The Larvae of Mass Benthic Invertebrate Species in the Plankton of Sevastopol Bay

Life histories of the following 12 benthic invertebrate species were investigated at four sites in the Waitakere River: Potamopyrgus antipodarum (Gastropoda : Hydrobiidae); Paracalliope fluviatilis (Amphipoda : Eusiridae), Zephlebia (Neozephlebia) sp. and Deleatidium spp. (Ephemeroptera : Leptophlebiidae), Hydora nitida (Coleoptera : Elmidae), Maoridiamesa harrisi, ?Austrocladius sp. and Paratanytarsus agameta (Diptera : Chironomidae), Austrosimulium australense (Diptera : Simuliidae), Aoteapsyche colonica (Trichoptera : Hydropsychidae), Oxyethira albireps (Trichoptera : Hydroptilidae), and Olinga feredayi (Trichoptera : Conoesucidae). All species had life cycles which were non-seasonal according to the Hynes model. Comparison with recent studies in southern North Island and South Island streams suggests that non-seasonal life cycles predominate in New Zealand streams.

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Experimental evaluation of the effects of the novel predators, round goby and mud crab on benthic invertebrates in the Gulf of Riga, Baltic Sea

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315417001965 ◽

2017 ◽

Vol 98 (1) ◽

pp. 25-31 ◽

Cited By ~ 1

Author(s):

Kristiina Nurkse ◽

Jonne Kotta ◽

Merli Rätsep ◽

Ilmar Kotta ◽

Randel Kreitsberg

Keyword(s):

Baltic Sea ◽

Round Goby ◽

Benthic Invertebrate ◽

Neogobius Melanostomus ◽

Interactive Effects ◽

Mud Crab ◽

The Baltic Sea ◽

Invertebrate Species ◽

Gulf Of Riga ◽

The Baltic

The number of non-indigenous aquatic species (NIS) has rapidly increased globally. The majority of published evidence on the effects of NIS on local communities is from single species studies in which the interactive effects of NIS are not considered. Here we present experimental evidence of separate and interactive effects of two widespread non-indigenous benthic predators, the round goby (Neogobius melanostomus) and the North American mud crab (Rhithropanopeus harrisii) on benthic invertebrate communities in a shallow coastal ecosystem of the Gulf of Riga, the Baltic Sea. The two species have recently colonized multiple sub-basins of the Baltic Sea and due to their rapid range expansion, increasing densities and local functional novelty, they are expected to have strong separate or interactive effects on native communities. Our laboratory experiment demonstrated that round goby and mud crab exerted a significant predation pressure on different benthic invertebrate species and the effects of the studied predators were largely independent. Predation was stronger at higher temperature compared with low temperature treatment. Among the studied invertebrate species gammarid amphipods were consumed the most. Interestingly, round goby did not prey on the mud crabs despite a large size difference of the studied predators.

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Do Antarctic benthic invertebrates show an extended level of eurybathy?

Antarctic Science ◽

10.1017/s0954102096000028 ◽

1996 ◽

Vol 8 (1) ◽

pp. 3-6 ◽

Cited By ~ 142

Author(s):

T. Brey ◽

C. Dahm ◽

M. Gorny ◽

M. Klages ◽

M. Stiller ◽

...

Keyword(s):

Benthic Invertebrates ◽

Depth Distribution ◽

Benthic Invertebrate ◽

Distribution Data ◽

Antarctic Species ◽

European Species ◽

Invertebrate Species ◽

Antarctic Benthos ◽

Depth Ranges ◽

The Antarctic

Depth distribution data were compared for 172 European and 157 Antarctic benthic invertebrate species occurring in the respective shelf areas. Antarctic species showed significantly wider depth ranges in selected families of the groups Bivalvia, Gastropoda, Amphipoda and Decapoda. No differences were found in Polychaeta, Asteroidea and Ophiuroidea, where European species also showed comparatively wide bathymetric ranges. These extended levels of eurybathy in the Antarctic benthos may be interpreted either as an evolutionary adaptation or pre-adaptation to the oscillation of shelf ice extension during the Antarctic glacial-interglacial cycle.

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