Delayed effects of capture-induced barotrauma on physical condition and behavioral competency of recompressed yelloweye rockfish, Sebastes ruberrimus

Rebuilding of some U.S. West Coast rockfish (Sebastes spp.) stocks relies heavily on mandatory fisherydiscard, however the long-term condition of discarded fish experiencing capture-related barotraumais unknown. We conducted two studies designed to evaluate delayed mortality, physical condition,and behavioral competency of yelloweye rockfish, Sebastes ruberrimus, experiencing barotrauma dur-ing capture followed by recompression (assisted return to depth of capture).

Juvenile coho salmon movement, growth and survival in a coastal basin of southern Oregon

Juvenile salmonids display highly variable spatial and temporal patterns of early dispersal that are influenced by density‐dependent and density‐independent factors. Although juvenile coho salmon (Oncorhynchus kisutch) movement patterns in streams and their relationship with body mass and growth have been examined in previous studies, most observations were limited to one season or one stream section.

Agricultural land use and macroinvertebra​te assemblages in lowland temporary streams of the Willamette Valley, Oregon, USA

Streams that dry during part of the year are common throughout the world, yet studies of themacroinverte​brate assemblages in these types of streams are rare compared to those in permanentstream​s; and studies that assess the effects of agriculture on temporary stream invertebrates are evenrarer. We studied macroinvertebra​te assemblages in lowland temporary streams of a region with highagricultura​l land use, the southern Willamette Valley, Oregon, USA. Overall assemblages were dominatedby non-insects, and invertebrates tolerant of organic pollution.

Classification of Animal Movement Behavior through Residence in Space and Time

Identification and classification of behavior states in animal movement data can be complex, temporally biased, time-intensive, scale-​dependent, and unstandardized across studies and taxa. Large movement datasets are increasingly common and there is a need for efficient methods of data exploration that adjust to the individual variability of each track. We present the Residence in Space and Time (RST) method to classify behavior patterns in movement data based on the concept that behavior states can be partitioned by the amount of space and time occupied in an area of constant scale.

Tracking reveals limited interactions between Campbell Albatross and fisheries during the breeding season

Fisheries-related mortality has been influential in driving global declines in seabird populations. Understanding the overlap between seabird distribution and fisheries is one important element in assessing bycatch risk, and may be achieved by tracking the movements of individual birds and fishing vessels. Here, researchers assess the spatiotemporal overlap between the vulnerable Campbell Albatross Thalassarche impavida and large ([28 m) commercial fishing boats in New Zealand’s Exclusive Economic Zone (EEZ).

Development of a PCR assay to detect cyprinid herpesvirus 1 in koi and common carp

Cyprinid herpesvirus 1 (CyHV1) infects all scaled and color varieties of common carp Cyprinus carpio, including koi. While it is most often associated with unsightly growths known as ‘carp pox,’ the underlying lesion (epidermal hyperplasia) can arise from a variety of disease processes. CyHV1-induced epidermal hyperplasia may occur transiently in response to water temperature, and thus histopathology cannot be used in isolation to assess CyHV1 infection status.

Detection of ORF6 protein associated with latent KHV infection

Koi herpesvirus (KHV) is highly pathogenic to Cyprinus carpio. KHV can also become latent in recovered fish and reactivate from latency under stressful conditions. Understanding KHV latency is important for development of strategies against herpesvirus latent infection. Our previous studies found KHV ORF6 mRNA is detectable during latent infection. In this study, ORF6 protein expression was investigated by a polyclonal antibody specific to ORF6 peptide.

Persistent spatial structuring of coastal ocean acidification in the California Current System.

The near-term progression of ocean acidification (OA) is projected to bring about sharp changes in the chemistry of coastal upwelling ecosystems. The distribution of OA exposure across these early-impact systems, however, is highly uncertain and limits our understanding of whether and how spatial management actions can be deployed to ameliorate future impacts.