Characterisation of three variants of estrogen receptor β mRNA in the common sole, Solea solea L. (Teleostei)

Ovaries of the common sole (Solea solea (Linnaeus)) were collected prior to, or at the beginning of, spawning from the spawning grounds in the Bristol Channel. Size frequency distributions of oocytes over 100 μm are presented. They clearly show a break in the size frequency distributions, at about 170 μm, indicating that the production of new oocytes to be spawned that season had ceased. It indicates that the sole is a determinate spawner and that, at least for this population, an annual potential fecundity can be measured. Estimated annual fecundity at length of Bristol Channel sole is calculated, and values are compared with those found for sole from the North Sea, eastern English Channel and the Bay of Biscay.

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Critical lengths, mortality rates and relative yield per recruit of the common sole Solea solea from the Egyptian Mediterranean coast off Alexandria

Egyptian Journal of Aquatic Biology and Fisheries ◽

10.21608/ejabf.2015.2253 ◽

2015 ◽

Vol 19 (2) ◽

pp. 13-20

Author(s):

Sahar Mehanna ◽

Noha Aid ◽

Mohamed Abo Elregal

Keyword(s):

Relative Yield ◽

Mortality Rates ◽

Mediterranean Coast ◽

Solea Solea ◽

The Common ◽

Yield Per Recruit ◽

Common Sole

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Breathing Movements in Entobdella Soleae (Trematoda, Monogenea) from the Skin of the Common Sole

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315400004471 ◽

1962 ◽

Vol 42 (1) ◽

pp. 93-104 ◽

Cited By ~ 23

Author(s):

G. C. Kearn

Keyword(s):

Oxygen Content ◽

Sea Water ◽

The Body ◽

Scyliorhinus Canicula ◽

Solea Solea ◽

Flat Fish ◽

The Common ◽

The Relationship ◽

Common Sole

An undulating movement of the body was observed in Entobdella soleae, a monogenean found on the blind surface of a mud-dwelling flat-fish, Solea solea, at Plymouth. The movement is described and shown to have a breathing function, the rate of undulation increasing with decreasing oxygen content of the ambient sea water and vice versa.The relationship between the movement and micro-habitat is discussed and the phenomenon is compared with breathing movements in other muddwelling animals.A similar movement was noted in three other skin-parasitic monogeneans: Acanthocotyle sp. from Raia clavata, Pseudocotyle squatinae from Squatina squatina and Leptocotyle minor from Scyliorhinus canicula.

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Effect of exposure to petroleum hydrocarbons upon cardio-respiratory function in the common sole (Solea solea)

Aquatic Toxicology ◽

10.1016/j.aquatox.2010.02.006 ◽

2010 ◽

Vol 98 (2) ◽

pp. 113-119 ◽

Cited By ~ 28

Author(s):

Guy Claireaux ◽

Fariba Davoodi

Keyword(s):

Petroleum Hydrocarbons ◽

Respiratory Function ◽

Solea Solea ◽

The Common ◽

Common Sole

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The opercular bond in the egg-shell of the monogenean Entobdella soleae, a platyhelminth skin parasite of the common sole (Solea solea)

Parasitology ◽

10.1017/s0031182099003996 ◽

1999 ◽

Vol 118 (4) ◽

pp. 433-438

Author(s):

G. C. KEARN ◽

R. EVANS-GOWING ◽

T. TAPPENDEN

Keyword(s):

Embryonic Development ◽

Outer Surface ◽

Outer Region ◽

Cement Layer ◽

Solea Solea ◽

Inner Surface ◽

The Common ◽

Egg Shell ◽

Common Sole

The monogenean (platyhelminth) skin parasite Entobdella soleae from the common sole (Solea solea) lays tetrahedral eggs. One of the 4 corners of the tetrahedron is a detachable operculum which is bonded to the rest of the egg-shell by cement. Most of this cement layer, beginning at the inner surface of the shell and running through almost to the outer surface (a distance of about 2 μm), is more or less uniform in thickness (30–38 nm), or tapers slightly. About 345 nm from the outer surface the cement layer narrows abruptly to about 10 nm. The cement is exposed on the inner surface of the shell, but in most eggs a layer of shell about 10 nm thick covers the narrow outer region of the cement layer. When experimentally perforated eggs were incubated with trypsin, the wide inner layer of cement was digested, but the narrow outer region initially remained intact. These observations are discussed in relation to the following (1) survival of the eggs during embryonic development, (2) hatching, (3) the ‘hinge’ often connecting the operculum to the empty egg-shell, (4) the rapid hatching that occurs in some other monogeneans.

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