Reproductive strategy of spiny gurnard Lepidotrigla dieuzeidei Blanc and Hureau, 1973 from the south-eastern Adriatic Sea

Dobroslavić, Tatjana; Conides, Alexis; Šprem, Jadranka Sulić; Glamuzina, Branko; Bartulović, Vlasta

doi:10.32582/aa.62.1.3

Cited by 2 publications

(1 citation statement)

References 32 publications

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“…This dominance of one sex over another is a relatively common phenomenon in most teleost fish species according to Poulet (2004). Similar results of female-skewed sex ratios have been previously reported for the main gurnard species in water bodies including the Sea of Marmara in Turkey, the eastern Libyan coast, the south-eastern Adriatic Sea in Croatia and the Dernah coast in eastern Libya (Eryilmaz and Meriç, 2005;Dobroslavić et al,2021). According to Penman and Piferrer (2008) sex determination is the genetic or environmental process by which sex is determined in a simple binary fate decision.…”

Section: Resultssupporting

confidence: 81%

Reproductive biology of the flying gurnard Dactylopterus volitans (Linnaeus, 1758) from the coastal waters of Cote D’Ivoire

Regina N’ZI,

Justin KONAN,

Toussaint JOANNY

et al. 2023

Int.J.Zool.Appl.Biosci

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The flying gurnard Dactylopterus volitans is one of the most important by–catch fish species in the inshore trawl fisheries of Côte d’Ivoire. Its reproductive characteristics were studied in order to provide fisheries managers with the essential data for science–based management. A total of 1337 specimens (including 351 males and 986 females) with size 60–390 mm in standard length (SL) were caught by industrial trawlers in waters of Côte d’Ivoire between January 2019 and December 2020. The sex ratio was defined as the proportion of females to males following month and marine seasons. The reproductive activity was assessed using the gonadosomatic index and the percentages of maturity stages. The overall sex ratio of 1 female for 0.36 male was in favour of females (χ2 = 301.59 p < 0.05). At 50% sexual maturity, males matured at of 192.8 mm, SL while females matured at 158.6 mm. The flying gurnard spawned twice during a relatively long reproductively active period, from May to August and from November to February. The total fecundity ranged from 4164 to 112232 oocytes/ovary and showed a significant correlation with fish length and body weight. This information will contribute to a scientific basis for future management.

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Section: Resultssupporting

confidence: 81%

Reproductive biology of the flying gurnard Dactylopterus volitans (Linnaeus, 1758) from the coastal waters of Cote D’Ivoire

Regina N’ZI,

Justin KONAN,

Toussaint JOANNY

et al. 2023

Int.J.Zool.Appl.Biosci

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Community Structure of Gurnards in Relation to Different Environmental Variables in Antalya Gulf

Mutlu,

De Meo,

Miglietta

et al. 2024

Çanakkale Onsekiz Mart University Journal of Marine Sciences and Fisheries

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The fish assemblages are not studied at the family level with the comprehensive environmental variables. Ecological study to determine the spatiotemporal density (abundance and biomass) and morphometry (size and inter-traits relationships) of the fish species have been highly limited in the Mediterranean Sea, particularly in the Turkish Levant coast. One of the fish families is Triglidea which was ignored for the ecological study. To outline the spatiotemporal dynamic of density and morphometry in space (region and bottom depth) and time (season) with the environmental parameters, the gurnard fish collected seasonally from a study conducted on shelf/shelf break of the Antalya Gulf in 2011-2012 (de Meo et al. 2018) were evaluated and then interpreted using the statistical analyses. The gurnards were represented by six species in the Gulf. The specimens were significantly differentiated by the bottom depth, followed by the depth-gradient environment. The shallow water, middle shelf and deeper water species were distinguished among the six species. The gurnards stayed out of the meadow field. Only Trigloporus lastoviza was found close to meadow bed. Small-sized specimens had abundance more than large-sized specimens. Larger specimens had size smaller in the oligotrophic area compared to the eutrophic area, but small-sized specimens were comparatively measured in similar ranges, which could change the growth type on comparison. Assemblage of six gurnard species was correlated with the bottom depth, thus bottom type (coarse to fine material of sediment from coast to open water bottom) and chl-a and fine bioseston. With respect to fish-epibenthic fauna relation, the gurnard community was correlated primarily with Decapoda and Holoturidea and secondarily with Crinoidea, followed by Ophiuridea.

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Reproductive strategy of spiny gurnard Lepidotrigla dieuzeidei Blanc and Hureau, 1973 from the south-eastern Adriatic Sea

Cited by 2 publications

References 32 publications

Reproductive biology of the flying gurnard Dactylopterus volitans (Linnaeus, 1758) from the coastal waters of Cote D’Ivoire

Reproductive biology of the flying gurnard Dactylopterus volitans (Linnaeus, 1758) from the coastal waters of Cote D’Ivoire

Community Structure of Gurnards in Relation to Different Environmental Variables in Antalya Gulf

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