De Anda-Montañez Juan Antonio, Zenteno-Savín Tania, Balart Eduardo F, Acosta-Vargas Baudilio, Gaxiola-Robles Ramón, Méndez-Rodríguez Lia Celina
Centro de Investigaciones Biológicas del Noroeste, S.C. (CIBNOR), Calle Instituto Politécnico Nacional No. 195, Col. Playa Palo de Santa Rita Sur, La Paz 23096, Baja California Sur, Mexico.
Hospital General de Zona No.1, Instituto Mexicano del Seguro Social, 5 de Febrero y Héroes de la Independencia, Col. Centro, La Paz 23000, Baja California Sur, Mexico.
Animals (Basel). 2023 Feb 24;13(5):822. doi: 10.3390/ani13050822.
The red crab, , is a decapod crustacean abundant off the Pacific coast of the Baja California Peninsula. This species is caught and used in preparing animal feed, such as flour, particularly for aquaculture. Levels of calcium (Ca), cadmium (Cd), copper (Cu), iron (Fe), lead (Pb), magnesium (Mg), manganese (Mn), nickel (Ni), phosphorus (P), and zinc (Zn) were measured in red crabs collected from three geographic zones during three cruises in different seasons. Significant differences were found in the levels of Ca, Cd, Cu, Fe, Mg, Ni, P, and Zn between the two El Niño years (cruises C1 and C3, based on a threshold of ±0.5 °C for the Oceanic Niño Index). The highest concentrations of most elements were observed in the south of the Baja California Peninsula, a highly productive area influenced by upwelling events. Our findings suggest that while environmental temperature plays a central role in the benthic or pelagic distribution of red crabs, their content and variability of trace and macro elements appear to be associated with the presence of oceanic conditions, such as upwelling and potential changes in the composition of their diet associated with the depth in which these crustaceans are collected.
红蟹是一种十足目甲壳类动物，在加利福尼亚半岛巴哈的太平洋沿岸数量众多。这种蟹类被捕获并用于制备动物饲料，如面粉，尤其用于水产养殖。在不同季节的三次航行中，对从三个地理区域采集的红蟹进行了钙（Ca）、镉（Cd）、铜（Cu）、铁（Fe）、铅（Pb）、镁（Mg）、锰（Mn）、镍（Ni）、磷（P）和锌（Zn）含量的测定。在两个厄尔尼诺年份（基于海洋尼诺指数±0.5°C的阈值，航行C1和C3）之间，Ca、Cd、Cu、Fe、Mg、Ni、P和Zn的含量存在显著差异。大多数元素的最高浓度出现在加利福尼亚半岛巴哈的南部，这是一个受上升流事件影响的高产区域。我们的研究结果表明，虽然环境温度在红蟹的底栖或浮游分布中起着核心作用，但它们的痕量和常量元素含量及变异性似乎与海洋条件的存在有关，如上升流以及与这些甲壳类动物采集深度相关的潜在饮食组成变化。
