ERDDAP > info > bcodmo_dataset_713206

Grid DAP Data	Sub- set	Table DAP Data	Make A Graph	W M S	Source Data Files	Acces- sible	Title	Sum- mary	ISO, Metadata	Back- ground Info	RSS	E mail	Institution	Dataset ID
		data	graph		files	public	Sex, length, and mass of adult M. beryllina collected in Suisun Bay, California from 2012- 2013.		I   M	background			BCO-DMO	bcodmo_dataset_713206

The Dataset's Variables and Attributes

Row Type	Variable Name	Attribute Name	Data Type	Value
attribute	NC_GLOBAL	access_formats	String	.htmlTable,.csv,.json,.mat,.nc,.tsv
attribute	NC_GLOBAL	acquisition_description	String	Fish survey data\u00a0were collected by beach seine in the Suisun Bay region of the San Francisco Bay-Delta by Susanne Brander and Bryan Cole. Sampling methodology is fully described in Brander et al. (2013). Laboratory spawning trials were used to determine the relationship between sex ratio and egg production. Adult inland silversides were placed together in 95 liter circular tanks and allowed to spawn on an artificial spawning substrate (polyester yarn clumps). Substrate was removed daily and inspected for eggs; fertilization was determined by coloration. Full details are provided in White et al. (2017).
attribute	NC_GLOBAL	awards_0_award_nid	String	542383
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1435473
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward?AWD_ID=1435473
attribute	NC_GLOBAL	awards_0_funder_name	String	NSF Division of Ocean Sciences
attribute	NC_GLOBAL	awards_0_funding_acronym	String	NSF OCE
attribute	NC_GLOBAL	awards_0_funding_source_nid	String	355
attribute	NC_GLOBAL	awards_0_program_manager	String	David L. Garrison
attribute	NC_GLOBAL	awards_0_program_manager_nid	String	50534
attribute	NC_GLOBAL	cdm_data_type	String	Other
attribute	NC_GLOBAL	comment	String	Sex, ID, and mass of fish in trials J. W. White and S. Brander, PIs Version 4 August 2017
attribute	NC_GLOBAL	Conventions	String	COARDS, CF-1.6, ACDD-1.3
attribute	NC_GLOBAL	creator_email	String	info at bco-dmo.org
attribute	NC_GLOBAL	creator_name	String	BCO-DMO
attribute	NC_GLOBAL	creator_type	String	institution
attribute	NC_GLOBAL	creator_url	String	https://www.bco-dmo.org/
attribute	NC_GLOBAL	data_source	String	extract_data_as_tsv version 2.3 19 Dec 2019
attribute	NC_GLOBAL	date_created	String	2017-08-18T19:35:38Z
attribute	NC_GLOBAL	date_modified	String	2019-03-19T18:56:40Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.713206.1
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/713206
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	Purse-seine
attribute	NC_GLOBAL	instruments_0_dataset_instrument_description	String	Used to collect samples
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	713214
attribute	NC_GLOBAL	instruments_0_description	String	A purse seine is a large wall of netting deployed in a circle around an entire school of fish. The seine has floats along the top line with a lead line of chain along the bottom. Once a school of fish is located, a skiff pulls the seine into the water as the vessel encircles the school with the net. A cable running along the bottom is then pulled in, "pursing" the net closed on the bottom, preventing fish from escaping by swimming downward. The catch is harvested by bringing the net alongside the vessel and brailing the fish aboard.
attribute	NC_GLOBAL	instruments_0_instrument_name	String	Purse-seine Fishing Gear
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	675173
attribute	NC_GLOBAL	instruments_0_supplied_name	String	Beach seine
attribute	NC_GLOBAL	keywords	String	bco, bco-dmo, biological, chemical, data, dataset, dmo, erddap, gonad, gonad_mass, management, mass, note, oceanography, office, preliminary, ripe, sex, tag
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/713206/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/713206
attribute	NC_GLOBAL	param_mapping	String	{'713206': {}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/713206/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	University of North Carolina - Wilmington
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	UNC-Wilmington
attribute	NC_GLOBAL	people_0_person_name	String	J Wilson White
attribute	NC_GLOBAL	people_0_person_nid	String	516429
attribute	NC_GLOBAL	people_0_role	String	Principal Investigator
attribute	NC_GLOBAL	people_0_role_type	String	originator
attribute	NC_GLOBAL	people_1_affiliation	String	University of North Carolina - Wilmington
attribute	NC_GLOBAL	people_1_affiliation_acronym	String	UNC-Wilmington
attribute	NC_GLOBAL	people_1_person_name	String	Dr Susanne Brander
attribute	NC_GLOBAL	people_1_person_nid	String	712930
attribute	NC_GLOBAL	people_1_role	String	Co-Principal Investigator
attribute	NC_GLOBAL	people_1_role_type	String	originator
attribute	NC_GLOBAL	people_2_affiliation	String	University of North Carolina - Wilmington
attribute	NC_GLOBAL	people_2_affiliation_acronym	String	UNC-Wilmington
attribute	NC_GLOBAL	people_2_person_name	String	J Wilson White
attribute	NC_GLOBAL	people_2_person_nid	String	516429
attribute	NC_GLOBAL	people_2_role	String	Contact
attribute	NC_GLOBAL	people_2_role_type	String	related
attribute	NC_GLOBAL	people_3_affiliation	String	Woods Hole Oceanographic Institution
attribute	NC_GLOBAL	people_3_affiliation_acronym	String	WHOI BCO-DMO
attribute	NC_GLOBAL	people_3_person_name	String	Hannah Ake
attribute	NC_GLOBAL	people_3_person_nid	String	650173
attribute	NC_GLOBAL	people_3_role	String	BCO-DMO Data Manager
attribute	NC_GLOBAL	people_3_role_type	String	related
attribute	NC_GLOBAL	project	String	Goby size-selection
attribute	NC_GLOBAL	projects_0_acronym	String	Goby size-selection
attribute	NC_GLOBAL	projects_0_description	String	Description from NSF award abstract: Many marine fish species change sex during their lifetimes, and many of them are targets of commercial and recreational fishing. The timing of sex change in these animals is often related to body size, so populations typically consist of many small fish of the initial sex (usually female) and few large fish of the other sex (usually male). In nature, smaller fish are at a greater risk of mortality due to predation, but fishermen tend to seek larger fish. Thus fishing that targets larger individuals may skew sex ratios, removing enough of the larger sex to hinder reproduction. However, the extent to which size-selective mortality affects sex-changing fishes is poorly understood. This research will explore the effects of size-selective mortality on the population dynamics of sex-changing species using an integrated set of field experiments and mathematical models. It will provide the first experimental exploration of the sensitivity of different sex-change patterns and reproductive strategies to selective mortality. The results will advance our knowledge of the susceptibility and resilience of sex-changing organisms to different types of size-selective mortality and will reveal how sex-changing species can recover after size-selection ceases, as in populations within marine reserves where fishing is suddenly prohibited. The findings will inform fisheries management policies, which do not currently consider the ability of a species to change sex in setting fisheries regulations. This project will consist of a three-year study of the effects of size-specific mortality on sex-changing fishes. Field experiments will use three closely related rocky-reef fishes that differ in sex-change pattern and are amenable to field manipulation and direct measurement of reproductive output. The species include a protogynous hermaphrodite (a female-to-male sex-change pattern common among harvested species) and two simultaneous hermaphrodites that differ in their ability to switch between male and female. Two types of experiments will be conducted on populations established on replicate patch reefs at Santa Catalina Island, California: (1) sex ratios will be manipulated to determine when the scarcity of males limits population-level reproductive output; and (2) experiments cross-factoring the intensity of mortality with the form of size-selection (i.e., higher mortality of large or small individuals) will test the demographic consequences of size-selective mortality. In concert with the field experiments, size- and sex-structured population models (integral projection models) will be developed for use in three ways: (1) to evaluate how different types of selective mortality should affect population dynamics; (2) to predict outcomes of the field experiments, testing/validating the model and allowing direct prediction of the ecological significance of short-term selection; and (3) to fit to existing survey data for a fourth species, a widely fished, sex-changing fish, inside and outside of marine reserves. Part (3) will evaluate whether and how quickly the mating system and reproductive output of that species (not directly measurable in the field) is recovering inside reserves. This integrated set of field experiments and models will yield novel insight into the effects of size-selective mortality on the population dynamics of sex-changing marine species.
attribute	NC_GLOBAL	projects_0_end_date	String	2018-02
attribute	NC_GLOBAL	projects_0_geolocation	String	Southern California, Santa Catalina Island
attribute	NC_GLOBAL	projects_0_name	String	Impacts of size-selective mortality on sex-changing fishes
attribute	NC_GLOBAL	projects_0_project_nid	String	516431
attribute	NC_GLOBAL	projects_0_start_date	String	2015-03
attribute	NC_GLOBAL	publisher_name	String	Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute	NC_GLOBAL	publisher_type	String	institution
attribute	NC_GLOBAL	sourceUrl	String	(local files)
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	Sex, length, and mass of adult M. beryllina collected in Suisun Bay, California from 2012-2013.
attribute	NC_GLOBAL	title	String	Sex, length, and mass of adult M. beryllina collected in Suisun Bay, California from 2012-2013.
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	sex		String
attribute	sex	bcodmo_name	String	unknown
attribute	sex	description	String	Sex of fish; F = femaile; M= male
attribute	sex	long_name	String	Sex
attribute	sex	units	String	unitless
variable	tag		String
attribute	tag	bcodmo_name	String	unknown
attribute	tag	description	String	Alphanumeric tag number
attribute	tag	long_name	String	Tag
attribute	tag	units	String	unitless
variable	id		String
attribute	id	bcodmo_name	String	unknown
attribute	id	description	String	Fish ID associated with tag
attribute	id	long_name	String	Id
attribute	id	units	String	unitless
variable	ripe		String
attribute	ripe	bcodmo_name	String	unknown
attribute	ripe	description	String	Were eggs ripe at time of dissection? Y = yes; N = no; X = male fish
attribute	ripe	long_name	String	Ripe
attribute	ripe	units	String	unitless
variable	note		String
attribute	note	bcodmo_name	String	comment
attribute	note	description	String	Observer notes
attribute	note	long_name	String	Note
attribute	note	units	String	unitless
variable	SL		byte
attribute	SL	_FillValue	byte	127
attribute	SL	actual_range	byte	42, 70
attribute	SL	bcodmo_name	String	unknown
attribute	SL	description	String	Standard length of fish
attribute	SL	long_name	String	SL
attribute	SL	units	String	millimeters
variable	mass		float
attribute	mass	_FillValue	float	NaN
attribute	mass	actual_range	float	0.8, 3.3
attribute	mass	bcodmo_name	String	unknown
attribute	mass	description	String	Mass of fish
attribute	mass	long_name	String	Mass
attribute	mass	units	String	grams
variable	gonad_mass		float
attribute	gonad_mass	_FillValue	float	NaN
attribute	gonad_mass	actual_range	float	0.0, 0.65
attribute	gonad_mass	bcodmo_name	String	unknown
attribute	gonad_mass	description	String	Mass of fish gonad
attribute	gonad_mass	long_name	String	Gonad Mass
attribute	gonad_mass	units	String	grams

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.