Records of the crangonid shrimp genus Pontocaris Bate, 1888 (Crustacea: Decapoda: Caridea) from Chinese waters, with notes on biology of P. pennata Bate, 1888

Zootaxa ◽  
2008 ◽  
Vol 1807 (1) ◽  
pp. 47
Author(s):  
QINGXI HAN ◽  
XINZHENG LI
Keyword(s):  
Coastal Waters ◽  
Seasonal Changes ◽  
Common Species ◽  
Beibu Gulf ◽  
Chinese Waters ◽  
Océanographic Survey ◽  
Gulf Of Tonkin ◽  
The Mainland Of China ◽  
De Man ◽  
First Time

Based on the material collected mainly by the National Comprehensive Oceanography Survey (1959) and the ChinaVietnam Comprehensive Oceanographic Survey to Beibu Gulf (Gulf of Tonkin) (1959–1960, 1962) from coastal waters of the mainland of China, four Pontocaris species, P. hilarula (De Man, 1918), P. major Chan, 1996, P. pennata Bate, 1888 and P. sibogae (De Man, 1918), are reported in the present paper, of which the former two are reported for the first time from Chinese waters. The seasonal changes of the population of the most common species, P. pennata, are discussed.

The parasitic barnacle Sacculina lata Boschma, 1933 (Cirripedia, Rhizocephala, Sacculinidae) infecting the commercial swimming crab Charybdis miles (De Haan, 1835) (Decapoda, Portunidae) in the Beibu Gulf, South China Sea

Crustaceana ◽  
2018 ◽  
Vol 91 (5) ◽  
pp. 577-590 ◽  
Author(s):  
Chang-Ping Yang ◽  
Dian-Rong Sun ◽  
Yong-Song Qiu ◽  
Yan Liu ◽  
Binbin Shan ◽  
...  
Keyword(s):  
Carapace Width ◽  
Hainan Island ◽  
Beibu Gulf ◽  
Female Crab ◽  
Infected Female ◽  
Exclusive Economic Zones ◽  
Gulf Of Tonkin ◽  
Wet Weight ◽  
Economic Zones ◽  
First Time

Abstract A sacculinid rhizocephalan parasite, Sacculina lata Boschma, 1933, was discovered in the Beibu Gulf (= Gulf of Tonkin) west of Hainan Island, China, occurring in 7.4% of 363 Charybdis miles (De Haan, 1835) collected by 30 trawls in July 2017. This is the first time that S. lata has been recorded in Beibu Gulf and in the Chinese Exclusive Economic Zones (EEZs). Of the sampled crabs from 9 stations, 8 males and 19 females were found bearing externae of S. lata on the abdomen, a prevalence of 4.1 and 11.2% in male and female crabs, respectively. The dominant size group of infected males was larger than that of females. There was no significant relationship between water depth and infection rate of the parasite. A positive correlation was found both between volume and weight of externae, and between surface area of externae and abdomen width of the host crabs. Carapace width and wet weight of infected crabs were significantly less than those of uninfected crabs. In male crabs, the first pleopods of infected individuals were shorter than normal, but their pleons were wider. The propodus of the chela of a parasitized crab was significantly larger than that of normal crabs, both in males and females. No rhizocephalan-infected female crab was found bearing eggs.

The revision of lichens, lichenicolous and non-lichenized fungi from the Vodlozersky National Park (Republic of Karelia, Russia) in the Herbarium of the Botanical Museum, University of Helsinki

2019 ◽  
Vol 53 (2) ◽  
pp. 337-348
Author(s):  
V. N. Tarasova ◽  
T. Ahti ◽  
O. Vitikainen ◽  
A. V. Sonina ◽  
L. Myllys
Keyword(s):  
National Park ◽  
Common Species ◽  
Lichenized Fungi ◽  
Herbarium Specimens ◽  
Lichenicolous Fungi ◽  
Biogeographic Province ◽  
Botanical Museum ◽  
The Republic ◽  
First Time ◽  
Lichen Flora

This is a report of a revision of 565 herbarium specimens of lichens, lichenicolous or non-lichenized fungi and additional locality records of common species produced from a visit of the Russian-Finnish expedition to Vodlozersky National Park right after its foundation in 1991. The analyzed collection and field records represent the earliest information about the lichen flora of the territory of the park. In total, 177 species are listed including 173 lichens, 3 non-lichenized and 1 lichenicolous fungi. Xylographa rubescens is new to the Republic of Karelia. Twenty two species are reported for the first time for biogeographic province Karelia transonegensis; 47 species for the Karelian part of Vodlozersky National Park; and 17 species for the whole territory of the park.

ANALYSIS OF THE FUNCTIONING OF MARINE ECOSYSTEMS ON CHANGING THE PARAMETERS OF THE BIOLUMINESCENCE FIELD ON THE CRIMEAN BLACK SEA SHELF

2017 ◽  
Author(s):  
Svetlana Rubtsova ◽  
Svetlana Rubtsova ◽  
Natalya Lyamina ◽  
Natalya Lyamina ◽  
Aleksey Lyamin ◽  
...  
Keyword(s):  
Black Sea ◽  
Field Intensity ◽  
Deep Water ◽  
Coastal Waters ◽  
Integrated Management ◽  
Abiotic Factors ◽  
Environmental Safety ◽  
The Black Sea ◽  
Intensity Increase ◽  
First Time

The concept of a new approach to environmental assessment is offered in the system of integrated management of the resource and environmental safety of the coastal area of the Black Sea. The studies of the season and daily changeability in the bioluminescence field in the Sevastopol coastal waters has been conducted. For the first time considerable differences in the bioluminescence field seasonal changes in the surface and deep water layers and the reasons conditioning this phenomenon have been shown, using a method of multidimensional statistical analysis. The bioluminescence field vertical profile change in the Black sea coastal waters in the autumn period at night has been studied. It has been shown that according to the character of bioluminescence parameters dynamics a water column can be divided into layers: upper (0 – 35 m) and deep water (36 – 60 m). It has been revealed that life rhythms of the plankton community are the main reason for the bioluminescence field intensity variability. It has been revealed that 14-hour periodicity of the bioluminescence field is related to the changes in light and its variations with 2,5…4,5 hours are conditioned by planktonts endogenous daily rhythms. And here biotic factors effect mostly periodicity of the bioluminescence field intensity increase and fall down at the dark time of the day. Abiotic factors are of less importance in circadian rhythmic of the bioluminescence field in the neritic zone.

Two new species of medusae (Cnidaria) from the coastal waters of the northern Beibu Gulf

2020 ◽  
Vol 39 (12) ◽  
pp. 82-89
Author(s):  
Xiaoyin Chen ◽  
Yanyan Yang ◽  
Yanguo Wang ◽  
Zhenzu Xu ◽  
Mao Lin ◽  
...  
Keyword(s):  
New Species ◽  
Coastal Waters ◽  
Beibu Gulf ◽  
Two New Species

scholarly journals Structure of three subtropical bat assemblages (Chiroptera) in the Andean rainforests of Argentina

Mammalia ◽  
2016 ◽  
Vol 80 (1) ◽  
Author(s):  
Mariano S. Sánchez
Keyword(s):  
Species Richness ◽  
Relative Abundance ◽  
Seasonal Changes ◽  
Common Species ◽  
Guild Structure ◽  
Trophic Guild ◽  
Long Tail ◽  
Mist Net ◽  
Yungas Forests

AbstractI evaluated bat assemblages in terms of species richness, relative abundance, trophic guild structure, and seasonal changes at three sites along of the Southern Yungas forests. A total of 854 individuals were captured, representing 25 species of three families, with an effort of 27,138 m of mist net opened per hour. Subtropical assemblages showed a similar structure to those from tropical landmark, with a dominance of frugivorous Phyllostomid; in addition, a few species were abundant, followed by a long tail of less common species. However, subtropical sites differed due to the dominance of the genus

scholarly journals The caridean shrimps of the genus Lysmata Risso, 1816 (Decapoda: Lysmatidae) from Madagascar collected during the Atimo-Vatae expedition: a new species and two new records

2021 ◽  
Vol 774 ◽  
pp. 155-177
Author(s):  
Hossein Ashrafi ◽  
J. Antonio Baeza ◽  
Zdeněk Ďuriš
Keyword(s):  
New Species ◽  
New Records ◽  
Original Description ◽  
Western Atlantic ◽  
West Pacific ◽  
Phylogenetic Studies ◽  
The Caribbean ◽  
De Man ◽  
First Time ◽  
A New Species

The present study focuses on shrimps belonging to the genus Lysmata Risso, 1816, collected from Madagascar during the Atimo Vatae expedition carried out in 2010. Lysmata malagasy sp. nov. is a new species belonging to the clade named “long accessory ramous” or “cosmopolitan” in previous phylogenetic studies. The new species can be distinguished from the only two other representatives of this group in the Indo-west Pacific, L. ternatensis De Man, 1902, and L. trisetacea (Heller, 1861), by the accessory ramus of the lateral antennular flagellum consisting of four elongated articles. Lysmata lipkei Okuno & Fiedler, 2010 is reported here from Madagascar with a remarkable extension of its known range after its original description from Japan. This species has also been reported from Singapore and, as alien species, from Brazil. Lastly, L. kuekenthali De Man, 1902 known from numerous localities in the Indo-West Pacific biogeographic area, is reported for the first time from Madagascar. Results of the present morphological and molecular analyses suggest that L. hochi Baeza & Anker, 2008 from the Caribbean Sea is a synonym of the Indo-West Pacific L. kuekenthali, and thus the latter species is alien in the western Atlantic.

scholarly journals ASSESSMENT OF THE CURRENT STATE OF COASTAL WATERS OF THE SOUTHERN PART OF LAKE BAIKAL ON SANITARY AND MICROBIOLOGICAL INDICATORS WITH USE OF THE TEST SYSTEMS

2018 ◽  
pp. 54-58
Author(s):  
I.V. Mosharova ◽  
V.V. Il’inskij ◽  
O.V. Il’ina
Keyword(s):  
Lake Baikal ◽  
Coastal Waters ◽  
Test Systems ◽  
Current State ◽  
Wide Range ◽  
Microbial Number ◽  
Southern Site ◽  
First Time ◽  
Number Of Bacteria ◽  
Microbiological Indicators

Sanitary and microbiological researches of a coastal surface water of the southern part of Lake Baikal (from the Listvyanka to the Tanghui) were conducted in June, 2017. Total number of bacteria varied over a wide range – from 0.93 million сells/ml up to 2:05 million сells/ml, with an average 1.41 ± 0.3 million сells/ml. Biomass of bacteria varied from 11.05 to 305.00 mg С/m3, with an average of 123.34 mg С/m3. Coastal waters of the southern site of Lake Baikal mainly had a beta-meso-saprobic status in June, 2017. The total microbial number was determined with the use of the test systems for the first time. The values of the total microbial number were less than 1 000 COU/ml and varied from 9 to 412 COU/ml. Innovative test systems Petrifilm are of great interest for rapid assessments of the sanitary and microbiological status of reservoirs directly in the field conditions.

scholarly journals Morphology and ecology of Thalassiosira Cleve (Bacillariophyta) species rarely recorded in Brazilian coastal waters

2009 ◽  
Vol 69 (4) ◽  
pp. 1059-1071 ◽  
Author(s):  
M. Garcia ◽  
C. Odebrecht
Keyword(s):  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Water Temperature ◽  
Wide Temperature Range ◽  
Coastal Waters ◽  
Light Microscope ◽  
Temperature Range ◽  
The World ◽  
First Time ◽  
Scanning Electron

The detailed description of rarely recorded Thalassiosira species in Brazil is presented with light microscope (LM) and scanning electron microscope (SEM) illustrations. A total of 78 phytoplankton net samples (20 µm) collected between the years 2000 and 2006 in coastal waters of southern Brazilian, Cassino Beach and the estuary of Lagoa dos Patos, were studied in cleaned material using the Axiovert Zeiss LM and Jeol 6060 SEM. Water temperature and salinity of samples and six species are presented: Thalassiosira endoseriata, T. hendeyi, T. lundiana, T. minuscula, T. oceanica and T. wongii. Two species, Thalassiosira hendeyi and T. endoseriata were the most common being observed in all seasons at Cassino Beach in a wide temperature range (10-26 ºC), while only sporadically in the estuary of Lagoa dos Patos. Thalassiosira endoseriata, T. lundiana, T. oceanica and T. wongii are for the first time reported in Brazilian coastal waters. The latter two species, rarely recorded in the world, are fully illustrated based on Brazilian material.

The coastal fishes of Madeira Island-new records and an annotated check-list

Zootaxa ◽  
2008 ◽  
Vol 1715 (1) ◽  
pp. 1 ◽  
Author(s):  
PETER WIRTZ ◽  
RONALD FRICKE ◽  
MANUEL JOSÉ BISCOITO
Keyword(s):  
Coastal Waters ◽  
New Records ◽  
Check List ◽  
Rhincodon Typus ◽  
Madeira Island ◽  
Registration Errors ◽  
Megalops Atlanticus ◽  
First Time

A check-list of the coastal fishes of Madeira Island is presented. The species Rhincodon typus, Megalops atlanticus, Apterichtus caecus, Apterichtus sp., Chelidonichthys lucernus, Caranx crysos, Lutjanus goreensis, Crystallogobius linearis, and Canthidermis sufflamen are recorded for the first time from Madeira waters. We have recognized 13 previous records as identification errors or registration errors and indicate 14 other records as doubtful. Including the nine new records, we list 226 species from the coastal waters of Madeira Island.

scholarly journals Seasonal Changes in Microbial Dissolved Organic Sulfur Transformations in Coastal Waters

2020 ◽  
Vol 8 (3) ◽  
pp. 337
Author(s):  
Joanna L Dixon ◽  
Frances E Hopkins ◽  
John A Stephens ◽  
Hendrik Schäfer
Keyword(s):  
Coastal Waters ◽  
Seasonal Changes ◽  
Significant Loss ◽  
Trace Gas ◽  
Organic Sulfur ◽  
Consumption Rates ◽  
Atmospheric Sulfur ◽  
Sulfur Transformation ◽  
Microbial Consumption ◽  
Biogenic Source

The marine trace gas dimethylsulfide (DMS) is the single most important biogenic source of atmospheric sulfur, accounting for up to 80% of global biogenic sulfur emissions. Approximately 300 million tons of DMS are produced annually, but the majority is degraded by microbes in seawater. The DMS precursor dimethylsulfoniopropionate (DMSP) and oxidation product dimethylsulphoxide (DMSO) are also important organic sulfur reservoirs. However, the marine sinks of dissolved DMSO remain unknown. We used a novel combination of stable and radiotracers to determine seasonal changes in multiple dissolved organic sulfur transformation rates to ascertain whether microbial uptake of dissolved DMSO was a significant loss pathway. Surface concentrations of DMS ranged from 0.5 to 17.0 nM with biological consumption rates between 2.4 and 40.8 nM·d−1. DMS produced from the reduction of DMSO was not a significant process. Surface concentrations of total DMSO ranged from 2.3 to 102 nM with biological consumption of dissolved DMSO between 2.9 and 111 nM·d−1. Comparisons between 14C2-DMSO assimilation and dissimilation rates suggest that the majority of dissolved DMSO was respired (>94%). Radiotracer microbial consumption rates suggest that dissimilation of dissolved DMSO to CO2 can be a significant loss pathway in coastal waters, illustrating the significance of bacteria in controlling organic sulfur seawater concentrations.

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