Reproduction, gonad histology and fecundity of &lt;i&gt;Aidablennius sphynx&lt;/i&gt; (Pisces: Blenniidae) of the Catalan Sea (North-Western Mediterranean)

Carrassón, Maite; Bau, Marina

doi:10.3989/scimar.2003.67n4461

Cited by 17 publications

(14 citation statements)

References 25 publications

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“…The basic pattern of oogenesis in L. pholis is similar to that already described for other blenniids (Qasim 1957, Dunne 1977, Shackley and King 1977, Fives 1980, Patzner 1983, Santos 1995, Carrassón and Bau 2003 or even other teleosts (Tayler andSumpton 1996, Lubzens et al 2010). Histological observations showed that all stages of development were represented in the ovaries during all 4 seasons studied, suggesting that L. pholis is an asynchronous spawner, with eggs being recruited in several batches during the breeding season.…”

Section: Discussionsupporting

confidence: 81%

The annual cycle of oogenesis in the shanny, <i>Lipophrys pholis</i> (Pisces: Blenniidae)

Ferreira¹,

Santos²,

Reis-Henriques³

et al. 2012

Sci. Mar.

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SUMMARY:Lipophrys pholis has been shown to be responsive to a variety of environmental contaminants, some of them able to impair reproduction. Description of the normal cycle of oogenesis of this newly proposed sentinel species is important since this data may function as a baseline for comparison in ecotoxicological studies, among other applications. Based on histological observations, L. pholis ovarian development in adult is asynchronous, and 7 ovarian germ cells can be described (oogonia, early and late perinuclear oocytes, cortical-alveolar oocytes, early vitellogenic oocytes, vitellogenic oocytes and spawning oocytes). Using a stereological approach together with the morphologic characteristics of ovarian cells, the ovarian cycle of L. pholis was divided into 3 maturation stages: early oogenesis (May); mid-oogenesis (September), and spawning (November to January). Ovarian cell proportions and gonadosomatic index confirmed that the reproductive period of L. pholis near the southern limit of distribution of the species occurs during cold-water periods, between November and May. The collected data will help to fill some of the gaps in information that still exist on L. pholis oogenesis, thus allowing a better integration of this species as a sentinel for the detection of contaminants in European coastal waters.Keywords: Lipophrys pholis, sentinel species, intertidal, oogenesis, gonadal development. RESUMEN: Ciclo anual de oogénesis en Lipophrys phoLis (Pisces: Blenniidae). -En trabajos recientes, se ha visto que Lipophrys polis es sensible a diversos contaminantes medioambientales, algunos de los cuales pueden afectar a la reproducción. La descripción del ciclo normal de oogénesis de esta nueva propuesta de especie centinela es importante, ya que serviría como referencia para futuros estudios toxicológicos, entre otras aplicaciones. En base a observaciones histológicas, se pueden describir siete estados de los oocitos (oogonia, estado perinuclear temprano y tardío, estado cortico-alveolar, vitelogénesis temprana, vitelogénesis y oocitos desovados). Desde un enfoque estereológico, junto con las características morfológicas de las células ováricas, el ciclo ovárico de L. polis se ha dividido en tres estados de maduración: oogénesis temprana (mayo), oogénesis media (septiembre) y desove (de noviembre a enero). Las proporciones de las células ováricas y el índice gonadosomático, confirmaron que el periodo reproductivo de L. polis, en el límite meridional de distribución de la especie, se produce durante los periodos de agua fría, entre noviembre y mayo. Los datos obtenidos ayudarán a cubrir algunas de las lagunas que todavía existen en el conocimiento de la ovogénesis de L. pholis, permitiendo, por tanto, una mejor integración de esta especie como centinela para la detección de contaminantes en las aguas costeras europeas.

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Section: Discussionsupporting

confidence: 81%

The annual cycle of oogenesis in the shanny, <i>Lipophrys pholis</i> (Pisces: Blenniidae)

Ferreira¹,

Santos²,

Reis-Henriques³

et al. 2012

Sci. Mar.

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“…Apparently, this presence can act as a spermatogenic cell reposition source, as suggested by other authors (Burns et al 1995;Matta et al 2009). Given the fact that spermatogonia were always observed throughout the year, namely during the breeding season, it seems that L. pholis males are capable of multiple spawning episodes, as already observed for other Blenniidae (Qasim 1956;Shackley and King 1977;Carrassón and Bau 2003;Shibata and Kohda 2007;Gil et al 2010). Interestingly, Shackley and King (1977) observed that L. pholis females are also capable of spawning several times during the breeding season.…”

Section: Discussionmentioning

confidence: 67%

The annual cycle of spermatogenesis in Lipophrys pholis (Blenniidae), a recently proposed sentinel species for pollution monitoring

et al. 2011

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Since reproductive parameters are common endpoints in pollution monitoring, the description of the spermatogenesis of Lipophrys pholis, a recently proposed sentinel species, is of critical importance. Mature males were used to determine the annual maturation cycle, using a stereological approach. The spermatogenic cycle was classified into three stages: early spermatogenesis (May), mid spermatogenesis (September), and spawning (November and January). The testes were asynchronously arranged with various cell types observable during all seasons, although in different proportions. Gonadosomatic index and spermatozoa proportions confirmed the established reproductive season. Differences between the sampled populations and those from septentrional locations are discussed, namely the absence of ''resting'' and ''spent'' periods.

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Section: Methodsmentioning

confidence: 99%

“…Stages of oocyte growth were determined from histological preparations of the gonads of 120 females and the sexual stage of each fish was determined. To differentiate between mature and immature individuals, stages of maturity (maturity code) were classified after Carrassón & Bau (2003): I, immature (only oocytes in chromatin nucleolar stage); II, immature (presence of oocytes in perinucleolar stage); III, immature (presence of oocytes in cortical alveoli stage); IV, maturing (presence of oocytes in vitellogenic stage); and V, ripe (presence of mature oocytes). Thus, individuals with gonads in stages I to III are immature, and the presence of gonads with oocytes in vitellogenic and ripe stages (stages IV and V) indicate mature specimens.…”

Section: Methodsmentioning

confidence: 99%

Benign effect of the fish parasitic isopod Ceratothoa cf. imbricata on Selenotoca multifasciata (Scatophagidae) from Australia

Carrassón

Cribb²

2014

Dis. Aquat. Org.

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The tongue-biter cymothoid isopod Ceratothoa cf. imbricata is nearly ubiquitous in buccal cavities of the banded scat Selenotoca multifasciata (Scatophagidae) from Waterloo Bay, south-east Queensland. To test whether infestation affects fish growth or condition significantly, we explored parasitism and condition in 122 S. multifasciata specimens. The internal area of the buccal cavity and that occupied by ovigerous female isopods were measured, allowing the relative proportion of free internal area of the buccal cavity (PFIAO) to be calculated. Of 122 fish, 119 (97.5%) were infected; 35.3% had large female isopods, the remaining infections comprised much smaller mancae, juveniles and adult males. Mean intensity of infection was significantly correlated with fish total length (TL). In some fish, the female isopod occupied up to 80% of the buccal cavity area. There was little evidence of attachment damage in the buccal cavity; only 9 of 43 hosts analysed had restricted damage to the tissues at the points of attachment of the female isopod. Condition factor, food intensity index and stomach weight did not differ between fish with and without female C. cf. imbricata. The relative proportion of free internal area of the buccal cavity with respect to the fish total length (PFIAO/TL 2 ratio) of fish infected with females correlated with food intensity and condition factor. Although the correlation was significant, the actual effect was not large because more than 70% of these 2 indices was not explained by the PFIAO/TL 2 ratio (r 2 < 0.3 in both cases). Despite the dramatic appearance of infestations and the high prevalence of C. cf. imbricata in the population, the near-absence of pathological alterations and the limited effect of the isopod on the condition indices and food intensity suggest that this isopod is relatively benign for S. multifasciata. KEY WORDS: Ceratothoa cf. imbricata · Oral ectoparasite · Selenotoca multifasciata · Asymptomatic infection Resale or republication not permitted without written consent of the publisherDis Aquat Org 110: [173][174][175][176][177][178][179][180] 2014 musculature of fishes. Most are highly site specific (Bunkley-Williams & Williams 1998). Females are always much larger than the males on an individual host.There are reports of various pathologies caused by cymothoids including tissue damage, growth defects, decrease in mean host weight and size, depressed fecundity and increased mortalities (Adlard & Lester 1994, 1995, Horton & Okamura 2001, Rajkumar et al. 2005, Ravi & Rajkumar 2007, Fogelman & Grutter 2008. In contrast, some studies have failed to find such serious effects of infection as those listed above (e.g. Ruiz & Madrid 1992, Landau et al. 1995, Bakenhaster et al. 2006. Species of the genus Ceratothoa affect both wild and cultured fish populations. These parasites may significantly depress growth or other parameters in both wild and cage-reared fishes (Šarušic 1999, Papapanagiotou & Trilles 2001, Mladineo 2002, Horton & Okamura 2003.Scats (family Sca...

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Reproduction, gonad histology and fecundity of <i>Aidablennius sphynx</i> (Pisces: Blenniidae) of the Catalan Sea (North-Western Mediterranean)

Cited by 17 publications

References 25 publications

The annual cycle of oogenesis in the shanny, <i>Lipophrys pholis</i> (Pisces: Blenniidae)

The annual cycle of oogenesis in the shanny, <i>Lipophrys pholis</i> (Pisces: Blenniidae)

The annual cycle of spermatogenesis in Lipophrys pholis (Blenniidae), a recently proposed sentinel species for pollution monitoring

Benign effect of the fish parasitic isopod Ceratothoa cf. imbricata on Selenotoca multifasciata (Scatophagidae) from Australia

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