Ontogeny of phototaxis and geotaxis during larval development of the sabellariid polychaete Phragmatopoma lapidosa

McCarthy, Daniel A.; Forward, Richard B.; Young, Craig M.

doi:10.3354/meps241215

Cited by 24 publications

(15 citation statements)

References 19 publications

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“…4d) in the sediment in May compared to April also point towards a release of organic matter from the ice into the water column and sediment at the end of May, similar to that reported by Horner and Schrader (1982). On the other hand, polychaete juveniles might have out-grown the brine channel diameters by late May (Krembs et al 2000), forcing them out of the sea ice, or they may have changed to negative phototaxis (McCarthy et al 2002). Although we did not measure the juvenile polychaetes, we observed that the majority were larger by late spring.…”

Section: Seasonal Development Of Ice Biota Through a Spring Bloom Cycsupporting

confidence: 73%

“…While counting the samples, we observed positive phototactic behavior of the polychaete juveniles, known from several polychaete species (e.g. McCarthy et al 2002). This provides a mechanism for moving from the plankton into the brighter sea ice, a change from a meroplanktonic life style to one we define analogously as merosympagic.…”

mentioning

confidence: 75%

“…McCarthy et al (2002) reported ontogenetic changes in the phototaxis of meroplanktonic polychaete larvae. One day old larvae were positively attracted, while older larvae (28 d) responded negatively to light.…”

Section: Impact Of Sediment Load On the Sympagic Regimementioning

confidence: 99%

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Pivotal role of sea ice sediments in the seasonal development of near-shore Arctic fast ice biota

Gradinger

Kaufman²,

Bluhm³

2009

Mar. Ecol. Prog. Ser.

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) under both clean and sediment-laden ice. With increasing ice algal biomass, the δ 13 C ratio of sea ice particulate organic matter (POM) in clean ice increased from -25 ‰ in February to -16 ‰ in May, while no and little enrichment was observed in sediment-laden ice and pelagic POM, respectively. The abundance of ice metazoans in clean ice increased with progressing season from 17 700 (Feb) to 276 200 ind. m -2 (May), dominated by nematodes and ice-associated polychaete juveniles. In sediment-laden ice, maximum abundance was 16 600 ind. m -2 (May). Abundances of meroplanktic polychaete juveniles were at least one order of magnitude below abundances in the ice, suggesting sea ice is an important feeding habitat for these young life stages. Sediment within the ice had a profound impact on sea ice biota, and delayed or inhibited the spring bloom development.KEY WORDS: Arctic sea ice · Sea ice sediments · Ice algae · Ice fauna · Particulate organic carbon · POC · Particulate organic nitrogen · PON · Stable isotope ratio Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 394: [49][50][51][52][53][54][55][56][57][58][59][60][61][62][63] 2009 The dominance of the light regime in regulating primary production in sea ice is well documented from field and laboratory experiments (e.g. Gradinger et al. 1991, Arrigo 2003, Gradinger 2009). For ice algal growth, major abiotic modifiers of available light are seasonality, ice thickness and snow cover (Maykut 1985). Only recently has sediment, incorporated within the ice, been studied with regard to its ability to modify the albedo and attenuation properties of sea ice (Light et al. 1998). Sediment occurs in concentrations above 100 g m -2 in Arctic sea ice (e.g. Nürnberg et al. 1994), and such sediment-rich patches are particularly common in the Chukchi and Beaufort Seas (Barnes et al. 1982, Osterkamp & Gosink 1984, Eicken et al. 2005, forming so-called 'dirty ice' or 'sediment-laden ice'. Up to 50% of the entire Arctic ice cover can contain visually detectable amounts of sediment (Pfirman et al. 1989, Reimnitz et al. 1993, Nürnberg et al. 1994, which is transported across the offshore Arctic with the ice drift.Sea ice sediments located in the top 20 to 30 cm of the ice alter the spectral albedo, whereas total sediment load affects light transmission (Light et al. 1998). Osterkamp and Gosink (1984) observed, for example, about 10-fold higher attenuation coefficients for sediment-laden fast ice compared to clean ice. Previous studies have demonstrated that modulation of light by snow cover is a major factor responsible for horizontal patchiness in sea ice physical and biological variables (e.g. Gosselin et al. 1986, Grossi et al. 1987, Steffens et al. 2006. In this study, we hypothesized that sea ice sediment load should also have a pronounced effect on the seasonal development of sea ice biota due to its alteration of the light regime. We expected significantly higher maximum biomass values for ice algae and higher sea ice meiof...

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Section: Seasonal Development Of Ice Biota Through a Spring Bloom Cycsupporting

confidence: 73%

mentioning

confidence: 75%

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Pivotal role of sea ice sediments in the seasonal development of near-shore Arctic fast ice biota

Gradinger

Kaufman²,

Bluhm³

2009

Mar. Ecol. Prog. Ser.

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“…There were clear ontogenetic changes in phototaxis observed in this study that were similar to those reported in other aquatic organisms such as mussels (Dobretsov & Miron 2001) and polychaetes (McCarthy et al 2002). The leptocephalus larvae lost their strong negative phototaxis during the advanced metamorphosing stage.…”

Section: Mechanism Of Diel Vertical Migrationsupporting

confidence: 70%

Ontogenetic changes in phototactic behavior during metamorphosis of artificially reared Japanese eel Anguilla japonica larvae

Yamada¹,

Okamura²,

Mikawa³

et al. 2009

Mar. Ecol. Prog. Ser.

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“…Despite the prevalence of positive phototaxis in larvae [1] and observations of positive phototaxis in younger oyster larvae [6], light had no observable effect on vertical swimming direction of our late-stage oyster larvae, suggesting an ontogenic shift in phototaxis. Ontogenic changes in phototaxis have been widely documented in larvae of eels [144], polychaetes [138,145], crabs [146], mussels [26], nudibranchs [147], conch [148], and both larval and juvenile sole [149]. Competent larvae may cease to display positive phototaxic behavior because they no longer need to stay afloat in the water column.…”

Section: Discussionmentioning

confidence: 99%

Behavioral responses of invertebrate larvae to water column cues

Wheeler¹

2016

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Many benthic marine invertebrates have two-phase life histories, relying on planktonic larval stages for dispersal and exchange of individuals between adult populations. Historically, larvae were considered passive drifters in prevailing ocean currents. More recently, however, the paradigm has shifted toward active larval behavior mediating transport in the water column. Larvae in the plankton encounter a variety of physical, chemical, and biological cues, and their behavioral responses to these cues may directly impact transport, survival, settlement, and successful recruitment.In this thesis, I investigated the effects of turbulence, light, and conspecific adult exudates on larval swimming behavior. I focused on two invertebrate species of distinct morphologies: the purple urchin Arbacia punctulata, which was studied in pre-settlement planktonic stages, and the Eastern oyster Crassostrea virginica, which was studied in the competent-to-settle larval stage. From this work, I developed a conceptual framework within which larval behavior is understood as being driven simultaneously by external environmental cues and by larval age.As no a priori theory for larval behavior is derivable from first principles, it is only through experimental work that we are able to access behaviors and tie them back to specific environmental triggers. In this work, I studied the behavioral responses of larvae at the individual level, but those dynamics are likely playing out at larger scales in the ocean, impacting population connectivity, community structure, and resilience. In this way, my work represents progress in understanding how the ocean environment and larval behavior couple to influence marine ecological processes.

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Ontogeny of phototaxis and geotaxis during larval development of the sabellariid polychaete Phragmatopoma lapidosa

Cited by 24 publications

References 19 publications

Pivotal role of sea ice sediments in the seasonal development of near-shore Arctic fast ice biota

Pivotal role of sea ice sediments in the seasonal development of near-shore Arctic fast ice biota

Ontogenetic changes in phototactic behavior during metamorphosis of artificially reared Japanese eel Anguilla japonica larvae

Behavioral responses of invertebrate larvae to water column cues

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