Euryhaliotrema dolichodrilus n. sp. and Euryhaliotrema mimulus n. sp. (Monogenoidea: Dactylogyridae) infecting the gill lamellae of porgies, Calamus spp. (Perciformes: Sparidae) from the Gulf of Mexico off Florida, U.S.A.

Author(s):  
Delane C. Kritsky ◽  
Micah D. Bakenhaster
Keyword(s):  
ZooKeys ◽  
2018 ◽  
Vol 783 ◽  
pp. 125-161 ◽  
Author(s):  
Edgar F. Mendoza-Franco ◽  
Mariela del Carmen Rosado Tun ◽  
Allan de Jesús Duarte Anchevida ◽  
Rodolfo E. del Rio Rodríguez

During the examination of 913 fish specimens belonging to four families in the Campeche Bank (Gulf of Mexico), 23 gill ectoparasitic monogenean species were found, which belong to three families: Dactylogyridae, Microcotylidae and Diclidophoridae. The speciesEuryhaliotremaamydrum,E.carbuncularium,E.dunlapae,E.fajeravilae,E.fastigatum,E.longibaculum,E.paracanthi,E.tubocirrus,Haliotrematoidescornigerum,H.gracilihamus,H.heteracantha,H.longihamus,H.magnigastrohamus,H.striatohamus,Hamatopedunculariabagre,Neotetraonchusbravohollisae, andN.felis(all Dactylogyridae) were found on the hostsLutjanussynagris,L.griseus,Ariopsisfelis,Bagremarinus,Archosargusrhomboidalis, andHaemulonplumieri. Additionally,Microcotylearchosargi,Microcotylesp., andMicrocotyloidesincisa(all Microcotylidae) were found onL.griseusandA.rhomboidalis; finally,Choricotylesp. 1,Choricotylesp. 2, andChoricotylesp. 3 (all Diclidophoridae) were found onH.plumieri. The prevalence, abundance, mean intensity of infection, and supplementary taxonomic revisions for all monogeneans found are provided. Partial sequences of the 28S rRNA gene were also obtained for monogeneans of ariid, sparid, and haemulid host fishes to explore their systematic position within the Monogenea. New locality and host records for some previously described species ofEuryhaliotrema,Hamatopeduncularia,Microcotyle, andChoricotylefrom lutjanid, ariid, sparid, and haemulid hosts were reported. The present study adds evidence supporting the interoceanic occurrence of the same monogenean species (on lutjanids) on the west-east Atlantic and Pacific Oceans (= amphiamerican species). As previously suggested, there are at least, two possibilities to explain that parasite distribution: differentiation of morphological features in these monogeneans have resulted in only slight to insignificant morphological changes developing over the extended period of 3.2 mya (when the Isthmus of Panama was closing) and/or speciation is only evident at molecular level.


2020 ◽  
Author(s):  
John S. Armstrong‐Altrin ◽  
Mayla A. Ramos‐Vázquez ◽  
Nadia Y. Hermenegildo‐Ruiz ◽  
Jayagopal Madhavaraju

2014 ◽  
Vol 505 ◽  
pp. 209-226 ◽  
Author(s):  
H Zhang ◽  
DM Mason ◽  
CA Stow ◽  
AT Adamack ◽  
SB Brandt ◽  
...  

2020 ◽  
Vol 644 ◽  
pp. 33-45
Author(s):  
JM Hill ◽  
PS Petraitis ◽  
KL Heck

Salt marshes face chronic anthropogenic impacts such as relative sea level rise and eutrophication, as well as acute disturbances from tropical storms that can affect the productivity of these important communities. However, it is not well understood how marshes already subjected to eutrophication and sea level rise will respond to added effects of episodic storms such as hurricanes. We examined the interactive effects of nutrient addition, sea level rise, and a hurricane on the growth, biomass accumulation, and resilience of the saltmarsh cordgrass Spartina alterniflora in the Gulf of Mexico. In a microtidal marsh, we manipulated nutrient levels and submergence using marsh organs in which cordgrasses were planted at differing intertidal elevations and measured the impacts of Hurricane Isaac, which occurred during the experiment. Prior to the hurricane, grasses at intermediate and high elevations increased in abundance. After the hurricane, all treatments lost approximately 50% of their shoots, demonstrating that added nutrients and elevation did not provide resistance to hurricane disturbance. At the end of the experiment, only the highest elevations had been resilient to the hurricane, with increased above- and belowground growth. Added nutrients provided a modest increase in above- and belowground growth, but only at the highest elevations, suggesting that only elevation will enhance resilience to hurricane disturbance. These results empirically demonstrate that S. alterniflora in microtidal locations already subjected to submergence stress is less able to recover from storm disturbance and suggests we may be underestimating the loss of northern Gulf Coast marshes due to relative sea level rise.


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