Although they have received little attention, interspecific feeding associations are a particular predation behavior in which two or more different species temporary feed simultaneously on the same food sources to obtain greater success in predation. These collaborations can be either mutualistic, commensalistic, or parasitic. One of the best-known examples is the seabird–cetacean associations. Prey herding is the foraging tactic most used in these associations and consists of swimming around and under prey balls to trap them in the water column. Here we reported some new evidence of a fish–bird interspecific feeding association between the European seabass, Dicentrarchus labrax (Linnaeus, 1758) and the European shag, Gulosus aristotelis (Linnaeus, 1761). We analyzed this association through the photograph and video documentation provided by “citizen scientists” in the Mediterranean Sea. We collected reliable proofs of this behavior, at least, in three instances from observations made by recreational fishermen in the Kvarner bay (Croatia, North Adriatic Sea). From the photographs and videos made available, we attempted to reconstruct a predation strategy adopted by these associated species to better understand the advantage this provides during hunting. Although it is not yet clear whether this association is an opportunistic behavior of the European seabass or a mutualistic strategy used by both species to improve their catching success, this feeding association seems to increase the chances to defeat prey defense strategies. Notably, some behavioral imitation of hunting strategies may be put in place by seabasses, which often feed in association with dolphins and other birds using similar prey herding strategies.

尽管它们很少受到关注，但种间觅食协会是一种特殊的捕食行为，其中两个或多个不同的物种同时以相同的食物来源为食，以获得更大的捕食成功。这些合作可以是互惠的、共生的或寄生的。最著名的例子之一是海鸟-鲸类动物协会。猎物放牧是这些协会中最常用的觅食策略，包括在猎物球周围和下方游动以将它们困在水柱中。在这里，我们报告了一些新的证据，证明欧洲鲈鱼Dicentrarchus labrax（Linnaeus，1758 年）和欧洲鲱鱼 Gulosus aristotelis之间存在鱼-鸟种间觅食关系（林奈，1761 年）。我们通过地中海“公民科学家”提供的照片和视频文件分析了这种关联。我们至少在三个实例中收集了这种行为的可靠证据，这些证据来自 Kvarner 湾（克罗地亚，北亚得里亚海）休闲渔民的观察。从提供的照片和视频中，我们试图重建这些相关物种采用的捕食策略，以更好地了解这在狩猎期间提供的优势。虽然目前尚不清楚这种联系是欧洲鲈鱼的机会主义行为还是两个物种用来提高捕捞成功率的互惠策略，但这种进食联系似乎增加了击败猎物防御策略的机会。尤其，