Food of sand smelt, &lt;i&gt;Atherina boyeri&lt;/i&gt; Risso, 1810 (Pisces: Atherinidae) in the estuary of the Mala Neretva River (middle-eastern Adriatic, Croatia)

Bartulović, Vlasta; Conides, Alexis; Glamuzina, Branko; Dulčić, Jakov; Hafner, Dubravka; Batistić, Mirna

doi:10.3989/scimar.2004.68n4597

Cited by 31 publications

(45 citation statements)

References 13 publications

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“…On the contrary, in the presently reported study, E. drieschi had significantly lower importance as prey. The absence of rotifers from the diet of A. boyeri was not unexpected, since this was also reported in the previous studies conducted in this area (Chrisafi et al 2007, Doulka et al 2013, as well as in other freshwater and brackish ecosystems (Mantilacci et al 1990, Rosecchi and Crivelli 1992, Bartulović et al 2004. Also, according to all the above studies, A. boyeri appears not to prey on other small-bodied organisms such as copepod nauplii, whose presence in the stomach contents has been characterized as rare or even accidental.…”

Section: Discussionsupporting

confidence: 75%

Fish predation in the proximity of purse seine fishing lights: The case of Atherina boyeri (Actinopterygii: Atheriniformes: Atherinidae) in a Greek Lake

Kehayias¹,

Tzavali²,

Gini³

et al. 2018

Acta Ichthyol. Piscat.

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Kehayias G., Tzavali A., Gini M., Michopoulou E., Tsounis L. 2018. Fish predation in the proximity of purse seine fishing lights: The case of Atherina boyeri (Actinopterygii: Atheriniformes: Atherinidae) in a Greek Lake. Acta Ichthyol. Piscat. 48 (1): 51-60.Background. Purse seining with the use of light is among the most common fishing practices around the world, but there is lack of studies on the effect of light on the feeding of the target species in this kind of fishery and the possible consequences for other prey species. The presently reported investigation intended to provide indications on this issue by studying the diet of Atherina boyeri Risso, 1810, which is the target species of professional purse seine fishery, conducted using light in Lake Trichonis (Greece), and by comparing the acquired results with those of previous studies where the samples were taken without using light. Materials and methods.A seven-month (June through December 2014) purse seining fishing was conducted at night around two lamp rafts: 1) a traditional lamp raft producing white LED light and 2) an autonomous photovoltaic-battery-LED lamp raft producing green LED light. Stomach content analysis was conducted on 100 randomly selected specimens from each sample and the relative prey abundance and frequency of occurrence for each prey category was estimated. Calculations of predation pressure of A. boyeri upon the fish larvae of a goby, Economidichthys trichonis Economidis et Miller, 1990, were performed. Results. The study revealed the intense effect of light on the attraction and capture of prey species rarely found in previous studies, such as the larvae of the native and endangered fish E. trichonis, amphipods, and copepod nauplii. No significant differences were observed between the two light colours. A preference shift to larger prey with the increase of ontogenetic stage of A. boyeri was observed. Several thousands of pre-recruited E. trichonis larvae may be preyed upon each night around a single lamp especially during summer. Conclusion. Fishing with light may alter the dietary preference of the target fish species and even of the entire fish community. This may have serious consequences on the younger ontogenetic stages of other fish populations, especially when it coincides with their reproductive period. Considering the lack of similar field studies, the present results may stimulate analogous investigations on the effects of fishing lights in other marine and freshwater ecosystems worldwide.

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Section: Discussionsupporting

confidence: 75%

Fish predation in the proximity of purse seine fishing lights: The case of Atherina boyeri (Actinopterygii: Atheriniformes: Atherinidae) in a Greek Lake

Kehayias¹,

Tzavali²,

Gini³

et al. 2018

Acta Ichthyol. Piscat.

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“…Reasons of such a bias are difficult to determine (Bartulović et al, 2006); but along with differences of ecological features like temperature and salinity, having no competition for food, population explosion of A. boyeri in Lake Eğirdir is thought to be nutrition related.…”

Section: Discussionmentioning

confidence: 99%

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Küçük¹,

Güçlü²,

Gülle³

et al. 2012

Turk. J. Fish. Aquat. Sci.

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“…In the future, the method will be tested on fish remains extracted from stomach contents or other fish or birds with the necessary adaptations. Sandsmelts are small fish but so abundant in lagoons, estuaries and near rocky shores that they are assumed to represent an important component of the diet of marine birds and fish, while at the same time being consumers of a wide spectrum of small invertebrates (e.g., Bartulovic et al 2004;Pombo et al 2005). Thus, surveys of their populations are important in studies of inshore, estuarine and lagunar ecosystems.…”

Section: Discussionmentioning

confidence: 99%

“…They are small and delicate fish that very frequently get damaged during collection. They are important ecological components of inshore, estuarine and lagunar habitats, both as small predators and prey of larger fish and birds (e.g., Bartulovic et al 2004;Pombo et al 2005). Often several species are sympatric and their identification relies on detailed inspection and scale counts.…”

Section: Introductionmentioning

confidence: 99%

A rapid and inexpensive molecular technique to discriminate the north-eastern Atlantic and Mediterranean Atherina species and its potential applications in ecology and larval identification

Francisco¹,

Rosa

Domingues³

et al. 2012

Biologia

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This note describes a rapid and inexpensive Restriction Fragment Length Polymorphism technique to discriminate all species of Atherina (Pisces: Atherinidae) of the north-eastern Atlantic and the Mediterranean. This technique is based on digestion of a fragment of the 12S ribosomal RNA (12SrRNA) gene region of mitochondrial DNA with restriction enzymes that recognize species-specific nucleotide sites. The three currently recognized species in the area, as well as two additional forms awaiting formal description, can be discriminated using a set of four endonucleases. We argue that this simple and fast technique may be of great help in the identification of young stages and in ecological surveys.

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Food of sand smelt, <i>Atherina boyeri</i> Risso, 1810 (Pisces: Atherinidae) in the estuary of the Mala Neretva River (middle-eastern Adriatic, Croatia)

Cited by 31 publications

References 13 publications

Fish predation in the proximity of purse seine fishing lights: The case of Atherina boyeri (Actinopterygii: Atheriniformes: Atherinidae) in a Greek Lake

Fish predation in the proximity of purse seine fishing lights: The case of Atherina boyeri (Actinopterygii: Atheriniformes: Atherinidae) in a Greek Lake

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A rapid and inexpensive molecular technique to discriminate the north-eastern Atlantic and Mediterranean Atherina species and its potential applications in ecology and larval identification

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