Peracarid fauna (Crustacea, Malacostraca) of the Northeast Water Polynya off Greenland:documenting close benthic-pelagic coupling in the Westwind Trough

Brandt, Angelika

doi:10.3354/meps121039

Cited by 74 publications

(43 citation statements)

References 40 publications

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“…Some littoral species undertake nictemeral migrations (Macquart-Moulin, 1991) and recently, vertical movements have also been observed for a few deep sea species (Cartes and Sorbe, 1997). This behavioural pattern would support the presumed contribution of cumaceans, as other suprabenthic crustaceans (Brandt 1993(Brandt , 1995, to the bioturbation and resuspension in the benthic ecosystem. Moreover cumaceans are a food source for fishes (Kurian and Radhadevi, 1983) and other macrobenthic invertebrates (Cartes, 1993).…”

Section: Introductionmentioning

confidence: 53%

Systematics and distribution of cumaceans collected during BENTAR-95 cruise around South Shetland Islands (Antarctica)

Corbera¹

2000

Sci. Mar.

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SUMMARY: During the BENTART-95 cruise, 24 stations around the South Shetland Islands and Trinity Island, ranging from 45 to 649 m bottom depth, were sampled using a Macer-GIROQ sledge. Alltogether, 1236 specimens of cumaceans belonging to 25 species were captured. Four of them are new species named Cumella emergens, Procampylaspis halei, Campylaspis heterotuberculata and Leucon (Crymoleucon) costatus. Distribution of cumaceans in this area is depth-dependent and the highest diversity was observed at the deeper station. A total of 68 species have been recorded from Antarctic and Subantarctic waters, the greatest part (47 species) were found between 50 and 300 m depth; only 3 species inhabit below 2,500 m depth. Antarctic cumacean fauna shows a high degree of endemism at a specific level (91%), however, only one genus of 19 is endemic. By regions, the Kerguelen Islands have the highest percentage of endemic species (56%). Antarctic cumaceans do not seem to have a common origin, some species could have colonized Antarctica through Scotia Arc (as the genus Campylaspis) or emerged from deep-sea while others may be radiated from Antarctica to lower latitudes (as the species of subgenus Crymoleucon).

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Section: Introductionmentioning

confidence: 53%

Systematics and distribution of cumaceans collected during BENTAR-95 cruise around South Shetland Islands (Antarctica)

Corbera¹

2000

Sci. Mar.

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“…al., 2005). Peracarids (Amphipoda, Cumacea, Isopoda, Mysidacea and Tanaidacea) are, in general, common elements of soft bottom macrobenthos LOURIDO et al, 2008) from shallow habitats to the abyssal plains of the world oceans, often presenting high abundance and diversity (BRANDT, 1995). They are considered good indicators of water and sediment quality (CORBERA & CARDELL, 1995;ALFONSO et al, 1998;G MEZ GESTEIRA & DAUVIN, 2000) and it has been repeatedly pointed out that the knowledge of their assemblages may be useful to interpret changes in benthic communities for environmental management purposes CONLAN, 1994;BIERNBAUM, 1979).…”

Section: Introductionmentioning

confidence: 99%

Spatial and temporal variation of soft-bottom peracarid (Crustacea: Peracarida) infauna in the Canakkale Strait (Turkey)

Aslan-Cihangir

Pancucci-Papadopoulou

2011

Medit. Mar. Sci.

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The biodiversity and distribution of soft-bottom peracarid crustaceans were analyzed in the south part of Canakkale Strait, a very important biological corridor between the Mediterranean and the Black Sea. Samples were collected seasonally from 11 coastal stations at depths ranging from 10 to 22 m. Moreover, qualitative samples were collected in summer from 7 stations (40 - 83 m depth) located in the middle part of the Strait. A total of 110 species were identified. Amphipods were the dominant group both in terms of species richness and abundance. Apocorophium acutum, Phtisica marina and Microdeutopus versiculatus were the most abundant species. A large number of rare species was recorded, leading to very low similarity values among stations. Six different feeding types were detected, with surface deposit feeders being the dominant one in the area. Significant differences in abundances and assemblage structure were detected along the eastern and western coasts of the Strait that could be attributed to food supply and sediment composition, depending on bottom current velocities. Possible relations of peracarids with the hydrological regime of the area are also discussed.

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“…Various hypotheses have been developed to explain such a richness of life at depths between 100 and 800 m in water at -1.5°C, which is ice covered almost year-round. These are: 1) The low concentration of terrigenous inorganic suspended material, greater quantities of which might otherwise disturb the fragile filtering mechanisms, 2) The low abundance of true benthic predators, which elsewhere exert a higher pressure on invertebrates to use ecological niches within the sediment, 3) The coastal current that guarantees a continuous supply of fresh phytodetritus for a certain period of the year (Brandt 1995, Gili et al 2002, 4) Habitat heterogeneity and niche fragmentation caused by epibiotic relationships (Gutt & Schickan 1998, Brandt et al 1997, 5) The presence of a sediment with a wide range of particle sizes which allows the successful recruitment of young stages, and 6) Specific vicarious events, e.g. the "climate diversity pumps" (Clarke & Crame 1997a), which are mainly caused by glacial advance and retreat around the continent and split formerly homogenous populations.…”

Section: Mentmentioning

confidence: 99%

Diverse approaches to questions of Biodiversity: German contributions to studies of Marine Benthos around South America and Antartica

et al. 2003

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A look at the latitudinal gradient from North America via South America to Antarctica supports the impression that the ecosystems of this part of the world provide perfect conditions for marine biodiversity studies. Several bilateral or international initiatives with major German contributions have focused on biodiversity questions, especially in South America and Antarctica. At depths > 50 m accessible to shipboard sampling, an oxygen minimum zone (OMZ) prevails off Peru and Chile (except in the extreme south). The macrobenthic biota associated with the OMZ are extremely poor but show a gradient of increasing diversity at great depths and towards the south. In the southern Chilean fjords and channels, habitat heterogeneity is high and differences in the fauna can be observed over even small distances, especially in the Magellan area. A high intra-habitat biodiversity can, thus, be expected. On the exposed deep shelf around Antarctica, a large-scale gradient between a community dominated by a very high biomass and abundance of sessile suspension feeders can be distinguished from a community with significantly fewer epifauna. However, their relationships to the environmental conditions are still poorly understood. For the future, two approaches are recommended, the study of zoogeographical questions in the light of evolution and the identification of the key processes, including environmental changes, that engender biodiversity patterns.KEYWORDS: Marine biodiversity, South America, Antarctica. RESUMENUna mirada al gradiente latitudinal desde América del Norte vía Sur América hasta la Antártica sustenta la impresión que los ecosistemas de esta parte del mundo proveen condiciones perfectas para estudios de biodiversidad marina. Diversas iniciativas bilaterales e internacionales con mayores aportes alemanes se han concentrado en preguntas de biodiversidad especialmente en América del Sur y la Antártica. A profundidades >50 m accesibles a muestreos desde embarcaciones, una zona de mínimo oxígeno (OMZ) predomina en Perú y Chile (excepto en el extremo sur) con una vida macrobentónica extremadamente pobre, mostrando un gradiente de incremento de diversidad a profundidades mayores y en sentido sur. En los fiordos y canales al sur de Chile la heterogeneidad del hábitat parece ser muy alta y claras diferencias faunísticas pueden ser observadas a cortas distancias, especialmente en la región de Magallanes. Como consecuencia se puede esperar una alta biodiversidad entre-hábitats ("between-habitat"). En la plataforma expuesta profunda alrededor de la Antártica un gradiente a gran escala entre una comunidad dominada por suspensívoros sésiles revelando biomasa y abundancia altas, puede ser distinguida de una comunidad con muy poca epifauna. Sin 178 Gayana 67(2), 2003 embargo, las relaciones con parámetros ambientales son todavía vagamente entendidas. Para el futuro se recomiendan dos enfoques, estudiar preguntas zoogeográficas a la luz de la evolución e identificar procesos clave que desplieguen patrones de biodiversida...

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Peracarid fauna (Crustacea, Malacostraca) of the Northeast Water Polynya off Greenland:documenting close benthic-pelagic coupling in the Westwind Trough

Cited by 74 publications

References 40 publications

Systematics and distribution of cumaceans collected during BENTAR-95 cruise around South Shetland Islands (Antarctica)

Systematics and distribution of cumaceans collected during BENTAR-95 cruise around South Shetland Islands (Antarctica)

Spatial and temporal variation of soft-bottom peracarid (Crustacea: Peracarida) infauna in the Canakkale Strait (Turkey)

Diverse approaches to questions of Biodiversity: German contributions to studies of Marine Benthos around South America and Antartica

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