Diel vertical migration of predators (planktivorous fish larvae) and prey (zooplankton) in a tropical lagoon

Mendonça, Marcos Marques; Picapedra, Pablo Henrique dos Santos; Ferronato, Michelli Caroline; Sanches, Paulo Vanderlei

doi:10.1590/1678-476620151052174183

Cited by 9 publications

(6 citation statements)

References 34 publications

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“…Such situations commonly result in diminished zooplankton migration (Gliwicz and Pijanowska, 1988;Leibold, 1990;Lampert, 2005). The lack of migration further highlights the importance of predation in determining prey distribution (Zaret and Suffern, 1976;Pearre, 2003;Mendonça et al, 2015). It is possible that zooplankton may develop specialized abilities to use the epilimnion more efficiently due to consistency in habitat use.…”

Section: Discussionmentioning

confidence: 99%

“…Stratified waterbodies therefore offer greater scope of discrete depth-habitats for diverse zooplankton to inhabit (Bini et al, 2001). The observed distribution patterns are the outcome of active movement of organisms in response to shifts in habitat quality (Mendonça et al, 2015;Picapedra et al, 2015) or passive vertical transport generated by mixing events (Kramer et al, 1997).…”

Section: Introductionmentioning

confidence: 99%

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Depth distribution of zooplankton in relation to limnological gradients under different stratification and interannual regimes in a deep, tropical crater lake

Sanful

Aikins

Hecky

2017

Ann. Limnol. - Int. J. Lim.

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Zooplankton vertical distribution was studied in Lake Bosumtwi to understand how spatial and temporal variations in the water column affected diurnal and nocturnal patterns. Biweekly samples were collected for 24 consecutive months at the deepest point from 2005 to 2006. Water column properties shaping habitat suitability, namely temperature, light intensity, dissolved oxygen and phytoplankton biomass, varied markedly with depth but less with season. Most zooplankton stayed in the epilimnion continuously and their distribution was unaltered by lake stratification, mixing and restratification. Species dwelt permanently in the epilimnion without any necessity to migrate. Reduced water column variability and resultant weak selective pressures suppressed greater dispersion of species. Chaoborus ceratopogones (Theobald) was the main invertebrate predator and performed upward and downward movements on a diel cycle. Competing prey species overlapped extensively in spatial and temporal degree of habitat use. Chaoborus, however, segregated in deep water during the day, thereby minimizing prey vulnerability and promoting coexistence among predators and prey. During night-time residence, prey species may be exposed to increased predation risk from Chaoborus but gains in reproductive potential in warm, food-rich surface waters may offset losses to mortality. Our results suggest that high degree of habitat constancy and consequently weak selective pressures contributed to the lowered behavioural responses of zooplankton. The persistently skewed distribution of zooplankton is adaptive to predation and competition and promotes species coexistence. This behaviour will optimize growth and reproductive benefits over the cost of descent to suboptimal conditions in deep water.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Depth distribution of zooplankton in relation to limnological gradients under different stratification and interannual regimes in a deep, tropical crater lake

Sanful

Aikins

Hecky

2017

Ann. Limnol. - Int. J. Lim.

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“…Its connection with the Paraná River was sporadic in years with very high floods; the last record was in 1996. However, after the construction of the Porto Primavera Reservoir, there have been no such floods to connect the lake with the Paraná River (Daga et al, 2009;Mendonça et al, 2015).…”

Section: Study Sitementioning

confidence: 99%

“…Consequently, it spread throughout the Paraná River basin (Torloni et al, 1993). These two species have become successful and are among the dominant species in many environments of the Upper Paraná River floodplain (Langeani et al, 2007), including in areas of environmental protection, such as the Parque Nacional de Ilha Grande (Daga et al, 2009;Baumgartner et al, 2010;Mendonça et al, 2015) and the Parque Estadual das Várzeas do Rio Ivinhema (Reynalte-Tataje et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Effects of light-dark cycle on the spatial distribution and feeding activity of fish larvae of two co-occurring species (Pisces: Hypophthalmidae and Sciaenidae) in a Neotropical floodplain lake

2018

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Most studies on mechanisms regulating fish larvae processes have focused on assessing the isolated effects of food distribution and feeding behavior. However, in natural ecosystems, fish larvae may strongly interact with zooplankton organisms in an array of complex, direct and indirect interdependencies. This study analyzed the spatial distribution, diet and feeding behavior of early stages of Hypophthalmus edentatus and Plagioscion squamosissimus, two fish species co-occurring in an isolated floodplain lake, during the light-dark cycle. Larvae fed more actively during dark periods (dusk and night) when they migrated toward the surface of the lake, and remained on the bottom and fed less during light periods (day and dawn). Cladocerans represented the most frequent prey in the diet of H. edentatus larvae. In turn, P. squamosissimus larvae initially preferred cladocerans and, as they developed, included calanoid copepods in the diet. Significant differences were detected in the frequencies of food items consumed during larval development, which could be related to a better ability of the most developed stages to explore the environment in search of other prey.Keywords: diet, predation, feeding preference, trophic strategy, zooplankton.Efeitos do ciclo claro-escuro na distribuição espacial e na atividade alimentar de larvas de peixes de duas espécies coexistentes (Pisces: Hypophthalmidae e Sciaenidae) em uma lagoa de planície de inundação Neotropical ResumoA maioria dos estudos de mecanismos que regulam os processos de larvas de peixes se concentra na avaliação dos efeitos isolados da distribuição do alimento e do comportamento alimentar. No entanto, em ecossistemas naturais, as larvas de peixes podem interagir fortemente com os organismos do zooplâncton em uma série de interdependências complexas, diretas e indiretas. Este estudo analisou a distribuição espacial, dieta e comportamento alimentar dos estágios iniciais de vida de Hypophthalmus edentatus e Plagioscion squamosissimus, duas espécies de peixes coexistentes em uma lagoa isolada de planície de inundação, durante o ciclo claro-escuro. As larvas se alimentaram mais ativamente durante os períodos escuros (crepúsculo e noite) quando ascenderam em direção à superfície da lagoa, enquanto durante os períodos luminosos (dia e amanhecer) permaneceram no fundo e pouco se alimentaram. Os cladóceros foram as presas mais frequentes na dieta de larvas de H. edentatus. Por sua vez, larvas de P. squamosissimus inicialmente preferiram cladóceros, e a medida que se desenvolveram incluíram copépodes calanóides na dieta. Diferenças significativas foram detectadas nas frequências dos itens alimentares consumidos durante o desenvolvimento larval, o que poderia estar relacionado a uma melhor capacidade dos estágios mais desenvolvidos em explorar o ambiente na busca por outras presas.Palavras-chave: dieta, predação, preferência alimentar, estratégia trófica, zooplâncton.

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“…Diel vertical migration (DVM) is a well-documented behavior among diverse taxa of zooplankton from tropical environments (TrE) [1][2][3] to higher latitude environments [4][5], and the adaptive significance of this behavior has been explained by a wide array of competing hypothesis [6]. The major driving factors of this behavior can be attributed to predator avoidance [7], prevention from light related mortality [8], the bioenergetic advantage [9], and demographic benefits [10].…”

Section: Introductionmentioning

confidence: 99%

Plankton and the Invisible Barriers in the Tropical Ocean

Karati¹,

Vineetha²,

Tv³

et al. 2017

JAMB

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Diel vertical migration (DVM) is one of the major biological rhythms observed among zooplankton. In tropical environments (TrE), zooplankton is believed to exhibit prominent DVM. Chaetognath, a major vertical migrator among zooplankton in the global ocean, was studied from the Bay of Bengal, an important zone in TrE of Indian Ocean. Here a novel method (abundance-weighted tolerance index) was introduced which was successful in predicting the species, capable of performing DVM. The vertical profiles of physico-chemical variables exhibited a wide variation in upper 1000 m and only two species of the total twenty-five species exhibited significant DVM which opposed the general concept of DVM in TrE. The pronounced variations in physico-chemical variables acted as invisible barriers for zooplankton to perform DVM. The observed restricted DVM will have significant impact on the marine ecological processes including biological pump in the system.

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Diel vertical migration of predators (planktivorous fish larvae) and prey (zooplankton) in a tropical lagoon

Cited by 9 publications

References 34 publications

Depth distribution of zooplankton in relation to limnological gradients under different stratification and interannual regimes in a deep, tropical crater lake

Depth distribution of zooplankton in relation to limnological gradients under different stratification and interannual regimes in a deep, tropical crater lake

Effects of light-dark cycle on the spatial distribution and feeding activity of fish larvae of two co-occurring species (Pisces: Hypophthalmidae and Sciaenidae) in a Neotropical floodplain lake

Plankton and the Invisible Barriers in the Tropical Ocean

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