scholarly journals Climate and season are associated with prevalence and distribution of trans-hemispheric blue crab reovirus (Callinectes sapidus reovirus 1)

2020 ◽  
Vol 647 ◽  
pp. 123-133
Author(s):  
M Zhao ◽  
DC Behringer ◽  
J Bojko ◽  
AS Kough ◽  
L Plough ◽  
...  
Keyword(s):  
Life History ◽  
Blue Crab ◽  
Callinectes Sapidus ◽  
Atlantic Coast ◽  
High Water ◽  
Western Atlantic ◽  
Reverse Transcription Pcr ◽  
Host Life ◽  
Underlying Mechanisms ◽  
The Many

Among the many Callinectes spp. across the western Atlantic, the blue crab C. sapidus has the broadest latitudinal distribution, encompassing both tropical and temperate climates. Its life history varies latitudinally, from extended overwintering at high latitudes to year-round activity in tropical locations. Callinectes sapidus reovirus 1 (CsRV1) is a pathogenic virus first described in North Atlantic C. sapidus and has recently been detected in southern Brazil. Little information exists about CsRV1 prevalence at intervening latitudes or in overwintering blue crabs. Using a quantitative reverse transcription PCR (RT-qPCR) method, this study investigated CsRV1 prevalence in C. sapidus across latitudinal differences in temperature and crab life history, as well as in additional Callinectes spp. and within overwintering C. sapidus. CsRV1 prevalence in C. sapidus was significantly correlated with high water temperature and blue crab winter dormancy. Prevalence of CsRV1 in C. sapidus on the mid-Atlantic coast was significantly lower in winter than in summer. CsRV1 infections were not detected in other Callinectes spp. These findings revealed that CsRV1 is present in C. sapidus across their range, but not in other Callinectes species, with prevalence associated with temperature and host life history. Such information helps us to better understand the underlying mechanisms that drive marine virus dynamics under changing environmental conditions.

Growth of blue crab, Callinectes sapidus, in the Yumurtalik Cove, Turkey: a molt process approach

2014 ◽  
Vol 9 (1) ◽  
pp. 49-57 ◽  
Author(s):  
Canan Bilen ◽  
Irem Yesilyurt
Keyword(s):  
Blue Crab ◽  
Process Model ◽  
Callinectes Sapidus ◽  
Eastern Mediterranean ◽  
Carapace Width ◽  
Degree Days ◽  
Western Atlantic ◽  
North Eastern ◽  
The Mean ◽  
Discontinuous Growth

AbstractThe blue crab (Callinectes sapidus) is native to the western Atlantic, but is an invasive species in the Mediterranean. This study examined the dynamics of growth in an invasive population of blue crab in the Yumurtalık Cove, Turkey (North Eastern Mediterranean). Growth was quantified using a discontinuous growth model, a molt process model. Crab growth histories were observed for individual crabs held in field enclosures in summer 2010 and 2011. Carapace widths ranged from 14.13 to 80.07 mm. A mean growth per molt of 120.6% increase in carapace width was observed. Chronological inter-molt periods ranging between 3 days and 67 days were observed. The average IMP was 16 days in Yumurtalık Cove. The mean physiological IMP was 270±163 degree-days, ranging from 72–781 degree-days.

The Role of Alternate Hosts in the Ecology and Life History of Hematodinium sp., a Parasitic Dinoflagellate of the Blue Crab (Callinectes sapidus)

2012 ◽  
Vol 98 (1) ◽  
pp. 73-84 ◽  
Author(s):  
Katrina M. Pagenkopp Lohan ◽  
Kimberly S. Reece ◽  
Terrence L. Miller ◽  
Kersten N. Wheeler ◽  
Hamish J. Small ◽  
...  
Keyword(s):  
Life History ◽  
Blue Crab ◽  
Callinectes Sapidus ◽  
Alternate Hosts ◽  
History Of

scholarly journals An evaluation of the synchronization in the dynamics of blue crab(Callinectes sapidus)populations in the western Atlantic

2013 ◽  
Vol 23 (2) ◽  
pp. 132-146 ◽  
Author(s):  
A.R. Colton ◽  
M.J. Wilberg ◽  
V.J. Coles ◽  
T.J. Miller
Keyword(s):  
Blue Crab ◽  
Callinectes Sapidus ◽  
Western Atlantic

Juveniles recruitment and daily growth of the southern stock of Mugil liza (Actinopterygii; Fam. Mugilidae): new evidence for the current life-history model

2017 ◽  
Vol 99 (1) ◽  
pp. 215-221 ◽  
Author(s):  
Damián L. Castellini ◽  
Daniel Brown ◽  
Nicolás A. Lajud ◽  
Juan M. Díaz De Astarloa ◽  
Mariano González-Castro
Keyword(s):  
Life History ◽  
Fishery Management ◽  
Atlantic Coast ◽  
Age Determination ◽  
Calculated Data ◽  
Small Scale ◽  
Daily Growth ◽  
Western Atlantic ◽  
Fishery Resource ◽  
Growth Increments

Mugil liza is distributed along the western Atlantic coast. It is a commercially exploited species in Argentina, supporting a small-scale fishery conducted by an artisanal fleet. Age determination of fishes constitutes an important key issue for fishery management. The age, growth and recruitment of M. liza juveniles in Mar Chiquita coastal lagoon and Las Brusquitas creek (Buenos Aires, Argentina), were estimated by means of the analysis of the sagittal otoliths of fish collected during January to December of 2014. Ages were estimated by counting and measuring daily growth increments in otoliths under a light microscope. A total of 735 specimens ranging from 19 to 71.5 mm SL and from 67 to 212 days age was analysed. Lengths at previous ages were determined by back-calculation, a linear growth model was fitted to the back-calculated data: SL = 0.2468 + 2.0516; R2 = 0.9945. Two peaks of recruiters were observed from February to March, and from October to November in 2014. Mean ages in days of Querimana and juveniles at the recruitment time were 84.07 ± 14.43 days and 87.56 ± 19.51 days, respectively. The hatching dates of specimens showed two spawning seasons. One was from December 2013 to January 2014, and the second one from July to August 2014. The assessment carried on this work generated age determination values that support previous findings, contributing to make a more accurate description of the life-history model currently used. In addition, valuable information has been generated to give better advice for improving the management of the fishery resource.

scholarly journals A global occurrence database of the Atlantic blue crab Callinectes sapidus

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Giorgio Mancinelli ◽  
Roberta Bardelli ◽  
Argyro Zenetos
Keyword(s):  
New England ◽  
Blue Crab ◽  
Callinectes Sapidus ◽  
Western Atlantic ◽  
Online Databases ◽  
Distribution Ranges ◽  
Severe Reduction ◽  
Technical Validation ◽  
Validation Procedure ◽  
Northward Expansion

AbstractThe Atlantic blue crab Callinectes sapidus is a portunid native to the western Atlantic, from New England to Uruguay. The species was introduced in Europe in 1901 where it has become invasive; additionally, a significant northward expansion has been emphasized in its native range. Here we present a harmonized global compilation of C. sapidus occurrences from native and non-native distribution ranges derived from online databases (GBIF, BISON, OBIS, and iNaturalist) as well as from unpublished and published sources. The dataset consists of 40,388 geo-referenced occurrences, 39,824 from native and 564 from non-native ranges, recorded in 53 countries. The implementation of quality controls imposed a severe reduction, in particular from online databases, of the records selected for inclusion in the dataset. In addition, a technical validation procedure was used to flag entries showing identical coordinates but different year of record, in-land occurrences and those located close to the coast. Similarly, a flagging system identified entries outside the known distribution of the species, or associated with unsuccessful introductions.

scholarly journals Larvae of the blue crab Callinectes sapidus Rathbun, 1896 (Decapoda: Brachyura: Portunidae) in the Balearic Archipelago (NW Mediterranean Sea)

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Lydia Png-Gonzalez ◽  
Vanesa Papiol ◽  
Rosa Balbín ◽  
Joan Enric Cartes ◽  
Aina Carbonell
Keyword(s):  
Life History ◽  
Mediterranean Sea ◽  
Blue Crab ◽  
Callinectes Sapidus ◽  
Maritime Transport ◽  
Surface Currents ◽  
Introduction Pathways ◽  
Nw Mediterranean ◽  
History Of ◽  
Nw Mediterranean Sea

AbstractThe invasive blue crab Callinectes sapidus has been frequently recorded during the last years along the NW Mediterranean Sea, leading to established populations. Two megalopae of C. sapidus were found during two different oceanographic surveys in open waters of the Balearic Archipelago, in July 2005 and October 2011, previous to the first reference of adult specimens documented in the Balearic sub-basin. The analyzed environmental conditions of the sampling periods allowed us to hypothesize the likely introduction pathways, namely by maritime transport and surface currents. Furthermore, the recorded megalopae seem to enlarge the life history of C. sapidus in regard to its native area, where spawning peaks occur in late July and early August.

scholarly journals Chromosome-level Genome Assembly of the Blue Crab, Callinectes sapidus

2021 ◽  
Author(s):  
Tsvetan R Bachvaroff ◽  
Ryan C McDonald ◽  
Louis V Plough ◽  
J Sook Chung
Keyword(s):  
Blue Crab ◽  
Developmental Stages ◽  
Callinectes Sapidus ◽  
Atlantic Coast ◽  
Portunus Trituberculatus ◽  
Protein Coding ◽  
Important Species ◽  
Protein Coding Genes ◽  
Repeat Content ◽  
Chromosome Level

Abstract The blue crab, Callinectes sapidus (Rathbun, 1896) is an economically, culturally, and ecologically important species found across the temperate and tropical North and South American Atlantic coast. A reference genome will enable research for this high-value species. Initial assembly combined 200x coverage Illumina paired-end reads, a 60x 8 kb mate-paired library, and 50x PacBio data using the MaSuRCA assembler resulting in a 985 Mb assembly with a scaffold N50 of 153 kb. Dovetail Chicago and HiC sequencing with the 3d DNA assembler and Juicebox assembly tools were then used for chromosome scaffolding. The fifty largest scaffolds span 810 Mb are 1.5 to 37 Mb long and have a repeat content of 36%. The 190 Mb unplaced sequence is in 3921 sequences over 10kb with a repeat content of 68%. The final assembly N50 is 18.9 Mb for scaffolds and 9317 bases for contigs. Of arthropod BUSCO, ∼88% (888/1,013) were complete and single copies. Using 309 million RNAseq read pairs from 12 different tissues and developmental stages, 25,249 protein-coding genes were predicted. Between C. sapidus and Portunus trituberculatus genomes, 41 of 50 large scaffolds had high nucleotide identity and protein-coding synteny, but nine scaffolds in both assemblies were not clear matches. The protein-coding genes included 9423 one-to-one putative orthologs, of which 7165 were syntenic between the two crab species. Overall, the two crab genome assemblies show strong similarities at the nucleotide, protein, and chromosome level and verify the blue crab genome as an excellent reference for this important seafood species.

Sign in / Sign up

Export Citation Format

Share Document