Reproductive Strategies in Marine Invertebrates and the Structuring of Marine Animal Forests

Fuentes, OS Wangensteen; Turon, X; Palacín, Creu

doi:10.1007/978-3-319-17001-5_52-1

Cited by 4 publications

(2 citation statements)

References 94 publications

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“…Nevertheless, in several cases, scattered specimens were recorded both on soft-bottom and coralligenous substrates (Carpine and Grasshoff 1975;Weinberg 1976;Gili et al 1989;Mistri and Ceccherelli 1993;Rossi and Gili 2009;Gori et al 2011). This kind of distribution, relatively unusual for Mediterranean shallow-water gorgonians, is probably due to the high survivorship of larvae in the plankton that can reach habitats far from the original population (Wangensteen et al 2017). Under the effect of constant, unidirectional currents, sterile pseudo-populations may be established and maintained by the larval supply coming from the populations located upstream of the currents.…”

Section: Distribution Pattern Of Leptogorgia Sarmentosa At Sardiniamentioning

confidence: 99%

Leptogorgia sarmentosa (Anthozoa: Octocorallia) in NE Sardinia (Mediterranean Sea): distribution and growth patterns

2023

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Distribution and occurrence data of the sea fan Leptogorgia sarmentosa (Esper, 1791) in the Mediterranean Sea were updated thanks to new photographic surveys, highlighting the presence of the species off NE Sardinia and, in particular, in the Tavolara-Punta Coda Cavallo Marine Protected Area (TPCCMPA). The estimated average distance among colonies strongly suggests that they are not able to sexually reproduce and that they probably can be considered a sterile pseudo-population supported by inputs of larvae from the Italian mainland coast towards Sardinia. The putative conveyor belt for larval input to this area is a small permanent gyre (the North-Tyrrhenian Gyre) counterclockwise moving from the Italian to the Sardinian coasts. In TPCCMPA, the growth of one colony settled at 30 m depth was investigated across 7 years (2016–2022). The morphometric parameters indicated a linear development of the colony, in terms of branch development and 3D complexity estimated through the fractal dimension. The observed growth rates were not regular but were reached through a highly variable positive and negative oscillation. A significant correlation was obtained between growth rate and average Autumn and Winter water temperature, suggesting that somatic growth occurs in these periods. In the context of long-lasting elevated seawater temperatures and local damage linked to fishing activities, L. sarmentosa was confirmed to be a resilient species compared with other erect seascape components, like other gorgonians and sponges.

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Section: Distribution Pattern Of Leptogorgia Sarmentosa At Sardiniamentioning

confidence: 99%

Leptogorgia sarmentosa (Anthozoa: Octocorallia) in NE Sardinia (Mediterranean Sea): distribution and growth patterns

2023

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“…Larvae feed in the plankton (except for lecithotrophs) exhibiting long pelagic durations and high dispersal capacity. Distribution of these taxa is largely determined by ocean currents transporting larvae between distant patches of suitable habitat for adults, often over great distances (Scheltema, 1986;Jablonski and Lutz,1983;Pechenik, 1999;Kinlan et al, 2005;Trakhtenbrot et al, 2005;Treml et al, 2008;Wangensteen et al, 2017). On the other hand, ammonites underwent a direct development lacking a distinct larval stage (as other, extant cephalopods: nautiluses, cuttlefishes, squids and octopuses) consisting of four ontogenetic stages (embryonic/egg, neanic, juvenile, and adult; see e.g.…”

Section: Dispersal Strategies Oceanic Palaeocurrents and Readjustment Of Palaeogeographic Reconstructions; An Overviewmentioning

confidence: 99%

Middle Triassic sharks from the Catalan Coastal ranges (NE Spain) and faunal colonization patterns during the westward transgression of Tethys

Manzanares

Escudero-Mozo

Ferrón

et al. 2020

Palaeogeography, Palaeoclimatology, Palaeoecology

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Impact of Physicochemical Parameters on Macroinvertebrates distribution attached to aquatic plants

Redha

Alzurfi

2021

IOP Conf. Ser.: Earth Environ. Sci.

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The nutrients especially nitrate and phosphate have proven the main factor that affected the density of macroinvertebrates in the ecology of river. Four sites in two seasons (Spring and Summer) of 2020 have been selected to address the question of how the density of different aquatic macroinvertebrate attached to aquatic plants is correlated with physicochemical variables in the Euphrates river/Kufa city that considered the first study in Iraq. 19 taxa were diagnosis of macroinvertebrates attached to four aquatic plants (Ceratophyllum demersum, Hydrilla verticillata, Potamogeton crispus and Phragmites australis) during the study period. The Chironomidae genus was recorded in all aquatic plants. High diversity species appearance was recorded in an aquatic plant (Phragmites australis). The high density of macroinvertebrates recorded in spring than summer. temporal and spatial significant differences were found. Apparently, these spatial and temporal differences to be associated with variations in anthropogenic pressure, which differs in each area of the river. We observed a positive relationship between the PO4, NO3 and the density of macroinvertebrates attached with Phragmites australis and negative relationship between TDS and density of macroinvertebrates attached with Potamogeton crispus and found a negative relationship between BOD and density of macroinvertebrates attached with Hydrilla verticillata. These relationships suggest the physical and chemical variables affect the distribution of functional groups, abundance or biomass. There have been spatiotemporal variations in physical and chemical conditions of water associated with changes in the concentration of organic matter and nutrients.

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Reproductive Strategies in Marine Invertebrates and the Structuring of Marine Animal Forests

Cited by 4 publications

References 94 publications

Leptogorgia sarmentosa (Anthozoa: Octocorallia) in NE Sardinia (Mediterranean Sea): distribution and growth patterns

Leptogorgia sarmentosa (Anthozoa: Octocorallia) in NE Sardinia (Mediterranean Sea): distribution and growth patterns

Middle Triassic sharks from the Catalan Coastal ranges (NE Spain) and faunal colonization patterns during the westward transgression of Tethys

Impact of Physicochemical Parameters on Macroinvertebrates distribution attached to aquatic plants

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