Relationships between Body Size, Weight and Fecundity of the Endangered Fish Alburnus carinatus Battalgil, 1941 in the Manyas Lake (Turkey)

IF 0.8 Q4 MARINE & FRESHWATER BIOLOGY

Aquatic Sciences and Engineering Pub Date : 2019-10-30 DOI:10.26650/ase2019600582

G. Saç, Ö. Gaygusuz

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引用次数: 1

Abstract

Alburnus carinatus Battalgil, 1941 is an endangered fish species, which has a narrow distribution range in two shallow lake basins in northwest Anatolia. The present study aimed to describe the reproductive potential of this endemic fish with the relationships between body size, weight, and fecundity. A total of 101 female A. carinatus were captured from the Manyas Lake between January and June 2019. The standard length and body weight of these samples varied between 8.1– 15.0 cm and 9.38–65.45 g, respectively. The length-weight relationship of the female A. carinatus was calculated as W = 0.020 × SL2.959 (r2 = 0.866) with isometric growth. Absolute fecundity ranged from 1512 eggs (8.1 cm SL) to 3203 eggs (10.3 cm SL) with a mean of 2281 eggs (SD = 415.2). Fecundity–length relationship was F = 5.86 × SL2.67 (r2 = 0.702) and the fecundity–length relationship was F = 476.6 + 116.5 × L (r2 = 0.688). Mean relative fecundity was calculated as 244 eggs.cm−1 (SD = 34.1) (ranged from 179.8 to 310.9 eggs.cm−1) and 148 eggs.g−1 (SD = 14.9) (ranged from 115.1 to 171.8 eggs.g−1).

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土耳其Manyas湖濒危鱼类Alburnus carinatus battgil 1941年体型、体重与繁殖力的关系

Alburnus carinatus battalion, 1941是一种濒临灭绝的鱼类，在安纳托利亚西北部的两个浅湖盆中分布范围狭窄。本研究旨在描述这种特有鱼类的生殖潜力与体型、体重和繁殖力之间的关系。2019年1月至6月期间，在Manyas湖共捕获了101只雌性carinatus。这些样品的标准长度和体重分别在8.1 - 15.0 cm和9.38-65.45 g之间。在等长生长条件下，雌性棘腹沙鼠的长重关系为W = 0.020 × SL2.959 (r2 = 0.866)。绝对繁殖力为1512个卵(8.1 cm SL) ~ 3203个卵(10.3 cm SL)，平均2281个卵(SD = 415.2)。繁殖力-长度关系为F = 5.86 × SL2.67 (r2 = 0.702)，繁殖力-长度关系为F = 476.6 + 116.5 × L (r2 = 0.688)。平均相对繁殖力计算为244个卵。cm−1 (SD = 34.1)(范围为179.8 ~ 310.9个鸡蛋。cm−1)和148个鸡蛋。g−1 (SD = 14.9)(范围115.1 ~ 171.8个鸡蛋。g−1)。

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