Length?weight relationships for seven fish species from the southeastern Black Sea

Demirhan, Sefa Ayhan; Can, Mehmet Fatih

doi:10.1111/j.1439-0426.2007.00835.x

Cited by 30 publications

(20 citation statements)

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“…For all of the species presented in this paper, b values were generally in agreement with results from fishes in the same family obtained from other geographical areas (Moutopoulos and Stergiou, 2002; Demirhan and Can, 2007). The length–weight and length–length regressions for eight of the 10 species studied here are also available in FishBase (Froese and Pauly, 2005), and two species, S. longispinis and S. thompsoni , are given for the first time in the present study.…”

Section: Resultssupporting

confidence: 89%

Length-weight and length-length relationships for 10 species of scorpionfishes (Scorpaenidae) on the south coast of Korea

Baeck

Jeong

Yeo

et al. 2012

Journal of Applied Ichthyology

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Section: Resultssupporting

confidence: 89%

Length-weight and length-length relationships for 10 species of scorpionfishes (Scorpaenidae) on the south coast of Korea

Baeck

Jeong

Yeo

et al. 2012

Journal of Applied Ichthyology

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“…(). For the thornback ray we found similar values to the specimens from the eastern Atlantic area (Borges et al., ; Torres et al., ), eastern Mediterranean (Yeldan and Avsar, ; Başusta et al., ) and Black Sea (Demirhan et al., ; Demirhan and Can, ), but different from those in the Azores archipelago (Rosa et al., ). Finally, our values for allometric growth of the marbled electric ray were higher than those found in the literature (e.g.…”

Section: Discussionsupporting

confidence: 83%

Morphological parameters of abundant and threatened chondrichthyans of the northwestern Mediterranean Sea

et al. 2014

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Summary The diversity of chondrichthyans in the Mediterranean Sea is relatively high; however, available data indicate that this group is declining in abundance and several species are becoming rare. As a result, the collection of biological data is a priority for demographic models, stock assessments, and food web analysis. In the present study, we report morphological parameters and length–weight relationships of several chondrichthyan species, both abundant and threatened, from the western Mediterranean Sea. Samples were obtained with commercial and scientific bottom trawl vessels between 2001 and 2013. A total of 893 individuals belonging to 11 families and 20 species were weighed and total lengths measured. In addition, seven species of large demersal sharks were measured and length–length relationships obtained to study the relationships between different body length measurements. All species showed positive allometric or isometric growth, except for Centroscymnus coelolepis. The results of the length–weight relationships reveal differences between the western Mediterranean and nearby areas, depending on the species studied.

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“…Black scorpion fish, Scorpaena porcus (Linnaeus, 1758), inhabit the eastern Atlantic, the southern British Isles, the Mediterranean and the Black Sea (Aksiray, 1987; Mater et al., 1989). The species is found at depths of 1–100 m (Aksiray, 1987; Mater et al., 1989; Demirhan and Can, 2007). Water mixing is limited to the uppermost 100–150 m in the Black Sea, with water below the pycnocline zone being exchanged only once every one thousand years (Brewer and Murray, 1973; Michaelis et al., 2002).…”

Section: Introductionmentioning

confidence: 99%

Age, growth and food composition ofScorpaena porcus(Linnaeus, 1758) in the southeastern Black Sea

Demirhan

Can

2009

Journal of Applied Ichthyology

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Samples of 525 Scorpaena porcus (Linnaeus, 1758) were collected from the southeastern Black Sea between January 2002 and May 2003 for information on age, growth, lengthweight relationships and stomach contents. Total length of sampled fish ranged from 4.6 to 22.9 cm and total weight from 1.3 to 220 g. The sex ratio (1 : 1.61) was biased toward females (P < 0.05). Positive allometric growth was determined in the collected samples. The length-weight relationship for all individuals was described by the parameters a = 0.0149 and b = 3.09, with r 2 = 0.99. The sample was composed of five age-classes (0-7 years). Three growth models were used to identify the growth characteristics: von Bertalanffy, L t ¼ L inf ½1 À expðÀkðt À t 0 ÞÞ; logistic, L t ¼ L inf =½1 þ ððL a À L 0 Þ=L 0 Þ½expðÀrtÞ; and Schnute and Richards, L t ¼ L inf ½1 þ aexpðÀat c Þ ðÀ1=bÞ . Among these, the Schnute and Richards model was best fitted to the data as L t ¼ 21:34½1 þ 2:38expðÀ0:34t 1:58 Þ ðÀ1=0:99Þ The diet was composed of Carcinus mediterraneus (18.2%), Crangon crangon (12.1%), unidentified crab species (10.6%), Gobius sp. (4.6%), Palaemon sp. (4.5%), Macropipus sp. (4.5%), Engraulis encrasicholus (1.5%), Gastropoda (1.5%), and unidentified remains (34.9%).

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Length?weight relationships for seven fish species from the southeastern Black Sea

Abstract: This study reports the parameters a and b of the length-weight relationships for seven fish species (Gobius niger, Mesogobius batrachocephalus, Mullus barbatus, Neogobius melanostomus, Raja clavata, Scorpaena porcus, Uranoscopus scaber) from the southeastern Black Sea.

Cited by 30 publications

References 2 publications

Length-weight and length-length relationships for 10 species of scorpionfishes (Scorpaenidae) on the south coast of Korea

Length-weight and length-length relationships for 10 species of scorpionfishes (Scorpaenidae) on the south coast of Korea

Morphological parameters of abundant and threatened chondrichthyans of the northwestern Mediterranean Sea

Age, growth and food composition ofScorpaena porcus(Linnaeus, 1758) in the southeastern Black Sea

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