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  1. Article ; Online: First releases of hatchery-produced Senegal sole (Solea senegalensis), brill (Scophthalmus rhombus), and wedge sole (Dicologoglossa cuneata) juveniles in the South-western Spanish coast

    Herrera, Marcelino / Rodiles, Ana / Salamanca, Natalia / Navas, Jose Ignacio / Cordero, María Luisa / Hachero, Ismael

    Hydrobiologia. 2023 Jan., v. 850, no. 1 p.203-214

    2023  

    Abstract: The regression of fisheries in the Gulf of Cadiz is evident since current fish catches are 33% of that 30 years before. Consequently, some initiatives for the replenishment of exhausted wild stocks are welcome. The objective of the present work is to ... ...

    Abstract The regression of fisheries in the Gulf of Cadiz is evident since current fish catches are 33% of that 30 years before. Consequently, some initiatives for the replenishment of exhausted wild stocks are welcome. The objective of the present work is to describe and analyse the results coming from the first flatfish stock enhancements in Andalusia. A total of 3189 fish from three flatfish species: Senegal sole (Solea senegalensis Kaup), wedge sole (Dicologlossa cuneata Moreau), and brill (Scophthalmus rhombus Linnaeus) were tagged and released. Several variables were calculated through the data analysis of recovered fish. Some variables were calculated only for Senegal soles since wedge sole and brill recaptures were not significant. The Senegal sole recapture rate was 2.71 ± 0.72, similar to other published data, the recapture rates for bigger fish being higher though not significant. No significant differences were detected for distance, time, growth, or recapture rate amongst initial Senegal sole sizes. Around 80% of recaptures were registered within 15 weeks after release. The results show that it is possible for the release and recovery of tagged Senegal soles in the Gulf of Cadiz. Future long-term programmes on stock enhancement could help to determine the effects on fisheries and recover stocks.
    Keywords Dicologlossa cuneata ; Scophthalmus rhombus ; Solea senegalensis ; coasts ; fish ; Senegal
    Language English
    Dates of publication 2023-01
    Size p. 203-214.
    Publishing place Springer International Publishing
    Document type Article ; Online
    ZDB-ID 214428-1
    ISSN 1573-5117 ; 0018-8158
    ISSN (online) 1573-5117
    ISSN 0018-8158
    DOI 10.1007/s10750-022-05054-w
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  2. Article ; Online: Physiological short-term response to sudden salinity change in the Senegalese sole (Solea senegalensis).

    Herrera, Marcelino / Aragão, Cláudia / Hachero, Ismael / Ruiz-Jarabo, Ignacio / Vargas-Chacoff, Luis / Mancera, Juan Miguel / Conceição, Luis E C

    Fish physiology and biochemistry

    2012  Volume 38, Issue 6, Page(s) 1741–1751

    Abstract: The physiological responses of Senegalese sole to a sudden salinity change were investigated. The fish were first acclimated to an initial salinity of 37.5 ppt for 4 h. Then, one group was subjected to increased salinity (55 ppt) while another group was ... ...

    Abstract The physiological responses of Senegalese sole to a sudden salinity change were investigated. The fish were first acclimated to an initial salinity of 37.5 ppt for 4 h. Then, one group was subjected to increased salinity (55 ppt) while another group was subjected to decreased salinity (5 ppt). The third group (control group) remained at 37.5 ppt. We measured the oxygen consumption rate, osmoregulatory (plasma osmolality, gill and kidney Na(+),K(+)-ATPase activities) and stress (plasma cortisol and metabolites) parameters 0.5 and 3 h after transfer. Oxygen consumption at both salinities was higher than for the control at both sampling times. Gill Na(+),K(+)-ATPase activity was significantly higher for the 55 ppt salinity at 0.5 h. Plasma osmolality decreased in the fish exposed to 5 ppt at the two sampling times but no changes were detected for high salinities. Plasma cortisol levels significantly increased at both salinities, although these values declined in the low-salinity group 3 h after transfer. Plasma glucose at 5 ppt salinity did not vary significantly at 0.5 h but decreased at 3 h, while lactate increased for both treatments at the first sampling time and returned to the control levels at 3 h. Overall, the physiological response of S. senegalensis was immediate and involved a rise in oxygen consumption and plasma cortisol values as well as greater metabolite mobilization at both salinities.
    MeSH term(s) Animals ; Circadian Rhythm ; Flatfishes/physiology ; Osmolar Concentration ; Oxygen Consumption/physiology ; Salinity ; Sodium Chloride/pharmacology ; Time Factors
    Chemical Substances Sodium Chloride (451W47IQ8X)
    Language English
    Publishing date 2012-06-08
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 292907-7
    ISSN 1573-5168 ; 0920-1742
    ISSN (online) 1573-5168
    ISSN 0920-1742
    DOI 10.1007/s10695-012-9671-8
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  3. Article: Physiological responses of juvenile wedge sole Dicologoglossa cuneata (Moreau) to high stocking density

    Herrera, Marcelino / Vargas-Chacoff, Luis / Hachero, Ismael / Ruíz-Jarabo, Ignacio / Rodiles, Ana / Navas, José I / Mancera, Juan M

    Aquaculture research. 2009 Apr., v. 40, no. 7

    2009  

    Abstract: Physiological responses to a high stocking density were tested in juvenile wedge sole Dicologoglossa cuneata (Moreau). Fish were kept at low (1 kg m⁻²), medium (3 kg m⁻²) and high (9 kg m⁻²) stocking densities for 22 days. No differences in the weight, ... ...

    Abstract Physiological responses to a high stocking density were tested in juvenile wedge sole Dicologoglossa cuneata (Moreau). Fish were kept at low (1 kg m⁻²), medium (3 kg m⁻²) and high (9 kg m⁻²) stocking densities for 22 days. No differences in the weight, length, survival and hepatosomatic index were observed among treatments. Basal plasma cortisol and osmolality were found to be directly and positively related to stocking density. A mild increase in plasma glucose was seen at medium density, and plasma protein was elevated at medium and high densities. The liver glucose and glycogen content was inversely related to stocking density. The liver triglyceride level was significantly elevated at the highest density, and the α-amino acid content decreased at the highest density. In muscle, glucose levels were significantly higher in fish kept at the lowest density; the α-amino acid content was elevated in fish kept at high density. In conclusion, plasma cortisol levels indicated an increasing stress level depending on the culture density, but significant changes in energy reserves did not occur in tissue (mainly liver and muscle glycogen and glucose reserves were significantly affected).
    Keywords density ; cortisol
    Language English
    Dates of publication 2009-04
    Size p. 790-797.
    Publisher Blackwell Publishing Ltd
    Publishing place Oxford, UK
    Document type Article
    ZDB-ID 1227359-4
    ISSN 1355-557X
    ISSN 1355-557X
    DOI 10.1111/j.1365-2109.2008.02162.x
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  4. Article: Osmoregulatory changes in wedge sole (Dicologoglossa cuneata Moreau, 1881) after acclimation to different environmental salinities

    Herrera, Marcelino / Vargas-Chacoff, Luis / Hachero, Ismael / Ruíz-Jarabo, Ignacio / Rodiles, Ana / Navas, José I / Mancera, Juan M

    Aquaculture research. 2009 Apr., v. 40, no. 7

    2009  

    Abstract: The osmoregulatory responses of 20 days of acclimation to environmental salinities of 5[per thousand], 15[per thousand], 25[per thousand], 35[per thousand] and 55[per thousand] were assessed in juveniles of wedge sole (Dicologoglossa cuneata Moreau, 1881) ...

    Abstract The osmoregulatory responses of 20 days of acclimation to environmental salinities of 5[per thousand], 15[per thousand], 25[per thousand], 35[per thousand] and 55[per thousand] were assessed in juveniles of wedge sole (Dicologoglossa cuneata Moreau, 1881). This sole shows a good capacity to adapt to this range of environmental salinities. A direct linear relationship between environmental salinity and plasma osmolality was observed, with a calculated isosmotic point of 10.4[per thousand] (284 mOsm kg⁻¹). Na⁺, K⁺-ATPase activity in the gills followed a 'U-shaped' relationship with environmental salinity, and a direct linear relationship in kidney tissue. Plasma cortisol levels were elevated in fish held in extreme salinities, and glucose levels were higher only in the group maintained at the highest environmental salinity. In the liver, a decrease in glycogen, lactate and amino acid contents was observed in specimens acclimated to extreme salinities (5[per thousand] and 55[per thousand]), suggesting mobilization of liver metabolites. Metabolite levels in white muscle showed a pattern similar to the liver, with lower values in specimens acclimated to extreme salinities. We conclude that wedge sole is strongly euryhaline, but acclimation to extreme salinities comes with an energetic cost.
    Keywords salinity ; osmoregulation
    Language English
    Dates of publication 2009-04
    Size p. 762-771.
    Publisher Blackwell Publishing Ltd
    Publishing place Oxford, UK
    Document type Article
    ZDB-ID 1227359-4
    ISSN 1355-557X
    ISSN 1355-557X
    DOI 10.1111/j.1365-2109.2008.02147.x
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  5. Article: First results on spawning, larval rearing and growth of the wedge sole (Dicologoglossa cuneata) in captivity, a candidate species for aquaculture

    Herrera, Marcelino / Hachero, Ismael / Rosano, Montserrat / Ferrer, José Francisco / Márquez, José Manuel / Navas, José Ignacio

    Aquaculture international. 2008 Feb., v. 16, no. 1

    2008  

    Abstract: The wedge sole is a target species in the fisheries of the Gulf of Cadiz (Spain). Having reared them to commercial size, we have studied reproduction and breeding in captivity of the wedge sole in this work here. The breeders adapt easily to captivity, ... ...

    Abstract The wedge sole is a target species in the fisheries of the Gulf of Cadiz (Spain). Having reared them to commercial size, we have studied reproduction and breeding in captivity of the wedge sole in this work here. The breeders adapt easily to captivity, and they can spawn in less than 1 year in captivity. The relative fecundity is relatively high, 1.06-2.33 · 10⁶ eggs kg-¹ per spawning season (mean 1.6 ± 0.1). Larval SGR is high, 7.2 ± 0.2% day-¹ (range 5.8-9.1), similar to other cultured flatfish species. In 1 year, some individuals reach market size and can release eggs, registering SGRs of 1.39-1.66% day-¹ (mean 1.56 ± 0.01). This species presents some very different characteristics with respect to other farmed flatfishes (turbot, halibut and Senegal sole, mainly), so that it is necessary to develop new techniques to optimise its cultivation. In the present work, the first results are presented on the biology of the wedge sole in captivity.
    Keywords aquaculture ; breeding ; captive animals ; eggs ; farmed fish ; fecundity ; fisheries ; halibut ; larvae ; larval development ; new methods ; rearing ; seasons ; sole ; spawning ; turbot ; Spain
    Language English
    Dates of publication 2008-02
    Size p. 69-84.
    Publisher Springer Netherlands
    Publishing place Dordrecht
    Document type Article
    ZDB-ID 1176356-5
    ISSN 1573-143X ; 0967-6120
    ISSN (online) 1573-143X
    ISSN 0967-6120
    DOI 10.1007/s10499-007-9126-x
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  6. Article: Molecular characterization, phylogeny, and expression of c-type and g-type lysozymes in brill (Scophthalmus rhombus).

    Jiménez-Cantizano, Rosa M / Infante, Carlos / Martin-Antonio, Beatriz / Ponce, Marian / Hachero, Ismael / Navas, Jose Ignacio / Manchado, Manuel

    Fish & shellfish immunology

    2008  Volume 25, Issue 1-2, Page(s) 57–65

    Abstract: Lysozymes are key proteins of the innate immune system against bacterial infections. In this study we report the molecular cloning and characterization of the c-type and g-type lysozymes in brill (Scophthalmus rhombus). Catalytic and other conserved ... ...

    Abstract Lysozymes are key proteins of the innate immune system against bacterial infections. In this study we report the molecular cloning and characterization of the c-type and g-type lysozymes in brill (Scophthalmus rhombus). Catalytic and other conserved residues required for functionality were identified. Phylogenetic analysis revealed distinct evolutionary histories for each lysozyme type. Expression profiles of both lysozyme genes were studied in juvenile tissues using a real-time PCR approach. c-Type lysozyme was expressed mainly in stomach and liver, whereas the g-type was detected in all tissues with highest mRNA levels observed in the spleen. Induction experiments revealed that g-type transcripts increased significantly in head kidney after lipopolysaccharide (25- and 23-fold at 12 and 24h, respectively) and Photobacterium damselae subsp. piscicida (17-fold at 24h) treatments. In contrast, no induction was observed for c-type lysozyme. All these data suggest that g-type lysozyme is involved in the response against bacterial infections, whereas c-type lysozyme may also play a role in digestion.
    MeSH term(s) Amino Acid Sequence ; Animals ; Fish Diseases/enzymology ; Fish Diseases/microbiology ; Flatfishes/genetics ; Flatfishes/metabolism ; Gene Expression Regulation, Enzymologic/drug effects ; Gram-Negative Bacterial Infections/enzymology ; Gram-Negative Bacterial Infections/veterinary ; Lipopolysaccharides/pharmacology ; Molecular Sequence Data ; Muramidase/classification ; Muramidase/genetics ; Photobacterium/immunology ; Phylogeny ; Sequence Alignment
    Chemical Substances Lipopolysaccharides ; Muramidase (EC 3.2.1.17)
    Language English
    Publishing date 2008-07
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1067738-0
    ISSN 1095-9947 ; 1050-4648
    ISSN (online) 1095-9947
    ISSN 1050-4648
    DOI 10.1016/j.fsi.2007.12.009
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  7. Article: A highly accurate, single PCR reaction for parentage assignment in Senegal sole based on eight informative microsatellite loci

    de la Herrán, Roberto / Robles, Francisca / Navas, José Ignacio / Hamman‐Khalifa, Abdel Mounim / Herrera, Marcelino / Hachero, Ismael / Mora, María José / Ruiz Rejón, Carmelo / Garrido‐Ramos, Manuel / Ruiz Rejón, Manuel

    Aquaculture research. 2008 Aug., v. 39, no. 11

    2008  

    Abstract: From a battery of microsatellite markers (100 loci), recently identified by our group, we have selected eight for parentage assignment in Senegal sole (Solea senegalensis). This tool is based on microsatellite loci obtained from four genomic DNA ... ...

    Abstract From a battery of microsatellite markers (100 loci), recently identified by our group, we have selected eight for parentage assignment in Senegal sole (Solea senegalensis). This tool is based on microsatellite loci obtained from four genomic DNA libraries and one cDNA library. Within the eight loci (six from anonymous genomic DNA sequences and two located in expressed sequence tags of known genes), we have found, in an analysis of a reproductive broodstock, between nine and 16 alleles. The expected heterozygosity was between 0.616 and 0.860. In addition, we have optimized the polymerase chain reaction (PCR) conditions to amplify all loci simultaneously in a single multiplex PCR reaction, and we have tested three lots of male and female (five to six individuals) and three offspring (50–60 larvae each). The use of the eight microsatellite loci, the possibility of amplifying them in a single PCR reaction and the high value of the exclusion probability (0.9992) make this multiplex PCR method a unique tool for parentage assignment. Finally, analysing one meiotic gynogenetic progeny, we have determined the relative distance of six of these loci to the centromere, and we have also found that all of them are unlinked. All these characteristics confer this tool with a high accuracy for parentage studies and genetic population analyses of Senegal sole.
    Keywords Solea senegalensis ; alleles ; cDNA libraries ; complementary DNA ; expressed sequence tags ; gynogenesis ; heterozygosity ; larvae ; loci ; microsatellite repeats ; parentage ; polymerase chain reaction ; probability ; progeny
    Language English
    Dates of publication 2008-08
    Size p. 1169-1174.
    Publishing place Blackwell Publishing Ltd
    Document type Article
    ZDB-ID 1227359-4
    ISSN 1355-557X
    ISSN 1355-557X
    DOI 10.1111/j.1365-2109.2008.01979.x
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