Branconi Rebecca, Buston Peter M, Wong Marian Y L
Boston University, Department of Biology, Boston, Massachusetts, USA.
ZARATAN, Marine Research & Higher Education Center - World Biodiversity Association Onlus - Sezione Arcipelago Toscano, Portoferraio, Italy.
J Fish Biol. 2025 Apr 30;107(2):673-8. doi: 10.1111/jfb.70047.
We present a random pattern of body size ratios between adjacent ranked group members in the humbug damselfish Dascyllus aruanus. This random distribution of size ratios differs from the other well-known group-living coral reef fishes which exhibit non-random, well-defined and closely regulated size differences between ranks. Our results suggest a relaxation of social constraints in D. aruanus which may be due to its social system, mating system, capacity for movement or a combination thereof. Investigating how these traits co-vary within and among populations is an interesting avenue of future research.
我们展示了肩斑雀鲷（Dascyllus aruanus）相邻等级群体成员之间身体大小比例的随机模式。这种大小比例的随机分布不同于其他著名的群居珊瑚礁鱼类，后者在等级之间表现出非随机、明确且受到严格调控的大小差异。我们的结果表明，肩斑雀鲷的社会限制有所放松，这可能归因于其社会系统、交配系统、运动能力或这些因素的综合作用。研究这些特征在种群内部和种群之间如何共同变化是未来研究的一个有趣方向。
