Large scale northward expansion of warm water species Skeletonema tropicum (Bacillariophyceae) in China seas

Determining optimal temperature and salinity for marine organisms is a challenge for marine ecologists because not every species can be easily maintained in the laboratory for testing the influence of environmental parameters. To find a simple method to estimate the optimal temperature and salinity for marine organisms based on survey data, a reciprocal quadratic yield-density model was used for determining the optimal temperature or salinity from abundance data for six pelagic Chaetognatha species. The data for the modelling were collected in four surveys in the East China Sea (23°30′–33°N 118°30′–128°E) from 1997 to 2000. According to both survey data and results from the models, we analysed qualitatively and quantitatively the ecological characteristics of those species. Estimated optimal temperatures and salinities are 17.3°C and 14.1‰ for Sagitta nagae, 20.3°C and 13.8‰ for S. bedoti, 24.9°C and 32.9‰ for S. enflata, 22.5°C and 16.5‰ for S. ferox, 24.5°C and 34.1‰ for S. pacifica and 17.3°C and 14.1‰ for S. pulchra, respectively. Three ecological groups were evident in the East China Sea: the neritic, warm temperate water species (S. nagae); the neritic, warm water species (S. pulchra, S. ferox and S. bedoti); and the oceanic, warm water species (S. enflata and S. pacifica). Our results validate that the model is applicable for describing the relationship between chaetognaths abundance and temperature or salinity.

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Climate change and warm-water species at the north-western boundary of the Mediterranean Sea

Marine Ecology ◽

10.1111/maec.12277 ◽

2015 ◽

Vol 36 (4) ◽

pp. 897-909 ◽

Cited By ~ 25

Author(s):

Valeriano Parravicini ◽

Luisa Mangialajo ◽

Laure Mousseau ◽

Andrea Peirano ◽

Carla Morri ◽

...

Keyword(s):

Climate Change ◽

Mediterranean Sea ◽

Warm Water ◽

Western Boundary ◽

Warm Water Species ◽

The North ◽

The Mediterranean ◽

North Western ◽

Water Species

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Seasonal cycles of activity and inactivity in some hydroids from Virginia and South Carolina, U.S.A.

Canadian Journal of Zoology ◽

10.1139/z90-065 ◽

1990 ◽

Vol 68 (3) ◽

pp. 442-450 ◽

Cited By ~ 42

Author(s):

Dale R. Calder

Keyword(s):

South Carolina ◽

Water Temperature ◽

Cold Water ◽

Warm Water ◽

Late Winter ◽

Tissue Water ◽

Warm Water Species ◽

Temperature Regimes ◽

Water Species ◽

Cold Water Species

Hydroids investigated in estuaries of Virginia and South Carolina, USA, were characteristically seasonal in occurrence. Of 20 species studied in Virginia, 14 were active only during warmer months and 6 only during colder months of the year. Seven of the 18 species examined in South Carolina were active all year, whereas 9 were active only in warmer months and 2 only during colder months. Reflecting the differing temperature regimes of the two study areas, warm-water species were active for a longer period of time in South Carolina than in Virginia; cold-water species were active longer in Virginia than in South Carolina. Warm-water species commenced activity in late winter or spring at higher temperatures than those coinciding with hydranth regression in autumn or early winter. Activity in cold-water species began at lower temperatures than those observed at regression in spring. Correlations were apparent in the seasonality, water temperature tolerances, and latitudinal distribution of most species. Field observations and laboratory experiments demonstrated that a number of species survived unfavourable periods as dormant coenosarc in stems and stolons. With the return of favourable conditions, new growth began and hydranths were regenerated from dormant tissue. Water temperature is considered the prime factor influencing the seasonal activity–inactivity cycles of hydroids in the two study areas.

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Warm-water species in the plankton off the English Channel entrance

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315400008390 ◽

1954 ◽

Vol 33 (2) ◽

pp. 345-346 ◽

Cited By ~ 1

Author(s):

J. H. Fraser

Keyword(s):

Warm Water ◽

English Channel ◽

Warm Water Species ◽

Channel Entrance ◽

Water Species

Through the kindness of Dr L. H. N. Cooper of Plymouth I have been given the opportunity of examining some of the plankton samples taken by Surg.-Lt. P. Campbell, R.N.V.R., of H.M.S. Challenger. It is hoped that the results of these and later surveys will be published elsewhere in more detail, and in association with those made by the Scottish research vessels farther north, but two records of unusual interest are brought to notice here. The collections so far examined in detail were taken during April and May 1953, on a line of stations west of the English Channel, from 49° 39′ N., 3° 30′ W. to 47° 16′ N., 17° 52′ W. between 15 and 19 April, and on the return line from 47° 50′ N., 17° 40′ W. to 49° 28′ N., 5° 52′ W. between 25 and 28 May. They were made by 10 min. horizontal hauls at 30 fathoms depth.

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The bluefish Pomatomus saltatrix (Pisces: Pomatomidae) in the Adriatic and Tyrrhenian Seas, can we call it climate invader?

10.31230/osf.io/h8t35 ◽

2020 ◽

Author(s):

Jacopo Cerri ◽

Ernesto Azzurro

Keyword(s):

Invasive Species ◽

Climate Warming ◽

Temporal Dynamics ◽

Small Scale ◽

Ecological Knowledge ◽

Pomatomus Saltatrix ◽

Warm Water Species ◽

Northward Expansion ◽

Spatio Temporal ◽

Water Species

Here, we investigate the recent spatio-temporal dynamics of the bluefish Pomatomus saltatrix, a warm water species, which is considered to have conquered the northern Mediterranean coasts due to climate warming. Capitalizing two independent surveys carried out through online questionnaires and vis-à-vis interviews, we accessed the ecological knowledge of 640 recreational fishers, and 206 small-scale fishers, respectively. Respondents provided coherent evidence of a rapid northward expansion of the bluefish along the Tyrrhenian and Adriatic Seas at an estimated speed of 0.8-1.4 degrees of latitude per year. Most fishers in the two seas believed the bluefish to negatively affect both fishing activities and the environment, just as if it was an invasive species and this negative perception was positively correlated with increasing bluefish abundances. The phenomenological effects of this widespread outbreak can be assimilated to a large invasion across various sectors of the Mediterranean Sea, posing the urgency of manage this issue and better understanding its linkage to climate drivers.

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Largemouth Bass in Ridge Lake, Coles County, Illinois

Illinois Natural History Survey Bulletin ◽

10.21900/j.inhs.v26.177 ◽

1954 ◽

Vol 26 (1-6) ◽

pp. 217-276 ◽

Cited By ~ 3

Author(s):

George W. Bennett

Keyword(s):

Largemouth Bass ◽

The State ◽

Spawning Season ◽

Warm Water ◽

Warm Water Species ◽

Water Species

The present publication is essentially a description of the culling technique of management and its effect upon the largemouth bass in Ridge Lake for an approximate 10-year period beginning with the spring of 1941 and ending after the bass spawning season but before the angling season of 1951. This technique, which is being employed in all recreational lakes built by the state of Illinois, may be depended upon not only to maintain good bass fishing over an indefinite period but to produce superior angling for fish of other warm-water species inhabiting these lakes.

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Euphausiid invasion/dispersal in gulf stream cold-core rings

Marine and Freshwater Research ◽

10.1071/mf9830625 ◽

1983 ◽

Vol 34 (4) ◽

pp. 625 ◽

Cited By ~ 24

Author(s):

PH Wiebe ◽

GR Flierl

Keyword(s):

Gulf Stream ◽

Cold Water ◽

Warm Water ◽

Dispersal Patterns ◽

Near Surface ◽

Warm Water Species ◽

Living Species ◽

Varied Response ◽

Cold Core ◽

Water Species

Invasion/dispersal patterns in the distribution and abundance of euphausiid species in four 2-8-month- old cold-core rings from the Gulf Stream suggest that several different physical exchange mechanisms are operating. The most important of these appear to be horizontal mixing in the mixed layer and exchange due to movement into or out of the trapped region at depth. A zone of minimum exchange is evident between 150 and 400 m. Changes in vertical distribution and abundance of warm-water species invading the ring environs suggest that only a few species, such as Stylocheiron carinatum, are able to penetrate and take advantage of the changing ring conditions in young- to middle-aged rings (2-8 months). Other near-surface warm-water species penetrate at slower rates regardless of whether they are vertical migrators (Euphausia brevis, E. hemigibba, E. tenera, Thysanopoda aequalis) or non-migrators (S. suhmii, S. abbreviatum). Deeper-living species such as S. afine, S. elongatum, Nematoscelis microps, and N. tenella, show minimal penetration of core waters in these four rings. Cold-water species expatriated in cold-core rings also show a varied response to ring decay, with some species disappearing rapidly-3-4 months (Thysanopoda longicaudata)-and others persisting for substantial periods-0.5-1 year (N. megalops, E. krohnii). Distribution of the latter two species indicates dispersal out beyond the ring core at the surface in the case of E. krohnii and at depths of 400-1 000 m in the case of N. megalops.

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Larval development of a barnacle, Balanus spongicola (Cirripedia: Balanidae) reared in the laboratory

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315401004581 ◽

2001 ◽

Vol 81 (5) ◽

pp. 775-779 ◽

Cited By ~ 1

Author(s):

Olga M. Korn ◽

Aleksey S. Elfimov ◽

Natalya V. Skreptsova

Keyword(s):

Larval Development ◽

Thoracic Spine ◽

Anterior Margin ◽

Warm Water ◽

Typical Pattern ◽

Warm Water Species ◽

Medium Length ◽

Naupliar Development ◽

Cephalic Shield ◽

Water Species

The naupliar development of the barnacle Balanus spongicola is described, from larvae reared in the laboratory. The planktotrophic nauplii of B. spongicola reached the cyprid stage 11 days after hatching, at 20°C, and only eight days after hatching, at 25°C. Larval development includes six naupliar and one cyprid stage, following the typical pattern of the thoracican Cirripedia. Naupliar stages have a broad pear-shaped cephalic shield with a straight anterior margin and a pair of fairly short posterior spines in stages IV–VI. Dorsal and marginal spines are absent. Frontolateral horns are of medium length, directed forward from stage III. Small teeth on the median labral lobe found in some warm-water species are only weakly pronounced. The arrangement of abdominal spines and larval setation are in the usual balanoid pattern. The larvae of B. spongicola share some features with earlier described nauplii of Solidobalanus fallax, a non-native UK species inhabiting British waters. Balanus spongicola, however, possess more typical balanoid larvae. Its nauplii are more elongated (the cephalic shield is longer than broad). Thoraco-abdominal processes and posterior shield spines in B. spongicola are shorter than those in S. fallax. The abdominal process remains shorter than the dorsal thoracic spine until stage VI in B. spongicola but becomes nearly equal in S. fallax.

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Warm-water Species in the Plankton off Newfoundland during Winter Months

Nature ◽

10.1038/1911216a0 ◽

1961 ◽

Vol 191 (4794) ◽

pp. 1216-1217 ◽

Cited By ~ 2

Author(s):

V. BAINBRIDGE

Keyword(s):

Warm Water ◽

Warm Water Species ◽

Water Species

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The Back Page: My Favorite Lesson: Angling for Enthusiasm Hooks Students

Mathematics Teacher ◽

10.5951/mt.104.4.0328 ◽

2010 ◽

Vol 104 (4) ◽

pp. 328

Author(s):

Christopher P. Reisch

Keyword(s):

New York ◽

Great Lakes ◽

New York State ◽

Warm Water ◽

Large Lake ◽

York State ◽

Warm Water Species ◽

World Class ◽

Water Species

Western New York State is known for many things, most notably snowfall. Less well known are its resources for year-round world-class fishing. In the Great Lakes tributaries that vein the landscape, warm-water species can be caught throughout the summer months. During the fall, winter, and spring months, these tributaries support large lake-runs of trout and salmon. If you live in western New York, as my students and I do, it is likely that you have angled.

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