Can Thin-lipped Mullet Directly Exploit the Primary and Detritic Production of European Macrotidal Salt Marshes?

Laffaille, Pascal; Feunteun, Éric; Lefebvre, Christelle; Radureau, Alain; Sagan, Gaël; Lefeuvre, Jean‐Claude

doi:10.1006/ecss.2001.0855

Cited by 67 publications

(70 citation statements)

References 45 publications

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“…Inconsistency between habitat electivity and osmoregulatory skills was probably due to the combination of an off-shore reproductive migration (Brusle, 1981;Laffaille et al,, 2002) and the reshuf-fling of part of the population among the estuaries once the sand bars that closed the mouths of the estuaries in spring and summer were removed by freshwater run-off in autumn.…”

Section: Discussionmentioning

confidence: 99%

“…Grey mullet (Osteichthyes, Mugilidae) commonly inhabit tropical and warm-temperate estuaries (McDowall, 1988;Blaber, 1997;Pombo et al, 2005), where they play a crucial ecological role (Laffaille et al, 1998(Laffaille et al, , 2002Torras et al, 2000;Cardona et al, 2001;Almeida, 2003) and usually support artisanal fisheries (McDowall, 1988;Blaber, 1997). Although these species always spawn at sea, they are highly euryhaline and thrive in a wide range of salinities (McDowall, 1988).…”

Section: Introductionmentioning

confidence: 99%

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Habitat selection by grey mullets (Osteichthyes: Mugilidae) in Mediterranean estuaries: the role of salinity

Cardona¹

2006

Sci. Mar.

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SUMMARY: A stratified study of microhabitat use by grey mullet on the island of Minorca (Balearic archipelago, western Mediterranean) showed that the distribution of all the species was dramatically affected by salinity. Sites with a salinity level under 15 were positively selected in spring and summer by those species whose growth performance was the best in oligomesohaline water (Liza ramado and Mugil cephalus) but also by a species whose growth was not affected by salinity (Chelon labrosus). Liza aurata concentrated in polyhaline and euhaline sites, where growth was improved, a pattern also exhibited by Liza saliens. Both species avoided fresh water sites all year round. As a consequence, community structure was correlated with salinity. The above reported electivity patterns often disappeared in autumn, when most grey mullets migrate off-shore.Keywords: Chelon labrosus, Liza aurata, Liza ramado, Liza saliens, Mugil cephalus, salinity. RESUMEN: SELECCIÓN DEL HÁBITAT POR LOS MUGÍLIDOS (OSTEICHTHYES: MUGILIDAE) EN LOS ESTUARIOS MEDITERRÁNEOS: ELPAPEL DE LA SALINIDAD.. -Se ha realizado un estudio estratificado sobre el uso del hábitat por parte de los mugílidos en Menorca (Islas Baleares, Mediterráneo occidental). El análisis de los datos ha revelado la importancia de la salinidad para explicar la distribución de las cinco especies de mugílidos presentes en los estuarios mediterráneos. Las zonas con una salinidad inferior a 15 fueron seleccionadas positivamente en primavera y verano por aquellas especies cuyo crecimiento se maximiza en aguas oligomesohalinas (Liza ramado y Mugil cephalus), e incluso por una especie cuyo crecimiento no se ve afectado por la salinidad (Chelon labrosus). Liza aurata se concentró durante todo el año en lugares con una salinidad polihalina o euhalina, ya que su crecimiento se maximiza en dicho rango. El mismo patrón de distribución se observó para Liza saliens. Ambas especies evitaron los ambientes dulceacuícolas durante todo el año. Como consecuencia de lo anterior, la estructura de las comunidades de mugílidos durante la primavera y el verano está relacionada con la salinidad. Los patrones de electividad arriba descritos desaparecieron con frecuencia en otoño, cuando una fracción importante de la población de todas las especies emigra al mar.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Habitat selection by grey mullets (Osteichthyes: Mugilidae) in Mediterranean estuaries: the role of salinity

Cardona¹

2006

Sci. Mar.

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“…In fact, only a few fish species are able to assimilate salt marsh primary production directly or indirectly; this is the case for mullets Liza and Mugil spp., sand gobies Pomatoschisus spp. and sea bass Dicentrarchus labrax in the MontSaint-Michel Bay (Laffaille et al, 1998(Laffaille et al, , 2002. Salt marsh primary production is essentially assimilated by many invertebrates, and especially by Orchestia gammarella and mysids in European salt marshes (Zagursky and Feller, 1985;Créach et al, 1997).…”

Section: Discussionmentioning

confidence: 99%

“…Since the introduction of the outwelling concept (Odum, 1968), which states that tidal events export detrital organic matter produced in salt marshes to marine waters, strong evidence has also indicated that the export of organic matter from terrestrial to aquatic systems supports secondary production (Loneragan et al, 1997;Kurata et al, 2001). Consequently, salt marshes generally have a very high conservation value, directly as a result of their species complement and because of their role as a feeding ground for migrant birds (Norris et al, 1997;Lefeuvre et al, 2000), and fish, especially juveniles (Boesch and Turner, 1984;Laffaille et al, 2001Laffaille et al, , 2002.…”

Section: Introductionmentioning

confidence: 99%

Does the invasive plant Elymus athericus modify fish diet in tidal salt marshes?

Laffaille

Pétillon

Parlier

et al. 2005

Estuarine, Coastal and Shelf Science

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International audienceThe invasion of Mont-Saint-Michel Bay salt marshes (France) by a grass species (Elymus athericus) has led to important changes in vegetation cover, which is likely to modify the habitat for many invertebrates. Some of them constitute the main food items for several fish species, such as young sea bass (Dicentrarchus labrax) and sand goby (Pomatoschistus minutus), that feed in salt marsh creeks during high tides. As a result, fish nursery functions of salt marshes could be modified by the E. athericus invasion. In order to test this hypothesis, gut contents of the two most abundant fish species (sea bass and sand goby) were compared before and after E. athericus invasion in the same salt marsh creek and using the same methodology. The accessibility and availability of the main food item, the semi-terrestrial amphipod Orchestia gammarella, were estimated and compared between invaded (dominated by E. athericus) and original areas (dominated by Atriplex portulacoides). Gut content analysis showed a significantly greater percentage of fish leaving with empty guts from E. athericus areas than from A. portulacoides areas. The sea bass diet composition study showed a major shift in the relative importance of the main food items: before E. athericus invasion, diets were dominated by the semi-terrestrial species O. gammarella, whereas after the E. athericus invasion they were dominated by a marine mysid Neomysis integer. The same trend was found for sand gobies, with a shift of the main food item from O. gammarella before invasion to the polychaete Hediste diversicolor after invasion. These trophic changes may be explained by the lower accessibility and availability of O. gammarella in invaded communities than in natural ones. The E. athericus invasion, observed throughout northern Europe, is thus likely to disturb trophic function of natural salt marshes for fish. This preliminary study of the E. athericus invasion is also an illustration that invasive species are an urgent problem in conservation biology

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“…Liza carinata commonly inhabit tropical and warm-temperate estuaries (McDowall, 1988;Blaber, 1997;Pombo et al, 2005). Laffaille et al, 1998;Laffaille et al, 2002;Torras et al, 2000;Cardona, 2001;and Almeida, 2003 indicated that mugilidae play a crucial ecological role where this fish community appears to be particulate organic matter transporter and could play a significant role in the global energy budgets of environment. This fish are valuable food sources and ecologically important as primary consumer at coastal and estuarine food chains, and also very representative species for rearing in fish farms (El-Halfawy, 2004;Katsugawa et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Reproductive Biology of Keeled Fish <i>Liza Carinata</i> (Valenciennes, 1836) from Suez Bay, Egypt

<¹,

Abass²,

Elhalfawy³

et al. 2016

ija

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To study the reproductive biology of liza carinata, living samples of this species were collected during the period from November 2012 to October 2013 in Suez Bay. The length weight relationship for female and male was almost strong, but female shows more strong relationship than male. The relation of female was W= 0.012L 2.946 (R =0.8745) and for male was W = 0.034L 2.569 (R= 0.8024 which indicate that females of L. carinata were isometric growth but males were allometric growth. The minimum and maximum length was recorded for all individuals were (10.5-18.2 cm). Reproductive characteristics of Liza carinata showed that the male reaches first sexual maturity smaller than the female at a total body length of 12.5 cm and 14.3 cm, respectively. Overall sex ratio is 1: 0.97 for males to females. Estimation of GSI and HSI was carried out during the period of collection to determine the spawning behaviour of L. carinata. The gonado-somatic index of males was lower than that of females. Where, the maximum GSI values were recorded in December 8.883 % and 5.788 % for females and males, respectively. The maximum condition factor (K) values was (1.23) in September and (1.21) in August for female and male, respectively. The maturity stages of male and female Liza carinata are morphologically separated according to the changes in shape, size and colour of the gonad in different successive stages. These stages are immature, immature & recovering, developing, maturing, mature, spawning and spent stages. The absolute fecundity of the present species ranged from 24500 to 115258 eggs for fishes in the size ranging from 14 to 18.3 cm in total length. Different points of view which take place in this work show that of the spawning season of Liza arinata in Suez which may be extending from November to March for females and males.

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Can Thin-lipped Mullet Directly Exploit the Primary and Detritic Production of European Macrotidal Salt Marshes?

Cited by 67 publications

References 45 publications

Habitat selection by grey mullets (Osteichthyes: Mugilidae) in Mediterranean estuaries: the role of salinity

Habitat selection by grey mullets (Osteichthyes: Mugilidae) in Mediterranean estuaries: the role of salinity

Does the invasive plant Elymus athericus modify fish diet in tidal salt marshes?

Reproductive Biology of Keeled Fish <i>Liza Carinata</i> (Valenciennes, 1836) from Suez Bay, Egypt

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