus cariosus/B. crenatus and identified (to species or taxa level) Mytilus californianus, M. trossulus, Hiatella arctica, Dendraster excentricus, and pinnotherid and pagurid zoea. On all sample dates, all taxa and larval stages were rare in surface waters (0 to 10 m depth) and, with one exception (B. nubilus cyprids), were abundant at the 3 inshore stations (0.7 to 4.5 km offshore) and very rare or absent at seaward stations. The average distance offshore of all taxa and larval stages ranged from 0.9 to 4 km from shore and did not vary with upwelling and downwelling. Upwelling and downwelling had no effect on the cross-shelf distribution of the larvae of intertidal invertebrates; the hypothesis that upwelling carries larvae offshore and downwelling carries them back onshore was not supported.

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“…For headlands, the effects cited are of 2 broad categories: (1) the influence of headland wake on larval concentration and subsequent recruitment (Ebert & Russell 1988, Rankin et al 1994, and (2) the effect of differential exposure on headlands and its influence on predation rates (Menge 1978a,b). Studies on the effects of embayments have examined how they influence recruitment (Lagadeuc 1992, Sewell & Watson 1993, Archambault et al 1998) and the spatial variations in community richness within them (Hansen & Ingólfsson 1993, Rapoport 1994.…”

Section: Coastal Heterogeneitymentioning

confidence: 99%

Explaining mesoscale variation in intertidal mussel community structure

McKindsey

Bourget²

2000

Mar. Ecol. Prog. Ser.

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We examined how the recruitment and structure of intertidal mussel Mytilus edulis communities and a number of variables (phytoplankton concentration, mean and maximal wave forces, water flux, abrasion by ice, along-shore distance) vary among 4 size classes of embayments (straight coastlines, and embayments with mouth openings of 100, 250 and 400 m) at 12 sites over an apparently homogeneous 15.6 km stretch of coastline in the St. Lawrence estuary, Canada. Only species richness was influenced by embayment size such that mean richness was highest along linear coastlines. Despite larger within-site than among-site variation in community structure indices, significant correlations were found for community structure, recruitment and a number of other physical and biological variables (r 2 = 0.76, 0.20, 0.06, and 0.13 for recruitment, ShannonWeiner diversity calculated from abundance and biomass data, and richness, respectively), highlighting the importance of each of these factors to intertidal community structure. Overall, alongshore distance explained the highest proportion of variance for both recruitment (partial r 2 = 0.34) and diversity calculated from abundance data (partial r 2 = 0.11). The other variables explained varying portions of the total variance of these and other indices of community structure. Possible mechanisms relating the observed patterns in community structure to the various indices measured are discussed.

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Nearshore abundance of zooplankton in relation to shoreline configuration and mechanisms involved

Cited by 34 publications

References 39 publications

Trophic relationships among fish assemblages in a mudflat within Brazilian marine protected area

Trophic relationships among fish assemblages in a mudflat within Brazilian marine protected area

Paradigm lost? Cross-shelf distributions of intertidal invertebrate larvae are unaffected by upwelling or downwelling

Explaining mesoscale variation in intertidal mussel community structure

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