Journal of fish biology最新文献

{"title":"On the type locality of the Naso Stardrum Stellifer naso (Jordan 1889), and comments on morphological change over a century.","authors":"Jonas Andrade-Santos, Marcelo R Britto","doi":"10.1111/jfb.70072","DOIUrl":"https://doi.org/10.1111/jfb.70072","url":null,"abstract":"<p><p>Stellifer naso is known from the State of Bahia (Brazil), but there is a lack of an accurate definition of its type locality. Thayer's expedition (around 1865-1866), led by Louis Agassiz and staff from the Museum of Comparative Zoology (MCZ, Harvard University), intended to explore Brazilian fauna and flora, with most of its material housed in the MCZ and used to describe several species, including S. naso. Examination of specimens from the original description of that species, housed in the MCZ and the Smithsonian National Museum of Natural History, helped review the accurate point of origin for such specimens. A combination of data from reproductive biology and the history of the region further support the actual type locality of S. naso as Iguape Bay, with an error radius of 2.5 km. Damming in the Paraguaçu River in the early 1980s might have had an impact on the morphological variation over time recorded to this species.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144023379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Movement behaviours of stocked and wild lake trout Salvelinus namaycush determined using acoustic telemetry.","authors":"Matthew H Futia, J Ellen Marsden","doi":"10.1111/jfb.70071","DOIUrl":"https://doi.org/10.1111/jfb.70071","url":null,"abstract":"<p><p>Hatchery practices are a critical tool of fisheries management to supplement diminished fish populations and restore extirpated species. However, stocking programs that successfully restore self-sustaining populations are rare. Unintentional artificial selection and domestication of hatchery-reared fish are potential limitations to the success of stocked individuals by selecting for behaviours that are poorly suited for natural conditions. Here, we compared seasonal movement behaviours between an established population of hatchery origin (stocked) and naturally produced (wild) lake trout (Salvelinus namaycush) in Lake Champlain at a range of sizes, including immature and mature fish. Fifty-six stocked and 34 wild lake trout were implanted with acoustic transmitters, including 45 transmitters with temperature and pressure (depth) sensors, to evaluate three-dimensional movement. Movement behaviours were assessed based on the number of distinct lake regions used, proportional time spent among lake regions, average daily distance travelled and depth distribution. Overall, horizontal and vertical movements were similar between stocked and wild lake trout across sizes, although individuals tended to occupy shallower depths at larger sizes. Seasonal differences in movement behaviours were observed and in some cases were dependent on origin. For all lake trout, average daily movement was greatest during fall and least during summer. Depth occupied, however, had an opposite trend, with the deepest average depths during summer and shallowest during fall and winter. The proportion of time spent among lake regions and variability in depth occupied also varied seasonally but only for wild fish, and included less time spent in individual regions and greater depth variability during fall compared to other seasons. While origin had insignificant effects in most models we evaluated, model predictions consistently suggested stocked lake trout had slightly smaller movements than wild fish. These results suggest that hatchery practices may have long-term, unintended effects on fish behaviour yet overall differences are likely subtle.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-05-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144010861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Not all social coral reef fishes form strict size-based dominance hierarchies: An investigation of intraspecific size ratios in Dascyllus aruanus.","authors":"Rebecca Branconi, Peter M Buston, Marian Y L Wong","doi":"10.1111/jfb.70047","DOIUrl":"https://doi.org/10.1111/jfb.70047","url":null,"abstract":"<p><p>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.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144023376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The grime fighting potential of fish guts and the battle for responsible consumption","authors":"William Bernard Perry","doi":"10.1111/jfb.16075","DOIUrl":"https://doi.org/10.1111/jfb.16075","url":null,"abstract":"&lt;p&gt;We live in a world that is dominated by mixed capitalist economies, a continuum of market and government control (Jahan &amp; Mahmud, &lt;span&gt;2022&lt;/span&gt;). Yet, at the heart of any capitalist system is the dependency on consumption to drive economic growth, which is problematic when resources are finite and integral to ecosystems. Consumption also generates waste. Escalating consumption observed throughout the 20&lt;sup&gt;th&lt;/sup&gt; Century can be found at the root of many environmental catastrophes. Aquatic systems and fish are on that front line, suffering from consumption (e.g. overfishing (Barausse &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2011&lt;/span&gt;), deforestation (Bojsen &amp; Barriga, &lt;span&gt;2002&lt;/span&gt;) and over abstraction of water (Benejam &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2010&lt;/span&gt;)) and the end products of consumption (e.g. climate change (Kutsyn, &lt;span&gt;2025&lt;/span&gt;), plastic pollution (Rochman &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2013&lt;/span&gt;), soil pollution (Stauffer &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2011&lt;/span&gt;), air pollution (Nduka &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2022&lt;/span&gt;) and water pollution (Carney Almroth &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2021&lt;/span&gt;).&lt;/p&gt;&lt;p&gt;To try and save natural systems from the ravages of overconsumption and to protect the natural world in which capitalist systems depend, the United Nations created Sustainable Development Goal 12: Responsible consumption and production (UN, &lt;span&gt;2024&lt;/span&gt;). To achieve the targets within this goal, a post-capitalism vision and roadmap has been proposed by some, whereby the tenets of neoliberalism (free-market capitalism, deregulation, and reduction in government) are replaced with sustainable consumption and reduced waste (Dermody &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2021&lt;/span&gt;). One approach to reducing waste is through the idea of a circular economy, where materials never become waste.&lt;/p&gt;&lt;p&gt;However, turning waste materials into useful products that can re-enter society takes innovation and can be susceptible to greenwashing. One industry guilty of producing vast quantities of waste are food fisheries, which are geared towards harvesting fillets for human consumption, leaving up to 70% of the fish behind as a by-product (e.g. heads, viscera, skin, bones and scales) (FAO, &lt;span&gt;2022&lt;/span&gt;). At best, that 70% will end up in fishmeal for aquaculture, but more often will end up in landfill, open-air dumps or water sources. This is despite these tissues containing valuable nutrients, minerals, and, as explored by Friedman &lt;i&gt;et al&lt;/i&gt;. (&lt;span&gt;2025&lt;/span&gt;), enzymes - specifically proteinases found in the intestine.&lt;/p&gt;&lt;p&gt;Proteinases are the most widely used enzymes in industrial bioprocesses, and in previous work Friedman &lt;i&gt;et al&lt;/i&gt;. (&lt;span&gt;2022&lt;/span&gt;) characterized the optimal pH and temperature for these proteinases, isolated from the guts of four fish species. However, for these enzymes to be used in products such as detergents they must be able to function in the presence of other compounds such as surfactants and oxidizing agents. In this issue, Friedman &lt;i&gt;et al&lt;/i&gt;","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":"106 4","pages":"989"},"PeriodicalIF":1.7,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jfb.16075","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143884052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Reproductive behaviour, developmental morphology and sexual dimorphism in Taranetz's lumpsucker, Eumicrotremus taranetzi (Cottoidei: Cyclopteridae) - A long-term aquarium study.","authors":"Koji Matsuzaki, Toshiaki Mori, Yoshiaki Kai","doi":"10.1111/jfb.70034","DOIUrl":"https://doi.org/10.1111/jfb.70034","url":null,"abstract":"<p><p>Spawning behaviour, ontogenetic development and sexual dimorphism of the Taranetz's lumpsucker Eumicrotremus taranetzi are described based on aquarium observations. Reproductive behaviour was observed from ca. 1000 days after hatching [dah, female ca. 45.0 mm body length (BL), male ca. 37.0 mm BL], including territorial males remaining on the artificial substrate after spawning and protecting eggs until hatching. Some of the eggs were moved to a smaller tank for hatching. Eggs hatched approximately 110 days after spawning at an average water temperature of 2.8°C. Pelvic-fin sucker formation begins in the egg at 83 days (completed at 90 days) after fertilization (daf). Newly hatched larvae have a smooth body (without spines or bony tubercles), fully developed fins (except for the caudal fin) and adhesive suckers. Larvae attach themselves to the bottom or side of the tank immediately after hatching. Bony tubercles on the body appear first on the head at 50 dah. Males and females exhibited distinct sexual dimorphism in 15 body measurements and the number of bony tubercles at 200 days post hatching (dph), probably related to the egg-guarding behaviour of males.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144004777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Freshwater fishes of the Waterberg aquatic ecoregion, South Africa: Diversity, taxonomic conflicts and conservation concerns.","authors":"Darragh J Woodford, Mandla Magoro, Wilbert T Kadye, Martinus Scheepers, Yonela Sithole, Tadiwa I Mutizwa, Tholoana Ntokoane, Albert Chakona","doi":"10.1111/jfb.70007","DOIUrl":"https://doi.org/10.1111/jfb.70007","url":null,"abstract":"<p><p>Southern Africa is a region denoted by both high levels of fish diversity, some of it cryptic and unrecognised by current taxonomy, and severely threatened freshwater ecosystems. The Waterberg, a key aquatic ecoregion of the greater Limpopo River basin in South Africa, represents an area with high terrestrial conservation value but is lacking in aquatic biodiversity information. This study characterised this unique aquatic ecoregion's fish diversity, their biogeographic patterns and threats to this biodiversity. A total of 29 fish species (11 families, 19 genera) were identified, with many distinct upland fish communities occurring within the high-altitude headwaters of the ecoregion, whereas lowland fish communities tended to be more homogeneous. Mitochondrial CO1 barcoding revealed genetically distinct lineages in four presumed-widespread southern African species: the shortfin barb, Enteromius brevipinnis (Jubb, 1966); hyphen barb, Enteromius bifrenatus (Fowler, 1935); straightfin barb, Enteromius paludinosus (Peters, 1852) and snake catfish, Clarias theodorae Weber, 1897, that were restricted to the Waterberg aquatic ecoregion. The level of genetic divergence suggests that these four Waterberg-restricted lineages are likely new candidate species. These findings indicate the Waterberg to be a biogeographic island within the greater Zambezian ichthyofaunal region of southern Africa, which should be prioritised for aquatic ecosystem conservation. Current terrestrial conservation structures in the region, encapsulated within the Waterberg Biosphere Reserve, appear to protect this distinct ichthyofauna from human land-use-derived impacts. Nonetheless, the presence of the invasive predatory largemouth bass (Micropterus nigricans) inside the biosphere represents a credible conservation threat. Engagement with biosphere stakeholders will be critical for managing this threat to the Waterberg's unique ichthyofauna going forward.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144063864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advances in telemetry approaches and technologies applied to fish ecology and management.","authors":"Johann Mourier, Taryn S Murray, Robert J Lennox, Kim Birnie-Gauvin","doi":"10.1111/jfb.70064","DOIUrl":"https://doi.org/10.1111/jfb.70064","url":null,"abstract":"","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144063828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hidden in plain view: A new Labeo (Cyprinidae: Labeoninae) endemic to the Kouilou-Niari River basin in the Lower Guinea ichthyological province.","authors":"Tobit L D Liyandja, Melanie L J Stiassny","doi":"10.1111/jfb.70062","DOIUrl":"https://doi.org/10.1111/jfb.70062","url":null,"abstract":"<p><p>Labeo niariensis sp. nov., a small-sized Labeo species, is described from the Kouilou-Niari River system in the Lower Guinean ichthyofaunal province. The species is a member of the newly erected Labeo annectens species group. Morphologically, it is distinguished from all congeners by the presence of a deeply bifurcate posterior process of the kinethmoid. It further differs from all the described Lower Guinean Labeo, except L. annectens and Labeo nunensis, by possessing six (vs. five or fewer) pre-dorsal vertebrae. The new species is further distinguished from L. annectens and L. nunensis by the presence of a prominent anterior notch and moderately developed posterior process on the first infraorbital (lachrymal) versus absence of an anterior notch and an elongated posterior process, presence of a deeply ovoid second infraorbital versus narrow and elongate, and by meristic and morphometric differences in body shape and proportions. L. niariensis is currently only known from the Kouilou-Niari River system in the Republic of Congo.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144027092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Postprandial oxygen consumption, ammonia excretion and carbon dioxide production of channel and blue catfish.","authors":"Brian D Ott, Dakoda O Chisolm, Timothy J Pfeiffer","doi":"10.1111/jfb.70065","DOIUrl":"https://doi.org/10.1111/jfb.70065","url":null,"abstract":"<p><p>Fishes undergo dramatic physiological changes upon consumption of a meal, including an increase in oxygen consumption to support the metabolic cost of digestion [specific dynamic action (SDA)] and an increase in the excretion of ammonia. Channel catfish (Ictalurus punctatus) and blue catfish (I. furcatus) are two species commonly used for commercial aquaculture production in the United States. Postprandial ammonia excretion and oxygen consumption of both channel and blue catfish were measured at 25 and 32°C. Rates of both ammonia excretion and oxygen consumption increased quickly after feeding and were significantly higher within 2 h postfeeding. Ammonia excretion of channel catfish peaked 6 h postfeeding at both 25 and 32°C, with peak ammonia excretion rates increasing 8.3- and 4.7-fold higher than fasting rates at 25 and 32°C, respectively. Ammonia excretion of blue catfish at 25°C peaked 6.6-fold higher than fasting rates at 12 h postfeeding and 5.5-fold higher than fasting rates 6 h postfeeding at 32°C. Relative to fasting levels, postprandial oxygen consumption of channel catfish peaked 1.8- and 2.0-fold higher at 25 and 32°C, respectively. Blue catfish oxygen consumption peaked 1.9- and 1.8-fold higher at 25 and 32°C, respectively. Both channel and blue catfish rapidly increase ammonia excretion and oxygen consumption in response to feeding, with temperature mostly affecting changes in peak and minimum rates.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144004718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Contrasting the contributions of 12S eDNA metabarcoding, visual surveys and anaesthetic collections to the historical regional diversity of cryptobenthic and conspicuous fish.","authors":"Camila Mac Loughlin, Tania Valdivia-Carrillo, Salwa El Khattabi, Fausto Valenzuela-Quiñonez, Hector Reyes-Bonilla, Adrian Munguia-Vega","doi":"10.1111/jfb.70054","DOIUrl":"https://doi.org/10.1111/jfb.70054","url":null,"abstract":"<p><p>Taxonomic gaps in community biodiversity assessments are now commonly addressed by combining traditional monitoring methods and environmental DNA (eDNA) metabarcoding, widely recognized for having the ability to uncover rare and cryptic diversity. However, only a few studies have assessed the efficacy of this novel technique for detecting cryptobenthic fishes and tested the limitations of incomplete genetic reference availability for a historically neglected component of fish communities. Our goals were (i) to compare cryptobenthic and conspicuous fish detections by 12S eDNA metabarcoding, visual surveys and anaesthetic fish collections, and (ii) to compare emerging regional diversity patterns against a long-term historical record for the Gulf of California. Despite adding new local references for 36 cryptobenthic fishes, 12S eDNA metabarcoding detected only seven taxa. Visual surveys provided similar results, highlighting fish collections as the primary source, with 57 cryptobenthic fishes recovered. Conspicuous fishes had an equal and highly complementary contribution by 12S eDNA and visual surveys. When combining contemporary detections from all methods, we recovered 43% of cryptobenthic and 16% of conspicuous fishes, relative to the historical records. The spatial community structure for detected cryptobenthic fishes differed from historical expectations and conspicuous fishes, showing no differences in community richness nor composition between Northern and Central Gulf communities. Our study highlights the limitations of eDNA for monitoring cryptobenthic fishes, and that their patterns of community structuring are driven by distinct factors compared to conspicuous fishes.</p>","PeriodicalId":15794,"journal":{"name":"Journal of fish biology","volume":" ","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143988144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}