Herring fisheries in the White Sea in the 18th–beginning of the 20th Centuries: Spatial and temporal patterns and factors affecting the catch fluctuations

Increasing Regional Temperatures Associated with Delays in Atlantic Salmon Sea‐Run Timing at the Southern Edge of the European Distribution

“…Atlantic salmon feeding behavior is also affected by high temperatures, which tend to reduce appetite in this species (Elliott 1991;Grande and Andersen 1991). Other concomitant factors at sea-such as depletion of abundance of salmon prey (Atlantic herring Clupea harengus, pink shrimp Farfantepenaeus duorarum, white shrimp Litopenaeus setiferus, and Pandalus spp., and other species) associated with NAOI, fisheries (e.g., Buch 2004; Guijarro 2007;Lajus et al 2007), or both-may also significantly contribute to weight reduction. Poor condition factor would cause lower swimming stamina and delays in arrival to the natal river, enhanced by the fact that these salmon run the longest distance from feeding grounds of all European Atlantic salmon.…”

Introgressive hybridization between the Atlantic and Pacific herrings (Clupea harengus and C. pallasii) in the north of Europe

“…This is certainly true for Balsfjord, where Atlanto-Scandian C. harengus can be found in the upper water layers and Balsfjord stock in the deeper water layers (Jørstad and Pedersen 1986). It is also common for young Atlanto-Scandian stock to enter the White Sea and stay there for 1-2 years to feed (Lajus et al 2007). The sizes of immigrating groups vary with decadal shifts in currents and climate, as seen in fisheries history data showing occasional large catches of Atlantic herring in the White Sea (e.g.…”

“…The sizes of immigrating groups vary with decadal shifts in currents and climate, as seen in fisheries history data showing occasional large catches of Atlantic herring in the White Sea (e.g. over 16 000 tons in 1842; Lajus et al 2007). While no cases of Atlantic herring breeding in the White Sea (or Balsfjord) are known, occasional retention of migrating juveniles and their joining with local C. pallasii breeding schools seems possible.…”

“…The distribution of the Atlantic herring (Atlanto-Scandian C. harengus) extends into these same northeast European seas during the feeding migrations, whence the two species occasionally cooccur. Nevertheless, their breeding areas are considered to be separate (Svetovidov 1952;Jørstad and Pedersen 1986;Lajus et al 2007). Biogeographical and genetic data suggest that the European populations of C. pallasii represent a relatively recent, post-glacial invasion (<12,000 years) by the Asian Pacific-Beringian lineage of the Pacific herring to the Atlantic realm (Laakkonen et al 2013).…”

Historical development of fisheries in northern Europe—Reconstructing chronology of interactions between nature and man

“…Before the fishery developed, bluefin tuna was present and seen by fishermen and scientific observers (MacKenzie and Myers, accepted for publication). Other papers have documented how technological developments, governmental financial support and other socio-economic factors influenced fishing effort, the spatial distribution (expansion) of exploitation, and yields Eero et al, 2007;Lajus et al, 2007a;Ojaveer et al, 2007).…”