Drivers of larval fish assemblage shift during the spring-summer transition in the coastal Mediterranean

Álvarez, Itziar; Catalán, Ignacio Alberto; Jordi, Antoni; Palmer, Miquel; Sabatés, Ana; Basterretxea, Gotzon

doi:10.1016/j.ecss.2011.11.029

Cited by 33 publications

(26 citation statements)

References 52 publications

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“…Temperature changes also significantly affected the diversity, abundance and composition of larval fish assemblages in Iskenderun Bay. This is consistent with those of many studies conducted throughout middle latitudes, including the northwestern Pacific (Huang & Chiu, ), the northern Aegean Sea (Koutrakis et al., ), the northeastern Atlantic (Azeiteiro, Bacelar‐Nicolau, Resende, Gonçalves, & Pereira, ), the western Mediterranean (Álvarez et al., ) and Northeastern Pacific (Peiro‐Alcantar et al., ). Furthermore, in accordance with the present results, Moyano and Hernández‐León () also reported the presence of two seasonal LFAs’ corresponding to winter mixing and summer stratification periods in Gran Canaria.…”

Section: Discussionsupporting

confidence: 90%

“…Our results showed that most of the fish species spawned during April in the northeastern Mediterranean, when the ichthyoplanktonic richness was at its the highest level. This period delays towards June and July in adjacent areas such as the western basin of the Mediterranean (Álvarez et al., ; Sabatés et al., ), and the northern Aegean Sea (Koutrakis et al., ); a difference that can be attributed to the contribution of several factors, such as differences among the zoogeographic structure of the local communities (Golani, Ozturk, & Basusta, ; Tortonese, ) and the phenology of physical and trophodynamic conditions (Sabatés et al., ).…”

Section: Discussionmentioning

confidence: 99%

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Intra‐annual patterns of coastal larval fish assemblages along environmental gradients in the northeastern Mediterranean

Mavruk

Bengil²,

Yüksek

et al. 2017

Fisheries Oceanography

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To date, little is known about the larval‐fish assemblages (LFAs) in the eastern Mediterranean. The purpose of this study is to investigate the intra‐annual variations of LFAs with an emphasis on the effects of physical, chemical, biological and meteorological conditions in the gulf of Iskenderun, which is a shallow (100 m maximum depth), semi‐enclosed bay located in the northeastern corner of the Mediterranean. The gulf is under the influence of offshore waters throughout the year. The study was based on an ichthyoplankton survey program performed at 28 stations over 12 months, between November 2009 and October 2010. During the study, a total of 11,411 larval individuals belonging to 177 taxa were sampled. The jackknife estimate of maximum species richness was 225 ± 19 for the study area. The maximum larval richness (84 species) and abundance (827 larvae/10 m2) values coincided with spring bloom in April. Gobiids dominated the ichthyoplankton of Iskenderun Bay by constituting 9% of species richness and 42% of total individuals. Four LFAs were identified which were in early winter (November to January), late winter (February and March), spring (April to June) and summer (July to October). The intra‐annual variations of richness, abundance and composition of ichthyoplankton were significantly correlated with the temperature and mesozooplankton biomass. The wind conditions and thermal stratification were also significantly correlated with the composition of LFAs. In conclusion, phenology of LFAs were formed under the influence of physical and tropho‐dynamic conditions in Iskenderun Bay, Northeastern Mediterranean.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Intra‐annual patterns of coastal larval fish assemblages along environmental gradients in the northeastern Mediterranean

Mavruk

Bengil²,

Yüksek

et al. 2017

Fisheries Oceanography

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show abstract

“…winds, topography) and fluctuations of fish populations are not exclusively linked to fishing activity, but rather significantly affected by ocean conditions (Falcini et al, 2015;Lloret et al, 2000). Extensive work has mainly covered the coastal waters of the north-western part of the Mediterranean Sea (Alemany et al, 2006;Alvarez et al, 2012;García & Palomera, 1996;Olivar et al, 2012;Olivar & Sabatés, 1997;Palomera & Olivar, 1996;Palomera & Sabatés, 1990;Sabatés, 1990Sabatés, , 2004Sabatés & Olivar, 1996;Sabatés et al, 2007) and to a lesser extent the central (Cuttitta et al, 2003(Cuttitta et al, , 2004 and the eastern parts (Aegean Sea: Isari et al, 2008;Somarakis et al, 2011;Tsikliras & Koutrakis, 2011;Tsikliras et al, 2014; eastern Ionian waters: Granata et al, 2011;Tunisian waters: Koched et al, 2013;Zarrad et al, 2013). These studies carried out in the Mediterranean Sea showed that there was a clear bathymetric separation of larval fish assemblages, due to different spawning behavior of adults: inshore assemblages have a different composition from offshore ones (Alemany et al, 2006;Giordano et al, 2014;Granata et al 2011;Sabatés & Olivar, 1996).…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Different key roles of mesoscale oceanographic structures and ocean bathymetry in shaping larval fish distribution pattern: A case study in Sicilian waters in summer 2009

Cuttitta

Quinci

Patti

et al. 2016

Journal of Sea Research

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“…Other variables such as variation in abundance, peak appearance or taxa composition of larvae, post-larvae and large settlers over time have been published separately for some of these (and other) methods used in the Mediterranean (e.g. Álvarez et al, 2012;Félix-Hackradt et al, 2013a).…”

Section: Discussionmentioning

confidence: 99%

“…2). Sampling was performed during two nights in May (24-25 th ) and June (13-14 th ) 2012, coinciding with the spawning/recruitment peak for many littoral species in the area (Tsikliras et al, 2010;Álvarez et al, 2012). To optimise the catch, sampling was performed as close as possible to the new moon period (Milicich, 1994).…”

Section: Sampling Procedures: Pre-settlementmentioning

confidence: 99%

An evaluation of sampling methodology for assessing settlement of temperate fish in seagrass meadows

Catalán¹,

Dunand²,

Álvarez³

et al. 2014

Medit. Mar. Sci.

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All demersal fish with planktonic larvae settle at some point early in life, generally around the transformation from larvae to juveniles or soon after. Sampling pre-settlement or very young, settled fish is challenging due to spatial concretions within the habitat and the pulsed, rapid nature of the settlement process. There is a lack of robust methods that enable this sampling, but information on the settlement, that represents a mortality bottleneck, is crucial for the follow-up of populations for fisheries and conservation purposes. An empirical evaluation of sampling methods has not been conducted in temperate habitats. Here, we compare six different sampling methods to collect pre- and post-settlement stages of fish to determine the best combination of techniques to utilise in Posidonia oceanica, an endemic Mediterranean seagrass that provides a key nursery habitat for coastal fish. We considered three types of pelagic nets (bongo net, neuston net and ring net), two types of light-traps (Quatrefoil and Ecocean CARE®) to sample pre-settled stages and a low-impact epibenthic trawl for recent settlers. Our results show a significantly different size-spectrum for each method, with a continuous range of sizes from 2 mm to 200 mm. The smallest sizes were collected by the bongo net, followed by the ring net, the neuston net, the Quatrefoil, the Ecocean and finally the epibenthic trawl. Our results suggest that an appropriate strategy for collecting and estimating the abundance of key littoral fish species around settlement size is the combination of the Ecocean light trap and the epibenthic trawl.

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Drivers of larval fish assemblage shift during the spring-summer transition in the coastal Mediterranean

Cited by 33 publications

References 52 publications

Intra‐annual patterns of coastal larval fish assemblages along environmental gradients in the northeastern Mediterranean

Intra‐annual patterns of coastal larval fish assemblages along environmental gradients in the northeastern Mediterranean

Different key roles of mesoscale oceanographic structures and ocean bathymetry in shaping larval fish distribution pattern: A case study in Sicilian waters in summer 2009

An evaluation of sampling methodology for assessing settlement of temperate fish in seagrass meadows

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