Spatial distribution of cephalopod paralarvae in San José Gulf (Northern Patagonia, Argentina): The role of tidal circulation in larval dispersal

Crespi-Abril, Augusto César; Gomila, Gabriela Lujan Villanueva; Venerus, Leonardo A.; Barón, Pedro J.

doi:10.1016/j.fishres.2013.07.002

Cited by 19 publications

(5 citation statements)

References 36 publications

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“…1). The pattern of water circulation at the San Matías Gulf (rivas & Beier 1990, amoroso et al 2011, Crespi-aBriL et al 2014 suggests that the populations of N. granulata in both sites are likely connected by larval transport. San Antonio Oeste (SAO) is a large intertidal area (143 km 2 ) placed in the western bank of San Antonio Bay and is characterized by extensive sand-cobble intertidal flats; Riacho San José (RSJ) is a smaller intertidal area (2 km 2 ) located in the southwestern extreme of San José Gulf; this is the southernmost population of this species registered so far.…”

mentioning

confidence: 99%

Great unexpected differences between two populations of the intertidal crab Neohelice granulata inhabiting close but contrasting habitats (Crustacea: Decapoda: Brachyura)

Spivak¹,

Bas²,

Luppi³

2016

Zoologia (Curitiba)

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confidence: 99%

Great unexpected differences between two populations of the intertidal crab Neohelice granulata inhabiting close but contrasting habitats (Crustacea: Decapoda: Brachyura)

Spivak¹,

Bas²,

Luppi³

2016

Zoologia (Curitiba)

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“…This finding is remarkable, considering that multiple chemical cues may have a critical importance for settlement of invertebrates 59 . Thus, the association of P. oceanica physical influence and C. scutellum chemical cues might produce a stronger induction activity on larval metamorphosis, as observed for the mud crab Panopeus herbstii 9 . Also in this case, water-soluble compounds produced by microorganisms and other cues accelerated the metamorphosis of the crab megalopae.…”

Section: Discussionmentioning

confidence: 89%

“…In the main period of competence (from the 6 th to 12 th day) the differences were less evident. This period also corresponds to the maximum rates of settlement, probably due to biological limitations for the species to delay metamorphosis before it becomes too costly 9,53 . Only in the last three days, at the completion of the process, the average number of post-larvae produced in controls was higher (18.48%) than the larvae produced in Posidonia treatments (8.04%).…”

Section: Discussionmentioning

confidence: 99%

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Inducers of settlement and metamorphosis of the shrimp Hippolyte inermis Leach in Posidonia oceanica

Zupo

Mutalipassi

Glaviano

et al. 2019

Sci Rep

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Larvae of the caridean shrimp Hippolyte inermis persist in the plankton of the Mediterranean up to about one month. Since they need to reach appropriate coastal areas for their recruitment in seagrass meadows, we hypothesized that leaves of Posidonia oceanica or, alternatively, algae present in their epiphytic biofilms, might be physically recognised as target substrates and trigger larval metamorphosis and settlement. Chemical cues could improve the finding of suitable habitats for settlement. Thus, the effects of leaves of P. oceanica and biofilms of the diatom Cocconeis scutellum parva , seasonally abundant in the leaf epiphytic stratum, were investigated along with the effect of volatile organic compounds (VOCs) extracted from the epiphytic diatom. The physical induction with P. oceanica accelerated larval settlement, stimulating an earlier and faster metamorphosis of larvae. C. scutellum parva produced a weaker effect on settlement; however, diatom’s VOCs had evident influence and accelerated metamorphosis and settlement. We concluded that such chemical cues as the VOCs produced by epiphytic diatoms, reinforce the effect of physical cues for the identification of suitable settlement locations for this shrimp.

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“…These large octopus paralarvae have been called "extended pelagic stages" by Rees (1954) and "superparalarvae" by Strugnell et al (2004) and have been suggested to be octopuses that delay settlement on the seabed due to the absence of suitable bottom habitat such as shallow, neritic areas. Thus, relatively large individuals of at least 10 species of benthic octopuses have been collected or observed as part of the macroplankton, using plankton nets, light traps, and ROVs in coastal and oceanic waters (see Table 6 in Villanueva and Norman, 2008;Carrasco et al, 2012;Salman, 2012;Crespi-Abril et al, 2014;Roper et al, 2015). The largest individuals attain 25 mm in mantle length (ML) in Octopus rubescens (Young, 1972, as Octopus sp.)…”

Section: Introductionmentioning

confidence: 99%

Extended Pelagic Life in a Bathybenthic Octopus

Villanueva

Laptikhovsky²,

Piertney

et al. 2020

Front. Mar. Sci.

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Planktonic stages of benthic octopuses can reach relatively large sizes in some species, usually in oceanic, epipelagic waters while living as part of the macroplankton. These young octopuses appear to delay settlement on the seabed for an undetermined period of time that is probably longer than for those octopus paralarvae living in coastal, neritic waters. The reason for this delay is unknown and existing information about their biology is very scarce. Here we report on the presence of juvenile and subadult forms of the bathybenthic octopus Pteroctopus tetracirrhus in oceanic waters of the South and North Atlantic and its association with the pyrosomid species Pyrosoma atlanticum, apparently used by the octopus as a refuge or shelter. The relatively large size of the P. tetracirrhus living in oceanic waters as the individuals reported here, together with the morphological characteristics of this bathybenthic species including its gelatinous body, minute suckers embedded in swollen skin and the deep interbrachial web, indicates that P. tetracirrhus may be considered a model of a transitional octopus species that is colonizing the pelagic environment by avoiding descending to the bathyal benthos. This process seems to occur in the same way as in the supposed origin of the ctenoglossan holopelagic octopods of the families Amphitretidae, Bolitaenidae, and Vitreledonellidae, which have arisen via neoteny from the planktonic paralarval stages of benthic octopuses.

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Spatial distribution of cephalopod paralarvae in San José Gulf (Northern Patagonia, Argentina): The role of tidal circulation in larval dispersal

Cited by 19 publications

References 36 publications

Great unexpected differences between two populations of the intertidal crab Neohelice granulata inhabiting close but contrasting habitats (Crustacea: Decapoda: Brachyura)

Great unexpected differences between two populations of the intertidal crab Neohelice granulata inhabiting close but contrasting habitats (Crustacea: Decapoda: Brachyura)

Inducers of settlement and metamorphosis of the shrimp Hippolyte inermis Leach in Posidonia oceanica

Extended Pelagic Life in a Bathybenthic Octopus

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