Lidar remote sensing of phytoplankton in the North-Western Atlantic

2002 ◽  
Author(s):  
M.Yu. Gorbunov ◽  
A.M. Chekalyuk
Keyword(s):  
Remote Sensing ◽  
Western Atlantic ◽  
The North ◽  
North Western

scholarly journals HYPERSPECTRAL REMOTE SENSING FOR TEMPERATE HORTICULTURE FRUIT CROPS IN NORTHERN-WESTERN HIMALAYAN REGION: A REVIEW

2019 ◽  
Vol XLII-3/W6 ◽  
pp. 333-338
Author(s):  
P. Upadhyay ◽  
D. Uniyal ◽  
M. P. S. Bisht
Keyword(s):  
Remote Sensing ◽  
Land Cover ◽  
Himalayan Region ◽  
Specific Class ◽  
Fruit Crops ◽  
Spectral Library ◽  
Indian States ◽  
The North ◽  
Hyper Spectral ◽  
North Western

<p><strong>Abstract.</strong> The North-Western Indian States and the North-Eastern Indian States of Indian Himalayan Region (IHR) are rich of various temperate horticulture fruits such as the Apple, Pear, Peach, Plum, Apricot, Sweet Cherry and Sour Cherry. These horticulture fruits are majorly grown in North-western region comprising of Jammu and Kashmir (J&amp;amp;K), Himachal Pradesh (H.P.) and Uttarakhand (U.K.). These states of IHR share the same type of geographical and climatic condition and having nearly common flora and fauna. Out of the various horticulture temperate fruit crops apple and apricot have the potential to make a positive impact on economy of these states. Hyper-spectral remote sensing due to its capability of identifying the small variations within a particular feature (or land cover) is an important tool for discriminating or mapping the specific land cover among the various existing classes. Contrary to multispectral remote sensing, it is not only capable of mapping the vegetation class among the various classes in the land but also has the potential to discriminate within the different classes of vegetation as well as diseases identification within a class. This specific class level discrimination of vegetation is an important tool for mapping. In hyper-spectral remote sensing this variation is observed through the possible discrimination of spectral signatures of various vegetation classes. Thus, due to its fine spectral bands this type of remote sensing data has the potential to map the horticulture crops. However, the processing of hyper-spectral data always require the in-situ measurements or existing spectral library. Such a type of spectral library is never generated for the horticulture crops of IHR. This can be further useful for identifying the disease affected crops and input for developing model for estimation of biophysical and biochemical parameters. Therefore, in this study, a need for the development of spectral library for temperate horticulture crop has been highlighted. Further, a methodology for the processing of hyperspectral data has also be proposed.</p>

First Record of the Cornich Blackfish Schedophilus Medusophagus (Pisces: Centrolophidae) Larvae from the Adriatic Sea

1998 ◽  
Vol 78 (3) ◽  
pp. 1035-1038 ◽  
Author(s):  
Jakov Dulčić
Keyword(s):  
Adriatic Sea ◽  
First Record ◽  
Western Mediterranean ◽  
Western Atlantic ◽  
The North ◽  
Pelagia Noctiluca ◽  
North Eastern ◽  
The Town ◽  
North Western ◽  
Mesopelagic Species

The capture of the cornich blackfish, Schedophilus medusophagus, larvae from the Adriatic Sea represents an easterly extension in range of this species, and the first larval record in Adriatic waters.Schedophilus medusophagus Cocco, 1839, is a mesopelagic species from temperate waters of the north-eastern and north-western Atlantic and the western Mediterranean (Bini, 1968; Tortonese, 1975; Haedrich, 1986). The first record of this fish from the Adriatic Sea was reported in 1880 according to Ninni (1912). The second record was during the invasion of medusae Pelagia noctiluca (Malej, 1982; Rottini-Sandrini & Stravisi, 1982; Vučetić, 1982,1983) in Pelješac channel near the town of Korčula-island Koršula (central Adriatic) in 1982 (Onofri, 1986). Ten juvenile specimens, from 10·0 to 20·0cm total length (TL), were collected with medusae at 2m depth. This record Onofri (1986) connected with the ingression of inter-median waters (50–100 m) in the central Adriatic influenced the increase of salinity and temperature in 1982. Jardas (1996) noted that S. medusophagus is a very rare species in the Adriatic Sea.

Shell morphology of larval and post-larval mytilids from the north-western Atlantic

1989 ◽  
Vol 69 (1) ◽  
pp. 181-218 ◽  
Author(s):  
S. Cynthia Fuller ◽  
Richard A. Lutz
Keyword(s):  
Mytilus Edulis ◽  
Shell Height ◽  
Sympatric Species ◽  
Shell Morphology ◽  
Scanning Electron Micrographs ◽  
Geukensia Demissa ◽  
Western Atlantic ◽  
The North ◽  
Number Of Teeth ◽  
North Western

Comparison of early shell morphological features of six mytilids from the north-western Atlantic revealed differences useful for species identification and classification. Brachidontes exustus, lschadium recurvum, Geukensia demissa, Amygdalum papyrium, Mytilus edulis, and Modiolus modiolus larvae and post-larvae were cultured in the laboratory. Scanning electron micrographs of the shell and hinge during early ontogenetic stages showed that all species had a long provinculum with taxodont dentition. In addition, provinculum length and number of teeth increased during the larval period in the six species. The small, numerous provincular teeth of Mytilus edulis and the bold, comparatively few provincular teeth of Amygdalum papyrium clearly differentiated these two species. Most species had a low umbo, round posterior margin, and more pointed anterior margin, although Amygdalum papyrium was distinguished by a high, prominent umbo. Distinction of Geukensia demissa and lschadium recurvum larval shells was difficult due to similarity in their shapes and hinge dentition. However, discriminant analysis using larval shell length, shell height, provinculum length, and number of teeth aided in classification of these and other sympatric species.

scholarly journals A database of Holocene temperature records for north‐eastern North America and the north‐western Atlantic

2020 ◽  
Vol 7 (1) ◽  
pp. 38-43
Author(s):  
Simon van Bellen ◽  
Anne de Vernal ◽  
Anna To ◽  
Marie‐Michèle Ouellet‐Bernier ◽  
Natasha Roy ◽  
...  
Keyword(s):  
North America ◽  
Eastern North America ◽  
Western Atlantic ◽  
The North ◽  
North Eastern ◽  
Temperature Records ◽  
North Western

scholarly journals Latitudinal distributions of particulate carbon export across the North Western Atlantic Ocean

2017 ◽  
Vol 129 ◽  
pp. 116-130 ◽  
Author(s):  
Viena Puigcorbé ◽  
Montserrat Roca-Martí ◽  
Pere Masqué ◽  
Claudia Benitez-Nelson ◽  
Michiel Rutgers van der Loeff ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Particulate Carbon ◽  
Carbon Export ◽  
Western Atlantic ◽  
Western Atlantic Ocean ◽  
The North ◽  
North Western

A new species of the deepwater shrimp genusLeontocaris(Hippolytidae: Caridea) from the South Mid-Atlantic Ridge

2012 ◽  
Vol 92 (5) ◽  
pp. 1083-1088 ◽  
Author(s):  
I.A. Cardoso ◽  
C.H.J.M. Fransen
Keyword(s):  
New Species ◽  
Deep Sea ◽  
Distal Margin ◽  
The South ◽  
Western Atlantic ◽  
The North ◽  
Mid Atlantic Ridge ◽  
Mandibular Palp ◽  
Seamount Chain ◽  
North Western

The hippolytid genusLeontocarisincludes eight species, all restricted to the deep sea (240–2182 m). Associations with deep sea coralline habitats were reported and are herein confirmed. Three Australian species were recorded at seamounts as were the specimens herein identified asL. smarensissp. nov. These specimens were sampled at the South Mid-Atlantic Ridge (SMAR) by the Mar Eco project during 12 bottom trawls using a Sigsbee trawl. The SMAR is a seamount chain that rises from 4000 m depth, with mountains of 100–200 km wide and 14,000 km length.Leontocaris smarensissp. nov. shows closest affinity toL. larfrom the north-western Atlantic andL. yarramundi, from Australia and New Zealand. It differs fromL. larmainly in: (1) the scaphocerite distolateral tooth reaching the distal margin of the blade while clearly falling short in the latter species; and (2) the mandibular palp possessing three distal setae while setae are absent inL. lar. The new species differs fromL. yarramundiin the number and disposition of dorsal teeth on rostrum and in the absence of an acute posterolateral spine on abdominal somites 4 and 5.

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