Distribution and abundance of Donax serra Röding (Bivalvia: Donacidae) as related to beach morphology. I. Semilunar migrations

Donn, Theodore E.; Clarke, D.J.; McLachlan, Anton; Toit, Pieter Du

doi:10.1016/0022-0981(86)90171-1

Cited by 29 publications

(17 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The species of the genus Donax are rapid burrowing bivalves (Thayer, 1975;Donn et al, 1986;Ramón et al, 1995;Gaspar et al, 1999), whose compressed shape and regular shell surface facilitate burrowing into bottom sediments (Vermeij, 1978). These features can also contribute to deeper burrowing, which is particularly important to avoid potential predators and to consequently reduce mortality (Zaklan and Ydenberg, 1997).…”

Section: Relative Growthmentioning

confidence: 99%

“…In Portuguese waters, Donax trunculus is the most inshore wedge clam species, occurring up to a depth of 6 metres, with higher densities between 0 and 3 metres depth (Gaspar et al, 1999 This species can inhabit highly energetic environments on sandy beaches, where it is exposed to the tidal rhythm, intense wave action and sediment instability (Ansell, 1983;Brown and McLachlan, 1990). In these environments, Donax trunculus populations are capable of reaching very high densities, forming extensive and dense beds (Gaspar et al, 1999), and often being the dominant macrobenthic organism in communities characterised by a low specific diversity (Donn et al, 1986;Rámon et al, 1995). This dominance is due to its adaptation to actively exploiting these severe conditions rather than passively surviving their effects (Ansell, 1983).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Depth segregation phenomenon in <i>Donax trunculus</i> (Bivalvia: Donacidae) populations of the Algarve coast (southern Portugal)

Gaspar¹,

Chı́charo²,

Vasconcelos³

et al. 2002

Sci. Mar.

View full text Add to dashboard Cite

SUMMARY: A study was undertaken to evaluate the existence of depth segregation between size classes of Donax trunculus populations that occur along the Algarve coast (southern Portugal). Five collecting areas were sampled in the Ria Formosa barrier islands, namely in the Culatra, Barreta and Armona Islands, between March and June 1998. The study was based on size frequency distribution analysis and shell biometric relationships. The size frequency distribution showed the predominance of smaller individuals (<25 mm) in the renewal area (0.5-1.0 m depth) and the prevalence of larger individuals (≥25 mm) at greater depths (4.0-6.0 m depth). The biometric study revealed the existence of significant differences in the type of growth between size classes in relation to depth distribution and burrowing activity. On the basis of these results, some specific management measures were proposed for this important bivalve fishery, taking into account the distinct fishing strategies and operations (manual and boat-operated dredging) performed at different depths.

show abstract

Section: Relative Growthmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Depth segregation phenomenon in <i>Donax trunculus</i> (Bivalvia: Donacidae) populations of the Algarve coast (southern Portugal)

Gaspar¹,

Chı́charo²,

Vasconcelos³

et al. 2002

Sci. Mar.

View full text Add to dashboard Cite

show abstract

“…Concentration in cusps (spaced undulations of the beach face) has been documented in several sedentary filter feeders (Cubit 1969, Dillery & Knapp 1969, Perry 1980, McLachlan & Hesp 1984, Giménez & Yannicelli 2000. Sorting by cusp swash circulation tended to concentrate less motile forms in the bays, where patches were composed of more small individuals compared to those on promontories (Donn et al 1986, James 1999. Small organisms living close to the sand surface are subject to greater rates of dislodgement and movement by swash action from promontories to bays than large organisms (James 1999).…”

Section: Alongshore Distributionmentioning

confidence: 99%

Patterns, processes and regulatory mechanisms in sandy beach macrofauna: a multi-scale analysis

Defeo

McLachlan²

2005

Mar. Ecol. Prog. Ser.

415

328

View full text Add to dashboard Cite

show abstract

“…Particularly in habitats affected by strong waves and/or currents, the importance of the role of passive transport has been recognized in determining the distributions of several macrofaunal species such as molluscs (Matthiessen 1960, Gilbert 1968, Edwards 1969, Thompson 1982, Donn et al 1986), polychaetes (Dales 1952, Reise 1981, Brown 1982, McDermott 1983, peracarid crustaceans (Fincham 1970, Grant 1980 and an echinoderm (Mukai et al 1986).…”

Section: Introductionmentioning

confidence: 99%

Comparison of resistivity to transport by wave action in several polychaete species on an intertidal sand flat

Tamaki¹

1987

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Passive transport by waves and tidal inflow currents was examined as one of the physical factors determining the distribution of adults of 5 polychaete species -Armandia sp. (family Opheludae), S p~o filicornis (Miiller) (fam. Spionidae), Rhynchospio glutaea (Ehlers) (fam. Spionidae), Nephtys polybranchia Southern (fam. Nephtyldae), Scoloplos uschakovi Wu (fam. Orbiniidae) -inhabiting an intertidal sand flat in west Kyushu, Japan. On the tidal flat, the year can be divided into 2 periods due to seasonally changing wind direction: a period of large waves from autumn to spring and a calm period during summer. A significant landward shift of the adult distribution center was observed only for the overwintering population of Armandia sp.; this could be ascribed to passive transport of individuals by large incoming waves based on the results of a trapping experiment in the field. Armandia's shallow-dwelling position below the sediment-water interface (within 1 cm), inability to adhere to large materials, and habit of curling up in a circle when disturbed by waves are considered to be the main causes of its susceptibility to large waves. Adults of Spio filicornis, R. glutaea and N. polybranchia can reach the deeper layers in the sediment (5 to 10 cm), and may hence be less affected by wave action. This also applies to S. schakovi adults, but even juveniles of this species, w h c h occur in the shallow layers of the sediment (withln 1.4 cm), were resistant to wave disturbance. One reason may be that their windinq abdomen acts as an anchor in the sediment.

show abstract

Distribution and abundance of Donax serra Röding (Bivalvia: Donacidae) as related to beach morphology. I. Semilunar migrations

Cited by 29 publications

References 15 publications

Depth segregation phenomenon in <i>Donax trunculus</i> (Bivalvia: Donacidae) populations of the Algarve coast (southern Portugal)

Depth segregation phenomenon in <i>Donax trunculus</i> (Bivalvia: Donacidae) populations of the Algarve coast (southern Portugal)

Patterns, processes and regulatory mechanisms in sandy beach macrofauna: a multi-scale analysis

Comparison of resistivity to transport by wave action in several polychaete species on an intertidal sand flat

Contact Info

Product

Resources

About