Amphipoda from marine caves of Hong Kong Island

Horton, Tammy

doi:10.1080/00222930701860124

Cited by 11 publications

(3 citation statements)

References 27 publications

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“…Though many ecological and taxonomical studies have been conducted in marine caves, their soft-bottom communities have often been overlooked. The sediment assemblages inhabiting marine caves often show a distinctive species composition and usually hold many new and endemic species (Bamber et al 2008;Horton 2008). Within them, crustaceans (and mainly amphipods) are the dominant taxa in both abundance and number of individuals (NavarroBarranco et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Amphipods from marine cave sediments of the southern Iberian Peninsula: diversity and ecological distribution

Navarro‐Barranco¹,

Guerra-García²,

Sánchez-Tocino³

et al. 2014

Sci. Mar.

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Summary:The present study explores the amphipod assemblages of six marine caves on the Mediterranean coast of southern Spain. Replicate samples were taken both inside and outside each marine cave in order to characterize the amphipod fauna and the physicochemical properties of the sediment. As a result, 44 amphipods species were identified. The high number of species found in a relatively limited area highlighted the richness of the Alboran Sea fauna, which is mainly due to the mixture of species from different biogeographic areas. Harpinia genus was the dominant amphipod taxa inside marine caves and Perioculodes longimanus was also very abundant in the caverns. On the other hand, external communities were dominated by Siphonoecetes sabatieri, Metaphoxus fultoni and Photis longipes. There was a high degree of variability in both the internal and the external stations. Only the external station situated at low-medium depth showed a relatively homogeneous amphipod assemblage. The structure and behaviour of soft-bottom communities inside marine caves is difficult to predict because their environmental conditions depend on a particular combination of factors such as topography, depth and orientation. Therefore, no constant patterns were observed for species richness, Shannon diversity and abundance of amphipods in marine caves in comparison with open habitats. According to canonical correspondence analysis, sediment granulometry, organic matter and nitrogen concentration were the parameters that best explained the distribution of amphipods. Species were also classified by their tolerance to environmental pollution according to criteria followed by the Azti Marine Biotic Index and the BENTIX index. The great abundance of sensitive species at both the internal and external stations indicates the good ecological quality of the soft bottom studied. However, the suitability of biotic indices in marine caves should be tested in future studies.Keywords: marine caves; soft-bottom communities; Amphipoda; benthic ecology; Mediterranean Sea. Anfípodos en sedimentos de cuevas submarinas del Sur de la Península Ibérica: diversidad y distribución ecológicaResumen: En el presente trabajo se estudia la fauna de anfípodos presente en el sustrato blando de seis cuevas submarinas de la costa Mediterránea del sur de España. Con el objetivo de caracterizar tanto la comunidad biótica como las características físico-químicas del sedimento, se tomaron muestras de sedimento a la salida y en el interior de las cuevas submarinas. Como resultado, se identificaron un total de cuarenta y cuatro especies de anfípodos diferentes. Este elevado número de especies encontrado en un área relativamente limitada pone de manifiesto la riqueza faunística del Mar de Alborán, la cual se atribuye principalmente a la mezcla de especies de diferentes áreas biogeográficas. El género Harpinia fue el taxón dominante en el interior de las cuevas, junto con Perioculodes longimanus. Por otro lado, la comunidad en las zonas externas estaba dominada por Siphonoecetes s...

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Section: Introductionmentioning

confidence: 99%

Amphipods from marine cave sediments of the southern Iberian Peninsula: diversity and ecological distribution

Navarro‐Barranco¹,

Guerra-García²,

Sánchez-Tocino³

et al. 2014

Sci. Mar.

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“…In the present study, >10 species of gammarideans were identified, but only one, Maera pacifica Schellenberg, 1938, has been reported from Hong Kong previously (Moore, 1990). Although knowledge of Hong Kong gammaridean amphipods (Hirayama, 1990a, b, 1991; Moore, 1990, Lowry, 2000; Horton, 2008) is fragmentary, resulting in the novel species recorded from this study, the dramatic difference between the benthic community and the trap samples supports the contention of Shulenberger & Hessler (1974) and Nishida et al (1999) that trapping with bait is an efficient means of collecting dispersed, swimming and elusive hyperbenthic species obtained only rarely by other methods.…”

Section: Discussionmentioning

confidence: 99%

The composition and spatial distribution of scavenging hyperbenthos in the Cape d'Aguilar Marine Reserve, Hong Kong

Morton

Lee

2011

J. Mar. Biol. Ass.

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Baited traps with a 5 mm diameter opening were deployed 9 cm off the seabed in the Cape d'Aguilar Marine Reserve, Hong Kong. In contrast to analogous studies from boreal waters, lysianassoids accounted for 0.5% of the total number of trapped hyperbenthos. Species of Tisbe (Copepoda: Tisbidae), Ceradocus (Gammaridea: Melitidae), Nebalia (Leptostraca: Nebaliacea), unidentified benthic ostracods, Neanthes cricognatha (Polychaeta: Nereidae) and a species of Lepidepecreum (Amphipoda: Lysianassoidea) were caught in a decreasing order of numerical importance. A spatial segregation of trapped fauna was identified between the reserve's shallow Lobster Bay (<–2 m Chart Datum (CD)) and deeper-waters (between –6 and–17 m CD) outside it. Ceradocus sp. monopolized the trapped fauna in the former area, while the other species were caught almost exclusively from the latter. Insignificant Ceradocus sp. catch differences between baited and control traps suggested that they functioned only as ‘habitat traps’ for this species. Almost all other organisms attracted to the bait were hyperbenthic scavengers. Their absence from the shallows might be due to the coarser and lower organic contents of the sediments, also related to faster flow rates here. Finally, we confirm that in subtropical Hong Kong, lysianassid amphipods are not as significant hyperbenthic scavengers as they are in boreal waters.

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“…However its occurrences in shallow mangrove sediments were unknown until now and requires further investigation. The barcoded Protohyale honoluluensis (Schellenberg, 1938) in this study was known to occur in the Hong Kong Island marine caves of (Horton, 2008).…”

Section: Species Composition and History Of Its Occurrencesmentioning

confidence: 93%

Strengthening marine amphipod DNA barcode libraries for environmental monitoring

PrasannaKumar

Manikantan

Vijaylaxmi

et al. 2020

Preprint

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Environmental DNA (eDNA) barcoding technology is finding innovative applications in monitoring terrestrial and marine biodiversity. DNA barcode reference libraries containing barcodes for wide range of species is vital for the success of monitoring any environments using eDNA barcodes. Since amphipods are used as bio-indicators for monitoring environmental quality and its health, we used DNA barcodes of amphipods to test the efficacy of present DNA libraries for species identification. We barcoded 22 amphipod species belonging to 17 genera of 13 families. 50% of barcodes produced in the present study was generated for the first time, as the sequences were absent in GenBank and Barcode of Life Databases (BOLD). Tree based identification method used in the present study precisely clustered the generated sequences with reference sequences. Besides exploring the distribution of recorded amphipod species, we show that with advent of next generation sequencing technologies, reference datasets such as ours will become essential for assessing health and monitoring various environments using amphipod barcodes.

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Amphipoda from marine caves of Hong Kong Island

Cited by 11 publications

References 27 publications

Amphipods from marine cave sediments of the southern Iberian Peninsula: diversity and ecological distribution

Amphipods from marine cave sediments of the southern Iberian Peninsula: diversity and ecological distribution

The composition and spatial distribution of scavenging hyperbenthos in the Cape d'Aguilar Marine Reserve, Hong Kong

Strengthening marine amphipod DNA barcode libraries for environmental monitoring

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