High survival of neustonic zoea I larvae of American lobster Homarus americanus following short-term exposure to ultraviolet radiation (280 to 400 nm)

Rodriguez, C.; Browman, Howard I.; St-Pierre, Jean-François

doi:10.3354/meps193305

Cited by 7 publications

(5 citation statements)

References 26 publications

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“…Lobster larvae may therefore be exposed to high doses of UV radiation; yet larvae exposed to radiation had a mortality rate comparable to that of protected larvae. 138 This outcome suggests that lobster larvae are tolerant to UV radiation. A combination of adaptations to planktonic life near the surface, such as production of light-blocking pigments and other effective mechanisms, may account for the relative resistance of lobster larvae to UV radiation.…”

Section: Secondary Consumersmentioning

confidence: 98%

Aquatic ecosystems: effects of solar ultraviolet radiation and interactions with other climatic change factors

Häder

Kumar²,

Smith

et al. 2003

Photochem Photobiol Sci

114

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Aquatic ecosystems are a key component of the Earth's biosphere. A large number of studies document substantial impact of solar UV radiation on individual species, yet considerable uncertainty remains with respect to assessing impacts on ecosystems. Several studies indicate that the impact of increased UV radiation appears relatively low when considering overall ecosystem response, while, in contrast, effects on individual species show considerable responses. Ecosystem response to climate variability incorporates both synergistic and antagonistic processes with respect to UV-related effects, significantly complicating understanding and prediction at the ecosystem level. The impact of climate variability on UV-related effects often becomes manifest via indirect effects such as reduction in sea ice, changes in water column bio-optical characteristics, changes in cloud cover and shifts in oceanographic biogeochemical provinces.

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Section: Secondary Consumersmentioning

confidence: 98%

Aquatic ecosystems: effects of solar ultraviolet radiation and interactions with other climatic change factors

Häder

Kumar²,

Smith

et al. 2003

Photochem Photobiol Sci

114

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“…Finally, chemical cues, which are necessary for larval settlement, might be destroyed by UVR. It has been demonstrated that most larvae require specific chemical cues for settlement (see reviews : Scheltema 1974, Pawlik 1992, Rodriguez et al 1993. Biofilms, which mainly consist of bacteria and diatoms, are known to induce settlement of H. elegans (Hadfield et al 1994, Qiu & Qian 1997, Unabia & Hadfield 1999, Lau & Qian 2001, Harder et al 2002, Lau et al 2003.…”

Section: Discussionmentioning

confidence: 99%

Effect of solar ultraviolet radiation on the formation of shallow, early successional biofouling communities in Hong Kong

Dobretsov¹,

Qian

Wahl

2005

Mar. Ecol. Prog. Ser.

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The effect of ambient solar ultraviolet radiation (UVR) on a shallow-water (4 cm) tropical fouling community was assessed during the succession of macrobenthic species on artificial substrates at the Wong Shek fish farm, Hong Kong. The early successional communities developing under 3 radiation treatments (PAR + UV-A + UV-B = 280 to 700 nm; PAR + UV-A = 320 to 700 nm, and PAR = 400 to 700 nm) were monitored for 14 wk. A total of 8 species of algae and 8 species of invertebrates colonised the experimental tiles. During the first 8 wk of the experiments, there were no differences among treatments in diversity, percentage of cover of species and the biomass of the colonisers. During the following 6 wk, the communities exposed to UVR had lower species richness than the communities exposed to only PAR had. The species diversity (after 79 and 98 d) of the 3 treatments varied, but the total percentage of species cover and the entire community biomass were not significantly different across the experiment. Juveniles of the polychaete Hydroides elegans and the barnacle Balanus amphitrite, juveniles of the clams Perna viridis and Modiolus comptus, and the algae Enteromorpha sp., Ectocarpus sp. and Cladophora sp. were responsible for the dissimilarity between communities developed under different UVR treatments. The algae constituted a higher percentage of the cover under the full sunlight spectrum, whereas the polychaete, the barnacle and the clams were dominant in the no-UVR treatment. Our outdoor experiment revealed that UVR inhibited the settlement and decreased post-settlement survival of H. elegans. We concluded that UVR affects the composition of early successional, shallow water biofouling communities in tropical waters as well as the settlement and mortality of single species.

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“…cit.). For these reasons, it would be very useful to understand how the neuston is influenced by environmental and oceanographic factors, including temperature, solar radiation, salinity, and acidification (Hardy, 1991;Rodríguez et al 2000;Zaitsev, op. cit.…”

Section: Introductionmentioning

confidence: 99%

Abundance and spatial distribution of Polygordius (Polychaeta: Polygordiidae) neustonic exolarvae in estuaries from southern Chile

Cañete

Gallardo

Medina

et al. 2019

Anales Instituto Patagonia (Chile)

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Integration of meroplankton abundance and hydrographic data was employed to relate the Polygordius exolarvae spatial dynamics with different salinity gradients in order to define the factors that regulate the abundance and spatial distribution along the large estuarine system from southern Chile. The present study aims: i) record the abundance and spatial distribution of Polygordius neustonic exolarvae along of the estuaries with different gradients of salinity located between Guafo Channel, southern Chiloé Island (44º S) to Navarino Island (55º S), Chile; ii) connect this distributional pattern to oceanographic parameters to determine if members of this genus have adapted to euryhaline or stenohaline conditions, and iii) establish a comparison between the abundance of Polygordius and others meroplanktonic taxa collected during CIMAR Cruises 16, 18 and 20 Fjords. Neustonic samples were collected during three oceanographic cruises along southern Chilean fjord/channel systems (~ 1,700 km) with different freshwater supply regimes (CIMAR 16: October/November, 2010, 52º to 55º S; CIMAR 18: June/July, 2012, 44º to 47º S; CIMAR 20: October, 2014, 47º to 50º S), providing evidence to relate the influence of surface salinity on the Polygordius exolarvae spatial distribution of abundance. Polygordius exolarvae (average length=2.9 ± 0.8 mm), the most abundant meroplanktonic taxa within the neustonic community (54.04% of total abundance; 66,228 individuals; N Total =26 stations), was represented at 81% of stations sampled in CIMAR 16 (mean salinity=30.7 psu), showing higher abundance (1,518 ind. x 5 min of horizontal drag) than for other polychaete larvae (10 types) and other meroneustonic taxa; 60% of the abundance of exolarvae during CIMAR 16 was collected around Dawson Island, Magellan Strait. In CIMAR 18 cruise (mean salinity=24.28 psu), abundance of exolarvae was low (3 ind. x 5 min of horizontal drag) and were collected only at 5 stations along the Moraleda Channel (N Total =31 stations); no exolarvae were collected during CIMAR 20 (N total =39 stations) (mean salinity= 23.26 psu). Polygordius exolarvae have narrow haline/thermal requirements during their pelagic life, where sills and island mass effect could produce a restricted and aggregated spatial distribution in some areas of the study zone.

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High survival of neustonic zoea I larvae of American lobster Homarus americanus following short-term exposure to ultraviolet radiation (280 to 400 nm)

Cited by 7 publications

References 26 publications

Aquatic ecosystems: effects of solar ultraviolet radiation and interactions with other climatic change factors

Aquatic ecosystems: effects of solar ultraviolet radiation and interactions with other climatic change factors

Effect of solar ultraviolet radiation on the formation of shallow, early successional biofouling communities in Hong Kong

Abundance and spatial distribution of Polygordius (Polychaeta: Polygordiidae) neustonic exolarvae in estuaries from southern Chile

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