The effect of the quality of food patches on larval vertical distribution of the sea urchins Lytechinus variegatus (Lamarck) and Strongylocentrotus droebachiensis (Mueller)

Burdett-Coutts, Victoria; Meta×as, Anna

doi:10.1016/j.jembe.2004.02.023

Cited by 34 publications

(18 citation statements)

References 24 publications

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“…Some invertebrate larvae have been observed to alter their swimming behaviour in response to the presence and quality of food patches (Raby et al, 1994;Metaxas and Young, 1998b;Burdett-Coutts and Metaxas, 2004). In this study, although there was no significant correlation, a similar trend in vertical distribution between polychaete larvae and Chl a concentration was observed in several months ( fig.…”

Section: Vertical Distribution Of Planktonic Polychaete Larvaesupporting

confidence: 59%

Vertical distribution and migration of planktonic polychaete larvae in Onagawa Bay, north-eastern Japan

Abe¹,

Sato-Okoshi²,

Nishitani³

et al. 2014

Mem. Mus. Vic.

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Abe, H., Sato-Okoshi, W., Nishitani, G. and Endo, Y. 2014. Vertical distribution and migration of planktonic polychaete larvae in Onagawa Bay, north-eastern Japan. Memoirs of Museum Victoria 71: 1-9.The planktonic larvae of polychaetes are one of the most numerous and diverse groups in coastal zooplankton; however, little is known about their larval dynamics and the factors that affect their vertical distribution. We investigated the vertical distribution and migration of planktonic polychaete larvae in Onagawa Bay, north-eastern Japan, particularly focusing on the dominant spionid larvae. In total, 14 families of planktonic polychaete larvae and 14 species or genera of spionid larvae were identified during our study. Their density greatly fluctuated according to season and depth, with the polychaete larvae generally distributed in the lower layers of the water column. Furthermore, trends in vertical distribution of spionid larvae varied between species. In winter and spring, larvae of Polydora onagawaensis were the most prevalent, with a wide range in vertical distribution. In summer and autumn, larvae of Pseudopolydora achaeta and Prionospio spp. were the most prevalent spionid larvae and were primarily distributed in the lower layers of the water column. Trends in larval vertical distribution varied as a result of differences in adult habitat; these variations would enable the larvae to efficiently recruit into their appropriate adult habitats. Spionid larvae did not show diel vertical migration. Larvae of two spionid taxa, Pseudopolydora achaeta and Prionospio spp., exhibited tidal vertical migration, with larvae appearing to avoid dispersal by moving to slower-flowing deeper water during flood and ebb tides. Although many previous studies assume that, because of their limited swimming capacity, polychaete larvae are passively dispersed within the water column, this study indicates that polychaete larvae can control their vertical distribution to some extent, and this smallscale vertical migration may be important as a retention mechanism for polychaete larvae.

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Section: Vertical Distribution Of Planktonic Polychaete Larvaesupporting

confidence: 59%

Vertical distribution and migration of planktonic polychaete larvae in Onagawa Bay, north-eastern Japan

Abe¹,

Sato-Okoshi²,

Nishitani³

et al. 2014

Mem. Mus. Vic.

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“…For example, larval asteroids swim upwards and remain in the upper layers of the water column (Sameoto & Metaxas 2008b, Daigle & Metaxas 2011, and remain below a discontinuity when temperatures above the thermocline exceed 24°C (Daigle & Metaxas 2011) or the halocline is strong (ΔS > 8) (Sameoto & Metaxas 2008b). Our observation that planktotrophic herbivores aggregated around or within the fluorescence maximum in the field can be explained by behaviours observed in the laboratory (Metaxas & Young 1998, Burdett-Coutts & Metaxas 2004, Sameoto & Metaxas 2008b. For example, in the laboratory, bivalves migrate towards food when it is present (Sameoto & Metaxas 2008b).…”

Section: Linking Behavioural Responses To Field Vertical Distributionsmentioning

confidence: 70%

Patterns in vertical distribution and their potential effects on transport of larval benthic invertebrates in a shallow embayment

Lloyd¹,

Meta×as²,

deYoung³

2012

Mar. Ecol. Prog. Ser.

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Measurements of larval vertical distributions at high temporal and spatial resolutions as well as larval behavioural responses to environmental characteristics are needed to parameterize bio-physical models of larval dispersal or transport. We studied larval vertical distribution for 7 taxonomic groups (gastropods, bivalves, polychaetes, bryozoans, asteroids, carideans and brachyurans), with different morphology, swimming abilities and life-history strategies, and examined whether these vary with physical or biological factors and periodic cycles (diel period and tidal state) in the field. Using a pump, we collected plankton samples at 6 depths (3, 6, 9, 12, 18 and 24 m), over a 36 and a 26 h period. Temperature, salinity, fluorescence and current velocity were measured concurrently. Larval vertical distribution varied among taxonomic groups, but 4 patterns could be distinguished: (1) larvae exclusively in the mixed layer (asteroids), (2) larvae predominantly below the thermocline, halocline and pycnocline (gastropods, bivalves, polychaetes), (3) larvae associated predominantly with the fluorescence maximum (bryozoans and carideans) and (4) larval distribution varying dielly (gastropods, polychaetes, carideans and brachyurans). Based on flow velocities and depending on distribution, asteroid larvae were likely to be transported farther than those of bryozoans and carideans, while direction and magnitude of transport varied for the other larvae. For most taxonomic groups, behaviour observed in the field agreed with measured laboratory responses to relevant cues. For asteroids and bivalves, simple beha vioural parameters can be generated that can be utilized to improve the accuracy of biophysical models.KEY WORDS: Vertical migration · Temperature · Fluorescence · Diel period · Water column structure · Larval behavior · Larval transport · Biophysical model parameters Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 469: [37][38][39][40][41][42][43][44][45][46][47][48][49][50][51][52] 2012 Horizontal currents can ad vect larvae of coastal species offshore, leading to failure of recruitment to nearshore habitats (Shanks 1995).Meroplankton are capable of movement against vertical currents, as their swimming or sinking speeds are greater than weak vertical current velocities (0.1 cm s −1 ) (Chia et al. 1984, Metaxas 2001. Larval movement between layers of different velocities can alter the horizontal direction and magnitude of larval transport and dispersal (DiBacco et al. 2001, Metaxas 2001. Through changes in buoyancy or propulsion by ciliary or muscular activity, some crustacean and bivalve larvae can cover large distances vertically, in some cases many times a day (Cronin & Forward 1986, dos Santos et al. 2008. Larval movement can possibly be triggered through an innate behavioural response to physical and/or chemical stimuli. Consequently, sensory detection of the environment can potentially affect larval direction of movement and/or swimming be haviour (...

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“…While they are thought to display an ability to swim close to parental habitats to a certain extent, most marine invertebrate larvae are weak swimmers and act as passive particles on horizontal scales (Abelson and Denny 1997;Burdett-Coutts and Metaxas 2004). Hence, it is important to know their "hydrodynamic limit" in order to predict their dispersal under the diVerent physical conditions that larvae may encounter.…”

Section: Introductionmentioning

confidence: 99%

Dispersal strategies in sponge larvae: integrating the life history of larvae and the hydrologic component

et al. 2006

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While known to be uniformly non-feeding, short-lived, and potentially short dispersing, sponge larvae display different behaviours (swimming ability and taxis). Our aim was to show whether sponge larvae with different behaviours exhibit different dispersal strategies under variable intensity of water movements. We first assessed the distribution of larvae of six taxa: Dictyoceratida spp., Dysidea avara, Crambe crambe, Phorbas tenacior, Scopalina lophyropoda, and Cliona viridis, collected through plankton sampling, and the abundance of the corresponding adult sponges across three hard bottom communities and a sandy bottom from a north-west Mediterranean rocky shore. We then tested adult-larvae couplings (abundance of larvae vs abundance of adults) under increasing levels of water movements (surge) to assess the importance of this environmental factor in driving differences in dispersal strategies. Adults of Dictyoceratida spp., D. avara, and P. tenacior were most abundant in semi-dark caves (SDC), C. crambe and C. viridis in communities of sciaphilic algae (SA), whereas the distribution of S. lophyropoda was extremely patchy, being present almost only in the SA community of one of the five stations studied. Larvae of Dictyoceratida spp. and P. tenacior were more abundant in the SDC, whereas D. avara and C. crambe were homogeneously distributed across the communities. The larvae of C. viridis were more abundant in the SA communities and the S. lophyropoda larvae were mostly present in one station and one community (SA). Increased water movement did not modify the adult-larvae coupling for Dictyoceratida spp., D. avara, and C. crambe, whereas it broke up the positive association for P. tenacior and to some extent S. lophyropoda. For C. viridis, possible variability in adult-larvae coupling was not tested because the larvae were collected on only one day under calm sea conditions. We confirm that efficient-swimming larvae with some cue response can actively counteract hydrodynamic forces and highlight the importance of both larval behaviour and environmental conditions in determining small-scale patterns of dispersal.

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The effect of the quality of food patches on larval vertical distribution of the sea urchins Lytechinus variegatus (Lamarck) and Strongylocentrotus droebachiensis (Mueller)

Cited by 34 publications

References 24 publications

Vertical distribution and migration of planktonic polychaete larvae in Onagawa Bay, north-eastern Japan

Vertical distribution and migration of planktonic polychaete larvae in Onagawa Bay, north-eastern Japan

Patterns in vertical distribution and their potential effects on transport of larval benthic invertebrates in a shallow embayment

Dispersal strategies in sponge larvae: integrating the life history of larvae and the hydrologic component

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