Tidal vertical migration of two estuarine copepods: naupliar migration and position-dependent migration

Ueda, Hiroshi; Kuwatani, Megumi; Suzuki, Keita W.

doi:10.1093/plankt/fbq078

Cited by 22 publications

(25 citation statements)

References 28 publications

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“…Therefore the benefits of the ETM could be utilized only by species that have a preference (or tolerance) for both high turbidity and low salinity. In this context, many of semi-endemic species of the Ariake Sea would be specialists in the ETM, i.e., species that depend on the ETM for population maintenance (e.g., Coilia nasus, Takita 1967a, b; Sinocalanus sinensis, Ueda et al 2004Ueda et al , 2010; Hyperacanthomysis longirostris, Suzuki et al 2008Suzuki et al , 2009a. In general, these species are considered to be continental relicts that were derived from the isolation of the Japanese archipelago from the Eurasian continent by marine transgressions during geological history (Sato and Takita 2000).…”

Section: Implications For Estuarine Organismsmentioning

confidence: 99%

Year-round accumulation of particulate organic matter in the estuarine turbidity maximum: comparative observations in three macrotidal estuaries (Chikugo, Midori, and Kuma Rivers), southwestern Japan

et al. 2012

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The inner part of the Ariake Sea is one of the most productive estuarine systems in Japan. To examine potential food items for estuarine organisms, we conducted monthly observations of the dynamics of particulate organic matter along the macrotidal Chikugo River estuary in 2005 and 2006. In the neighboring macrotidal Midori and Kuma River estuaries, comparative observations were made. High turbidity and strong vertical mixing were observed only at low salinities (\10) in the Chikugo River estuary. In contrast, the Midori and Kuma River estuaries were characterized by less turbid and less mixed waters. Concentrations of particulate organic carbon often exceeded 5 mg l -1 in or close to the estuarine turbidity maximum (ETM) of the Chikugo River estuary. However, such high concentrations were rarely observed in the other two estuaries. The observed differences could be attributable to different hydrodynamic processes related to the different lengths of tidal reaches: 23, 8, and 6 km in the Chikugo, Midori, and Kuma Rivers, respectively. In the Chikugo River estuary, spatiotemporal changes of chlorophyll a suggested that phytoplankton occurred abundantly up-and/or downstream from the ETM especially during the warm season. In contrast, pheophytin (i.e., plant detritus) always accumulated in or close to the ETM. Carbon stable isotope ratios and carbon to nitrogen ratios indicated that the plant detritus was derived from phytoplankton and terrestrial plants. The Chikugo River estuary has a high potential to support the production of estuarine organisms through abundant plant detritus in the well-developed ETM all the year round.

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Section: Implications For Estuarine Organismsmentioning

confidence: 99%

Year-round accumulation of particulate organic matter in the estuarine turbidity maximum: comparative observations in three macrotidal estuaries (Chikugo, Midori, and Kuma Rivers), southwestern Japan

et al. 2012

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“…Their findings suggest that this copepod might use a retention mechanism to maintain its position in the channel, combining swimming behavior that allows regulation of vertical distribution synchronouly with the tidal cycle (KOUASSI et al, 2001;Marques et al, 2009). Tidal vertical migration (TVM), a tide-dependent mechanism whereby some zooplanktonic species are able to maintain their position in estuaries, has been reported in several studies on copepods (KIMMERER; MCKINNON, 1987;HOUGH;NAYLOR, 1991;MORGAN et al, 1997;SHANG et al, 2007;UEDA et al, 2010), crab larvae (CRONIN; FORWARD, 1979), mysids and amphipods (KIMMERER et al, 1998). The retention efficiency of TVM depends on the swimming ability of the zooplankton.…”

Section: Discussionmentioning

confidence: 92%

“…The retention efficiency of TVM depends on the swimming ability of the zooplankton. This mechanism is hypothesized as responsible for zooplankton's ability to concentrate in the deeper layers of the water column at ebb tide and in the upper layers at flood tide (UEDA et al, 2010). In other words, it serves to limit population loss through net seaward flow since seaward flow during ebb tides and landward flow during flood tides are for the most part faster in the upper layers of the water column.…”

Section: Discussionmentioning

confidence: 99%

“…Deeper insight into the variability of these ecosystems at different temporal-spatial scales is therefore a prerequisite to understanding the composition and abundance dynamics of estuarine mesozooplankton. Tides, winds and estuarine circulation influence the composition and abundance of estuarine zooplankton, also affecting zooplankton assemblage composition and therefore their spatial (vertical and horizontal) distribution (HILL, 1991;WIAFE;FRID, 1996;DAUVIN et al, 1998;KIMMERER et al, 1998KIMMERER et al, , 2002PEITSCH et al, 2000;ROMAN et al, 2001;MOUNY;DAUVIN, 2002;NAYLOR, 2006;THORISSON, 2006;DEVREKER et al, 2008DEVREKER et al, , 2010HSIEH et al, 2010;UEDA et al, 2010;SCHMITT et al, 2011;MENENDEZ et al, 2011MENENDEZ et al, , 2012GONÇALVES et al, 2012;DA COSTA et al, 2013). The temporal variation in environmental conditions is another main factor strongly affecting the occurrence, features and distribution of zooplankton assemblages (DAUVIN et al, 1998;MARQUES et al, 2009;DUTTO et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Tidal effects on short-term mesozooplankton distribution in small channels of a temperate-turbid estuary, Southwestern Atlantic

et al. 2015

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The short-term variability of mesozooplankton distribution and physicochemical variables was examined in two different channels of the Bahía Blanca Estuary, Argentina, during two tidal cycles. All the physicochemical measurements and mesozooplankton sampling were performed at a fixed site during approximately 22-23 h at 3-h intervals. Pumps were used to obtain surface and bottom mesozooplankton samples and the water speed of each stratum was measured with an Acoustic Doppler Current Profiler (ADCP). In all, 23 mesozooplanktonic taxa belonging to four phyla (Arthropoda, Annelida, Echinodermata and Chordata) were identified. The most abundant taxa during the two tidal cycles were Balanus glandula larvae, Eurytemora americana and Acartia tonsa. A discernible variability in the water conditions and vertical mesozooplankton distribution (VMD) different from that known for the estuary's main channel, was found in the other two selected channels. VMD varied during the tidal cycle in both channels in accordance with the channel's geomorphology and water dynamic characteristics of each of them. The variation of the abundance of the different taxa during ebb and flood currents might indicate the existence of a tidal vertical migration of the mesozooplankton as a response to particular dynamic water conditions. A variação de curto prazo da distribuição do mesozooplâncton e das variáveis físico-químicas foi examinada em dois diferentes canais do Estuário de Bahia Blanca, Argentina, durante dois ciclos de maré. As medidas físico-químicas e a amostragem do zooplâncton foram realizadas em dois locais fixos durante aproximadamente 22-23 horas, com intervalos de 3 horas. Bombas foram utilizadas para obter amostras de zooplâncton na superfície e no fundo e a velocidade da água em cada estrato foi medida com o Perfilador Acústico de Corrente (ADCP). Ao todo, foram identificados 23 taxa mesozooplanctônicos pertencentes a 4 filos (Arthropoda, Annelida, Echinodermata e Chordata). Os grupos mais abundantes durante os dois ciclos de maré foram larvas de Balanus glandula, além de Eurytemora americana e Acartia tonsa. Nos dois canais selecionados foi identificada uma variação nas condições da água e na distribuição vertical do mesozooplâncton (DVZ) diferente daquela conhecida para o canal principal do estuário. DVZ variou durante o ciclo de maré em ambos os canais de acordo com a geomorfologia e características da dinâmica das águas existente em cada um deles. A variação na abundância dos diferentes taxa durante as marés vazante e enchente poderia estar indicando a existência de migração vertical do mesozooplâncton em resposta a uma determinada condição dinâmica da água. AbstrAct

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“…may be explained as an attempt to maintain their position within the reef. In estuarine areas, certain copepod species will migrate when tides shift and currents are low, allowing them to maintain their position in a bay and not be swept away (Kimmerer and McKinnon 1987;Ueda et al 2010). Although Labidocera detruncata, the same species complex that Labidocera spp.…”

Section: Discussionmentioning

confidence: 99%

Neustonic copepods (Labidocera spp.) discovered living residentially in coral reefs

et al. 2017

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Pontellid copepods are archetypical representatives of the neuston-the highly specialized community living in the top 5-10 cm of the ocean surface. Their deep blue pigmentation and large eyes are unique adaptations to surface irradiation and carnivory, but poor prerequisites for survival in the transparent waters beneath the sea surface. Here, we report the discovery of three reef-associated representatives of this group-Labidocera bataviae A. Scott, 1909; L. pavo Giesbrecht, 1889; and Labidocera sp.-living residential in coral reefs. We (1) document the presence of Labidocera spp. for two separate coral reefs on two expeditions to Papua New Guinea, (2) describe their migration behavior and substrate preference, and (3) quantify the effects of benthic reef community composition on their abundance. All life stages of Labidocera spp. were 43 to 94 times as abundant at the reef sites as in offshore sites. Although pontellids are generally considered non-migrators, Labidocera spp. showed discernible diel vertical migrations: living in reef substrates during the day, emerging into the water column at night (sometimes more than once), and returning to the substrate at dawn. Labidocera spp. showed a pronounced substrate preference for coral rubble, microalgae, and turf, over branching coral, massive boulder coral, and sand.

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Tidal vertical migration of two estuarine copepods: naupliar migration and position-dependent migration

Cited by 22 publications

References 28 publications

Year-round accumulation of particulate organic matter in the estuarine turbidity maximum: comparative observations in three macrotidal estuaries (Chikugo, Midori, and Kuma Rivers), southwestern Japan

Year-round accumulation of particulate organic matter in the estuarine turbidity maximum: comparative observations in three macrotidal estuaries (Chikugo, Midori, and Kuma Rivers), southwestern Japan

Tidal effects on short-term mesozooplankton distribution in small channels of a temperate-turbid estuary, Southwestern Atlantic

Neustonic copepods (Labidocera spp.) discovered living residentially in coral reefs

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